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authorAlex Deucher <alexander.deucher@amd.com>2012-10-17 17:20:24 -0400
committerAlex Deucher <alexander.deucher@amd.com>2012-10-23 10:23:50 -0400
commit614499b4d844dcceae5ae2f1e53a2963789a8933 (patch)
tree518ab7c2080d48229d0ebbd8cb378393ff9d4d8f /drivers/gpu/drm/radeon/atombios_encoders.c
parent1518d7fb5d42aec6ec7349b3be8712af132b46fa (diff)
drm/radeon: give each backlight a unique id
In cases where we have multiple radeons with backlight controls. Should fix: https://bugzilla.kernel.org/show_bug.cgi?id=48941 Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_encoders.c')
-rw-r--r--drivers/gpu/drm/radeon/atombios_encoders.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index 49cbb3795a1..ba498f8e47a 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -184,6 +184,7 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
struct radeon_backlight_privdata *pdata;
struct radeon_encoder_atom_dig *dig;
u8 backlight_level;
+ char bl_name[16];
if (!radeon_encoder->enc_priv)
return;
@@ -203,7 +204,9 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
memset(&props, 0, sizeof(props));
props.max_brightness = RADEON_MAX_BL_LEVEL;
props.type = BACKLIGHT_RAW;
- bd = backlight_device_register("radeon_bl", &drm_connector->kdev,
+ snprintf(bl_name, sizeof(bl_name),
+ "radeon_bl%d", dev->primary->index);
+ bd = backlight_device_register(bl_name, &drm_connector->kdev,
pdata, &radeon_atom_backlight_ops, &props);
if (IS_ERR(bd)) {
DRM_ERROR("Backlight registration failed\n");