diff options
Diffstat (limited to 'drivers/leds/leds-lp55xx-common.c')
-rw-r--r-- | drivers/leds/leds-lp55xx-common.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c index 351825b96f1..9acc6bb7dee 100644 --- a/drivers/leds/leds-lp55xx-common.c +++ b/drivers/leds/leds-lp55xx-common.c @@ -20,6 +20,8 @@ #include <linux/module.h> #include <linux/platform_data/leds-lp55xx.h> #include <linux/slab.h> +#include <linux/gpio.h> +#include <linux/of_gpio.h> #include "leds-lp55xx-common.h" @@ -165,6 +167,7 @@ static int lp55xx_init_led(struct lp55xx_led *led, led->led_current = pdata->led_config[chan].led_current; led->max_current = pdata->led_config[chan].max_current; led->chan_nr = pdata->led_config[chan].chan_nr; + led->cdev.default_trigger = pdata->led_config[chan].default_trigger; if (led->chan_nr >= max_channel) { dev_err(dev, "Use channel numbers between 0 and %d\n", @@ -406,18 +409,18 @@ int lp55xx_init_device(struct lp55xx_chip *chip) if (!pdata || !cfg) return -EINVAL; - if (pdata->setup_resources) { - ret = pdata->setup_resources(); + if (gpio_is_valid(pdata->enable_gpio)) { + ret = devm_gpio_request_one(dev, pdata->enable_gpio, + GPIOF_DIR_OUT, "lp5523_enable"); if (ret < 0) { - dev_err(dev, "setup resoure err: %d\n", ret); + dev_err(dev, "could not acquire enable gpio (err=%d)\n", + ret); goto err; } - } - if (pdata->enable) { - pdata->enable(0); + gpio_set_value(pdata->enable_gpio, 0); usleep_range(1000, 2000); /* Keep enable down at least 1ms */ - pdata->enable(1); + gpio_set_value(pdata->enable_gpio, 1); usleep_range(1000, 2000); /* 500us abs min. */ } @@ -458,11 +461,8 @@ void lp55xx_deinit_device(struct lp55xx_chip *chip) if (chip->clk) clk_disable_unprepare(chip->clk); - if (pdata->enable) - pdata->enable(0); - - if (pdata->release_resources) - pdata->release_resources(); + if (gpio_is_valid(pdata->enable_gpio)) + gpio_set_value(pdata->enable_gpio, 0); } EXPORT_SYMBOL_GPL(lp55xx_deinit_device); @@ -586,6 +586,8 @@ int lp55xx_of_populate_pdata(struct device *dev, struct device_node *np) of_property_read_string(child, "chan-name", &cfg[i].name); of_property_read_u8(child, "led-cur", &cfg[i].led_current); of_property_read_u8(child, "max-cur", &cfg[i].max_current); + cfg[i].default_trigger = + of_get_property(child, "linux,default-trigger", NULL); i++; } @@ -593,6 +595,8 @@ int lp55xx_of_populate_pdata(struct device *dev, struct device_node *np) of_property_read_string(np, "label", &pdata->label); of_property_read_u8(np, "clock-mode", &pdata->clock_mode); + pdata->enable_gpio = of_get_named_gpio(np, "enable-gpio", 0); + /* LP8501 specific */ of_property_read_u8(np, "pwr-sel", (u8 *)&pdata->pwr_sel); |