^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) * leds-lm3533.c -- LM3533 LED driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2011-2012 Texas Instruments
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author: Johan Hovold <jhovold@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^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/leds.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/mfd/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/mutex.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/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/mfd/lm3533.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define LM3533_LVCTRLBANK_MIN 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define LM3533_LVCTRLBANK_MAX 5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define LM3533_LVCTRLBANK_COUNT 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define LM3533_RISEFALLTIME_MAX 7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define LM3533_ALS_CHANNEL_LV_MIN 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define LM3533_ALS_CHANNEL_LV_MAX 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define LM3533_REG_CTRLBANK_BCONF_BASE 0x1b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define LM3533_REG_PATTERN_ENABLE 0x28
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define LM3533_REG_PATTERN_LOW_TIME_BASE 0x71
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define LM3533_REG_PATTERN_HIGH_TIME_BASE 0x72
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define LM3533_REG_PATTERN_RISETIME_BASE 0x74
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define LM3533_REG_PATTERN_FALLTIME_BASE 0x75
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define LM3533_REG_PATTERN_STEP 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define LM3533_REG_CTRLBANK_BCONF_MAPPING_MASK 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define LM3533_REG_CTRLBANK_BCONF_ALS_EN_MASK 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define LM3533_REG_CTRLBANK_BCONF_ALS_CHANNEL_MASK 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define LM3533_LED_FLAG_PATTERN_ENABLE 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) struct lm3533_led {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct lm3533 *lm3533;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) struct lm3533_ctrlbank cb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) struct led_classdev cdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) int id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) struct mutex mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) static inline struct lm3533_led *to_lm3533_led(struct led_classdev *cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) return container_of(cdev, struct lm3533_led, cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static inline int lm3533_led_get_ctrlbank_id(struct lm3533_led *led)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) return led->id + 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static inline u8 lm3533_led_get_lv_reg(struct lm3533_led *led, u8 base)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) return base + led->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) static inline u8 lm3533_led_get_pattern(struct lm3533_led *led)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) return led->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) static inline u8 lm3533_led_get_pattern_reg(struct lm3533_led *led,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) u8 base)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) return base + lm3533_led_get_pattern(led) * LM3533_REG_PATTERN_STEP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) static int lm3533_led_pattern_enable(struct lm3533_led *led, int enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) u8 mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) int pattern;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) int state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) dev_dbg(led->cdev.dev, "%s - %d\n", __func__, enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) mutex_lock(&led->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) state = test_bit(LM3533_LED_FLAG_PATTERN_ENABLE, &led->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) if ((enable && state) || (!enable && !state))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) pattern = lm3533_led_get_pattern(led);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) mask = 1 << (2 * pattern);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) if (enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) val = mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) ret = lm3533_update(led->lm3533, LM3533_REG_PATTERN_ENABLE, val, mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) dev_err(led->cdev.dev, "failed to enable pattern %d (%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) pattern, enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) __change_bit(LM3533_LED_FLAG_PATTERN_ENABLE, &led->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) mutex_unlock(&led->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) return ret;
^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 int lm3533_led_set(struct led_classdev *cdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) enum led_brightness value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) struct lm3533_led *led = to_lm3533_led(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) dev_dbg(led->cdev.dev, "%s - %d\n", __func__, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) if (value == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) lm3533_led_pattern_enable(led, 0); /* disable blink */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) return lm3533_ctrlbank_set_brightness(&led->cb, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static enum led_brightness lm3533_led_get(struct led_classdev *cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct lm3533_led *led = to_lm3533_led(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) ret = lm3533_ctrlbank_get_brightness(&led->cb, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) dev_dbg(led->cdev.dev, "%s - %u\n", __func__, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) return val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) /* Pattern generator defines (delays in us). */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #define LM3533_LED_DELAY1_VMIN 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) #define LM3533_LED_DELAY2_VMIN 0x3d
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) #define LM3533_LED_DELAY3_VMIN 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) #define LM3533_LED_DELAY1_VMAX (LM3533_LED_DELAY2_VMIN - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) #define LM3533_LED_DELAY2_VMAX (LM3533_LED_DELAY3_VMIN - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) #define LM3533_LED_DELAY3_VMAX 0xff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) #define LM3533_LED_DELAY1_TMIN 16384U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) #define LM3533_LED_DELAY2_TMIN 1130496U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) #define LM3533_LED_DELAY3_TMIN 10305536U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) #define LM3533_LED_DELAY1_TMAX 999424U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) #define LM3533_LED_DELAY2_TMAX 9781248U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) #define LM3533_LED_DELAY3_TMAX 76890112U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) /* t_step = (t_max - t_min) / (v_max - v_min) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) #define LM3533_LED_DELAY1_TSTEP 16384
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) #define LM3533_LED_DELAY2_TSTEP 131072
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) #define LM3533_LED_DELAY3_TSTEP 524288
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) /* Delay limits for hardware accelerated blinking (in ms). */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) #define LM3533_LED_DELAY_ON_MAX \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) ((LM3533_LED_DELAY2_TMAX + LM3533_LED_DELAY2_TSTEP / 2) / 1000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) #define LM3533_LED_DELAY_OFF_MAX \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) ((LM3533_LED_DELAY3_TMAX + LM3533_LED_DELAY3_TSTEP / 2) / 1000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) * Returns linear map of *t from [t_min,t_max] to [v_min,v_max] with a step
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) * size of t_step, where
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) * t_step = (t_max - t_min) / (v_max - v_min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) * and updates *t to reflect the mapped value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) static u8 time_to_val(unsigned *t, unsigned t_min, unsigned t_step,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) u8 v_min, u8 v_max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) unsigned val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) val = (*t + t_step / 2 - t_min) / t_step + v_min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) *t = t_step * (val - v_min) + t_min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) return (u8)val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) * Returns time code corresponding to *delay (in ms) and updates *delay to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) * reflect actual hardware delay.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) * Hardware supports 256 discrete delay times, divided into three groups with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) * the following ranges and step-sizes:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) * [ 16, 999] [0x00, 0x3e] step 16 ms
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) * [ 1130, 9781] [0x3d, 0x7f] step 131 ms
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) * [10306, 76890] [0x80, 0xff] step 524 ms
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) * Note that delay group 3 is only available for delay_off.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) static u8 lm3533_led_get_hw_delay(unsigned *delay)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) unsigned t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) t = *delay * 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) if (t >= (LM3533_LED_DELAY2_TMAX + LM3533_LED_DELAY3_TMIN) / 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) t = clamp(t, LM3533_LED_DELAY3_TMIN, LM3533_LED_DELAY3_TMAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) val = time_to_val(&t, LM3533_LED_DELAY3_TMIN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) LM3533_LED_DELAY3_TSTEP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) LM3533_LED_DELAY3_VMIN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) LM3533_LED_DELAY3_VMAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) } else if (t >= (LM3533_LED_DELAY1_TMAX + LM3533_LED_DELAY2_TMIN) / 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) t = clamp(t, LM3533_LED_DELAY2_TMIN, LM3533_LED_DELAY2_TMAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) val = time_to_val(&t, LM3533_LED_DELAY2_TMIN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) LM3533_LED_DELAY2_TSTEP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) LM3533_LED_DELAY2_VMIN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) LM3533_LED_DELAY2_VMAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) t = clamp(t, LM3533_LED_DELAY1_TMIN, LM3533_LED_DELAY1_TMAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) val = time_to_val(&t, LM3533_LED_DELAY1_TMIN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) LM3533_LED_DELAY1_TSTEP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) LM3533_LED_DELAY1_VMIN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) LM3533_LED_DELAY1_VMAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) *delay = (t + 500) / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) return val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) * Set delay register base to *delay (in ms) and update *delay to reflect
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) * actual hardware delay used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) static u8 lm3533_led_delay_set(struct lm3533_led *led, u8 base,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) unsigned long *delay)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) unsigned t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) u8 reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) t = (unsigned)*delay;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) /* Delay group 3 is only available for low time (delay off). */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) if (base != LM3533_REG_PATTERN_LOW_TIME_BASE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) t = min(t, LM3533_LED_DELAY2_TMAX / 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) val = lm3533_led_get_hw_delay(&t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) dev_dbg(led->cdev.dev, "%s - %lu: %u (0x%02x)\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) *delay, t, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) reg = lm3533_led_get_pattern_reg(led, base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) ret = lm3533_write(led->lm3533, reg, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) dev_err(led->cdev.dev, "failed to set delay (%02x)\n", reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) *delay = t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) static int lm3533_led_delay_on_set(struct lm3533_led *led, unsigned long *t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) return lm3533_led_delay_set(led, LM3533_REG_PATTERN_HIGH_TIME_BASE, t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) static int lm3533_led_delay_off_set(struct lm3533_led *led, unsigned long *t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) return lm3533_led_delay_set(led, LM3533_REG_PATTERN_LOW_TIME_BASE, t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) static int lm3533_led_blink_set(struct led_classdev *cdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) unsigned long *delay_on,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) unsigned long *delay_off)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) struct lm3533_led *led = to_lm3533_led(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) dev_dbg(led->cdev.dev, "%s - on = %lu, off = %lu\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) *delay_on, *delay_off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) if (*delay_on > LM3533_LED_DELAY_ON_MAX ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) *delay_off > LM3533_LED_DELAY_OFF_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) if (*delay_on == 0 && *delay_off == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) *delay_on = 500;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) *delay_off = 500;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) ret = lm3533_led_delay_on_set(led, delay_on);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) ret = lm3533_led_delay_off_set(led, delay_off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) return lm3533_led_pattern_enable(led, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) static ssize_t show_id(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) struct led_classdev *led_cdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) struct lm3533_led *led = to_lm3533_led(led_cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) return scnprintf(buf, PAGE_SIZE, "%d\n", led->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) * Pattern generator rise/fall times:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) * 0 - 2048 us (default)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) * 1 - 262 ms
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) * 2 - 524 ms
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) * 3 - 1.049 s
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) * 4 - 2.097 s
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) * 5 - 4.194 s
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) * 6 - 8.389 s
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) * 7 - 16.78 s
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) static ssize_t show_risefalltime(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) char *buf, u8 base)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) struct led_classdev *led_cdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) struct lm3533_led *led = to_lm3533_led(led_cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) ssize_t ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) u8 reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) reg = lm3533_led_get_pattern_reg(led, base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) ret = lm3533_read(led->lm3533, reg, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) return scnprintf(buf, PAGE_SIZE, "%x\n", val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) static ssize_t show_risetime(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) return show_risefalltime(dev, attr, buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) LM3533_REG_PATTERN_RISETIME_BASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) static ssize_t show_falltime(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) return show_risefalltime(dev, attr, buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) LM3533_REG_PATTERN_FALLTIME_BASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) static ssize_t store_risefalltime(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) const char *buf, size_t len, u8 base)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) struct led_classdev *led_cdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) struct lm3533_led *led = to_lm3533_led(led_cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) u8 reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) if (kstrtou8(buf, 0, &val) || val > LM3533_RISEFALLTIME_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) reg = lm3533_led_get_pattern_reg(led, base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) ret = lm3533_write(led->lm3533, reg, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) return len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) static ssize_t store_risetime(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) const char *buf, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) return store_risefalltime(dev, attr, buf, len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) LM3533_REG_PATTERN_RISETIME_BASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) static ssize_t store_falltime(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) const char *buf, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) return store_risefalltime(dev, attr, buf, len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) LM3533_REG_PATTERN_FALLTIME_BASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) static ssize_t show_als_channel(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) struct led_classdev *led_cdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) struct lm3533_led *led = to_lm3533_led(led_cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) unsigned channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) u8 reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) ret = lm3533_read(led->lm3533, reg, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) channel = (val & LM3533_REG_CTRLBANK_BCONF_ALS_CHANNEL_MASK) + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) return scnprintf(buf, PAGE_SIZE, "%u\n", channel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) static ssize_t store_als_channel(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) const char *buf, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) struct led_classdev *led_cdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) struct lm3533_led *led = to_lm3533_led(led_cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) unsigned channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) u8 reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) u8 mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) if (kstrtouint(buf, 0, &channel))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) if (channel < LM3533_ALS_CHANNEL_LV_MIN ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) channel > LM3533_ALS_CHANNEL_LV_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) mask = LM3533_REG_CTRLBANK_BCONF_ALS_CHANNEL_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) val = channel - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) ret = lm3533_update(led->lm3533, reg, val, mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) return len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) static ssize_t show_als_en(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) struct led_classdev *led_cdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) struct lm3533_led *led = to_lm3533_led(led_cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) bool enable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) u8 reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) ret = lm3533_read(led->lm3533, reg, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) enable = val & LM3533_REG_CTRLBANK_BCONF_ALS_EN_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) return scnprintf(buf, PAGE_SIZE, "%d\n", enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) static ssize_t store_als_en(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) const char *buf, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) struct led_classdev *led_cdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) struct lm3533_led *led = to_lm3533_led(led_cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) unsigned enable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) u8 reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) u8 mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) if (kstrtouint(buf, 0, &enable))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) mask = LM3533_REG_CTRLBANK_BCONF_ALS_EN_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) if (enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) val = mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) ret = lm3533_update(led->lm3533, reg, val, mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) return len;
^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) static ssize_t show_linear(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) struct led_classdev *led_cdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) struct lm3533_led *led = to_lm3533_led(led_cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) u8 reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) int linear;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) ret = lm3533_read(led->lm3533, reg, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) if (val & LM3533_REG_CTRLBANK_BCONF_MAPPING_MASK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) linear = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) linear = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) return scnprintf(buf, PAGE_SIZE, "%x\n", linear);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) static ssize_t store_linear(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) const char *buf, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) struct led_classdev *led_cdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) struct lm3533_led *led = to_lm3533_led(led_cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) unsigned long linear;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) u8 reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) u8 mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) if (kstrtoul(buf, 0, &linear))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) mask = LM3533_REG_CTRLBANK_BCONF_MAPPING_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) if (linear)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) val = mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) ret = lm3533_update(led->lm3533, reg, val, mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) return len;
^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) static ssize_t show_pwm(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) struct led_classdev *led_cdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) struct lm3533_led *led = to_lm3533_led(led_cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) ret = lm3533_ctrlbank_get_pwm(&led->cb, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) return scnprintf(buf, PAGE_SIZE, "%u\n", val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) static ssize_t store_pwm(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) const char *buf, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) struct led_classdev *led_cdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) struct lm3533_led *led = to_lm3533_led(led_cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) if (kstrtou8(buf, 0, &val))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) ret = lm3533_ctrlbank_set_pwm(&led->cb, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) return len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) static LM3533_ATTR_RW(als_channel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) static LM3533_ATTR_RW(als_en);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) static LM3533_ATTR_RW(falltime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) static LM3533_ATTR_RO(id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) static LM3533_ATTR_RW(linear);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) static LM3533_ATTR_RW(pwm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) static LM3533_ATTR_RW(risetime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) static struct attribute *lm3533_led_attributes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) &dev_attr_als_channel.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) &dev_attr_als_en.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) &dev_attr_falltime.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) &dev_attr_id.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) &dev_attr_linear.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) &dev_attr_pwm.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) &dev_attr_risetime.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) static umode_t lm3533_led_attr_is_visible(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) struct attribute *attr, int n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) struct device *dev = container_of(kobj, struct device, kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) struct led_classdev *led_cdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) struct lm3533_led *led = to_lm3533_led(led_cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) umode_t mode = attr->mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) if (attr == &dev_attr_als_channel.attr ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) attr == &dev_attr_als_en.attr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) if (!led->lm3533->have_als)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) mode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) return mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) static const struct attribute_group lm3533_led_attribute_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) .is_visible = lm3533_led_attr_is_visible,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) .attrs = lm3533_led_attributes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) static const struct attribute_group *lm3533_led_attribute_groups[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) &lm3533_led_attribute_group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) static int lm3533_led_setup(struct lm3533_led *led,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) struct lm3533_led_platform_data *pdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) ret = lm3533_ctrlbank_set_max_current(&led->cb, pdata->max_current);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) return lm3533_ctrlbank_set_pwm(&led->cb, pdata->pwm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) static int lm3533_led_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) struct lm3533 *lm3533;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) struct lm3533_led_platform_data *pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) struct lm3533_led *led;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) dev_dbg(&pdev->dev, "%s\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) lm3533 = dev_get_drvdata(pdev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) if (!lm3533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) pdata = dev_get_platdata(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) if (!pdata) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) dev_err(&pdev->dev, "no platform data\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) return -EINVAL;
^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) if (pdev->id < 0 || pdev->id >= LM3533_LVCTRLBANK_COUNT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) dev_err(&pdev->dev, "illegal LED id %d\n", pdev->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) led = devm_kzalloc(&pdev->dev, sizeof(*led), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) if (!led)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) led->lm3533 = lm3533;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) led->cdev.name = pdata->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) led->cdev.default_trigger = pdata->default_trigger;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) led->cdev.brightness_set_blocking = lm3533_led_set;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) led->cdev.brightness_get = lm3533_led_get;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) led->cdev.blink_set = lm3533_led_blink_set;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) led->cdev.brightness = LED_OFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) led->cdev.groups = lm3533_led_attribute_groups,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) led->id = pdev->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) mutex_init(&led->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) /* The class framework makes a callback to get brightness during
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) * registration so use parent device (for error reporting) until
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) * registered.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) led->cb.lm3533 = lm3533;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) led->cb.id = lm3533_led_get_ctrlbank_id(led);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) led->cb.dev = lm3533->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) platform_set_drvdata(pdev, led);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) ret = led_classdev_register(pdev->dev.parent, &led->cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) dev_err(&pdev->dev, "failed to register LED %d\n", pdev->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) led->cb.dev = led->cdev.dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) ret = lm3533_led_setup(led, pdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) goto err_deregister;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) ret = lm3533_ctrlbank_enable(&led->cb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) goto err_deregister;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) err_deregister:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) led_classdev_unregister(&led->cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) static int lm3533_led_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) struct lm3533_led *led = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) dev_dbg(&pdev->dev, "%s\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) lm3533_ctrlbank_disable(&led->cb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) led_classdev_unregister(&led->cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) static void lm3533_led_shutdown(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) struct lm3533_led *led = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) dev_dbg(&pdev->dev, "%s\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) lm3533_ctrlbank_disable(&led->cb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) lm3533_led_set(&led->cdev, LED_OFF); /* disable blink */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) static struct platform_driver lm3533_led_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) .name = "lm3533-leds",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) .probe = lm3533_led_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) .remove = lm3533_led_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) .shutdown = lm3533_led_shutdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) module_platform_driver(lm3533_led_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) MODULE_AUTHOR("Johan Hovold <jhovold@gmail.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) MODULE_DESCRIPTION("LM3533 LED driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) MODULE_ALIAS("platform:lm3533-leds");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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