IO Daisychain has to be enabled only if the corresponding omap has
io chain wake up capability.
Signed-off-by: Vishwanath BS <vishwanath.bs@xxxxxx>
Tested-by: Govindraj.R <govindraj.raja@xxxxxx>
---
arch/arm/mach-omap2/prm2xxx_3xxx.c | 26 ++++++++++++++------------
1 files changed, 14 insertions(+), 12 deletions(-)
diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.c b/arch/arm/mach-omap2/prm2xxx_3xxx.c
index 688e74c..712ce02 100644
--- a/arch/arm/mach-omap2/prm2xxx_3xxx.c
+++ b/arch/arm/mach-omap2/prm2xxx_3xxx.c
@@ -238,18 +238,20 @@ void omap3_trigger_wuclk_ctrl(void)
{
int i = 0;
- omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_CHAIN_MASK, WKUP_MOD,
- PM_WKEN);
- /* Do a readback to assure write has been done */
- omap2_prm_read_mod_reg(WKUP_MOD, PM_WKEN);
-
- omap_test_timeout(
- (((omap2_prm_read_mod_reg(WKUP_MOD, PM_WKST) &
- OMAP3430_ST_IO_CHAIN_MASK) == 1)),
- MAX_IOPAD_LATCH_TIME, i);
-
- omap2_prm_clear_mod_reg_bits(OMAP3430_EN_IO_CHAIN_MASK, WKUP_MOD,
- PM_WKEN);
+ if (omap3_has_io_chain_ctrl()) {
+ omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_CHAIN_MASK, WKUP_MOD,
+ PM_WKEN);
+ /* Do a readback to assure write has been done */
+ omap2_prm_read_mod_reg(WKUP_MOD, PM_WKEN);
+
+ omap_test_timeout(
+ (((omap2_prm_read_mod_reg(WKUP_MOD, PM_WKST) &
+ OMAP3430_ST_IO_CHAIN_MASK) == 1)),
+ MAX_IOPAD_LATCH_TIME, i);
+
+ omap2_prm_clear_mod_reg_bits(OMAP3430_EN_IO_CHAIN_MASK, WKUP_MOD,
+ PM_WKEN);
+ }
}
static int __init omap3xxx_prcm_init(void)
--
1.7.0.4
--
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