[PATCH v9 25/31] gpio/omap: handle set_dataout reg capable IP on restore

[Tarun Kanti DebBarma]

From: Nishanth Menon <nm at ti.com>

GPIO IP revisions such as those used in OMAP4 have a set_dataout
while the previous revisions used a single dataout register.
Depending on what is available restore the dataout settings
to the right register.

Signed-off-by: Nishanth Menon <nm at ti.com>
Signed-off-by: Tarun Kanti DebBarma <tarun.kanti at ti.com>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar at ti.com>
---
 drivers/gpio/gpio-omap.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index bbc4fda..a967126 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -1372,7 +1372,12 @@ static void omap_gpio_restore_context(struct gpio_bank *bank)
 				bank->base + bank->regs->risingdetect);
 	__raw_writel(bank->context.fallingdetect,
 				bank->base + bank->regs->fallingdetect);
-	__raw_writel(bank->context.dataout, bank->base + bank->regs->dataout);
+	if (bank->regs->set_dataout && bank->regs->clr_dataout)
+		__raw_writel(bank->context.dataout,
+				bank->base + bank->regs->set_dataout);
+	else
+		__raw_writel(bank->context.dataout,
+				bank->base + bank->regs->dataout);
 	__raw_writel(bank->context.oe, bank->base + bank->regs->direction);
 
 	if (bank->dbck_enable_mask) {
-- 
1.7.0.4