From: Gaurav K Singh Date: Sun, 7 Dec 2014 10:43:54 +0000 (+0530) Subject: drm/i915: Enable MIPI PHY transparent latch for DSI Port C X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bf344e8090110a70bd630563e1324b103bdfecb2;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git drm/i915: Enable MIPI PHY transparent latch for DSI Port C Common bit to be used for both DSI Port A & DSI Port C. Signed-off-by: Gaurav K Singh Reviewed-by: Jani Nikula Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index 8f8b952eaa92..215d00429b04 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);