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drm/i915/icl: Turn OFF panel backlight

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This patch disbles backlight of DSI panel by using VBT
BACKLIGHT_OFF sequence and panel specific disable 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/93cfbb198104deef4a281bbdef721385e4b6d954.1540900289.git.jani.nikula@intel.com
This commit is contained in:
Madhav Chauhan 2018-10-30 13:56:13 +02:00 committed by Jani Nikula
parent 208013157a
commit d9d996b6ca
1 changed files with 12 additions and 0 deletions
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12
drivers/gpu/drm/i915/icl_dsi.c
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@ -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);
}