drm/i915/icl: Power on DSI panel

This patch execute poweron, deassert reset, display on
VBT sequences and send TURN_ON DSI command to panel for
powering it up.

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/8acb06fa634fe9637fdc09a3f5d2588b9138224f.1540900289.git.jani.nikula@intel.com

diff --git a/drivers/gpu/drm/i915/icl_dsi.c b/drivers/gpu/drm/i915/icl_dsi.c
index 9c424adc8b7539e9a7c210e85a8e1d76cc46a424..d9c91001f107a5b589e867ac1acbe437050176fb 100644 (file)
--- a/drivers/gpu/drm/i915/icl_dsi.c
+++ b/drivers/gpu/drm/i915/icl_dsi.c
@@ -664,6 +664,13 @@ static void gen11_dsi_powerup_panel(struct intel_encoder *encoder)
                if (ret < 0)
                        DRM_ERROR("error setting max return pkt size%d\n", tmp);
        }
+
+       /* panel power on related mipi dsi vbt sequences */
+       intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_POWER_ON);
+       intel_dsi_msleep(intel_dsi, intel_dsi->panel_on_delay);
+       intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_DEASSERT_RESET);
+       intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_INIT_OTP);
+       intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_DISPLAY_ON);
 }
 
 static void __attribute__((unused))