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Commit 3449ca85 authored by Vandana Kannan's avatar Vandana Kannan Committed by Daniel Vetter
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drm/i915/bxt: Increase DDI buf idle timeout 



For BXT, DDI buf idle timeout delay needs to be increased to 16us.

Since this is a timeout value and we return as soon as the condition is
realized, no penalty incurred for other platforms.

v2:
- remove TIMEOUT macro used only at a single place (Daniel)

Suggested-by: default avatarSatheeshakrishna M <satheeshakrishna.m@intel.com>
Cc: Satheeshakrishna M <satheeshakrishna.m@intel.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: default avatarVandana Kannan <vandana.kannan@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> (v1)
Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 6c74c87f

drivers/gpu/drm/i915/intel_ddi.c

+1 −1
Original line number Diff line number Diff line
@@ -322,7 +322,7 @@ static void intel_wait_ddi_buf_idle(struct drm_i915_private *dev_priv, 
	uint32_t reg = DDI_BUF_CTL(port);

	int i;



	for (i = 0; i < 8; i++) {

	for (i = 0; i < 16; i++) {

		udelay(1);

		if (I915_READ(reg) & DDI_BUF_IS_IDLE)

			return;