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drm/i915/icl: Turn ON panel backlight 

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
This commit is contained in:
Madhav Chauhan 2018-10-30 13:56:12 +02:00 committed by Jani Nikula
parent 32bbc3d450
commit 208013157a
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/i915/icl_dsi.c
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@ -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);
}