From: Madhav Chauhan <madhav.chau...@intel.com>
This patch enables backlight of DSI panel by using VBT
BACKLIGHT_ON sequence and panel specific functions.
Signed-off-by: Madhav Chauhan <madhav.chau...@intel.com>
Reviewed-by: Jani Nikula <jani.nik...@intel.com>
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
drivers/gpu/drm/i915/icl_dsi.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/i915/icl_dsi.c b/drivers/gpu/drm/i915/icl_dsi.c
index 0f0447b6b1be..bffbb40cc0bc 100644
--- 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);
}
--
2.11.0
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