diff options
| author | Aaron Ma <aaron.ma@canonical.com> | 2020-10-09 11:57:49 +0300 |
|---|---|---|
| committer | Lyude Paul <lyude@redhat.com> | 2020-10-13 02:37:15 +0300 |
| commit | 98e497e203a58b6419e20a8f820c8fd8c50e8da7 (patch) | |
| tree | aa52d0aef865fb7073615747b5c78cb708a48a27 /drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c | |
| parent | 4ade8f31c25bef7ce7ed4d7cbac17df7c4bad850 (diff) | |
| download | linux-98e497e203a58b6419e20a8f820c8fd8c50e8da7.tar.xz | |
drm/i915/dpcd_bl: uncheck PWM_PIN_CAP when detect eDP backlight capabilities
BOE panel with ID 2270 claims both PWM_PIN_CAP and AUX_SET_CAP backlight
control bits, but default chip backlight failed to control brightness.
Check AUX_SET_CAP and proceed to check quirks or VBT backlight type.
DPCD can control the brightness of this pannel.
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201009085750.88490-1-aaron.ma@canonical.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c index 036f504ac7db..51d27fc98d48 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c @@ -343,8 +343,7 @@ intel_dp_aux_display_control_capable(struct intel_connector *connector) * the panel can support backlight control over the aux channel */ if (intel_dp->edp_dpcd[1] & DP_EDP_TCON_BACKLIGHT_ADJUSTMENT_CAP && - (intel_dp->edp_dpcd[2] & DP_EDP_BACKLIGHT_BRIGHTNESS_AUX_SET_CAP) && - !(intel_dp->edp_dpcd[2] & DP_EDP_BACKLIGHT_BRIGHTNESS_PWM_PIN_CAP)) { + (intel_dp->edp_dpcd[2] & DP_EDP_BACKLIGHT_BRIGHTNESS_AUX_SET_CAP)) { drm_dbg_kms(&i915->drm, "AUX Backlight Control Supported!\n"); return true; } |