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Commit 0f0fe849 authored by Madhav Chauhan's avatar Madhav Chauhan Committed by Jani Nikula
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drm/i915/icl: Disable DSI IO power 



This patch configures mode of combo phy as DDI and
disable IO power for DDI ports used by DSI.

Signed-off-by: default avatarMadhav Chauhan <madhav.chauhan@intel.com>
Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b68d767717a3b86c26042d0b16abb3943756fcc4.1540900289.git.jani.nikula@intel.com
parent 019cec36

drivers/gpu/drm/i915/icl_dsi.c

+23 −0
Original line number Diff line number Diff line
@@ -873,6 +873,26 @@ static void gen11_dsi_disable_port(struct intel_encoder *encoder) 
	}

}



static void gen11_dsi_disable_io_power(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);

	enum port port;

	u32 tmp;



	intel_display_power_put(dev_priv, POWER_DOMAIN_PORT_DDI_A_IO);



	if (intel_dsi->dual_link)

		intel_display_power_put(dev_priv, POWER_DOMAIN_PORT_DDI_B_IO);



	/* set mode to DDI */

	for_each_dsi_port(port, intel_dsi->ports) {

		tmp = I915_READ(ICL_DSI_IO_MODECTL(port));

		tmp &= ~COMBO_PHY_MODE_DSI;

		I915_WRITE(ICL_DSI_IO_MODECTL(port), tmp);

	}

}



static void __attribute__((unused)) gen11_dsi_disable(

			struct intel_encoder *encoder,

			const struct intel_crtc_state *old_crtc_state,
@@ -895,4 +915,7 @@ static void __attribute__((unused)) gen11_dsi_disable( 


	/* step3: disable port */

	gen11_dsi_disable_port(encoder);



	/* step4: disable IO power */

	gen11_dsi_disable_io_power(encoder);

}