^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Battery driver for wm8350 PMIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2007, 2008 Wolfson Microelectronics PLC.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Based on OLPC Battery Driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Copyright 2006 David Woodhouse <dwmw2@infradead.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/power_supply.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/mfd/wm8350/supply.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/mfd/wm8350/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/mfd/wm8350/comparator.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static int wm8350_read_battery_uvolts(struct wm8350 *wm8350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) return wm8350_read_auxadc(wm8350, WM8350_AUXADC_BATT, 0, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * WM8350_AUX_COEFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static int wm8350_read_line_uvolts(struct wm8350 *wm8350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) return wm8350_read_auxadc(wm8350, WM8350_AUXADC_LINE, 0, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * WM8350_AUX_COEFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static int wm8350_read_usb_uvolts(struct wm8350 *wm8350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) return wm8350_read_auxadc(wm8350, WM8350_AUXADC_USB, 0, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * WM8350_AUX_COEFF;
^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) #define WM8350_BATT_SUPPLY 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define WM8350_USB_SUPPLY 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define WM8350_LINE_SUPPLY 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static inline int wm8350_charge_time_min(struct wm8350 *wm8350, int min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) if (!wm8350->power.rev_g_coeff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) return (((min - 30) / 15) & 0xf) << 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) return (((min - 30) / 30) & 0xf) << 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) static int wm8350_get_supplies(struct wm8350 *wm8350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) u16 sm, ov, co, chrg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) int supplies = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) sm = wm8350_reg_read(wm8350, WM8350_STATE_MACHINE_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) ov = wm8350_reg_read(wm8350, WM8350_MISC_OVERRIDES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) co = wm8350_reg_read(wm8350, WM8350_COMPARATOR_OVERRIDES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) chrg = wm8350_reg_read(wm8350, WM8350_BATTERY_CHARGER_CONTROL_2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) /* USB_SM */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) sm = (sm & WM8350_USB_SM_MASK) >> WM8350_USB_SM_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) /* CHG_ISEL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) chrg &= WM8350_CHG_ISEL_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) /* If the USB state machine is active then we're using that with or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * without battery, otherwise check for wall supply */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) if (((sm == WM8350_USB_SM_100_SLV) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) (sm == WM8350_USB_SM_500_SLV) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) (sm == WM8350_USB_SM_STDBY_SLV))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) && !(ov & WM8350_USB_LIMIT_OVRDE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) supplies = WM8350_USB_SUPPLY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) else if (((sm == WM8350_USB_SM_100_SLV) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) (sm == WM8350_USB_SM_500_SLV) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) (sm == WM8350_USB_SM_STDBY_SLV))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) && (ov & WM8350_USB_LIMIT_OVRDE) && (chrg == 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) supplies = WM8350_USB_SUPPLY | WM8350_BATT_SUPPLY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) else if (co & WM8350_WALL_FB_OVRDE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) supplies = WM8350_LINE_SUPPLY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) supplies = WM8350_BATT_SUPPLY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) return supplies;
^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) static int wm8350_charger_config(struct wm8350 *wm8350,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct wm8350_charger_policy *policy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) u16 reg, eoc_mA, fast_limit_mA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) if (!policy) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) dev_warn(wm8350->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) "No charger policy, charger not configured.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) /* make sure USB fast charge current is not > 500mA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) if (policy->fast_limit_USB_mA > 500) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) dev_err(wm8350->dev, "USB fast charge > 500mA\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) eoc_mA = WM8350_CHG_EOC_mA(policy->eoc_mA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) wm8350_reg_unlock(wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) reg = wm8350_reg_read(wm8350, WM8350_BATTERY_CHARGER_CONTROL_1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) & WM8350_CHG_ENA_R168;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) wm8350_reg_write(wm8350, WM8350_BATTERY_CHARGER_CONTROL_1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) reg | eoc_mA | policy->trickle_start_mV |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) WM8350_CHG_TRICKLE_TEMP_CHOKE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) WM8350_CHG_TRICKLE_USB_CHOKE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) WM8350_CHG_FAST_USB_THROTTLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) if (wm8350_get_supplies(wm8350) & WM8350_USB_SUPPLY) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) fast_limit_mA =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) WM8350_CHG_FAST_LIMIT_mA(policy->fast_limit_USB_mA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) wm8350_reg_write(wm8350, WM8350_BATTERY_CHARGER_CONTROL_2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) policy->charge_mV | policy->trickle_charge_USB_mA |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) fast_limit_mA | wm8350_charge_time_min(wm8350,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) policy->charge_timeout));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) fast_limit_mA =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) WM8350_CHG_FAST_LIMIT_mA(policy->fast_limit_mA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) wm8350_reg_write(wm8350, WM8350_BATTERY_CHARGER_CONTROL_2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) policy->charge_mV | policy->trickle_charge_mA |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) fast_limit_mA | wm8350_charge_time_min(wm8350,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) policy->charge_timeout));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) wm8350_reg_lock(wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static int wm8350_batt_status(struct wm8350 *wm8350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) u16 state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) state = wm8350_reg_read(wm8350, WM8350_BATTERY_CHARGER_CONTROL_2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) state &= WM8350_CHG_STS_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) switch (state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) case WM8350_CHG_STS_OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) return POWER_SUPPLY_STATUS_DISCHARGING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) case WM8350_CHG_STS_TRICKLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) case WM8350_CHG_STS_FAST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) return POWER_SUPPLY_STATUS_CHARGING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) return POWER_SUPPLY_STATUS_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) }
^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 ssize_t charger_state_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) struct wm8350 *wm8350 = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) char *charge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) int state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) state = wm8350_reg_read(wm8350, WM8350_BATTERY_CHARGER_CONTROL_2) &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) WM8350_CHG_STS_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) switch (state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) case WM8350_CHG_STS_OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) charge = "Charger Off";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) case WM8350_CHG_STS_TRICKLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) charge = "Trickle Charging";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) case WM8350_CHG_STS_FAST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) charge = "Fast Charging";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) return sprintf(buf, "%s\n", charge);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) static DEVICE_ATTR_RO(charger_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) static irqreturn_t wm8350_charger_handler(int irq, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) struct wm8350 *wm8350 = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) struct wm8350_power *power = &wm8350->power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) struct wm8350_charger_policy *policy = power->policy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) switch (irq - wm8350->irq_base) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) case WM8350_IRQ_CHG_BAT_FAIL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) dev_err(wm8350->dev, "battery failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) case WM8350_IRQ_CHG_TO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) dev_err(wm8350->dev, "charger timeout\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) power_supply_changed(power->battery);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) case WM8350_IRQ_CHG_BAT_HOT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) case WM8350_IRQ_CHG_BAT_COLD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) case WM8350_IRQ_CHG_START:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) case WM8350_IRQ_CHG_END:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) power_supply_changed(power->battery);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) case WM8350_IRQ_CHG_FAST_RDY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) dev_dbg(wm8350->dev, "fast charger ready\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) wm8350_charger_config(wm8350, policy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) wm8350_reg_unlock(wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) wm8350_set_bits(wm8350, WM8350_BATTERY_CHARGER_CONTROL_1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) WM8350_CHG_FAST);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) wm8350_reg_lock(wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) case WM8350_IRQ_CHG_VBATT_LT_3P9:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) dev_warn(wm8350->dev, "battery < 3.9V\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) case WM8350_IRQ_CHG_VBATT_LT_3P1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) dev_warn(wm8350->dev, "battery < 3.1V\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) case WM8350_IRQ_CHG_VBATT_LT_2P85:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) dev_warn(wm8350->dev, "battery < 2.85V\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) /* Supply change. We will overnotify but it should do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) * no harm. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) case WM8350_IRQ_EXT_USB_FB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) case WM8350_IRQ_EXT_WALL_FB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) wm8350_charger_config(wm8350, policy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) case WM8350_IRQ_EXT_BAT_FB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) power_supply_changed(power->battery);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) power_supply_changed(power->usb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) power_supply_changed(power->ac);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) dev_err(wm8350->dev, "Unknown interrupt %d\n", irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) /*********************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) * AC Power
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) *********************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) static int wm8350_ac_get_prop(struct power_supply *psy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) enum power_supply_property psp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) union power_supply_propval *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) struct wm8350 *wm8350 = dev_get_drvdata(psy->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) switch (psp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) case POWER_SUPPLY_PROP_ONLINE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) val->intval = !!(wm8350_get_supplies(wm8350) &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) WM8350_LINE_SUPPLY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) case POWER_SUPPLY_PROP_VOLTAGE_NOW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) val->intval = wm8350_read_line_uvolts(wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) static enum power_supply_property wm8350_ac_props[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) POWER_SUPPLY_PROP_ONLINE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) POWER_SUPPLY_PROP_VOLTAGE_NOW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) /*********************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) * USB Power
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) *********************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) static int wm8350_usb_get_prop(struct power_supply *psy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) enum power_supply_property psp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) union power_supply_propval *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) struct wm8350 *wm8350 = dev_get_drvdata(psy->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) switch (psp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) case POWER_SUPPLY_PROP_ONLINE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) val->intval = !!(wm8350_get_supplies(wm8350) &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) WM8350_USB_SUPPLY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) case POWER_SUPPLY_PROP_VOLTAGE_NOW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) val->intval = wm8350_read_usb_uvolts(wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) static enum power_supply_property wm8350_usb_props[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) POWER_SUPPLY_PROP_ONLINE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) POWER_SUPPLY_PROP_VOLTAGE_NOW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) };
^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) * Battery properties
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) *********************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) static int wm8350_bat_check_health(struct wm8350 *wm8350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) u16 reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) if (wm8350_read_battery_uvolts(wm8350) < 2850000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) return POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) reg = wm8350_reg_read(wm8350, WM8350_CHARGER_OVERRIDES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) if (reg & WM8350_CHG_BATT_HOT_OVRDE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) return POWER_SUPPLY_HEALTH_OVERHEAT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) if (reg & WM8350_CHG_BATT_COLD_OVRDE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) return POWER_SUPPLY_HEALTH_COLD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) return POWER_SUPPLY_HEALTH_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) static int wm8350_bat_get_charge_type(struct wm8350 *wm8350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) int state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) state = wm8350_reg_read(wm8350, WM8350_BATTERY_CHARGER_CONTROL_2) &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) WM8350_CHG_STS_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) switch (state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) case WM8350_CHG_STS_OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) return POWER_SUPPLY_CHARGE_TYPE_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) case WM8350_CHG_STS_TRICKLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) return POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) case WM8350_CHG_STS_FAST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) return POWER_SUPPLY_CHARGE_TYPE_FAST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) return POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
^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) static int wm8350_bat_get_property(struct power_supply *psy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) enum power_supply_property psp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) union power_supply_propval *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) struct wm8350 *wm8350 = dev_get_drvdata(psy->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) switch (psp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) case POWER_SUPPLY_PROP_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) val->intval = wm8350_batt_status(wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) case POWER_SUPPLY_PROP_ONLINE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) val->intval = !!(wm8350_get_supplies(wm8350) &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) WM8350_BATT_SUPPLY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) case POWER_SUPPLY_PROP_VOLTAGE_NOW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) val->intval = wm8350_read_battery_uvolts(wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) case POWER_SUPPLY_PROP_HEALTH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) val->intval = wm8350_bat_check_health(wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) case POWER_SUPPLY_PROP_CHARGE_TYPE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) val->intval = wm8350_bat_get_charge_type(wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) static enum power_supply_property wm8350_bat_props[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) POWER_SUPPLY_PROP_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) POWER_SUPPLY_PROP_ONLINE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) POWER_SUPPLY_PROP_VOLTAGE_NOW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) POWER_SUPPLY_PROP_HEALTH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) POWER_SUPPLY_PROP_CHARGE_TYPE,
^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) static const struct power_supply_desc wm8350_ac_desc = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) .name = "wm8350-ac",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) .type = POWER_SUPPLY_TYPE_MAINS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) .properties = wm8350_ac_props,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) .num_properties = ARRAY_SIZE(wm8350_ac_props),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) .get_property = wm8350_ac_get_prop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) static const struct power_supply_desc wm8350_battery_desc = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) .name = "wm8350-battery",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) .properties = wm8350_bat_props,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) .num_properties = ARRAY_SIZE(wm8350_bat_props),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) .get_property = wm8350_bat_get_property,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) .use_for_apm = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) static const struct power_supply_desc wm8350_usb_desc = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) .name = "wm8350-usb",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) .type = POWER_SUPPLY_TYPE_USB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) .properties = wm8350_usb_props,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) .num_properties = ARRAY_SIZE(wm8350_usb_props),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) .get_property = wm8350_usb_get_prop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) /*********************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) * Initialisation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) *********************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) static int wm8350_init_charger(struct wm8350 *wm8350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) /* register our interest in charger events */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_BAT_HOT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) wm8350_charger_handler, 0, "Battery hot", wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_BAT_COLD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) wm8350_charger_handler, 0, "Battery cold", wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) goto free_chg_bat_hot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_BAT_FAIL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) wm8350_charger_handler, 0, "Battery fail", wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) goto free_chg_bat_cold;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_TO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) wm8350_charger_handler, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) "Charger timeout", wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) goto free_chg_bat_fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_END,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) wm8350_charger_handler, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) "Charge end", wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) goto free_chg_to;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_START,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) wm8350_charger_handler, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) "Charge start", wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) goto free_chg_end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_FAST_RDY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) wm8350_charger_handler, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) "Fast charge ready", wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) goto free_chg_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) wm8350_charger_handler, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) "Battery <3.9V", wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) goto free_chg_fast_rdy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) wm8350_charger_handler, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) "Battery <3.1V", wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) goto free_chg_vbatt_lt_3p9;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_2P85,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) wm8350_charger_handler, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) "Battery <2.85V", wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) goto free_chg_vbatt_lt_3p1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) /* and supply change events */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) ret = wm8350_register_irq(wm8350, WM8350_IRQ_EXT_USB_FB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) wm8350_charger_handler, 0, "USB", wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) goto free_chg_vbatt_lt_2p85;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) ret = wm8350_register_irq(wm8350, WM8350_IRQ_EXT_WALL_FB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) wm8350_charger_handler, 0, "Wall", wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) goto free_ext_usb_fb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) ret = wm8350_register_irq(wm8350, WM8350_IRQ_EXT_BAT_FB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) wm8350_charger_handler, 0, "Battery", wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) goto free_ext_wall_fb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) free_ext_wall_fb:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) wm8350_free_irq(wm8350, WM8350_IRQ_EXT_WALL_FB, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) free_ext_usb_fb:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) wm8350_free_irq(wm8350, WM8350_IRQ_EXT_USB_FB, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) free_chg_vbatt_lt_2p85:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_2P85, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) free_chg_vbatt_lt_3p1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P1, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) free_chg_vbatt_lt_3p9:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P9, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) free_chg_fast_rdy:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_FAST_RDY, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) free_chg_start:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_START, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) free_chg_end:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_END, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) free_chg_to:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_TO, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) free_chg_bat_fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_BAT_FAIL, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) free_chg_bat_cold:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_BAT_COLD, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) free_chg_bat_hot:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_BAT_HOT, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) static void free_charger_irq(struct wm8350 *wm8350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_BAT_HOT, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_BAT_COLD, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_BAT_FAIL, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_TO, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_END, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_START, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_FAST_RDY, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P9, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P1, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_2P85, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) wm8350_free_irq(wm8350, WM8350_IRQ_EXT_USB_FB, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) wm8350_free_irq(wm8350, WM8350_IRQ_EXT_WALL_FB, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) wm8350_free_irq(wm8350, WM8350_IRQ_EXT_BAT_FB, wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) static int wm8350_power_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) struct wm8350 *wm8350 = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) struct wm8350_power *power = &wm8350->power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) struct wm8350_charger_policy *policy = power->policy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) power->ac = power_supply_register(&pdev->dev, &wm8350_ac_desc, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) if (IS_ERR(power->ac))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) return PTR_ERR(power->ac);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) power->battery = power_supply_register(&pdev->dev, &wm8350_battery_desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) if (IS_ERR(power->battery)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) ret = PTR_ERR(power->battery);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) goto battery_failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) power->usb = power_supply_register(&pdev->dev, &wm8350_usb_desc, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) if (IS_ERR(power->usb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) ret = PTR_ERR(power->usb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) goto usb_failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) ret = device_create_file(&pdev->dev, &dev_attr_charger_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) dev_warn(wm8350->dev, "failed to add charge sysfs: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) wm8350_init_charger(wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) if (wm8350_charger_config(wm8350, policy) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) wm8350_reg_unlock(wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) wm8350_set_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CHG_ENA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) wm8350_reg_lock(wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) usb_failed:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) power_supply_unregister(power->battery);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) battery_failed:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) power_supply_unregister(power->ac);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) static int wm8350_power_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) struct wm8350 *wm8350 = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) struct wm8350_power *power = &wm8350->power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) free_charger_irq(wm8350);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) device_remove_file(&pdev->dev, &dev_attr_charger_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) power_supply_unregister(power->battery);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) power_supply_unregister(power->ac);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) power_supply_unregister(power->usb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) static struct platform_driver wm8350_power_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) .probe = wm8350_power_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) .remove = wm8350_power_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) .name = "wm8350-power",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) module_platform_driver(wm8350_power_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) MODULE_DESCRIPTION("Power supply driver for WM8350");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) MODULE_ALIAS("platform:wm8350-power");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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