^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * tps65010 - driver for tps6501x power management chips
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2004 Texas Instruments
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2004-2005 David Brownell
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/debugfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/mfd/tps65010.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/gpio/driver.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define DRIVER_VERSION "2 May 2005"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define DRIVER_NAME (tps65010_driver.driver.name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) MODULE_DESCRIPTION("TPS6501x Power Management Driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) static struct i2c_driver tps65010_driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) /* This driver handles a family of multipurpose chips, which incorporate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * voltage regulators, lithium ion/polymer battery charging, GPIOs, LEDs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * and other features often needed in portable devices like cell phones
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * or digital cameras.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) * The tps65011 and tps65013 have different voltage settings compared
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) * to tps65010 and tps65012. The tps65013 has a NO_CHG status/irq.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) * All except tps65010 have "wait" mode, possibly defaulted so that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * battery-insert != device-on.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * We could distinguish between some models by checking VDCDC1.UVLO or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * other registers, unless they've been changed already after powerup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * as part of board setup by a bootloader.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) enum tps_model {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) TPS65010,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) TPS65011,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) TPS65012,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) TPS65013,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct tps65010 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct i2c_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct mutex lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct delayed_work work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct dentry *file;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) unsigned charging:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) unsigned por:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) unsigned model:8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) u16 vbus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define FLAG_VBUS_CHANGED 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #define FLAG_IRQ_ENABLE 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) /* copies of last register state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) u8 chgstatus, regstatus, chgconf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) u8 nmask1, nmask2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) u8 outmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct gpio_chip chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct platform_device *leds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #define POWER_POLL_DELAY msecs_to_jiffies(5000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) #if defined(DEBUG) || defined(CONFIG_DEBUG_FS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) static void dbg_chgstat(char *buf, size_t len, u8 chgstatus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) snprintf(buf, len, "%02x%s%s%s%s%s%s%s%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) chgstatus,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) (chgstatus & TPS_CHG_USB) ? " USB" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) (chgstatus & TPS_CHG_AC) ? " AC" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) (chgstatus & TPS_CHG_THERM) ? " therm" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) (chgstatus & TPS_CHG_TERM) ? " done" :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) ((chgstatus & (TPS_CHG_USB|TPS_CHG_AC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) ? " (charging)" : ""),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) (chgstatus & TPS_CHG_TAPER_TMO) ? " taper_tmo" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) (chgstatus & TPS_CHG_CHG_TMO) ? " charge_tmo" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) (chgstatus & TPS_CHG_PRECHG_TMO) ? " prechg_tmo" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) (chgstatus & TPS_CHG_TEMP_ERR) ? " temp_err" : "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) static void dbg_regstat(char *buf, size_t len, u8 regstatus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) snprintf(buf, len, "%02x %s%s%s%s%s%s%s%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) regstatus,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) (regstatus & TPS_REG_ONOFF) ? "off" : "(on)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) (regstatus & TPS_REG_COVER) ? " uncover" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) (regstatus & TPS_REG_UVLO) ? " UVLO" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) (regstatus & TPS_REG_NO_CHG) ? " NO_CHG" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) (regstatus & TPS_REG_PG_LD02) ? " ld02_bad" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) (regstatus & TPS_REG_PG_LD01) ? " ld01_bad" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) (regstatus & TPS_REG_PG_MAIN) ? " main_bad" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) (regstatus & TPS_REG_PG_CORE) ? " core_bad" : "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) static void dbg_chgconf(int por, char *buf, size_t len, u8 chgconfig)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) const char *hibit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) if (por)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) hibit = (chgconfig & TPS_CHARGE_POR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) ? "POR=69ms" : "POR=1sec";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) hibit = (chgconfig & TPS65013_AUA) ? "AUA" : "";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) snprintf(buf, len, "%02x %s%s%s AC=%d%% USB=%dmA %sCharge\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) chgconfig, hibit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) (chgconfig & TPS_CHARGE_RESET) ? " reset" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) (chgconfig & TPS_CHARGE_FAST) ? " fast" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) ({int p; switch ((chgconfig >> 3) & 3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) case 3: p = 100; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) case 2: p = 75; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) case 1: p = 50; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) default: p = 25; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }; p; }),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) (chgconfig & TPS_VBUS_CHARGING)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) ? ((chgconfig & TPS_VBUS_500MA) ? 500 : 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) : 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) (chgconfig & TPS_CHARGE_ENABLE) ? "" : "No");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) #ifdef DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) static void show_chgstatus(const char *label, u8 chgstatus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) char buf [100];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) dbg_chgstat(buf, sizeof buf, chgstatus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) pr_debug("%s: %s %s", DRIVER_NAME, label, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) static void show_regstatus(const char *label, u8 regstatus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) char buf [100];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) dbg_regstat(buf, sizeof buf, regstatus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) pr_debug("%s: %s %s", DRIVER_NAME, label, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) static void show_chgconfig(int por, const char *label, u8 chgconfig)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) char buf [100];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) dbg_chgconf(por, buf, sizeof buf, chgconfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) pr_debug("%s: %s %s", DRIVER_NAME, label, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) static inline void show_chgstatus(const char *label, u8 chgstatus) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) static inline void show_regstatus(const char *label, u8 chgstatus) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) static inline void show_chgconfig(int por, const char *label, u8 chgconfig) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) #ifdef CONFIG_DEBUG_FS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) static int dbg_show(struct seq_file *s, void *_)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) struct tps65010 *tps = s->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) u8 value, v2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) unsigned i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) char buf[100];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) const char *chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) switch (tps->model) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) case TPS65010: chip = "tps65010"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) case TPS65011: chip = "tps65011"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) case TPS65012: chip = "tps65012"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) case TPS65013: chip = "tps65013"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) default: chip = NULL; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) seq_printf(s, "driver %s\nversion %s\nchip %s\n\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) DRIVER_NAME, DRIVER_VERSION, chip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) mutex_lock(&tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) /* FIXME how can we tell whether a battery is present?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) * likely involves a charge gauging chip (like BQ26501).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) seq_printf(s, "%scharging\n\n", tps->charging ? "" : "(not) ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) /* registers for monitoring battery charging and status; note
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) * that reading chgstat and regstat may ack IRQs...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) value = i2c_smbus_read_byte_data(tps->client, TPS_CHGCONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) dbg_chgconf(tps->por, buf, sizeof buf, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) seq_printf(s, "chgconfig %s", buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) value = i2c_smbus_read_byte_data(tps->client, TPS_CHGSTATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) dbg_chgstat(buf, sizeof buf, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) seq_printf(s, "chgstat %s", buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) value = i2c_smbus_read_byte_data(tps->client, TPS_MASK1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) dbg_chgstat(buf, sizeof buf, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) seq_printf(s, "mask1 %s", buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) /* ignore ackint1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) value = i2c_smbus_read_byte_data(tps->client, TPS_REGSTATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) dbg_regstat(buf, sizeof buf, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) seq_printf(s, "regstat %s", buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) value = i2c_smbus_read_byte_data(tps->client, TPS_MASK2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) dbg_regstat(buf, sizeof buf, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) seq_printf(s, "mask2 %s\n", buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) /* ignore ackint2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) queue_delayed_work(system_power_efficient_wq, &tps->work,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) POWER_POLL_DELAY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) /* VMAIN voltage, enable lowpower, etc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) value = i2c_smbus_read_byte_data(tps->client, TPS_VDCDC1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) seq_printf(s, "vdcdc1 %02x\n", value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) /* VCORE voltage, vibrator on/off */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) value = i2c_smbus_read_byte_data(tps->client, TPS_VDCDC2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) seq_printf(s, "vdcdc2 %02x\n", value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) /* both LD0s, and their lowpower behavior */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) value = i2c_smbus_read_byte_data(tps->client, TPS_VREGS1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) seq_printf(s, "vregs1 %02x\n\n", value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) /* LEDs and GPIOs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) value = i2c_smbus_read_byte_data(tps->client, TPS_LED1_ON);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) v2 = i2c_smbus_read_byte_data(tps->client, TPS_LED1_PER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) seq_printf(s, "led1 %s, on=%02x, per=%02x, %d/%d msec\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) (value & 0x80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) ? ((v2 & 0x80) ? "on" : "off")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) : ((v2 & 0x80) ? "blink" : "(nPG)"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) value, v2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) (value & 0x7f) * 10, (v2 & 0x7f) * 100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) value = i2c_smbus_read_byte_data(tps->client, TPS_LED2_ON);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) v2 = i2c_smbus_read_byte_data(tps->client, TPS_LED2_PER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) seq_printf(s, "led2 %s, on=%02x, per=%02x, %d/%d msec\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) (value & 0x80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) ? ((v2 & 0x80) ? "on" : "off")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) : ((v2 & 0x80) ? "blink" : "off"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) value, v2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) (value & 0x7f) * 10, (v2 & 0x7f) * 100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) value = i2c_smbus_read_byte_data(tps->client, TPS_DEFGPIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) v2 = i2c_smbus_read_byte_data(tps->client, TPS_MASK3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) seq_printf(s, "defgpio %02x mask3 %02x\n", value, v2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) for (i = 0; i < 4; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) if (value & (1 << (4 + i)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) seq_printf(s, " gpio%d-out %s\n", i + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) (value & (1 << i)) ? "low" : "hi ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) seq_printf(s, " gpio%d-in %s %s %s\n", i + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) (value & (1 << i)) ? "hi " : "low",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) (v2 & (1 << i)) ? "no-irq" : "irq",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) (v2 & (1 << (4 + i))) ? "rising" : "falling");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) mutex_unlock(&tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) static int dbg_tps_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) return single_open(file, dbg_show, inode->i_private);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) static const struct file_operations debug_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) .open = dbg_tps_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) .read = seq_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) .llseek = seq_lseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) .release = single_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) #define DEBUG_FOPS &debug_fops
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) #define DEBUG_FOPS NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) /* handle IRQS in a task context, so we can use I2C calls */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) static void tps65010_interrupt(struct tps65010 *tps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) u8 tmp = 0, mask, poll;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) /* IRQs won't trigger for certain events, but we can get
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) * others by polling (normally, with external power applied).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) poll = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) /* regstatus irqs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) if (tps->nmask2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) tmp = i2c_smbus_read_byte_data(tps->client, TPS_REGSTATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) mask = tmp ^ tps->regstatus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) tps->regstatus = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) mask &= tps->nmask2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) mask = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) if (mask) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) tps->regstatus = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) /* may need to shut something down ... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) /* "off" usually means deep sleep */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) if (tmp & TPS_REG_ONOFF) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) pr_info("%s: power off button\n", DRIVER_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) #if 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) /* REVISIT: this might need its own workqueue
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) * plus tweaks including deadlock avoidance ...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) * also needs to get error handling and probably
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) * an #ifdef CONFIG_HIBERNATION
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) hibernate();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) poll = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) /* chgstatus irqs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (tps->nmask1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) tmp = i2c_smbus_read_byte_data(tps->client, TPS_CHGSTATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) mask = tmp ^ tps->chgstatus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) tps->chgstatus = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) mask &= tps->nmask1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) mask = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) if (mask) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) unsigned charging = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) show_chgstatus("chg/irq", tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) if (tmp & (TPS_CHG_USB|TPS_CHG_AC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) show_chgconfig(tps->por, "conf", tps->chgconf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) /* Unless it was turned off or disabled, we charge any
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) * battery whenever there's power available for it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) * and the charger hasn't been disabled.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) if (!(tps->chgstatus & ~(TPS_CHG_USB|TPS_CHG_AC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) && (tps->chgstatus & (TPS_CHG_USB|TPS_CHG_AC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) && (tps->chgconf & TPS_CHARGE_ENABLE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) if (tps->chgstatus & TPS_CHG_USB) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) /* VBUS options are readonly until reconnect */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) if (mask & TPS_CHG_USB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) set_bit(FLAG_VBUS_CHANGED, &tps->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) charging = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) } else if (tps->chgstatus & TPS_CHG_AC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) charging = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) if (charging != tps->charging) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) tps->charging = charging;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) pr_info("%s: battery %scharging\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) DRIVER_NAME, charging ? "" :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) ((tps->chgstatus & (TPS_CHG_USB|TPS_CHG_AC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) ? "NOT " : "dis"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) /* always poll to detect (a) power removal, without tps65013
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) * NO_CHG IRQ; or (b) restart of charging after stop.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) if ((tps->model != TPS65013 || !tps->charging)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) && (tps->chgstatus & (TPS_CHG_USB|TPS_CHG_AC)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) poll = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) if (poll)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) queue_delayed_work(system_power_efficient_wq, &tps->work,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) POWER_POLL_DELAY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) /* also potentially gpio-in rise or fall */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) /* handle IRQs and polling using keventd for now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) static void tps65010_work(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) struct tps65010 *tps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) tps = container_of(to_delayed_work(work), struct tps65010, work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) mutex_lock(&tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) tps65010_interrupt(tps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) if (test_and_clear_bit(FLAG_VBUS_CHANGED, &tps->flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) u8 chgconfig, tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) chgconfig = i2c_smbus_read_byte_data(tps->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) TPS_CHGCONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) chgconfig &= ~(TPS_VBUS_500MA | TPS_VBUS_CHARGING);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) if (tps->vbus == 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) chgconfig |= TPS_VBUS_500MA | TPS_VBUS_CHARGING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) else if (tps->vbus >= 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) chgconfig |= TPS_VBUS_CHARGING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) i2c_smbus_write_byte_data(tps->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) TPS_CHGCONFIG, chgconfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) /* vbus update fails unless VBUS is connected! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) tmp = i2c_smbus_read_byte_data(tps->client, TPS_CHGCONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) tps->chgconf = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) show_chgconfig(tps->por, "update vbus", tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) if (test_and_clear_bit(FLAG_IRQ_ENABLE, &tps->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) enable_irq(tps->client->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) mutex_unlock(&tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) static irqreturn_t tps65010_irq(int irq, void *_tps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) struct tps65010 *tps = _tps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) disable_irq_nosync(irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) set_bit(FLAG_IRQ_ENABLE, &tps->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) queue_delayed_work(system_power_efficient_wq, &tps->work, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) /* offsets 0..3 == GPIO1..GPIO4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) * offsets 4..5 == LED1/nPG, LED2 (we set one of the non-BLINK modes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) * offset 6 == vibrator motor driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) tps65010_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) if (offset < 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) tps65010_set_gpio_out_value(offset + 1, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) else if (offset < 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) tps65010_set_led(offset - 3, value ? ON : OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) tps65010_set_vib(value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) tps65010_output(struct gpio_chip *chip, unsigned offset, int value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) /* GPIOs may be input-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) if (offset < 4) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) struct tps65010 *tps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) tps = gpiochip_get_data(chip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) if (!(tps->outmask & (1 << offset)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) tps65010_set_gpio_out_value(offset + 1, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) } else if (offset < 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) tps65010_set_led(offset - 3, value ? ON : OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) tps65010_set_vib(value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) static int tps65010_gpio_get(struct gpio_chip *chip, unsigned offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) int value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) struct tps65010 *tps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) tps = gpiochip_get_data(chip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) if (offset < 4) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) value = i2c_smbus_read_byte_data(tps->client, TPS_DEFGPIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) if (value < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) return value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) if (value & (1 << (offset + 4))) /* output */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) return !(value & (1 << offset));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) else /* input */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) return !!(value & (1 << offset));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) /* REVISIT we *could* report LED1/nPG and LED2 state ... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) static struct tps65010 *the_tps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) static int tps65010_remove(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) struct tps65010 *tps = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) struct tps65010_board *board = dev_get_platdata(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) if (board && board->teardown) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) int status = board->teardown(client, board->context);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) if (status < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) dev_dbg(&client->dev, "board %s %s err %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) "teardown", client->name, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) if (client->irq > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) free_irq(client->irq, tps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) cancel_delayed_work_sync(&tps->work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) debugfs_remove(tps->file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) the_tps = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) static int tps65010_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) struct tps65010 *tps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) struct tps65010_board *board = dev_get_platdata(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) if (the_tps) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) dev_dbg(&client->dev, "only one tps6501x chip allowed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) if (!tps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) mutex_init(&tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) INIT_DELAYED_WORK(&tps->work, tps65010_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) tps->client = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) tps->model = id->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) /* the IRQ is active low, but many gpio lines can't support that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) * so this driver uses falling-edge triggers instead.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) if (client->irq > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) status = request_irq(client->irq, tps65010_irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) IRQF_TRIGGER_FALLING, DRIVER_NAME, tps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) if (status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) dev_dbg(&client->dev, "can't get IRQ %d, err %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) client->irq, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) /* annoying race here, ideally we'd have an option
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) * to claim the irq now and enable it later.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) * FIXME genirq IRQF_NOAUTOEN now solves that ...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) disable_irq(client->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) set_bit(FLAG_IRQ_ENABLE, &tps->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) dev_warn(&client->dev, "IRQ not configured!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) switch (tps->model) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) case TPS65010:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) case TPS65012:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) tps->por = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) /* else CHGCONFIG.POR is replaced by AUA, enabling a WAIT mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) tps->chgconf = i2c_smbus_read_byte_data(client, TPS_CHGCONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) show_chgconfig(tps->por, "conf/init", tps->chgconf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) show_chgstatus("chg/init",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) i2c_smbus_read_byte_data(client, TPS_CHGSTATUS));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) show_regstatus("reg/init",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) i2c_smbus_read_byte_data(client, TPS_REGSTATUS));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) pr_debug("%s: vdcdc1 0x%02x, vdcdc2 %02x, vregs1 %02x\n", DRIVER_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) i2c_smbus_read_byte_data(client, TPS_VDCDC1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) i2c_smbus_read_byte_data(client, TPS_VDCDC2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) i2c_smbus_read_byte_data(client, TPS_VREGS1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) pr_debug("%s: defgpio 0x%02x, mask3 0x%02x\n", DRIVER_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) i2c_smbus_read_byte_data(client, TPS_DEFGPIO),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) i2c_smbus_read_byte_data(client, TPS_MASK3));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) i2c_set_clientdata(client, tps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) the_tps = tps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) #if defined(CONFIG_USB_GADGET) && !defined(CONFIG_USB_OTG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) /* USB hosts can't draw VBUS. OTG devices could, later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) * when OTG infrastructure enables it. USB peripherals
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) * could be relying on VBUS while booting, though.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) tps->vbus = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) /* unmask the "interesting" irqs, then poll once to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) * kickstart monitoring, initialize shadowed status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) * registers, and maybe disable VBUS draw.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) tps->nmask1 = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) (void) i2c_smbus_write_byte_data(client, TPS_MASK1, ~tps->nmask1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) tps->nmask2 = TPS_REG_ONOFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) if (tps->model == TPS65013)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) tps->nmask2 |= TPS_REG_NO_CHG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) (void) i2c_smbus_write_byte_data(client, TPS_MASK2, ~tps->nmask2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) (void) i2c_smbus_write_byte_data(client, TPS_MASK3, 0x0f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) | i2c_smbus_read_byte_data(client, TPS_MASK3));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) tps65010_work(&tps->work.work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) tps->file = debugfs_create_file(DRIVER_NAME, S_IRUGO, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) tps, DEBUG_FOPS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) /* optionally register GPIOs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) if (board && board->base != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) tps->outmask = board->outmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) tps->chip.label = client->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) tps->chip.parent = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) tps->chip.owner = THIS_MODULE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) tps->chip.set = tps65010_gpio_set;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) tps->chip.direction_output = tps65010_output;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) /* NOTE: only partial support for inputs; nyet IRQs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) tps->chip.get = tps65010_gpio_get;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) tps->chip.base = board->base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) tps->chip.ngpio = 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) tps->chip.can_sleep = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) status = gpiochip_add_data(&tps->chip, tps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) if (status < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) dev_err(&client->dev, "can't add gpiochip, err %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) else if (board->setup) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) status = board->setup(client, board->context);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) if (status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) dev_dbg(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) "board %s %s err %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) "setup", client->name, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) static const struct i2c_device_id tps65010_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) { "tps65010", TPS65010 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) { "tps65011", TPS65011 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) { "tps65012", TPS65012 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) { "tps65013", TPS65013 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) { "tps65014", TPS65011 }, /* tps65011 charging at 6.5V max */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) MODULE_DEVICE_TABLE(i2c, tps65010_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) static struct i2c_driver tps65010_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) .name = "tps65010",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) .probe = tps65010_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) .remove = tps65010_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) .id_table = tps65010_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) /* Draw from VBUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) * 0 mA -- DON'T DRAW (might supply power instead)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) * 100 mA -- usb unit load (slowest charge rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) * 500 mA -- usb high power (fast battery charge)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) int tps65010_set_vbus_draw(unsigned mA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) if (!the_tps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) /* assumes non-SMP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) local_irq_save(flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) if (mA >= 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) mA = 500;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) else if (mA >= 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) mA = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) mA = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) the_tps->vbus = mA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) if ((the_tps->chgstatus & TPS_CHG_USB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) && test_and_set_bit(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) FLAG_VBUS_CHANGED, &the_tps->flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) /* gadget drivers call this in_irq() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) queue_delayed_work(system_power_efficient_wq, &the_tps->work,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) local_irq_restore(flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) EXPORT_SYMBOL(tps65010_set_vbus_draw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) /* tps65010_set_gpio_out_value parameter:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) * gpio: GPIO1, GPIO2, GPIO3 or GPIO4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) * value: LOW or HIGH
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) int tps65010_set_gpio_out_value(unsigned gpio, unsigned value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) unsigned defgpio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) if (!the_tps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) if ((gpio < GPIO1) || (gpio > GPIO4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) mutex_lock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) defgpio = i2c_smbus_read_byte_data(the_tps->client, TPS_DEFGPIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) /* Configure GPIO for output */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) defgpio |= 1 << (gpio + 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) /* Writing 1 forces a logic 0 on that GPIO and vice versa */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) switch (value) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) case LOW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) defgpio |= 1 << (gpio - 1); /* set GPIO low by writing 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) /* case HIGH: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) defgpio &= ~(1 << (gpio - 1)); /* set GPIO high by writing 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) status = i2c_smbus_write_byte_data(the_tps->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) TPS_DEFGPIO, defgpio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) pr_debug("%s: gpio%dout = %s, defgpio 0x%02x\n", DRIVER_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) gpio, value ? "high" : "low",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) i2c_smbus_read_byte_data(the_tps->client, TPS_DEFGPIO));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) mutex_unlock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) EXPORT_SYMBOL(tps65010_set_gpio_out_value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) /* tps65010_set_led parameter:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) * led: LED1 or LED2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) * mode: ON, OFF or BLINK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) int tps65010_set_led(unsigned led, unsigned mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) unsigned led_on, led_per, offs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) if (!the_tps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) if (led == LED1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) offs = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) offs = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) led = LED2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) mutex_lock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) pr_debug("%s: led%i_on 0x%02x\n", DRIVER_NAME, led,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) i2c_smbus_read_byte_data(the_tps->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) TPS_LED1_ON + offs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) pr_debug("%s: led%i_per 0x%02x\n", DRIVER_NAME, led,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) i2c_smbus_read_byte_data(the_tps->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) TPS_LED1_PER + offs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) switch (mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) case OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) led_on = 1 << 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) led_per = 0 << 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) case ON:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) led_on = 1 << 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) led_per = 1 << 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) case BLINK:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) led_on = 0x30 | (0 << 7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) led_per = 0x08 | (1 << 7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) printk(KERN_ERR "%s: Wrong mode parameter for set_led()\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) DRIVER_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) mutex_unlock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) status = i2c_smbus_write_byte_data(the_tps->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) TPS_LED1_ON + offs, led_on);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) if (status != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) printk(KERN_ERR "%s: Failed to write led%i_on register\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) DRIVER_NAME, led);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) mutex_unlock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) pr_debug("%s: led%i_on 0x%02x\n", DRIVER_NAME, led,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) i2c_smbus_read_byte_data(the_tps->client, TPS_LED1_ON + offs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) status = i2c_smbus_write_byte_data(the_tps->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) TPS_LED1_PER + offs, led_per);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) if (status != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) printk(KERN_ERR "%s: Failed to write led%i_per register\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) DRIVER_NAME, led);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) mutex_unlock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) pr_debug("%s: led%i_per 0x%02x\n", DRIVER_NAME, led,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) i2c_smbus_read_byte_data(the_tps->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) TPS_LED1_PER + offs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) mutex_unlock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) EXPORT_SYMBOL(tps65010_set_led);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) /* tps65010_set_vib parameter:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) * value: ON or OFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) int tps65010_set_vib(unsigned value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) unsigned vdcdc2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) if (!the_tps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) mutex_lock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) vdcdc2 = i2c_smbus_read_byte_data(the_tps->client, TPS_VDCDC2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) vdcdc2 &= ~(1 << 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) if (value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) vdcdc2 |= (1 << 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) status = i2c_smbus_write_byte_data(the_tps->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) TPS_VDCDC2, vdcdc2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) pr_debug("%s: vibrator %s\n", DRIVER_NAME, value ? "on" : "off");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) mutex_unlock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) EXPORT_SYMBOL(tps65010_set_vib);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) /* tps65010_set_low_pwr parameter:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) * mode: ON or OFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) int tps65010_set_low_pwr(unsigned mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) unsigned vdcdc1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) if (!the_tps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) mutex_lock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) pr_debug("%s: %s low_pwr, vdcdc1 0x%02x\n", DRIVER_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) mode ? "enable" : "disable",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) i2c_smbus_read_byte_data(the_tps->client, TPS_VDCDC1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) vdcdc1 = i2c_smbus_read_byte_data(the_tps->client, TPS_VDCDC1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) switch (mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) case OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) vdcdc1 &= ~TPS_ENABLE_LP; /* disable ENABLE_LP bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) /* case ON: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) vdcdc1 |= TPS_ENABLE_LP; /* enable ENABLE_LP bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) status = i2c_smbus_write_byte_data(the_tps->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) TPS_VDCDC1, vdcdc1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) if (status != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) printk(KERN_ERR "%s: Failed to write vdcdc1 register\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) DRIVER_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) pr_debug("%s: vdcdc1 0x%02x\n", DRIVER_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) i2c_smbus_read_byte_data(the_tps->client, TPS_VDCDC1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) mutex_unlock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) EXPORT_SYMBOL(tps65010_set_low_pwr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) /* tps65010_config_vregs1 parameter:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) * value to be written to VREGS1 register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) * Note: The complete register is written, set all bits you need
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) int tps65010_config_vregs1(unsigned value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) if (!the_tps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) mutex_lock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) pr_debug("%s: vregs1 0x%02x\n", DRIVER_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) i2c_smbus_read_byte_data(the_tps->client, TPS_VREGS1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) status = i2c_smbus_write_byte_data(the_tps->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) TPS_VREGS1, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) if (status != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) printk(KERN_ERR "%s: Failed to write vregs1 register\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) DRIVER_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) pr_debug("%s: vregs1 0x%02x\n", DRIVER_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) i2c_smbus_read_byte_data(the_tps->client, TPS_VREGS1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) mutex_unlock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) EXPORT_SYMBOL(tps65010_config_vregs1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) int tps65010_config_vdcdc2(unsigned value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) struct i2c_client *c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) if (!the_tps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) c = the_tps->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) mutex_lock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) pr_debug("%s: vdcdc2 0x%02x\n", DRIVER_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) i2c_smbus_read_byte_data(c, TPS_VDCDC2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) status = i2c_smbus_write_byte_data(c, TPS_VDCDC2, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) if (status != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) printk(KERN_ERR "%s: Failed to write vdcdc2 register\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) DRIVER_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) pr_debug("%s: vregs1 0x%02x\n", DRIVER_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) i2c_smbus_read_byte_data(c, TPS_VDCDC2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) mutex_unlock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) EXPORT_SYMBOL(tps65010_config_vdcdc2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) /* tps65013_set_low_pwr parameter:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) * mode: ON or OFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) /* FIXME: Assumes AC or USB power is present. Setting AUA bit is not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) required if power supply is through a battery */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) int tps65013_set_low_pwr(unsigned mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) unsigned vdcdc1, chgconfig;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) if (!the_tps || the_tps->por)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) mutex_lock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) pr_debug("%s: %s low_pwr, chgconfig 0x%02x vdcdc1 0x%02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) DRIVER_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) mode ? "enable" : "disable",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) i2c_smbus_read_byte_data(the_tps->client, TPS_CHGCONFIG),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) i2c_smbus_read_byte_data(the_tps->client, TPS_VDCDC1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) chgconfig = i2c_smbus_read_byte_data(the_tps->client, TPS_CHGCONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) vdcdc1 = i2c_smbus_read_byte_data(the_tps->client, TPS_VDCDC1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) switch (mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) case OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) chgconfig &= ~TPS65013_AUA; /* disable AUA bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) vdcdc1 &= ~TPS_ENABLE_LP; /* disable ENABLE_LP bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) /* case ON: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) chgconfig |= TPS65013_AUA; /* enable AUA bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) vdcdc1 |= TPS_ENABLE_LP; /* enable ENABLE_LP bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) status = i2c_smbus_write_byte_data(the_tps->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) TPS_CHGCONFIG, chgconfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) if (status != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) printk(KERN_ERR "%s: Failed to write chconfig register\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) DRIVER_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) mutex_unlock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) chgconfig = i2c_smbus_read_byte_data(the_tps->client, TPS_CHGCONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) the_tps->chgconf = chgconfig;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) show_chgconfig(0, "chgconf", chgconfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) status = i2c_smbus_write_byte_data(the_tps->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) TPS_VDCDC1, vdcdc1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) if (status != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) printk(KERN_ERR "%s: Failed to write vdcdc1 register\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) DRIVER_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) pr_debug("%s: vdcdc1 0x%02x\n", DRIVER_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) i2c_smbus_read_byte_data(the_tps->client, TPS_VDCDC1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) mutex_unlock(&the_tps->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) EXPORT_SYMBOL(tps65013_set_low_pwr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) static int __init tps_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) return i2c_add_driver(&tps65010_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) /* NOTE: this MUST be initialized before the other parts of the system
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) * that rely on it ... but after the i2c bus on which this relies.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) * That is, much earlier than on PC-type systems, which don't often use
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) * I2C as a core system bus.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) subsys_initcall(tps_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) static void __exit tps_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) i2c_del_driver(&tps65010_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) module_exit(tps_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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