[Intel-gfx] [PATCH v7 20/23] drm/i915/icl: Power on DSI panel

Jani Nikula jani.nikula at intel.com
Mon Oct 15 14:28:08 UTC 2018


From: Madhav Chauhan <madhav.chauhan at intel.com>

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 at intel.com>
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/icl_dsi.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/i915/icl_dsi.c b/drivers/gpu/drm/i915/icl_dsi.c
index 5ede055b263e..0393fed98a6f 100644
--- a/drivers/gpu/drm/i915/icl_dsi.c
+++ b/drivers/gpu/drm/i915/icl_dsi.c
@@ -659,6 +659,13 @@ 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))
-- 
2.11.0



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