[PATCH v6 20/25] gpio/omap: skip operations in runtime callbacks

[Tarun Kanti DebBarma]

Most operations within runtime callbacks should be skipped when
*_runtime_get_sync() and *_runtime_put_sync() are called in probe(),
*_gpio_request() and *_gpio_free(). We just need clock enable/disable.

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 |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 9d68b15..67c5a96 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -1136,6 +1136,9 @@ static int omap_gpio_runtime_suspend(struct device *dev)
 	for (j = 0; j < hweight_long(bank->dbck_enable_mask); j++)
 		clk_disable(bank->dbck);
 
+	if (!bank->mod_usage)
+		return 0;
+
 	/*
 	 * If going to OFF, remove triggering for all
 	 * non-wakeup GPIOs.  Otherwise spurious IRQs will be
@@ -1177,6 +1180,9 @@ static int omap_gpio_runtime_resume(struct device *dev)
 	for (j = 0; j < hweight_long(bank->dbck_enable_mask); j++)
 		clk_enable(bank->dbck);
 
+	if (!bank->mod_usage)
+		return 0;
+
 	if (bank->get_context_loss_count) {
 		context_lost_cnt_after =
 			bank->get_context_loss_count(bank->dev);
-- 
1.7.0.4