From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Mon, 25 Jul 2011 05:18:44 +0000 (+1000)
Subject: gma500: udelay(20000) it too long again
X-Git-Tag: firefly_0821_release~3680^2~4913
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=243dd2809a5edd2e0e3e62781083aa44049af37d;p=firefly-linux-kernel-4.4.55.git

gma500: udelay(20000) it too long again

so replace it with mdelay(20).

Fixes build error:

  ERROR: "__bad_udelay" [drivers/staging/gma500/psb_gfx.ko] undefined!

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/staging/gma500/mrst_hdmi.c b/drivers/staging/gma500/mrst_hdmi.c
index d6a517971ba8..e66607eb3d3e 100644
--- a/drivers/staging/gma500/mrst_hdmi.c
+++ b/drivers/staging/gma500/mrst_hdmi.c
@@ -129,7 +129,7 @@ static void wait_for_vblank(struct drm_device *dev)
 {
 	/* FIXME: Can we do this as a sleep ? */
 	/* Wait for 20ms, i.e. one cycle at 50hz. */
-	udelay(20000);
+	mdelay(20);
 }
 
 static void scu_busy_loop(void *scu_base)