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@@ -28,6 +28,7 @@
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#include <linux/clockchips.h>
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#include <linux/io.h>
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#include <linux/export.h>
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+#include <linux/gpio.h>
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#include <mach/udc.h>
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#include <mach/hardware.h>
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@@ -107,7 +108,7 @@ static signed char irq2gpio[32] = {
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7, 8, 9, 10, 11, 12, -1, -1,
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};
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-int gpio_to_irq(int gpio)
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+static int ixp4xx_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
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{
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int irq;
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@@ -117,7 +118,6 @@ int gpio_to_irq(int gpio)
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}
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return -EINVAL;
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}
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-EXPORT_SYMBOL(gpio_to_irq);
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int irq_to_gpio(unsigned int irq)
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{
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@@ -383,12 +383,56 @@ static struct platform_device *ixp46x_devices[] __initdata = {
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unsigned long ixp4xx_exp_bus_size;
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EXPORT_SYMBOL(ixp4xx_exp_bus_size);
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+static int ixp4xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
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+{
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+ gpio_line_config(gpio, IXP4XX_GPIO_IN);
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+
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+ return 0;
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+}
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+
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+static int ixp4xx_gpio_direction_output(struct gpio_chip *chip, unsigned gpio,
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+ int level)
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+{
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+ gpio_line_set(gpio, level);
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+ gpio_line_config(gpio, IXP4XX_GPIO_OUT);
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+
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+ return 0;
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+}
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+
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+static int ixp4xx_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
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+{
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+ int value;
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+
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+ gpio_line_get(gpio, &value);
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+
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+ return value;
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+}
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+
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+static void ixp4xx_gpio_set_value(struct gpio_chip *chip, unsigned gpio,
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+ int value)
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+{
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+ gpio_line_set(gpio, value);
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+}
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+
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+static struct gpio_chip ixp4xx_gpio_chip = {
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+ .label = "IXP4XX_GPIO_CHIP",
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+ .direction_input = ixp4xx_gpio_direction_input,
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+ .direction_output = ixp4xx_gpio_direction_output,
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+ .get = ixp4xx_gpio_get_value,
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+ .set = ixp4xx_gpio_set_value,
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+ .to_irq = ixp4xx_gpio_to_irq,
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+ .base = 0,
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+ .ngpio = 16,
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+};
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+
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void __init ixp4xx_sys_init(void)
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{
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ixp4xx_exp_bus_size = SZ_16M;
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platform_add_devices(ixp4xx_devices, ARRAY_SIZE(ixp4xx_devices));
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+ gpiochip_add(&ixp4xx_gpio_chip);
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+
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if (cpu_is_ixp46x()) {
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int region;
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