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Commit d9d996b6 authored by Madhav Chauhan's avatar Madhav Chauhan Committed by Jani Nikula
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drm/i915/icl: Turn OFF panel backlight 



This patch disbles backlight of DSI panel by using VBT
BACKLIGHT_OFF sequence and panel specific disable functions.

Signed-off-by: default avatarMadhav Chauhan <madhav.chauhan@intel.com>
Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/93cfbb198104deef4a281bbdef721385e4b6d954.1540900289.git.jani.nikula@intel.com
parent 20801315

drivers/gpu/drm/i915/icl_dsi.c

+12 −0
Original line number Diff line number Diff line
@@ -776,3 +776,15 @@ gen11_dsi_pre_enable(struct intel_encoder *encoder, 
	intel_panel_enable_backlight(pipe_config, conn_state);

	intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_BACKLIGHT_ON);

}



static void __attribute__((unused)) gen11_dsi_disable(

			struct intel_encoder *encoder,

			const struct intel_crtc_state *old_crtc_state,

			const struct drm_connector_state *old_conn_state)

{

	struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);



	/* step1: turn off backlight */

	intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_BACKLIGHT_OFF);

	intel_panel_disable_backlight(old_conn_state);

}