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From d0bc6c5baae3a711f5039ea5440bafb37ebdfc24 Mon Sep 17 00:00:00 2001
From: Balaji Rao <balajirrao@openmoko.org>
Date: Wed, 28 Jan 2009 19:30:45 +0000
Subject: [PATCH 6/8] Subject: fix_glamo_xrandr_bug.patch
fix_glamo_xrandr_bug.patch
This patch reintroduces the 2-cycle delay used when accessing glamo-fb
registers. This seems to be required even when the corresponding
registers in HOST_BUS are off.
Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
---
drivers/mfd/glamo/glamo-fb.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/mfd/glamo/glamo-fb.c b/drivers/mfd/glamo/glamo-fb.c
index 64fe464..91cf75b 100644
--- a/drivers/mfd/glamo/glamo-fb.c
+++ b/drivers/mfd/glamo/glamo-fb.c
@@ -86,12 +86,22 @@ static struct platform_device glamo_spi_dev = {
static int reg_read(struct glamofb_handle *glamo,
u_int16_t reg)
{
+ int i = 0;
+
+ for (i = 0; i != 2; i ++)
+ nop();
+
return readw(glamo->base + reg);
}
static void reg_write(struct glamofb_handle *glamo,
u_int16_t reg, u_int16_t val)
{
+ int i = 0;
+
+ for (i = 0; i != 2; i ++)
+ nop();
+
writew(val, glamo->base + reg);
}
--
1.5.2.2
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