[RFC/RFT PATCH 6/7] gpio: omap: clean up omap_gpio_irq_type

[Grygorii Strashko <grygorii.strashko@xxxxxxxxxx>]

The omap_gpio_irq_type() can do only configuration of GPIO IRQ
triggering type, because now OMAP GPIO driver has implemented
.irq_startup()/.irq_shutdown() which are responsible for
GPIO bank enabling and pin direction configuration.

Hence, remove redundant code and omap_gpio_init_irq() which is
not used any more.

Signed-off-by: Grygorii Strashko <grygorii.strashko@xxxxxxxxxx>
---
 drivers/gpio/gpio-omap.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 1c226f1..f02b3fa 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -472,15 +472,6 @@ static int omap_gpio_is_input(struct gpio_bank *bank, unsigned offset)
 	return readl_relaxed(reg) & BIT(offset);
 }
 
-static void omap_gpio_init_irq(struct gpio_bank *bank, unsigned offset)
-{
-	if (!LINE_USED(bank->mod_usage, offset)) {
-		omap_enable_gpio_module(bank, offset);
-		omap_set_gpio_direction(bank, offset, 1);
-	}
-	bank->irq_usage |= BIT(offset);
-}
-
 static int omap_gpio_irq_type(struct irq_data *d, unsigned type)
 {
 	struct gpio_bank *bank = omap_irq_data_get_bank(d);
@@ -502,12 +493,6 @@ static int omap_gpio_irq_type(struct irq_data *d, unsigned type)
 	retval = omap_set_gpio_triggering(bank, offset, type);
 	if (retval)
 		goto error;
-	omap_gpio_init_irq(bank, offset);
-	if (!omap_gpio_is_input(bank, offset)) {
-		spin_unlock_irqrestore(&bank->lock, flags);
-		retval = -EINVAL;
-		goto error;
-	}
 	spin_unlock_irqrestore(&bank->lock, flags);
 
 	if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
-- 
1.9.1

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