Commit 8d58bb79 authored by Mikko Kovanen's avatar Mikko Kovanen Committed by Jani Nikula
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drm/i915/dsi: fix VBT send packet port selection for dual link DSI 



intel_dsi->ports contains bitmask of enabled ports and correspondingly
logic for selecting port for VBT packet sending must use port specific
bitmask when deciding appropriate port.

Fixes: 08c59dde ("drm/i915/dsi: fix VBT send packet port selection for ICL+")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarMikko Kovanen <mikko.kovanen@aavamobile.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/DBBPR09MB466592B16885D99ABBF2393A91119@DBBPR09MB4665.eurprd09.prod.outlook.com
parent 7674cd0b

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

+2 −2
Original line number Diff line number Diff line
@@ -137,9 +137,9 @@ static enum port intel_dsi_seq_port_to_port(struct intel_dsi *intel_dsi, 
		return ffs(intel_dsi->ports) - 1;



	if (seq_port) {

		if (intel_dsi->ports & PORT_B)

		if (intel_dsi->ports & BIT(PORT_B))

			return PORT_B;

		else if (intel_dsi->ports & PORT_C)

		else if (intel_dsi->ports & BIT(PORT_C))

			return PORT_C;

	}