linux-kernel - [PATCH v2] gpio/davinci: add interrupt support for GPIOs 16-31

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Date:	Thu, 2 Jul 2015 14:31:30 -0400
From:	Vitaly Andrianov <vitalya@...com>
To:	<linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<gnurou@...il.com>, <linus.walleij@...aro.org>, <nsekhar@...com>,
	<grygorii.strashko@...com>, <m-karicheri2@...com>
CC:	Vitaly Andrianov <vitalya@...com>
Subject: [PATCH v2] gpio/davinci: add interrupt support for GPIOs 16-31

Interrupts for GPIOs 16 through 31 are enabled by bit 1 in the
"binten" register (offset 8). Previous versions of GPIO only
used bit 0, which enables GPIO 0-15 interrupts.

Signed-off-by: Vitaly Andrianov <vitalya@...com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@...com>
---
History

v2.
- use GENMASK to set binten. Thanks to Nori Sekhar's.

 drivers/gpio/gpio-davinci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index c5e05c8..86cfe18 100644
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -545,7 +545,7 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev)
 		chips[0].chip.to_irq = gpio_to_irq_unbanked;
 		chips[0].gpio_irq = bank_irq;
 		chips[0].gpio_unbanked = pdata->gpio_unbanked;
-		binten = BIT(0);
+		binten = GENMASK(pdata->gpio_unbanked / 16, 0);
 
 		/* AINTC handles mask/unmask; GPIO handles triggering */
 		irq = bank_irq;
-- 
1.8.3.2

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