drm/i915/tgl/dsi: Do not override TA_SURE (7b864f95) · Commits · 戴 / test

Do not override TA_SURE timing parameter to zero for DSI 8X frequency 800MHz or below on TGL. Signed-off-by:

drivers/gpu/drm/i915/display/icl_dsi.c

+14 −12

Original line number	Diff line number	Diff line
		@@ -530,6 +530,7 @@ static void gen11_dsi_setup_dphy_timings(struct intel_encoder *encoder)
		* a value '0' inside TA_PARAM_REGISTERS otherwise
		* leave all fields at HW default values.
		*/
		if (IS_GEN(dev_priv, 11)) {
		if (intel_dsi_bitrate(intel_dsi) <= 800000) {
		for_each_dsi_port(port, intel_dsi->ports) {
		tmp = I915_READ(DPHY_TA_TIMING_PARAM(port));
		@@ -544,6 +545,7 @@ static void gen11_dsi_setup_dphy_timings(struct intel_encoder *encoder)
		I915_WRITE(DSI_TA_TIMING_PARAM(port), tmp);
		}
		}
		}

		if (IS_ELKHARTLAKE(dev_priv)) {
		for_each_dsi_phy(phy, intel_dsi->phys) {