[Intel-gfx] [PATCH] drm/i915: s/mdelay/msleep/

[Daniel Vetter]

The first in wait_pipe_off is really just a delay loop to wait for the
scanline counter to settle (which takes about a frame worth of time).
So also shrink it a bit.

The other is in the ilk dprs code. If we need _exactly_ an 1ms wait in
there, that's already not guaranteed with the current code (since
especially at start-up we're likely to get scheduled away in between).
So replace those, too.

Noticed while trying to understand why we've again broken the panel
fitter.

Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/intel_display.c |    2 +-
 drivers/gpu/drm/i915/intel_pm.c      |    6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index b884932..908f697 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -990,7 +990,7 @@ void intel_wait_for_pipe_off(struct drm_device *dev, int pipe)
 		/* Wait for the display line to settle */
 		do {
 			last_line = I915_READ(reg) & line_mask;
-			mdelay(5);
+			msleep(1);
 		} while (((I915_READ(reg) & line_mask) != last_line) &&
 			 time_after(timeout, jiffies));
 		if (time_after(jiffies, timeout))
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 17f157a..986770e 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2380,7 +2380,7 @@ static void ironlake_enable_drps(struct drm_device *dev)
 
 	if (wait_for_atomic((I915_READ(MEMSWCTL) & MEMCTL_CMD_STS) == 0, 10))
 		DRM_ERROR("stuck trying to change perf mode\n");
-	mdelay(1);
+	msleep(1);
 
 	ironlake_set_drps(dev, fstart);
 
@@ -2411,10 +2411,10 @@ static void ironlake_disable_drps(struct drm_device *dev)
 
 	/* Go back to the starting frequency */
 	ironlake_set_drps(dev, dev_priv->ips.fstart);
-	mdelay(1);
+	msleep(1);
 	rgvswctl |= MEMCTL_CMD_STS;
 	I915_WRITE(MEMSWCTL, rgvswctl);
-	mdelay(1);
+	msleep(1);
 
 	spin_unlock_irq(&mchdev_lock);
 }
-- 
1.7.10.4