linux-kernel - [PATCH 3/3] mfd: tps6586x: implement gpio_to

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Date:	Mon, 8 Oct 2012 21:43:25 +0530
From:	Laxman Dewangan <ldewangan@...dia.com>
To:	<sameo@...ux.intel.com>, <grant.likely@...retlab.ca>,
	<linus.walleij@...aro.org>
CC:	<broonie@...nsource.wolfsonmicro.com>, <swarren@...dia.com>,
	<linux-kernel@...r.kernel.org>,
	Laxman Dewangan <ldewangan@...dia.com>
Subject: [PATCH 3/3] mfd: tps6586x: implement gpio_to_irq

The TPS6586x adds the interrupt of this device using
linear mapping on irq domain.
Hence, implement gpio_to_irq to get the irq number
corresponding to TPS6586x GPIOs which is created
dynamically.

Signed-off-by: Laxman Dewangan <ldewangan@...dia.com>
---
 drivers/gpio/gpio-tps6586x.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/drivers/gpio/gpio-tps6586x.c b/drivers/gpio/gpio-tps6586x.c
index 2526b3b..62e9e1c 100644
--- a/drivers/gpio/gpio-tps6586x.c
+++ b/drivers/gpio/gpio-tps6586x.c
@@ -80,6 +80,14 @@ static int tps6586x_gpio_output(struct gpio_chip *gc, unsigned offset,
 				val, mask);
 }
 
+static int tps6586x_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
+{
+	struct tps6586x_gpio *tps6586x_gpio = to_tps6586x_gpio(gc);
+
+	return tps6586x_irq_get_virq(tps6586x_gpio->parent,
+				TPS6586X_INT_PLDO_0 + offset);
+}
+
 static int __devinit tps6586x_gpio_probe(struct platform_device *pdev)
 {
 	struct tps6586x_platform_data *pdata;
@@ -106,6 +114,7 @@ static int __devinit tps6586x_gpio_probe(struct platform_device *pdev)
 	tps6586x_gpio->gpio_chip.direction_output = tps6586x_gpio_output;
 	tps6586x_gpio->gpio_chip.set	= tps6586x_gpio_set;
 	tps6586x_gpio->gpio_chip.get	= tps6586x_gpio_get;
+	tps6586x_gpio->gpio_chip.to_irq	= tps6586x_gpio_to_irq;
 
 #ifdef CONFIG_OF_GPIO
 	tps6586x_gpio->gpio_chip.of_node = pdev->dev.parent->of_node;
-- 
1.7.1.1

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