GPT12 is in the WKUP powerdomain and can be useful as the system timer
and thus a wakeup source for sleep while idle.

Signed-off-by: Kevin Hilman <[email protected]>
---
 arch/arm/mach-omap2/pm34xx.c      |    6 ++++--
 arch/arm/mach-omap2/prcm-common.h |    2 ++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index bd74183..8e3c257 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -505,10 +505,12 @@ static void __init prcm_setup_regs(void)
                             OMAP3_PRM_CLKSRC_CTRL_OFFSET);
 
        /* setup wakup source */
-       prm_write_mod_reg(OMAP3430_EN_IO | OMAP3430_EN_GPIO1 | OMAP3430_EN_GPT1,
+       prm_write_mod_reg(OMAP3430_EN_IO | OMAP3430_EN_GPIO1 |
+                         OMAP3430_EN_GPT1 | OMAP3430_EN_GPT12,
                          WKUP_MOD, PM_WKEN);
        /* No need to write EN_IO, that is always enabled */
-       prm_write_mod_reg(OMAP3430_EN_GPIO1 | OMAP3430_EN_GPT1,
+       prm_write_mod_reg(OMAP3430_EN_GPIO1 | OMAP3430_EN_GPT1 |
+                         OMAP3430_EN_GPT12,
                          WKUP_MOD, OMAP3430_PM_MPUGRPSEL);
        /* For some reason IO doesn't generate wakeup event even if
         * it is selected to mpu wakeup goup */
diff --git a/arch/arm/mach-omap2/prcm-common.h 
b/arch/arm/mach-omap2/prcm-common.h
index 812d50e..cb1ae84 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -276,6 +276,8 @@
 /* CM_FCLKEN_WKUP, CM_ICLKEN_WKUP, PM_WKEN_WKUP shared bits */
 #define OMAP3430_EN_GPIO1                              (1 << 3)
 #define OMAP3430_EN_GPIO1_SHIFT                                3
+#define OMAP3430_EN_GPT12                              (1 << 1)
+#define OMAP3430_EN_GPT12_SHIFT                                1
 #define OMAP3430_EN_GPT1                               (1 << 0)
 #define OMAP3430_EN_GPT1_SHIFT                         0
 
-- 
1.6.0.3

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