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authorVandana Kannan <vandana.kannan@intel.com>2015-03-27 15:19:09 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2015-04-09 16:57:52 +0300
commit3449ca859a2ea8466b58794b256892508ea0c1b0 (patch)
tree4479eb20ca132e30919bc00283633cd4df18e17d
parent6c74c87f7cc94e71960e5a1044c1b26f68f7d3c8 (diff)
downloadlinux-3449ca859a2ea8466b58794b256892508ea0c1b0.tar.xz
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: Satheeshakrishna M <satheeshakrishna.m@intel.com> Cc: Satheeshakrishna M <satheeshakrishna.m@intel.com> Cc: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Vandana Kannan <vandana.kannan@intel.com> Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> (v1) Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
-rw-r--r--drivers/gpu/drm/i915/intel_ddi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 47b9307da24b..1c9d439e864a 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -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;