Attachment 68764 Details for Bug 39550 – Enable the PANEL_BACKLIGHT_LEVEL GPIO

[patch] Enable the PANEL_BACKLIGHT_LEVEL GPIO

backlight.patch (text/plain), 1.07 KB, created by Emil Velikov on 2012-10-18 19:48:45 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Emil Velikov

Created: 2012-10-18 19:48:45 UTC

Size: 1.07 KB

patch

obsolete

>diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/gpio.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/gpio.h
>index e9789cf..14154bf 100644
>--- a/drivers/gpu/drm/nouveau/core/include/subdev/bios/gpio.h
>+++ b/drivers/gpu/drm/nouveau/core/include/subdev/bios/gpio.h
>@@ -5,6 +5,7 @@ struct nouveau_bios;
> 
> enum dcb_gpio_func_name {
> 	DCB_GPIO_PANEL_POWER = 0x01,
>+	DCB_GPIO_PANEL_BACKLIGHT_LEVEL = 0x21,
> 	DCB_GPIO_TVDAC0 = 0x0c,
> 	DCB_GPIO_TVDAC1 = 0x2d,
> 	DCB_GPIO_PWM_FAN = 0x09,
>diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
>index 2772a43..e679edd 100644
>--- a/drivers/gpu/drm/nouveau/nouveau_display.c
>+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
>@@ -234,6 +234,12 @@ nouveau_display_init(struct drm_device *dev)
> 		msleep(300);
> 	}
> 
>+	/* XXX: HP 8530w / Lenovo W510 hack */
>+	if (gpio && gpio->get(gpio, 0, DCB_GPIO_PANEL_BACKLIGHT_LEVEL, 0xff) == 0) {
>+		gpio->set(gpio, 0, DCB_GPIO_PANEL_BACKLIGHT_LEVEL, 0xff, 1);
>+		msleep(300);
>+	}
>+
> 	/* enable polling for external displays */
> 	drm_kms_helper_poll_enable(dev);
>

Actions: View | Splinter Review

Attachments on bug 39550: 49565 | 49572 | 51586 | 51716 | 68764 | 84974 | 85010 | 85012 | 100635 | 113754 | 140871

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.