[RFC 08/30] drm/i915: don't sleep after selecting the DDI pipe clock

From: Paulo Zanoni <przanoni@gmail.com>
To: intel-gfx@lists.freedesktop.org
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Subject: [RFC 08/30] drm/i915: don't sleep after selecting the DDI pipe clock
Date: Tue, 28 Aug 2012 19:06:39 -0300	[thread overview]
Message-ID: <1346191621-12996-9-git-send-email-przanoni@gmail.com> (raw)
In-Reply-To: <1346191621-12996-1-git-send-email-przanoni@gmail.com>

From: Paulo Zanoni <paulo.r.zanoni@intel.com>

This is not needed. This sleep is probably here due to the many code
changes that happened to the old intel_ddi_mode_set. We should sleep
20us after turning the PLLs on, and this is already implemented.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 drivers/gpu/drm/i915/intel_ddi.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 208f13f..33b3a75 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -782,8 +782,6 @@ static void intel_ddi_enable_pipe(struct intel_encoder *intel_encoder,
 
 	I915_WRITE(PIPE_CLK_SEL(pipe), PIPE_CLK_SEL_PORT(port));
 
-	udelay(20);
-
 	func_val = PIPE_DDI_FUNC_ENABLE | PIPE_DDI_SELECT_PORT(port);
 	msa_val = PIPE_MSA_SYNC_CLK;
 
-- 
1.7.11.2
