diff options
Diffstat (limited to 'drivers/leds/leds-turris-omnia.c')
| -rw-r--r-- | drivers/leds/leds-turris-omnia.c | 85 |
1 files changed, 41 insertions, 44 deletions
diff --git a/drivers/leds/leds-turris-omnia.c b/drivers/leds/leds-turris-omnia.c index 8c5bdc3847ee..7b2f4d0ae3fe 100644 --- a/drivers/leds/leds-turris-omnia.c +++ b/drivers/leds/leds-turris-omnia.c @@ -12,28 +12,20 @@ #include <linux/of.h> #include "leds.h" -#define OMNIA_BOARD_LEDS 12 -#define OMNIA_LED_NUM_CHANNELS 3 +#define OMNIA_BOARD_LEDS 12 +#define OMNIA_LED_NUM_CHANNELS 3 -#define CMD_LED_MODE 3 -#define CMD_LED_MODE_LED(l) ((l) & 0x0f) -#define CMD_LED_MODE_USER 0x10 +#define CMD_LED_MODE 3 +#define CMD_LED_MODE_LED(l) ((l) & 0x0f) +#define CMD_LED_MODE_USER 0x10 -#define CMD_LED_STATE 4 -#define CMD_LED_STATE_LED(l) ((l) & 0x0f) -#define CMD_LED_STATE_ON 0x10 +#define CMD_LED_STATE 4 +#define CMD_LED_STATE_LED(l) ((l) & 0x0f) +#define CMD_LED_STATE_ON 0x10 -#define CMD_LED_COLOR 5 -#define CMD_LED_SET_BRIGHTNESS 7 -#define CMD_LED_GET_BRIGHTNESS 8 - -#define OMNIA_CMD 0 - -#define OMNIA_CMD_LED_COLOR_LED 1 -#define OMNIA_CMD_LED_COLOR_R 2 -#define OMNIA_CMD_LED_COLOR_G 3 -#define OMNIA_CMD_LED_COLOR_B 4 -#define OMNIA_CMD_LED_COLOR_LEN 5 +#define CMD_LED_COLOR 5 +#define CMD_LED_SET_BRIGHTNESS 7 +#define CMD_LED_GET_BRIGHTNESS 8 struct omnia_led { struct led_classdev_mc mc_cdev; @@ -41,7 +33,7 @@ struct omnia_led { int reg; }; -#define to_omnia_led(l) container_of(l, struct omnia_led, mc_cdev) +#define to_omnia_led(l) container_of(l, struct omnia_led, mc_cdev) struct omnia_leds { struct i2c_client *client; @@ -55,21 +47,21 @@ static int omnia_led_brightness_set_blocking(struct led_classdev *cdev, struct led_classdev_mc *mc_cdev = lcdev_to_mccdev(cdev); struct omnia_leds *leds = dev_get_drvdata(cdev->dev->parent); struct omnia_led *led = to_omnia_led(mc_cdev); - u8 buf[OMNIA_CMD_LED_COLOR_LEN], state; + u8 buf[5], state; int ret; mutex_lock(&leds->lock); led_mc_calc_color_components(&led->mc_cdev, brightness); - buf[OMNIA_CMD] = CMD_LED_COLOR; - buf[OMNIA_CMD_LED_COLOR_LED] = led->reg; - buf[OMNIA_CMD_LED_COLOR_R] = mc_cdev->subled_info[0].brightness; - buf[OMNIA_CMD_LED_COLOR_G] = mc_cdev->subled_info[1].brightness; - buf[OMNIA_CMD_LED_COLOR_B] = mc_cdev->subled_info[2].brightness; + buf[0] = CMD_LED_COLOR; + buf[1] = led->reg; + buf[2] = mc_cdev->subled_info[0].brightness; + buf[3] = mc_cdev->subled_info[1].brightness; + buf[4] = mc_cdev->subled_info[2].brightness; state = CMD_LED_STATE_LED(led->reg); - if (buf[OMNIA_CMD_LED_COLOR_R] || buf[OMNIA_CMD_LED_COLOR_G] || buf[OMNIA_CMD_LED_COLOR_B]) + if (buf[2] || buf[3] || buf[4]) state |= CMD_LED_STATE_ON; ret = i2c_smbus_write_byte_data(leds->client, CMD_LED_STATE, state); @@ -98,9 +90,9 @@ static int omnia_led_register(struct i2c_client *client, struct omnia_led *led, } ret = of_property_read_u32(np, "color", &color); - if (ret || color != LED_COLOR_ID_MULTI) { + if (ret || color != LED_COLOR_ID_RGB) { dev_warn(dev, - "Node %pOF: must contain 'color' property with value LED_COLOR_ID_MULTI\n", + "Node %pOF: must contain 'color' property with value LED_COLOR_ID_RGB\n", np); return 0; } @@ -126,18 +118,21 @@ static int omnia_led_register(struct i2c_client *client, struct omnia_led *led, CMD_LED_MODE_LED(led->reg) | CMD_LED_MODE_USER); if (ret < 0) { - dev_err(dev, "Cannot set LED %pOF to software mode: %i\n", np, ret); + dev_err(dev, "Cannot set LED %pOF to software mode: %i\n", np, + ret); return ret; } /* disable the LED */ - ret = i2c_smbus_write_byte_data(client, CMD_LED_STATE, CMD_LED_STATE_LED(led->reg)); + ret = i2c_smbus_write_byte_data(client, CMD_LED_STATE, + CMD_LED_STATE_LED(led->reg)); if (ret < 0) { dev_err(dev, "Cannot set LED %pOF brightness: %i\n", np, ret); return ret; } - ret = devm_led_classdev_multicolor_register_ext(dev, &led->mc_cdev, &init_data); + ret = devm_led_classdev_multicolor_register_ext(dev, &led->mc_cdev, + &init_data); if (ret < 0) { dev_err(dev, "Cannot register LED %pOF: %i\n", np, ret); return ret; @@ -157,7 +152,8 @@ static int omnia_led_register(struct i2c_client *client, struct omnia_led *led, * file lives in the device directory of the LED controller, not an individual * LED, so it should not confuse users. */ -static ssize_t brightness_show(struct device *dev, struct device_attribute *a, char *buf) +static ssize_t brightness_show(struct device *dev, struct device_attribute *a, + char *buf) { struct i2c_client *client = to_i2c_client(dev); struct omnia_leds *leds = i2c_get_clientdata(client); @@ -173,22 +169,23 @@ static ssize_t brightness_show(struct device *dev, struct device_attribute *a, c return sprintf(buf, "%d\n", ret); } -static ssize_t brightness_store(struct device *dev, struct device_attribute *a, const char *buf, - size_t count) +static ssize_t brightness_store(struct device *dev, struct device_attribute *a, + const char *buf, size_t count) { struct i2c_client *client = to_i2c_client(dev); struct omnia_leds *leds = i2c_get_clientdata(client); - unsigned int brightness; + unsigned long brightness; int ret; - if (sscanf(buf, "%u", &brightness) != 1) + if (kstrtoul(buf, 10, &brightness)) return -EINVAL; if (brightness > 100) return -EINVAL; mutex_lock(&leds->lock); - ret = i2c_smbus_write_byte_data(client, CMD_LED_SET_BRIGHTNESS, (u8) brightness); + ret = i2c_smbus_write_byte_data(client, CMD_LED_SET_BRIGHTNESS, + (u8)brightness); mutex_unlock(&leds->lock); if (ret < 0) @@ -250,18 +247,18 @@ static int omnia_leds_probe(struct i2c_client *client, static int omnia_leds_remove(struct i2c_client *client) { - u8 buf[OMNIA_CMD_LED_COLOR_LEN]; + u8 buf[5]; /* put all LEDs into default (HW triggered) mode */ i2c_smbus_write_byte_data(client, CMD_LED_MODE, CMD_LED_MODE_LED(OMNIA_BOARD_LEDS)); /* set all LEDs color to [255, 255, 255] */ - buf[OMNIA_CMD] = CMD_LED_COLOR; - buf[OMNIA_CMD_LED_COLOR_LED] = OMNIA_BOARD_LEDS; - buf[OMNIA_CMD_LED_COLOR_R] = 255; - buf[OMNIA_CMD_LED_COLOR_G] = 255; - buf[OMNIA_CMD_LED_COLOR_B] = 255; + buf[0] = CMD_LED_COLOR; + buf[1] = OMNIA_BOARD_LEDS; + buf[2] = 255; + buf[3] = 255; + buf[4] = 255; i2c_master_send(client, buf, 5); |