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drm/i915/icl: Turn ON panel backlight
author
Madhav Chauhan
<madhav.chauhan@intel.com>
Tue, 30 Oct 2018 11:56:12 +0000
(13:56 +0200)
committer
Jani Nikula
<jani.nikula@intel.com>
Wed, 31 Oct 2018 11:13:04 +0000
(13:13 +0200)
This patch enables backlight of DSI panel by using VBT
BACKLIGHT_ON sequence and panel specific functions.
Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link:
https://patchwork.freedesktop.org/patch/msgid/05987eea297689af0b9defcf745a921f76f9011d.1540900289.git.jani.nikula@intel.com
drivers/gpu/drm/i915/icl_dsi.c
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diff --git
a/drivers/gpu/drm/i915/icl_dsi.c
b/drivers/gpu/drm/i915/icl_dsi.c
index
0f0447b
..
bffbb40
100644
(file)
--- a/
drivers/gpu/drm/i915/icl_dsi.c
+++ b/
drivers/gpu/drm/i915/icl_dsi.c
@@
-752,6
+752,8
@@
gen11_dsi_pre_enable(struct intel_encoder *encoder,
const struct intel_crtc_state *pipe_config,
const struct drm_connector_state *conn_state)
{
+ struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
+
/* step2: enable IO power */
gen11_dsi_enable_io_power(encoder);
@@
-769,4
+771,8
@@
gen11_dsi_pre_enable(struct intel_encoder *encoder,
/* step6d: enable dsi transcoder */
gen11_dsi_enable_transcoder(encoder);
+
+ /* step7: enable backlight */
+ intel_panel_enable_backlight(pipe_config, conn_state);
+ intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_BACKLIGHT_ON);
}