0001-ARM-OMAP2-am33xx-hwmod-Fix-register-offset-NULL-chec.patch

From e0328e20d13e49d28634424387ab69f98b6da53e Mon Sep 17 00:00:00 2001
From: "Hebbar, Gururaja" <gururaja.hebbar@ti.com>
Date: Wed, 30 Jan 2013 14:39:20 +0000
Subject: [PATCH 1/4] ARM: OMAP2: am33xx-hwmod: Fix "register offset NULL
 check" bug

am33xx_cm_wait_module_ready() checks if register offset is NULL.

int am33xx_cm_wait_module_ready(u16 inst, s16 cdoffs, u16 clkctrl_offs)
{
	int i = 0;

	if (!clkctrl_offs)
		return 0;

In case of AM33xx, CLKCTRL register offset for different clock domains
are not uniformly placed. An example of this would be the RTC clock
domain with CLKCTRL offset at 0x00.
In such cases the module ready check is skipped which leads to a data
abort during boot-up when RTC registers is accessed.

Remove this check here to avoid checking module readiness for modules
with clkctrl register offset at 0x00.

Signed-off-by: Hebbar Gururaja <gururaja.hebbar@ti.com>
---
 arch/arm/mach-omap2/cm33xx.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/arm/mach-omap2/cm33xx.c b/arch/arm/mach-omap2/cm33xx.c
index 058ce3c..325a515 100644
--- a/arch/arm/mach-omap2/cm33xx.c
+++ b/arch/arm/mach-omap2/cm33xx.c
@@ -241,9 +241,6 @@ int am33xx_cm_wait_module_ready(u16 inst, s16 cdoffs, u16 clkctrl_offs)
 {
 	int i = 0;
 
-	if (!clkctrl_offs)
-		return 0;
-
 	omap_test_timeout(_is_module_ready(inst, cdoffs, clkctrl_offs),
 			  MAX_MODULE_READY_TIME, i);
 
-- 
1.8.2.1