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gpio/mxc: add .to_irq for gpio chip 

It adds .to_irq support for gpio chip, so that __gpio_to_irq in
gpiolib becomes usable.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
hifive-unleashed-5.1
Shawn Guo 2011-08-14 00:14:02 +08:00 committed by Sascha Hauer
parent e309fb1864
commit 09ad8039da
1 changed files with 10 additions and 0 deletions
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10
drivers/gpio/gpio-mxc.c
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@ -337,6 +337,15 @@ static void __devinit mxc_gpio_get_hw(struct platform_device *pdev)
mxc_gpio_hwtype = hwtype;
}
static int mxc_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
struct bgpio_chip *bgc = to_bgpio_chip(gc);
struct mxc_gpio_port *port =
container_of(bgc, struct mxc_gpio_port, bgc);
return port->virtual_irq_start + offset;
}
static int __devinit mxc_gpio_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@ -403,6 +412,7 @@ static int __devinit mxc_gpio_probe(struct platform_device *pdev)
if (err)
goto out_iounmap;
port->bgc.gc.to_irq = mxc_gpio_to_irq;
port->bgc.gc.base = pdev->id * 32;
port->bgc.dir = port->bgc.read_reg(port->bgc.reg_dir);
port->bgc.data = port->bgc.read_reg(port->bgc.reg_set);