gpiodev - ARM PXA implementation
RFC PATCH 2/3 gpiodev - ARM PXA implementation
Hello linux-arm-kernel,
GPIODEV API: Support for ARM PXA2xx CPU. Implementation is based on Generic GPIO API. Generally, GPIODEV implementation should be provided by device driver. But CPU-builtin devices in the current code are treated is special manner ("arch devices"), so this approach is followed for GPIODEV too.
Signed-off-by Paul Sokolovsky <[email protected]>
Index: arch/arm/mach-pxa/generic.c
===================================================================
RCS file: /cvs/linux/kernel26/arch/arm/mach-pxa/generic.c,v retrieving revision 1.39
retrieving revision 1.41
arm/mach-pxa/generic.c 10 Apr 2007 15:35:33 -0000 1.41 renamed from arm/mach-pxa/generic.c 24 Feb 2007 13:14:41 -0000 1.39 +37 -0
@@ -24,6 +24,7 @@ #include <linux/ioport.h> #include <linux/pm.h> #include <linux/string.h> +#include <linux/gpiodev.h> #include <linux/sched.h> #include <asm/cnt32_to_63.h>
@@ -530,6 +531,41 @@ .id = -1, }; + +static int pxa_gpiodev_get_value(struct device *dev, int gpio) +{ + return __gpio_get_value(gpio); +} + +static void pxa_gpiodev_set_value(struct device *dev, int gpio, int value) +{ + __gpio_set_value(gpio, value); +} + +static int pxa_gpiodev_to_irq(struct device *dev, int gpio) +{ + return IRQ_GPIO(gpio); +} + + +struct pxagpio_platform_data { + struct gpiodev_ops gpiodev_ops; +} pxagpio_platform_data = { + .gpiodev_ops = { + .get = pxa_gpiodev_get_value, + .set = pxa_gpiodev_set_value, + .to_irq = pxa_gpiodev_to_irq, + } +}; + +struct platform_device pxagpio_device = { + .name = "pxa2xx-gpio", + .id = -1, + .dev = { + .platform_data = &pxagpio_platform_data + } +}; + static struct platform_device *devices[] __initdata = { &pxamci_device, &udc_device,
@@ -541,6 +580,7 @@ &i2c_device, &i2s_device, &pxartc_device, + &pxagpio_device, }; static int __init pxa_init(void)
Signature · 2 lines
Best regards, Paul mailto:[email protected]