diff options
| author |   Puthikorn Voravootivat <puthik@chromium.org> | 2017-05-11 16:02:21 -0700 |
|---|---|---|
| committer |   Jani Nikula <jani.nikula@intel.com> | 2017-05-12 15:50:35 +0300 |
| commit | e9c9e5ae8b57a6f29aecc303b36173e0be7fdd60 (patch) | |
| tree | aee27bcd5505148dcf36ee35012ea13dcc5a2456 /drivers/gpu/drm/i915/intel_dp_aux_backlight.c | |
| parent | drm/i915: Correctly enable backlight brightness adjustment via DPCD (diff) | |
| download | linux-dev-e9c9e5ae8b57a6f29aecc303b36173e0be7fdd60.tar.xz linux-dev-e9c9e5ae8b57a6f29aecc303b36173e0be7fdd60.zip | |
drm/i915: Set backlight mode before enable backlight
We should set backlight mode register before set register to
enable the backlight.
Signed-off-by: Puthikorn Voravootivat <puthik@chromium.org>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170511230225.142870-6-puthik@chromium.org
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp_aux_backlight.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp_aux_backlight.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp_aux_backlight.c b/drivers/gpu/drm/i915/intel_dp_aux_backlight.c index 870c03fc0f3a..5f945e05efe2 100644 --- a/drivers/gpu/drm/i915/intel_dp_aux_backlight.c +++ b/drivers/gpu/drm/i915/intel_dp_aux_backlight.c @@ -99,8 +99,6 @@ static void intel_dp_aux_enable_backlight(struct intel_connector *connector) uint8_t dpcd_buf = 0; uint8_t edp_backlight_mode = 0; - set_aux_backlight_enable(intel_dp, true); - if (drm_dp_dpcd_readb(&intel_dp->aux, DP_EDP_BACKLIGHT_MODE_SET_REGISTER, &dpcd_buf) != 1) { DRM_DEBUG_KMS("Failed to read DPCD register 0x%x\n", @@ -127,6 +125,8 @@ static void intel_dp_aux_enable_backlight(struct intel_connector *connector) default: break; } + + set_aux_backlight_enable(intel_dp, true); } static void intel_dp_aux_disable_backlight(struct intel_connector *connector) |