From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 3 Mar 2014 14:09:36 +0000 (+0000)
Subject: drm/i2c: tda998x: faster polling for edid
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=713456db179356c6b32a50ea1910fc509615c457;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

drm/i2c: tda998x: faster polling for edid

One of Jean-Francois patches changed the EDID polling to once every
10ms for 10 interations, whereas the original code did 1ms for 100
interations.  This appears to cause boot-time detection to take
noticably longer.  Revert this change.

Acked-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index b98c969aeffa..3ff7d0713bfb 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -1048,8 +1048,8 @@ read_edid_block(struct drm_encoder *encoder, uint8_t *buf, int blk)
 			return i;
 		}
 	} else {
-		for (i = 10; i > 0; i--) {
-			msleep(10);
+		for (i = 100; i > 0; i--) {
+			msleep(1);
 			ret = reg_read(priv, REG_INT_FLAGS_2);
 			if (ret < 0)
 				return ret;