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@xxxxxx>
---
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 67748b0..6f85f75 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 "prm44xx.h"
@@ -1828,6 +1829,9 @@ 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) {
@@ -1865,6 +1869,9 @@ 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);
--
1.7.0.4
--
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