[PATCH v1 3/4] leds: lm3533: Remove the driver
From: Andy Shevchenko
Date: Fri May 31 2024 - 13:09:22 EST
The driver has no in kernel users and requires a board file
to be instantiated. Remove basically a dead code.
If ever needed, it can be reinstantiated and converted to one
that uses firmware node interfaces.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/leds/Kconfig | 13 -
drivers/leds/Makefile | 1 -
drivers/leds/leds-lm3533.c | 755 -------------------------------------
3 files changed, 769 deletions(-)
delete mode 100644 drivers/leds/leds-lm3533.c
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 05e6af88b88c..4cdc3a687421 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -229,19 +229,6 @@ config LEDS_LM3532
controlled manually or using PWM input or using ambient
light automatically.
-config LEDS_LM3533
- tristate "LED support for LM3533"
- depends on LEDS_CLASS
- depends on MFD_LM3533
- help
- This option enables support for the LEDs on National Semiconductor /
- TI LM3533 Lighting Power chips.
-
- The LEDs can be controlled directly, through PWM input, or by the
- ambient-light-sensor interface. The chip supports
- hardware-accelerated blinking with maximum on and off periods of 9.8
- and 77 seconds respectively.
-
config LEDS_LM3642
tristate "LED support for LM3642 Chip"
depends on LEDS_CLASS && I2C
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index effdfc6f1e95..6bc8c412d3ac 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -38,7 +38,6 @@ obj-$(CONFIG_LEDS_IS31FL319X) += leds-is31fl319x.o
obj-$(CONFIG_LEDS_IS31FL32XX) += leds-is31fl32xx.o
obj-$(CONFIG_LEDS_LM3530) += leds-lm3530.o
obj-$(CONFIG_LEDS_LM3532) += leds-lm3532.o
-obj-$(CONFIG_LEDS_LM3533) += leds-lm3533.o
obj-$(CONFIG_LEDS_LM355x) += leds-lm355x.o
obj-$(CONFIG_LEDS_LM36274) += leds-lm36274.o
obj-$(CONFIG_LEDS_LM3642) += leds-lm3642.o
diff --git a/drivers/leds/leds-lm3533.c b/drivers/leds/leds-lm3533.c
deleted file mode 100644
index a3d33165d262..000000000000
--- a/drivers/leds/leds-lm3533.c
+++ /dev/null
@@ -1,755 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * leds-lm3533.c -- LM3533 LED driver
- *
- * Copyright (C) 2011-2012 Texas Instruments
- *
- * Author: Johan Hovold <jhovold@xxxxxxxxx>
- */
-
-#include <linux/module.h>
-#include <linux/leds.h>
-#include <linux/mfd/core.h>
-#include <linux/mutex.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-
-#include <linux/mfd/lm3533.h>
-
-
-#define LM3533_LVCTRLBANK_MIN 2
-#define LM3533_LVCTRLBANK_MAX 5
-#define LM3533_LVCTRLBANK_COUNT 4
-#define LM3533_RISEFALLTIME_MAX 7
-#define LM3533_ALS_CHANNEL_LV_MIN 1
-#define LM3533_ALS_CHANNEL_LV_MAX 2
-
-#define LM3533_REG_CTRLBANK_BCONF_BASE 0x1b
-#define LM3533_REG_PATTERN_ENABLE 0x28
-#define LM3533_REG_PATTERN_LOW_TIME_BASE 0x71
-#define LM3533_REG_PATTERN_HIGH_TIME_BASE 0x72
-#define LM3533_REG_PATTERN_RISETIME_BASE 0x74
-#define LM3533_REG_PATTERN_FALLTIME_BASE 0x75
-
-#define LM3533_REG_PATTERN_STEP 0x10
-
-#define LM3533_REG_CTRLBANK_BCONF_MAPPING_MASK 0x04
-#define LM3533_REG_CTRLBANK_BCONF_ALS_EN_MASK 0x02
-#define LM3533_REG_CTRLBANK_BCONF_ALS_CHANNEL_MASK 0x01
-
-#define LM3533_LED_FLAG_PATTERN_ENABLE 1
-
-
-struct lm3533_led {
- struct lm3533 *lm3533;
- struct lm3533_ctrlbank cb;
- struct led_classdev cdev;
- int id;
-
- struct mutex mutex;
- unsigned long flags;
-};
-
-
-static inline struct lm3533_led *to_lm3533_led(struct led_classdev *cdev)
-{
- return container_of(cdev, struct lm3533_led, cdev);
-}
-
-static inline int lm3533_led_get_ctrlbank_id(struct lm3533_led *led)
-{
- return led->id + 2;
-}
-
-static inline u8 lm3533_led_get_lv_reg(struct lm3533_led *led, u8 base)
-{
- return base + led->id;
-}
-
-static inline u8 lm3533_led_get_pattern(struct lm3533_led *led)
-{
- return led->id;
-}
-
-static inline u8 lm3533_led_get_pattern_reg(struct lm3533_led *led,
- u8 base)
-{
- return base + lm3533_led_get_pattern(led) * LM3533_REG_PATTERN_STEP;
-}
-
-static int lm3533_led_pattern_enable(struct lm3533_led *led, int enable)
-{
- u8 mask;
- u8 val;
- int pattern;
- int state;
- int ret = 0;
-
- dev_dbg(led->cdev.dev, "%s - %d\n", __func__, enable);
-
- mutex_lock(&led->mutex);
-
- state = test_bit(LM3533_LED_FLAG_PATTERN_ENABLE, &led->flags);
- if ((enable && state) || (!enable && !state))
- goto out;
-
- pattern = lm3533_led_get_pattern(led);
- mask = 1 << (2 * pattern);
-
- if (enable)
- val = mask;
- else
- val = 0;
-
- ret = lm3533_update(led->lm3533, LM3533_REG_PATTERN_ENABLE, val, mask);
- if (ret) {
- dev_err(led->cdev.dev, "failed to enable pattern %d (%d)\n",
- pattern, enable);
- goto out;
- }
-
- __change_bit(LM3533_LED_FLAG_PATTERN_ENABLE, &led->flags);
-out:
- mutex_unlock(&led->mutex);
-
- return ret;
-}
-
-static int lm3533_led_set(struct led_classdev *cdev,
- enum led_brightness value)
-{
- struct lm3533_led *led = to_lm3533_led(cdev);
-
- dev_dbg(led->cdev.dev, "%s - %d\n", __func__, value);
-
- if (value == 0)
- lm3533_led_pattern_enable(led, 0); /* disable blink */
-
- return lm3533_ctrlbank_set_brightness(&led->cb, value);
-}
-
-static enum led_brightness lm3533_led_get(struct led_classdev *cdev)
-{
- struct lm3533_led *led = to_lm3533_led(cdev);
- u8 val;
- int ret;
-
- ret = lm3533_ctrlbank_get_brightness(&led->cb, &val);
- if (ret)
- return ret;
-
- dev_dbg(led->cdev.dev, "%s - %u\n", __func__, val);
-
- return val;
-}
-
-/* Pattern generator defines (delays in us). */
-#define LM3533_LED_DELAY1_VMIN 0x00
-#define LM3533_LED_DELAY2_VMIN 0x3d
-#define LM3533_LED_DELAY3_VMIN 0x80
-
-#define LM3533_LED_DELAY1_VMAX (LM3533_LED_DELAY2_VMIN - 1)
-#define LM3533_LED_DELAY2_VMAX (LM3533_LED_DELAY3_VMIN - 1)
-#define LM3533_LED_DELAY3_VMAX 0xff
-
-#define LM3533_LED_DELAY1_TMIN 16384U
-#define LM3533_LED_DELAY2_TMIN 1130496U
-#define LM3533_LED_DELAY3_TMIN 10305536U
-
-#define LM3533_LED_DELAY1_TMAX 999424U
-#define LM3533_LED_DELAY2_TMAX 9781248U
-#define LM3533_LED_DELAY3_TMAX 76890112U
-
-/* t_step = (t_max - t_min) / (v_max - v_min) */
-#define LM3533_LED_DELAY1_TSTEP 16384
-#define LM3533_LED_DELAY2_TSTEP 131072
-#define LM3533_LED_DELAY3_TSTEP 524288
-
-/* Delay limits for hardware accelerated blinking (in ms). */
-#define LM3533_LED_DELAY_ON_MAX \
- ((LM3533_LED_DELAY2_TMAX + LM3533_LED_DELAY2_TSTEP / 2) / 1000)
-#define LM3533_LED_DELAY_OFF_MAX \
- ((LM3533_LED_DELAY3_TMAX + LM3533_LED_DELAY3_TSTEP / 2) / 1000)
-
-/*
- * Returns linear map of *t from [t_min,t_max] to [v_min,v_max] with a step
- * size of t_step, where
- *
- * t_step = (t_max - t_min) / (v_max - v_min)
- *
- * and updates *t to reflect the mapped value.
- */
-static u8 time_to_val(unsigned *t, unsigned t_min, unsigned t_step,
- u8 v_min, u8 v_max)
-{
- unsigned val;
-
- val = (*t + t_step / 2 - t_min) / t_step + v_min;
-
- *t = t_step * (val - v_min) + t_min;
-
- return (u8)val;
-}
-
-/*
- * Returns time code corresponding to *delay (in ms) and updates *delay to
- * reflect actual hardware delay.
- *
- * Hardware supports 256 discrete delay times, divided into three groups with
- * the following ranges and step-sizes:
- *
- * [ 16, 999] [0x00, 0x3e] step 16 ms
- * [ 1130, 9781] [0x3d, 0x7f] step 131 ms
- * [10306, 76890] [0x80, 0xff] step 524 ms
- *
- * Note that delay group 3 is only available for delay_off.
- */
-static u8 lm3533_led_get_hw_delay(unsigned *delay)
-{
- unsigned t;
- u8 val;
-
- t = *delay * 1000;
-
- if (t >= (LM3533_LED_DELAY2_TMAX + LM3533_LED_DELAY3_TMIN) / 2) {
- t = clamp(t, LM3533_LED_DELAY3_TMIN, LM3533_LED_DELAY3_TMAX);
- val = time_to_val(&t, LM3533_LED_DELAY3_TMIN,
- LM3533_LED_DELAY3_TSTEP,
- LM3533_LED_DELAY3_VMIN,
- LM3533_LED_DELAY3_VMAX);
- } else if (t >= (LM3533_LED_DELAY1_TMAX + LM3533_LED_DELAY2_TMIN) / 2) {
- t = clamp(t, LM3533_LED_DELAY2_TMIN, LM3533_LED_DELAY2_TMAX);
- val = time_to_val(&t, LM3533_LED_DELAY2_TMIN,
- LM3533_LED_DELAY2_TSTEP,
- LM3533_LED_DELAY2_VMIN,
- LM3533_LED_DELAY2_VMAX);
- } else {
- t = clamp(t, LM3533_LED_DELAY1_TMIN, LM3533_LED_DELAY1_TMAX);
- val = time_to_val(&t, LM3533_LED_DELAY1_TMIN,
- LM3533_LED_DELAY1_TSTEP,
- LM3533_LED_DELAY1_VMIN,
- LM3533_LED_DELAY1_VMAX);
- }
-
- *delay = (t + 500) / 1000;
-
- return val;
-}
-
-/*
- * Set delay register base to *delay (in ms) and update *delay to reflect
- * actual hardware delay used.
- */
-static u8 lm3533_led_delay_set(struct lm3533_led *led, u8 base,
- unsigned long *delay)
-{
- unsigned t;
- u8 val;
- u8 reg;
- int ret;
-
- t = (unsigned)*delay;
-
- /* Delay group 3 is only available for low time (delay off). */
- if (base != LM3533_REG_PATTERN_LOW_TIME_BASE)
- t = min(t, LM3533_LED_DELAY2_TMAX / 1000);
-
- val = lm3533_led_get_hw_delay(&t);
-
- dev_dbg(led->cdev.dev, "%s - %lu: %u (0x%02x)\n", __func__,
- *delay, t, val);
- reg = lm3533_led_get_pattern_reg(led, base);
- ret = lm3533_write(led->lm3533, reg, val);
- if (ret)
- dev_err(led->cdev.dev, "failed to set delay (%02x)\n", reg);
-
- *delay = t;
-
- return ret;
-}
-
-static int lm3533_led_delay_on_set(struct lm3533_led *led, unsigned long *t)
-{
- return lm3533_led_delay_set(led, LM3533_REG_PATTERN_HIGH_TIME_BASE, t);
-}
-
-static int lm3533_led_delay_off_set(struct lm3533_led *led, unsigned long *t)
-{
- return lm3533_led_delay_set(led, LM3533_REG_PATTERN_LOW_TIME_BASE, t);
-}
-
-static int lm3533_led_blink_set(struct led_classdev *cdev,
- unsigned long *delay_on,
- unsigned long *delay_off)
-{
- struct lm3533_led *led = to_lm3533_led(cdev);
- int ret;
-
- dev_dbg(led->cdev.dev, "%s - on = %lu, off = %lu\n", __func__,
- *delay_on, *delay_off);
-
- if (*delay_on > LM3533_LED_DELAY_ON_MAX ||
- *delay_off > LM3533_LED_DELAY_OFF_MAX)
- return -EINVAL;
-
- if (*delay_on == 0 && *delay_off == 0) {
- *delay_on = 500;
- *delay_off = 500;
- }
-
- ret = lm3533_led_delay_on_set(led, delay_on);
- if (ret)
- return ret;
-
- ret = lm3533_led_delay_off_set(led, delay_off);
- if (ret)
- return ret;
-
- return lm3533_led_pattern_enable(led, 1);
-}
-
-static ssize_t show_id(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct lm3533_led *led = to_lm3533_led(led_cdev);
-
- return sysfs_emit(buf, "%d\n", led->id);
-}
-
-/*
- * Pattern generator rise/fall times:
- *
- * 0 - 2048 us (default)
- * 1 - 262 ms
- * 2 - 524 ms
- * 3 - 1.049 s
- * 4 - 2.097 s
- * 5 - 4.194 s
- * 6 - 8.389 s
- * 7 - 16.78 s
- */
-static ssize_t show_risefalltime(struct device *dev,
- struct device_attribute *attr,
- char *buf, u8 base)
-{
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct lm3533_led *led = to_lm3533_led(led_cdev);
- ssize_t ret;
- u8 reg;
- u8 val;
-
- reg = lm3533_led_get_pattern_reg(led, base);
- ret = lm3533_read(led->lm3533, reg, &val);
- if (ret)
- return ret;
-
- return sysfs_emit(buf, "%x\n", val);
-}
-
-static ssize_t show_risetime(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return show_risefalltime(dev, attr, buf,
- LM3533_REG_PATTERN_RISETIME_BASE);
-}
-
-static ssize_t show_falltime(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return show_risefalltime(dev, attr, buf,
- LM3533_REG_PATTERN_FALLTIME_BASE);
-}
-
-static ssize_t store_risefalltime(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len, u8 base)
-{
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct lm3533_led *led = to_lm3533_led(led_cdev);
- u8 val;
- u8 reg;
- int ret;
-
- if (kstrtou8(buf, 0, &val) || val > LM3533_RISEFALLTIME_MAX)
- return -EINVAL;
-
- reg = lm3533_led_get_pattern_reg(led, base);
- ret = lm3533_write(led->lm3533, reg, val);
- if (ret)
- return ret;
-
- return len;
-}
-
-static ssize_t store_risetime(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- return store_risefalltime(dev, attr, buf, len,
- LM3533_REG_PATTERN_RISETIME_BASE);
-}
-
-static ssize_t store_falltime(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- return store_risefalltime(dev, attr, buf, len,
- LM3533_REG_PATTERN_FALLTIME_BASE);
-}
-
-static ssize_t show_als_channel(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct lm3533_led *led = to_lm3533_led(led_cdev);
- unsigned channel;
- u8 reg;
- u8 val;
- int ret;
-
- reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
- ret = lm3533_read(led->lm3533, reg, &val);
- if (ret)
- return ret;
-
- channel = (val & LM3533_REG_CTRLBANK_BCONF_ALS_CHANNEL_MASK) + 1;
-
- return sysfs_emit(buf, "%u\n", channel);
-}
-
-static ssize_t store_als_channel(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct lm3533_led *led = to_lm3533_led(led_cdev);
- unsigned channel;
- u8 reg;
- u8 val;
- u8 mask;
- int ret;
-
- if (kstrtouint(buf, 0, &channel))
- return -EINVAL;
-
- if (channel < LM3533_ALS_CHANNEL_LV_MIN ||
- channel > LM3533_ALS_CHANNEL_LV_MAX)
- return -EINVAL;
-
- reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
- mask = LM3533_REG_CTRLBANK_BCONF_ALS_CHANNEL_MASK;
- val = channel - 1;
-
- ret = lm3533_update(led->lm3533, reg, val, mask);
- if (ret)
- return ret;
-
- return len;
-}
-
-static ssize_t show_als_en(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct lm3533_led *led = to_lm3533_led(led_cdev);
- bool enable;
- u8 reg;
- u8 val;
- int ret;
-
- reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
- ret = lm3533_read(led->lm3533, reg, &val);
- if (ret)
- return ret;
-
- enable = val & LM3533_REG_CTRLBANK_BCONF_ALS_EN_MASK;
-
- return sysfs_emit(buf, "%d\n", enable);
-}
-
-static ssize_t store_als_en(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct lm3533_led *led = to_lm3533_led(led_cdev);
- unsigned enable;
- u8 reg;
- u8 mask;
- u8 val;
- int ret;
-
- if (kstrtouint(buf, 0, &enable))
- return -EINVAL;
-
- reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
- mask = LM3533_REG_CTRLBANK_BCONF_ALS_EN_MASK;
-
- if (enable)
- val = mask;
- else
- val = 0;
-
- ret = lm3533_update(led->lm3533, reg, val, mask);
- if (ret)
- return ret;
-
- return len;
-}
-
-static ssize_t show_linear(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct lm3533_led *led = to_lm3533_led(led_cdev);
- u8 reg;
- u8 val;
- int linear;
- int ret;
-
- reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
- ret = lm3533_read(led->lm3533, reg, &val);
- if (ret)
- return ret;
-
- if (val & LM3533_REG_CTRLBANK_BCONF_MAPPING_MASK)
- linear = 1;
- else
- linear = 0;
-
- return sysfs_emit(buf, "%x\n", linear);
-}
-
-static ssize_t store_linear(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct lm3533_led *led = to_lm3533_led(led_cdev);
- unsigned long linear;
- u8 reg;
- u8 mask;
- u8 val;
- int ret;
-
- if (kstrtoul(buf, 0, &linear))
- return -EINVAL;
-
- reg = lm3533_led_get_lv_reg(led, LM3533_REG_CTRLBANK_BCONF_BASE);
- mask = LM3533_REG_CTRLBANK_BCONF_MAPPING_MASK;
-
- if (linear)
- val = mask;
- else
- val = 0;
-
- ret = lm3533_update(led->lm3533, reg, val, mask);
- if (ret)
- return ret;
-
- return len;
-}
-
-static ssize_t show_pwm(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct lm3533_led *led = to_lm3533_led(led_cdev);
- u8 val;
- int ret;
-
- ret = lm3533_ctrlbank_get_pwm(&led->cb, &val);
- if (ret)
- return ret;
-
- return sysfs_emit(buf, "%u\n", val);
-}
-
-static ssize_t store_pwm(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct lm3533_led *led = to_lm3533_led(led_cdev);
- u8 val;
- int ret;
-
- if (kstrtou8(buf, 0, &val))
- return -EINVAL;
-
- ret = lm3533_ctrlbank_set_pwm(&led->cb, val);
- if (ret)
- return ret;
-
- return len;
-}
-
-static LM3533_ATTR_RW(als_channel);
-static LM3533_ATTR_RW(als_en);
-static LM3533_ATTR_RW(falltime);
-static LM3533_ATTR_RO(id);
-static LM3533_ATTR_RW(linear);
-static LM3533_ATTR_RW(pwm);
-static LM3533_ATTR_RW(risetime);
-
-static struct attribute *lm3533_led_attributes[] = {
- &dev_attr_als_channel.attr,
- &dev_attr_als_en.attr,
- &dev_attr_falltime.attr,
- &dev_attr_id.attr,
- &dev_attr_linear.attr,
- &dev_attr_pwm.attr,
- &dev_attr_risetime.attr,
- NULL,
-};
-
-static umode_t lm3533_led_attr_is_visible(struct kobject *kobj,
- struct attribute *attr, int n)
-{
- struct device *dev = kobj_to_dev(kobj);
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct lm3533_led *led = to_lm3533_led(led_cdev);
- umode_t mode = attr->mode;
-
- if (attr == &dev_attr_als_channel.attr ||
- attr == &dev_attr_als_en.attr) {
- if (!led->lm3533->have_als)
- mode = 0;
- }
-
- return mode;
-};
-
-static const struct attribute_group lm3533_led_attribute_group = {
- .is_visible = lm3533_led_attr_is_visible,
- .attrs = lm3533_led_attributes
-};
-
-static const struct attribute_group *lm3533_led_attribute_groups[] = {
- &lm3533_led_attribute_group,
- NULL
-};
-
-static int lm3533_led_setup(struct lm3533_led *led,
- struct lm3533_led_platform_data *pdata)
-{
- int ret;
-
- ret = lm3533_ctrlbank_set_max_current(&led->cb, pdata->max_current);
- if (ret)
- return ret;
-
- return lm3533_ctrlbank_set_pwm(&led->cb, pdata->pwm);
-}
-
-static int lm3533_led_probe(struct platform_device *pdev)
-{
- struct lm3533 *lm3533;
- struct lm3533_led_platform_data *pdata;
- struct lm3533_led *led;
- int ret;
-
- dev_dbg(&pdev->dev, "%s\n", __func__);
-
- lm3533 = dev_get_drvdata(pdev->dev.parent);
- if (!lm3533)
- return -EINVAL;
-
- pdata = dev_get_platdata(&pdev->dev);
- if (!pdata) {
- dev_err(&pdev->dev, "no platform data\n");
- return -EINVAL;
- }
-
- if (pdev->id < 0 || pdev->id >= LM3533_LVCTRLBANK_COUNT) {
- dev_err(&pdev->dev, "illegal LED id %d\n", pdev->id);
- return -EINVAL;
- }
-
- led = devm_kzalloc(&pdev->dev, sizeof(*led), GFP_KERNEL);
- if (!led)
- return -ENOMEM;
-
- led->lm3533 = lm3533;
- led->cdev.name = pdata->name;
- led->cdev.default_trigger = pdata->default_trigger;
- led->cdev.brightness_set_blocking = lm3533_led_set;
- led->cdev.brightness_get = lm3533_led_get;
- led->cdev.blink_set = lm3533_led_blink_set;
- led->cdev.brightness = LED_OFF;
- led->cdev.groups = lm3533_led_attribute_groups;
- led->id = pdev->id;
-
- mutex_init(&led->mutex);
-
- /* The class framework makes a callback to get brightness during
- * registration so use parent device (for error reporting) until
- * registered.
- */
- led->cb.lm3533 = lm3533;
- led->cb.id = lm3533_led_get_ctrlbank_id(led);
- led->cb.dev = lm3533->dev;
-
- platform_set_drvdata(pdev, led);
-
- ret = led_classdev_register(pdev->dev.parent, &led->cdev);
- if (ret) {
- dev_err(&pdev->dev, "failed to register LED %d\n", pdev->id);
- return ret;
- }
-
- led->cb.dev = led->cdev.dev;
-
- ret = lm3533_led_setup(led, pdata);
- if (ret)
- goto err_deregister;
-
- ret = lm3533_ctrlbank_enable(&led->cb);
- if (ret)
- goto err_deregister;
-
- return 0;
-
-err_deregister:
- led_classdev_unregister(&led->cdev);
-
- return ret;
-}
-
-static void lm3533_led_remove(struct platform_device *pdev)
-{
- struct lm3533_led *led = platform_get_drvdata(pdev);
-
- dev_dbg(&pdev->dev, "%s\n", __func__);
-
- lm3533_ctrlbank_disable(&led->cb);
- led_classdev_unregister(&led->cdev);
-}
-
-static void lm3533_led_shutdown(struct platform_device *pdev)
-{
-
- struct lm3533_led *led = platform_get_drvdata(pdev);
-
- dev_dbg(&pdev->dev, "%s\n", __func__);
-
- lm3533_ctrlbank_disable(&led->cb);
- lm3533_led_set(&led->cdev, LED_OFF); /* disable blink */
-}
-
-static struct platform_driver lm3533_led_driver = {
- .driver = {
- .name = "lm3533-leds",
- },
- .probe = lm3533_led_probe,
- .remove_new = lm3533_led_remove,
- .shutdown = lm3533_led_shutdown,
-};
-module_platform_driver(lm3533_led_driver);
-
-MODULE_AUTHOR("Johan Hovold <jhovold@xxxxxxxxx>");
-MODULE_DESCRIPTION("LM3533 LED driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:lm3533-leds");
--
2.43.0.rc1.1336.g36b5255a03ac