From: Vandana Kannan <vandana.kannan@xxxxxxxxx>
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@xxxxxxxxx>
Cc: Satheeshakrishna M <satheeshakrishna.m@xxxxxxxxx>
Cc: Damien Lespiau <damien.lespiau@xxxxxxxxx>
Signed-off-by: Vandana Kannan <vandana.kannan@xxxxxxxxx>
Signed-off-by: Damien Lespiau <damien.lespiau@xxxxxxxxx> (v1)
---
drivers/gpu/drm/i915/intel_ddi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 8aee7d7..e24cd6f 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;
--
2.1.0
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