[PATCH 5/5] drm/i915/dsi: set a few DSI_TRANS_FUNC_CONF bits according to VBT

[Jani Nikula]

Set the relevant DSI_TRANS_FUNC_CONF bits according to VBT DSI DPHY
config.

The DSI VBT usage is a nightmare, but that's for another time.

Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/display/icl_dsi.c       | 10 ++++++++++
 drivers/gpu/drm/i915/display/intel_dsi.h     |  2 ++
 drivers/gpu/drm/i915/display/intel_dsi_vbt.c |  2 ++
 3 files changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
index 74ab3d1a1622..bc94bcf5156c 100644
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -704,6 +704,16 @@ gen11_dsi_configure_transcoder(struct intel_encoder *encoder,
 		else
 			tmp |= EOTP_DISABLED;
 
+		if (is_vid_mode(intel_dsi) && intel_dsi->blanking_packets_during_bllp)
+			tmp |= BLANKING_PACKET_ENABLE;
+		else
+			tmp &= BLANKING_PACKET_ENABLE;
+
+		if (intel_dsi->lp_clock_during_lpm)
+			tmp |= LP_CLOCK_DURING_LPM;
+		else
+			tmp &= LP_CLOCK_DURING_LPM;
+
 		/* enable link calibration if freq > 1.5Gbps */
 		if (afe_clk(encoder, pipe_config) >= 1500 * 1000) {
 			tmp &= ~LINK_CALIBRATION_MASK;
diff --git a/drivers/gpu/drm/i915/display/intel_dsi.h b/drivers/gpu/drm/i915/display/intel_dsi.h
index e8ba4ccd99d3..58fb0fe48638 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi.h
+++ b/drivers/gpu/drm/i915/display/intel_dsi.h
@@ -82,6 +82,8 @@ struct intel_dsi {
 	/* eot for MIPI_EOT_DISABLE register */
 	u8 eotp_pkt;
 	u8 clock_stop;
+	bool blanking_packets_during_bllp;
+	bool lp_clock_during_lpm;
 
 	u8 escape_clk_div;
 	u8 dual_link;
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index b2b78f39cfd3..29de72efeed0 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -777,6 +777,8 @@ bool intel_dsi_vbt_init(struct intel_dsi *intel_dsi, u16 panel_id)
 
 	intel_dsi->eotp_pkt = mipi_config->eot_pkt_disabled ? 0 : 1;
 	intel_dsi->clock_stop = mipi_config->enable_clk_stop ? 1 : 0;
+	intel_dsi->blanking_packets_during_bllp = mipi_config->blanking_packets_during_bllp;
+	intel_dsi->lp_clock_during_lpm = mipi_config->lp_clock_during_lpm;
 	intel_dsi->lane_count = mipi_config->lane_cnt + 1;
 	intel_dsi->pixel_format =
 		vbt_to_dsi_pixel_format(mipi_config->videomode_color_format);
-- 
2.39.5