From 739e359241a3855bf8f7b6b99978495ad52d1004 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Thu, 16 Dec 2021 07:07:34 +0100 Subject: kernel: backport support for multicolor & RGB LEDs to 5.4 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is a requirement for backporting DT files defining such LEDs. Signed-off-by: Rafał Miłecki (cherry picked from commit 85ad48c9579c0482c98fc6b69e885102511e9194) --- ...B-color-option-as-that-is-different-from-.patch | 48 ++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 target/linux/generic/backport-5.4/900-v5.9-0003-leds-add-RGB-color-option-as-that-is-different-from-.patch (limited to 'target/linux/generic/backport-5.4/900-v5.9-0003-leds-add-RGB-color-option-as-that-is-different-from-.patch') diff --git a/target/linux/generic/backport-5.4/900-v5.9-0003-leds-add-RGB-color-option-as-that-is-different-from-.patch b/target/linux/generic/backport-5.4/900-v5.9-0003-leds-add-RGB-color-option-as-that-is-different-from-.patch new file mode 100644 index 0000000000..17c28149f6 --- /dev/null +++ b/target/linux/generic/backport-5.4/900-v5.9-0003-leds-add-RGB-color-option-as-that-is-different-from-.patch @@ -0,0 +1,48 @@ +From 54212f5a1ba3123281877e54c1e5f672bf7563d8 Mon Sep 17 00:00:00 2001 +From: Pavel Machek +Date: Mon, 3 Aug 2020 13:20:06 +0200 +Subject: [PATCH] leds: add RGB color option, as that is different from + multicolor. + +Multicolor is a bit too abstract. Yes, we can have +Green-Magenta-Ultraviolet LED, but so far all the LEDs we support are +RGB, and not even RGB-White or RGB-Yellow variants emerged. + +Multicolor is not a good fit for RGB LED. It does not really know +about LED color. In particular, there's no way to make LED "white". + +Userspace is interested in knowing "this LED can produce arbitrary +color", which not all multicolor LEDs can. + +Signed-off-by: Pavel Machek +--- + drivers/leds/led-core.c | 1 + + drivers/leds/leds-lp55xx-common.c | 2 +- + include/dt-bindings/leds/common.h | 6 ++++-- + 3 files changed, 6 insertions(+), 3 deletions(-) + +--- a/drivers/leds/led-core.c ++++ b/drivers/leds/led-core.c +@@ -35,6 +35,7 @@ const char * const led_colors[LED_COLOR_ + [LED_COLOR_ID_YELLOW] = "yellow", + [LED_COLOR_ID_IR] = "ir", + [LED_COLOR_ID_MULTI] = "multicolor", ++ [LED_COLOR_ID_RGB] = "rgb", + }; + EXPORT_SYMBOL_GPL(led_colors); + +--- a/include/dt-bindings/leds/common.h ++++ b/include/dt-bindings/leds/common.h +@@ -29,8 +29,10 @@ + #define LED_COLOR_ID_VIOLET 5 + #define LED_COLOR_ID_YELLOW 6 + #define LED_COLOR_ID_IR 7 +-#define LED_COLOR_ID_MULTI 8 +-#define LED_COLOR_ID_MAX 9 ++#define LED_COLOR_ID_MULTI 8 /* For multicolor LEDs */ ++#define LED_COLOR_ID_RGB 9 /* For multicolor LEDs that can do arbitrary color, ++ so this would include RGBW and similar */ ++#define LED_COLOR_ID_MAX 10 + + /* Standard LED functions */ + #define LED_FUNCTION_ACTIVITY "activity" -- cgit v1.2.3