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From 4c68660aa69a5eaeaff7fda7e2297e2d31de0333 Mon Sep 17 00:00:00 2001
From: Thara Gopinath <thara@ti.com>
Date: Fri, 2 Jul 2010 13:06:57 +0530
Subject: [PATCH 13/20] OMAP: Disable smartreflex across DVFS
This patch disables smartreflex for a particular voltage
domain when the the voltage domain and the devices belonging
to it is being scaled and re-enables it back once the scaling
is done.
Signed-off-by: Thara Gopinath <thara@ti.com>
---
arch/arm/mach-omap2/voltage.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/voltage.c b/arch/arm/mach-omap2/voltage.c
index c83d968..2f331de 100644
--- a/arch/arm/mach-omap2/voltage.c
+++ b/arch/arm/mach-omap2/voltage.c
@@ -32,6 +32,7 @@
#include <plat/common.h>
#include <plat/voltage.h>
#include <plat/omap_device.h>
+#include <plat/smartreflex.h>
#include "prm-regbits-34xx.h"
#include "prm-regbits-44xx.h"
@@ -1806,6 +1807,9 @@ int omap_voltage_scale(struct voltagedomain *voltdm, unsigned long volt)
return -EINVAL;
}
+ /* Disable smartreflex module across voltage and frequency scaling */
+ omap_sr_disable(voltdm);
+
if (curr_volt == volt) {
is_volt_scaled = 1;
} else if (curr_volt < volt) {
@@ -1840,6 +1844,9 @@ int omap_voltage_scale(struct voltagedomain *voltdm, unsigned long volt)
mutex_unlock(&vdd->scaling_mutex);
+ /* Enable Smartreflex module */
+ omap_sr_enable(voltdm);
+
/* Scale dependent vdds */
scale_dep_vdd(vdd);
--
1.6.6.1
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