[PATCH 2/2] omap_twl: Prevent SR to enable for am3517/am3505 devices

[Abhilash K V]

From: Vaibhav Hiremath <hvaibhav at ti.com>

In case of AM3517 & AM3505, Smart Reflex is not applicable so
we must not enable it. So add check for am3517/05 cpu revision
in omap3_twl_init() and return -ENODEV if true, else continue.

Signed-off-by: Vaibhav Hiremath <hvaibhav at ti.com>
Signed-off-by: Abhilash K V <abhilash.kv at ti.com>
---
 arch/arm/mach-omap2/omap_twl.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_twl.c b/arch/arm/mach-omap2/omap_twl.c
index 07d6140..92fadcb 100644
--- a/arch/arm/mach-omap2/omap_twl.c
+++ b/arch/arm/mach-omap2/omap_twl.c
@@ -269,6 +269,14 @@ int __init omap3_twl_init(void)
 	if (!cpu_is_omap34xx())
 		return -ENODEV;
 
+	/*
+	 * In case of AM3517/AM3505 we should not be going down
+	 * further, since SR is not applicable there.
+	 */
+	if (cpu_is_omap3505() || cpu_is_omap3517()) {
+		return -ENODEV;
+	}
+
 	if (cpu_is_omap3630()) {
 		omap3_mpu_volt_info.vp_vddmin = OMAP3630_VP1_VLIMITTO_VDDMIN;
 		omap3_mpu_volt_info.vp_vddmax = OMAP3630_VP1_VLIMITTO_VDDMAX;
-- 
1.7.1