[PATCH v1 19/22] drm/amdgpu/atom: Backlight update

[Sam Ravnborg <sam@ravnborg.org>]

- Use macros for initialization
- Replace direct access to backlight_properties with get and set
  operations

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Cc: Sam Ravnborg <sam@ravnborg.org>
---
 drivers/gpu/drm/amd/amdgpu/atombios_encoders.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c
index 1e94a9b652f7..4338577eb7ba 100644
--- a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c
+++ b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c
@@ -122,15 +122,16 @@ amdgpu_atombios_encoder_set_backlight_level(struct amdgpu_encoder *amdgpu_encode
 
 static u8 amdgpu_atombios_encoder_backlight_level(struct backlight_device *bd)
 {
+	int brightness = backlight_get_brightness(bd);
 	u8 level;
 
 	/* Convert brightness to hardware level */
-	if (bd->props.brightness < 0)
+	if (brightness < 0)
 		level = 0;
-	else if (bd->props.brightness > AMDGPU_MAX_BL_LEVEL)
+	else if (brightness > AMDGPU_MAX_BL_LEVEL)
 		level = AMDGPU_MAX_BL_LEVEL;
 	else
-		level = bd->props.brightness;
+		level = brightness;
 
 	return level;
 }
@@ -165,6 +166,7 @@ static const struct backlight_ops amdgpu_atombios_encoder_backlight_ops = {
 void amdgpu_atombios_encoder_init_backlight(struct amdgpu_encoder *amdgpu_encoder,
 				     struct drm_connector *drm_connector)
 {
+	DECLARE_BACKLIGHT_INIT_RAW(props, 0, AMDGPU_MAX_BL_LEVEL);
 	struct drm_device *dev = amdgpu_encoder->base.dev;
 	struct amdgpu_device *adev = dev->dev_private;
 	struct backlight_device *bd;
@@ -193,9 +195,6 @@ void amdgpu_atombios_encoder_init_backlight(struct amdgpu_encoder *amdgpu_encode
 		goto error;
 	}
 
-	memset(&props, 0, sizeof(props));
-	props.max_brightness = AMDGPU_MAX_BL_LEVEL;
-	props.type = BACKLIGHT_RAW;
 	snprintf(bl_name, sizeof(bl_name),
 		 "amdgpu_bl%d", dev->primary->index);
 	bd = backlight_device_register(bl_name, drm_connector->kdev,
@@ -212,8 +211,8 @@ void amdgpu_atombios_encoder_init_backlight(struct amdgpu_encoder *amdgpu_encode
 	dig = amdgpu_encoder->enc_priv;
 	dig->bl_dev = bd;
 
-	bd->props.brightness = amdgpu_atombios_encoder_get_backlight_brightness(bd);
-	bd->props.power = FB_BLANK_UNBLANK;
+	backlight_set_brightness(bd, amdgpu_atombios_encoder_get_backlight_brightness(bd));
+	backlight_set_power_on(bd);
 	backlight_update_status(bd);
 
 	DRM_INFO("amdgpu atom DIG backlight initialized\n");
-- 
2.25.1

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