For the whole series:
For the whole series:
Reviewed-by: Lyude Paul lyude@redhat.com
I'm going to add a Cc for stable so that it can be backported, and I'll push it to drm-intel-next-queued once I get the OK from drm-misc/i915 folks
On Fri, 2020-10-09 at 16:57 +0800, Aaron Ma wrote:
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
drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c | 3 +-- 1 file changed, 1 insertion(+), 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 acbd7eb66cbe..308b14159b7c 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c @@ -334,8 +334,7 @@ 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)) {