diff options
author | Milo(Woogyom) Kim <milo.kim@ti.com> | 2013-02-05 19:07:34 +0900 |
---|---|---|
committer | Bryan Wu <cooloney@gmail.com> | 2013-02-06 15:59:28 -0800 |
commit | 0e2023463a3c9412728cb2c36c79aca0bb731cc8 (patch) | |
tree | d88e84842ab9b3fcca01e56da349f7c94e61ae0a /drivers/leds/leds-lp5523.c | |
parent | 9e9b3db1b2f725bacaf1b7e8708a0c78265bde97 (diff) |
leds-lp55xx: use lp55xx_init_led() common function
lp5521_init_led() and lp5523_init_led() are replaced with one common function,
lp55xx_init_led().
Max channels is configurable, so it's used in lp55xx_init_led().
'LP5523_LEDS' are changed to 'LP5523_MAX_LEDS'.
lp55xx_set_brightness, lp55xx_led_attributes: skeleton
Will be filled in next patches.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
Diffstat (limited to 'drivers/leds/leds-lp5523.c')
-rw-r--r-- | drivers/leds/leds-lp5523.c | 62 |
1 files changed, 7 insertions, 55 deletions
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c index 41ac502ff82f..ca2f8134909f 100644 --- a/drivers/leds/leds-lp5523.c +++ b/drivers/leds/leds-lp5523.c @@ -94,7 +94,7 @@ #define LP5523_PROGRAM_PAGES 6 #define LP5523_ADC_SHORTCIRC_LIM 80 -#define LP5523_LEDS 9 +#define LP5523_MAX_LEDS 9 #define LP5523_ENGINES 3 #define LP5523_ENG_MASK_BASE 0x30 /* 00110000 */ @@ -136,7 +136,7 @@ struct lp5523_chip { struct mutex lock; /* Serialize control */ struct i2c_client *client; struct lp5523_engine engines[LP5523_ENGINES]; - struct lp5523_led leds[LP5523_LEDS]; + struct lp5523_led leds[LP5523_MAX_LEDS]; struct lp5523_platform_data *pdata; u8 num_channels; u8 num_leds; @@ -285,7 +285,7 @@ static int lp5523_mux_parse(const char *buf, u16 *mux, size_t len) int i; u16 tmp_mux = 0; - len = min_t(int, len, LP5523_LEDS); + len = min_t(int, len, LP5523_MAX_LEDS); for (i = 0; i < len; i++) { switch (buf[i]) { case '1': @@ -308,7 +308,7 @@ static int lp5523_mux_parse(const char *buf, u16 *mux, size_t len) static void lp5523_mux_to_array(u16 led_mux, char *array) { int i, pos = 0; - for (i = 0; i < LP5523_LEDS; i++) + for (i = 0; i < LP5523_MAX_LEDS; i++) pos += sprintf(array + pos, "%x", LED_ACTIVE(led_mux, i)); array[pos] = '\0'; @@ -324,7 +324,7 @@ static ssize_t show_engine_leds(struct device *dev, { struct i2c_client *client = to_i2c_client(dev); struct lp5523_chip *chip = i2c_get_clientdata(client); - char mux[LP5523_LEDS + 1]; + char mux[LP5523_MAX_LEDS + 1]; lp5523_mux_to_array(chip->engines[nr - 1].led_mux, mux); @@ -417,7 +417,7 @@ static ssize_t lp5523_selftest(struct device *dev, vdd--; /* There may be some fluctuation in measurement */ - for (i = 0; i < LP5523_LEDS; i++) { + for (i = 0; i < LP5523_MAX_LEDS; i++) { /* Skip non-existing channels */ if (chip->pdata->led_config[i].led_current == 0) continue; @@ -773,55 +773,6 @@ static void lp5523_set_mode(struct lp5523_engine *engine, u8 mode) /*--------------------------------------------------------------*/ /* Probe, Attach, Remove */ /*--------------------------------------------------------------*/ -static int lp5523_init_led(struct lp5523_led *led, struct device *dev, - int chan, struct lp5523_platform_data *pdata, - const char *chip_name) -{ - char name[32]; - int res; - - if (chan >= LP5523_LEDS) - return -EINVAL; - - if (pdata->led_config[chan].led_current) { - 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; - - if (led->chan_nr >= LP5523_LEDS) { - dev_err(dev, "Use channel numbers between 0 and %d\n", - LP5523_LEDS - 1); - return -EINVAL; - } - - if (pdata->led_config[chan].name) { - led->cdev.name = pdata->led_config[chan].name; - } else { - snprintf(name, sizeof(name), "%s:channel%d", - pdata->label ? : chip_name, chan); - led->cdev.name = name; - } - - led->cdev.brightness_set = lp5523_set_brightness; - res = led_classdev_register(dev, &led->cdev); - if (res < 0) { - dev_err(dev, "couldn't register led on channel %d\n", - chan); - return res; - } - res = sysfs_create_group(&led->cdev.dev->kobj, - &lp5523_led_attribute_group); - if (res < 0) { - dev_err(dev, "couldn't register current attribute\n"); - led_classdev_unregister(&led->cdev); - return res; - } - } else { - led->led_current = 0; - } - return 0; -} - static void lp5523_unregister_leds(struct lp5523_chip *chip) { int i; @@ -842,6 +793,7 @@ static struct lp55xx_device_config lp5523_cfg = { .addr = LP5523_REG_ENABLE, .val = LP5523_ENABLE, }, + .max_channel = LP5523_MAX_LEDS, .post_init_device = lp5523_post_init_device, }; |