diff options
Diffstat (limited to 'drivers/gpio/gpio-mxc.c')
| -rw-r--r-- | drivers/gpio/gpio-mxc.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c index 82f7b65baf7..e7914763457 100644 --- a/drivers/gpio/gpio-mxc.c +++ b/drivers/gpio/gpio-mxc.c @@ -29,9 +29,12 @@ #include <linux/basic_mmio_gpio.h> #include <linux/of.h> #include <linux/of_device.h> +#include <linux/module.h> #include <asm-generic/bug.h> #include <asm/mach/irq.h> +#define irq_to_gpio(irq) ((irq) - MXC_GPIO_IRQ_START) + enum mxc_gpio_hwtype { IMX1_GPIO, /* runs on i.mx1 */ IMX21_GPIO, /* runs on i.mx21 and i.mx27 */ @@ -343,6 +346,15 @@ 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; @@ -409,6 +421,7 @@ 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); |