[Intel-gfx] [PATCH 3/4] drm/i915: Enable MIPI PHY transparent latch for DSI Port C

[Gaurav K Singh]

Common bit to be used for both DSI Port A & DSI Port C.

Signed-off-by: Gaurav K Singh <gaurav.k.singh at intel.com>
---
 drivers/gpu/drm/i915/intel_dsi.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index 8f8b952..215d004 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -177,7 +177,12 @@ static void intel_dsi_device_ready(struct intel_encoder *encoder)
 		usleep_range(2500, 3000);
 
 		val = I915_READ(MIPI_PORT_CTRL(port));
-		I915_WRITE(MIPI_PORT_CTRL(port), val | LP_OUTPUT_HOLD);
+
+		/* Enable MIPI PHY transparent latch
+		 * Common bit for both MIPI Port A & MIPI Port C
+		 * No similar bit in MIPI Port C reg
+		 */
+		I915_WRITE(MIPI_PORT_CTRL(PORT_A), val | LP_OUTPUT_HOLD);
 		usleep_range(1000, 1500);
 
 		I915_WRITE(MIPI_DEVICE_READY(port), ULPS_STATE_EXIT);
-- 
1.7.9.5