ARM: iPAQ: provide a way to setup platform-controlled GPIOs (0831e3e4) · Commits · e / devices / android_kernel_oneplus_sm8150

arch/arm/mach-sa1100/h3600.c

+42 −0

Original line number	Original line	Diff line number	Diff line
	@@ -28,6 +28,7 @@
	#include <linux/mtd/mtd.h>		#include <linux/mtd/mtd.h>
	#include <linux/mtd/partitions.h>		#include <linux/mtd/partitions.h>
	#include <linux/serial_core.h>		#include <linux/serial_core.h>
			#include <linux/gpio.h>

	#include <asm/irq.h>		#include <asm/irq.h>
	#include <mach/hardware.h>		#include <mach/hardware.h>
	@@ -49,6 +50,47 @@
	void (*assign_h3600_egpio)(enum ipaq_egpio_type x, int level);		void (*assign_h3600_egpio)(enum ipaq_egpio_type x, int level);
	EXPORT_SYMBOL(assign_h3600_egpio);		EXPORT_SYMBOL(assign_h3600_egpio);

			struct gpio_default_state {
			int gpio;
			int mode;
			const char *name;
			};

			#define GPIO_MODE_IN -1
			#define GPIO_MODE_OUT0 0
			#define GPIO_MODE_OUT1 1

			static void h3xxx_init_gpio(struct gpio_default_state *s, size_t n)
			{
			while (n--) {
			const char *name = s->name;
			int err;

			if (!name)
			name = "[init]";
			err = gpio_request(s->gpio, name);
			if (err) {
			printk(KERN_ERR "gpio%u: unable to request: %d\n",
			s->gpio, err);
			continue;
			}
			if (s->mode >= 0) {
			err = gpio_direction_output(s->gpio, s->mode);
			} else {
			err = gpio_direction_input(s->gpio);
			}
			if (err) {
			printk(KERN_ERR "gpio%u: unable to set direction: %d\n",
			s->gpio, err);
			continue;
			}
			if (!s->name)
			gpio_free(s->gpio);
			s++;
			}
			}


	static struct mtd_partition h3xxx_partitions[] = {		static struct mtd_partition h3xxx_partitions[] = {
	{		{
	.name = "H3XXX boot firmware",		.name = "H3XXX boot firmware",