drm/i915/icl: Ungate DSI clocks (1026bea0) · Commits · 戴 / test

drivers/gpu/drm/i915/icl_dsi.c

+19 −0

Original line number	Diff line number	Diff line
		@@ -553,6 +553,23 @@ static void gen11_dsi_gate_clocks(struct intel_encoder *encoder)
		mutex_unlock(&dev_priv->dpll_lock);
		}

		static void gen11_dsi_ungate_clocks(struct intel_encoder *encoder)
		{
		struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
		struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
		u32 tmp;
		enum port port;

		mutex_lock(&dev_priv->dpll_lock);
		tmp = I915_READ(DPCLKA_CFGCR0_ICL);
		for_each_dsi_port(port, intel_dsi->ports) {
		tmp &= ~DPCLKA_CFGCR0_DDI_CLK_OFF(port);
		}

		I915_WRITE(DPCLKA_CFGCR0_ICL, tmp);
		mutex_unlock(&dev_priv->dpll_lock);
		}

		static void
		gen11_dsi_configure_transcoder(struct intel_encoder *encoder,
		const struct intel_crtc_state *pipe_config)
		@@ -1061,6 +1078,7 @@ static void gen11_dsi_disable_port(struct intel_encoder *encoder)
		u32 tmp;
		enum port port;

		gen11_dsi_ungate_clocks(encoder);
		for_each_dsi_port(port, intel_dsi->ports) {
		tmp = I915_READ(DDI_BUF_CTL(port));
		tmp &= ~DDI_BUF_CTL_ENABLE;
		@@ -1072,6 +1090,7 @@ static void gen11_dsi_disable_port(struct intel_encoder *encoder)
		DRM_ERROR("DDI port:%c buffer not idle\n",
		port_name(port));
		}
		gen11_dsi_ungate_clocks(encoder);
		}

		static void gen11_dsi_disable_io_power(struct intel_encoder *encoder)