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| author |   Alex Deucher <alexander.deucher@amd.com> | 2012-07-26 11:05:22 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2012-09-20 13:10:34 -0400 |
| commit | 910308802c528f8afe864b694d5456fedd0bb18f (patch) | |
| tree | e957691745999c6192e5caffc3558ab45179ffe8 /drivers/gpu/drm/radeon/radeon_legacy_encoders.c | |
| parent | drm/radeon: track whether the GPU controls the backlight (v2) (diff) | |
| download | linux-dev-910308802c528f8afe864b694d5456fedd0bb18f.tar.xz linux-dev-910308802c528f8afe864b694d5456fedd0bb18f.zip | |
drm/radeon: rework legacy backlight control
To better enable sharing with atom backlight control.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_legacy_encoders.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_legacy_encoders.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index 670e9910f869..9910fe494744 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -271,13 +271,6 @@ static const struct drm_encoder_helper_funcs radeon_legacy_lvds_helper_funcs = { #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) || defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE) -#define MAX_RADEON_LEVEL 0xFF - -struct radeon_backlight_privdata { - struct radeon_encoder *encoder; - uint8_t negative; -}; - static uint8_t radeon_legacy_lvds_level(struct backlight_device *bd) { struct radeon_backlight_privdata *pdata = bl_get_data(bd); @@ -286,13 +279,13 @@ static uint8_t radeon_legacy_lvds_level(struct backlight_device *bd) /* Convert brightness to hardware level */ if (bd->props.brightness < 0) level = 0; - else if (bd->props.brightness > MAX_RADEON_LEVEL) - level = MAX_RADEON_LEVEL; + else if (bd->props.brightness > RADEON_MAX_BL_LEVEL) + level = RADEON_MAX_BL_LEVEL; else level = bd->props.brightness; if (pdata->negative) - level = MAX_RADEON_LEVEL - level; + level = RADEON_MAX_BL_LEVEL - level; return level; } @@ -336,7 +329,7 @@ static int radeon_legacy_backlight_get_brightness(struct backlight_device *bd) backlight_level = (RREG32(RADEON_LVDS_GEN_CNTL) >> RADEON_LVDS_BL_MOD_LEVEL_SHIFT) & 0xff; - return pdata->negative ? MAX_RADEON_LEVEL - backlight_level : backlight_level; + return pdata->negative ? RADEON_MAX_BL_LEVEL - backlight_level : backlight_level; } static const struct backlight_ops radeon_backlight_ops = { @@ -370,7 +363,7 @@ void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder, } memset(&props, 0, sizeof(props)); - props.max_brightness = MAX_RADEON_LEVEL; + props.max_brightness = RADEON_MAX_BL_LEVEL; props.type = BACKLIGHT_RAW; bd = backlight_device_register("radeon_bl", &drm_connector->kdev, pdata, &radeon_backlight_ops, &props); @@ -449,7 +442,7 @@ static void radeon_legacy_backlight_exit(struct radeon_encoder *radeon_encoder) } if (bd) { - struct radeon_legacy_backlight_privdata *pdata; + struct radeon_backlight_privdata *pdata; pdata = bl_get_data(bd); backlight_device_unregister(bd); |