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