drm/i915/dsi: Add check for periodic command mode (cebb28ac) · Commits · 戴 / test

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

+24 −0

Original line number	Diff line number	Diff line
		@@ -1423,6 +1423,22 @@ static void gen11_dsi_get_timings(struct intel_encoder *encoder,
		adjusted_mode->crtc_vblank_end = adjusted_mode->crtc_vtotal;
		}

		static bool gen11_dsi_is_periodic_cmd_mode(struct intel_dsi *intel_dsi)
		{
		struct drm_device *dev = intel_dsi->base.base.dev;
		struct drm_i915_private *dev_priv = to_i915(dev);
		enum transcoder dsi_trans;
		u32 val;

		if (intel_dsi->ports == BIT(PORT_B))
		dsi_trans = TRANSCODER_DSI_1;
		else
		dsi_trans = TRANSCODER_DSI_0;

		val = intel_de_read(dev_priv, DSI_TRANS_FUNC_CONF(dsi_trans));
		return (val & DSI_PERIODIC_FRAME_UPDATE_ENABLE);
		}

		static void gen11_dsi_get_config(struct intel_encoder *encoder,
		struct intel_crtc_state *pipe_config)
		{
		@@ -1443,6 +1459,10 @@ static void gen11_dsi_get_config(struct intel_encoder *encoder,
		gen11_dsi_get_timings(encoder, pipe_config);
		pipe_config->output_types \|= BIT(INTEL_OUTPUT_DSI);
		pipe_config->pipe_bpp = bdw_get_pipemisc_bpp(crtc);

		if (gen11_dsi_is_periodic_cmd_mode(intel_dsi))
		pipe_config->hw.adjusted_mode.private_flags \|=
		I915_MODE_FLAG_DSI_PERIODIC_CMD_MODE;
		}

		static int gen11_dsi_dsc_compute_config(struct intel_encoder *encoder,
		@@ -1526,6 +1546,10 @@ static int gen11_dsi_compute_config(struct intel_encoder *encoder,

		pipe_config->port_clock = afe_clk(encoder, pipe_config) / 5;

		/* We would not operate in periodic command mode */
		pipe_config->hw.adjusted_mode.private_flags &=
		~I915_MODE_FLAG_DSI_PERIODIC_CMD_MODE;

		return 0;
		}