diff options
Diffstat (limited to 'SOURCES/steam-deck.patch')
| -rw-r--r-- | SOURCES/steam-deck.patch | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/SOURCES/steam-deck.patch b/SOURCES/steam-deck.patch index b118c46..25a3e52 100644 --- a/SOURCES/steam-deck.patch +++ b/SOURCES/steam-deck.patch @@ -976,5 +976,89 @@ index 0e504b3c2796..a60fa7db9141 100644 NULL }; +From: Matthew Schwartz <njtransit215@gmail.com> Mon Sep 17 00:00:00 2001 +From: Andrey Smirnov <andrew.smirnov@gmail.com> +Date: Mon, 20 Nov 2023 05:42:03 -0800 +Subject: [PATCH] leds-steamdeck: Add support for LED birghtness multiplier + +Add support for LED birghtness multiplier exposed via custom sysfs +attribute (led_brightness_multiplier). + +Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> +(cherry picked from commit c4ea057992e189ec8821cde3a65e2cc0529a5088) +(cherry picked from commit e90fb9bec45c15c0c541ce60b994bab3922ddadf) +Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> +--- + drivers/leds/leds-steamdeck.c | 49 +++++++++++++++++++++++++++++++++++ + 1 file changed, 49 insertions(+) + +diff --git a/drivers/leds/leds-steamdeck.c b/drivers/leds/leds-steamdeck.c +index 686500b8de736..ada9fffc0a420 100644 +--- a/drivers/leds/leds-steamdeck.c ++++ b/drivers/leds/leds-steamdeck.c +@@ -16,6 +16,54 @@ struct steamdeck_led { + struct led_classdev cdev; + }; + ++static ssize_t led_brightness_multiplier_show(struct device *dev, ++ struct device_attribute *attr, ++ char *buf) ++{ ++ struct led_classdev *cdev = dev_get_drvdata(dev); ++ struct steamdeck_led *sd = container_of(cdev, struct steamdeck_led, ++ cdev); ++ unsigned long long led_brightness_multiplier; ++ ++ if (ACPI_FAILURE(acpi_evaluate_integer(sd->adev->handle, ++ "GLDM", ++ NULL, ++ &led_brightness_multiplier))) ++ return -EIO; ++ ++ ++ return sprintf(buf, "%llu", led_brightness_multiplier); ++} ++ ++static ssize_t led_brightness_multiplier_store(struct device *dev, ++ struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ struct led_classdev *cdev = dev_get_drvdata(dev); ++ struct steamdeck_led *sd = container_of(cdev, struct steamdeck_led, ++ cdev); ++ unsigned long value; ++ ++ if (kstrtoul(buf, 10, &value) || value > 100) ++ return -EINVAL; ++ ++ ++ if (ACPI_FAILURE(acpi_execute_simple_method(sd->adev->handle, ++ "SLDM", value))) ++ return -EIO; ++ ++ ++ return count; ++} ++ ++static DEVICE_ATTR_RW(led_brightness_multiplier); ++ ++static struct attribute *steamdeck_led_attrs[] = { ++ &dev_attr_led_brightness_multiplier.attr, ++ NULL ++}; ++ATTRIBUTE_GROUPS(steamdeck_led); ++ + static int steamdeck_leds_brightness_set(struct led_classdev *cdev, + enum led_brightness value) + { +@@ -44,6 +92,7 @@ static int steamdeck_leds_probe(struct platform_device *pdev) + sd->cdev.name = "status:white"; + sd->cdev.brightness_set_blocking = steamdeck_leds_brightness_set; + sd->cdev.max_brightness = 100; ++ sd->cdev.groups = steamdeck_led_groups; + + ret = devm_led_classdev_register(dev, &sd->cdev); + if (ret) { + -- 2.41.0 |