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| author | Sven Wegener <sven.wegener@stealer.net> | 2021-06-12 21:56:22 +0200 |
|---|---|---|
| committer | Daniel Golle <daniel@makrotopia.org> | 2022-09-18 15:39:41 +0100 |
| commit | 420a86436f6cfc3d53c4c503bc65e988ba8dc086 (patch) | |
| tree | cbaa5149bf70231e509f2c8d7252138d1970c174 | |
| parent | 40610c53226931e9ccab4c9e4b225e7ca6039c1d (diff) | |
| download | upstream-420a86436f6cfc3d53c4c503bc65e988ba8dc086.tar.gz upstream-420a86436f6cfc3d53c4c503bc65e988ba8dc086.tar.bz2 upstream-420a86436f6cfc3d53c4c503bc65e988ba8dc086.zip | |
mediatek: add led count
The LEDs connected to the MCU are so-called smart LEDs and their signal is
daisy-chained. Because of this, the MCU needs to be told how many LEDs are
connected. It also means the LEDs could be individually controlled, if the MCU
has a command for this.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
(cherry picked from commit 76198e8f09a607c6aca2621f59d7a4cd7f6653e3)
| -rw-r--r-- | target/linux/mediatek/files-5.10/drivers/leds/leds-ubnt-ledbar.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/target/linux/mediatek/files-5.10/drivers/leds/leds-ubnt-ledbar.c b/target/linux/mediatek/files-5.10/drivers/leds/leds-ubnt-ledbar.c index 10d240d2be..555340c5e8 100644 --- a/target/linux/mediatek/files-5.10/drivers/leds/leds-ubnt-ledbar.c +++ b/target/linux/mediatek/files-5.10/drivers/leds/leds-ubnt-ledbar.c @@ -31,9 +31,11 @@ #define UBNT_LEDBAR_TRANSACTION_BLUE_IDX 2 #define UBNT_LEDBAR_TRANSACTION_GREEN_IDX 3 #define UBNT_LEDBAR_TRANSACTION_RED_IDX 4 +#define UBNT_LEDBAR_TRANSACTION_LED_COUNT_IDX 6 struct ubnt_ledbar { struct mutex lock; + u32 led_count; struct i2c_client *client; struct led_classdev led_red; struct led_classdev led_green; @@ -60,7 +62,7 @@ static int ubnt_ledbar_apply_state(struct ubnt_ledbar *ledbar) char setup_msg[UBNT_LEDBAR_TRANSACTION_LENGTH] = {0x40, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11}; char led_msg[UBNT_LEDBAR_TRANSACTION_LENGTH] = {0x40, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x01, 0x00}; + 0x00, 0x00, 0x00, 0x00}; char i2c_response; int ret = 0; @@ -69,6 +71,7 @@ static int ubnt_ledbar_apply_state(struct ubnt_ledbar *ledbar) led_msg[UBNT_LEDBAR_TRANSACTION_BLUE_IDX] = ledbar->led_blue.brightness; led_msg[UBNT_LEDBAR_TRANSACTION_GREEN_IDX] = ledbar->led_green.brightness; led_msg[UBNT_LEDBAR_TRANSACTION_RED_IDX] = ledbar->led_red.brightness; + led_msg[UBNT_LEDBAR_TRANSACTION_LED_COUNT_IDX] = ledbar->led_count; gpiod_set_value(ledbar->enable_gpio, 1); @@ -191,6 +194,9 @@ static int ubnt_ledbar_probe(struct i2c_client *client, return ret; } + ledbar->led_count = 1; + of_property_read_u32(np, "led-count", &ledbar->led_count); + ledbar->client = client; mutex_init(&ledbar->lock); |