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Commit e9c9e5ae authored by Puthikorn Voravootivat's avatar Puthikorn Voravootivat Committed by Jani Nikula
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drm/i915: Set backlight mode before enable backlight 



We should set backlight mode register before set register to
enable the backlight.

Signed-off-by: default avatarPuthikorn Voravootivat <puthik@chromium.org>
Reviewed-by: default avatarDhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170511230225.142870-6-puthik@chromium.org
parent 73ab484c

drivers/gpu/drm/i915/intel_dp_aux_backlight.c

+2 −2
Original line number Diff line number Diff line
@@ -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)