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Commit 9c83ab1b authored by Madhav Chauhan's avatar Madhav Chauhan Committed by Jani Nikula
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drm/i915/icl: Disable portsync mode 



This patch disables portsync mode if DSI link
is operating in dual link mode by writing to
TRANS_DDI_FUNC_CTL2 registers.

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/3e608420b58930b6da478801bff018c6e964eb94.1540900289.git.jani.nikula@intel.com
parent 7aa32f7c

drivers/gpu/drm/i915/icl_dsi.c

+10 −0
Original line number Diff line number Diff line
@@ -841,6 +841,16 @@ static void gen11_dsi_deconfigure_trancoder(struct intel_encoder *encoder) 
		tmp &= ~TRANS_DDI_FUNC_ENABLE;

		I915_WRITE(TRANS_DDI_FUNC_CTL(dsi_trans), tmp);

	}



	/* disable port sync mode if dual link */

	if (intel_dsi->dual_link) {

		for_each_dsi_port(port, intel_dsi->ports) {

			dsi_trans = dsi_port_to_transcoder(port);

			tmp = I915_READ(TRANS_DDI_FUNC_CTL2(dsi_trans));

			tmp &= ~PORT_SYNC_MODE_ENABLE;

			I915_WRITE(TRANS_DDI_FUNC_CTL2(dsi_trans), tmp);

		}

	}

}



static void __attribute__((unused)) gen11_dsi_disable(