OMAP3: PM: Set/clear T2 bit for Smartreflex on TWL

Voltage control on TWL can be done using VMODE/I2C1/I2C_SR.
Since almost all platforms use I2C_SR on omap3, omap3_twl_init by
default expects that OMAP's I2C_SR is plugged in to TWL's I2C
and calls omap3_twl_set_sr_bit. On platforms where I2C_SR is not connected,
the board files are expected to call omap3_twl_set_sr_bit(false) to
ensure that I2C_SR path is not set for voltage control and prevent
the default behavior of omap3_twl_init.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Thara Gopinath <thara@ti.com>
Signed-off-by: Shweta Gulati <shweta.gulati@ti.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kevin Hilman <khilman@ti.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 1c1b0ab5b978..f4a5f716422b 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -127,6 +127,7 @@ static inline void omap_enable_smartreflex_on_init(void) {}
 #ifdef CONFIG_TWL4030_CORE
 extern int omap3_twl_init(void);
 extern int omap4_twl_init(void);
+extern int omap3_twl_set_sr_bit(bool enable);
 #else
 static inline int omap3_twl_init(void)
 {