Merge branch 'stable-3.2' into pandora-3.2

[pandora-kernel.git] / arch / arm / mach-ixp4xx / common.c

diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 0777257..7eeb623 100644 (file)
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -17,7 +17,6 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/serial.h>
-#include <linux/sched.h>
 #include <linux/tty.h>
 #include <linux/platform_device.h>
 #include <linux/serial_core.h>
@@ -28,6 +27,8 @@
 #include <linux/clocksource.h>
 #include <linux/clockchips.h>
 #include <linux/io.h>
+#include <linux/export.h>
+#include <linux/gpio.h>
 
 #include <mach/udc.h>
 #include <mach/hardware.h>
@@ -105,7 +106,7 @@ static signed char irq2gpio[32] = {
         7,  8,  9, 10, 11, 12, -1, -1,
 };
 
-int gpio_to_irq(int gpio)
+static int ixp4xx_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
 {
        int irq;
 
@@ -115,7 +116,6 @@ int gpio_to_irq(int gpio)
        }
        return -EINVAL;
 }
-EXPORT_SYMBOL(gpio_to_irq);
 
 int irq_to_gpio(unsigned int irq)
 {
@@ -375,12 +375,56 @@ static struct platform_device *ixp46x_devices[] __initdata = {
 unsigned long ixp4xx_exp_bus_size;
 EXPORT_SYMBOL(ixp4xx_exp_bus_size);
 
+static int ixp4xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
+{
+       gpio_line_config(gpio, IXP4XX_GPIO_IN);
+
+       return 0;
+}
+
+static int ixp4xx_gpio_direction_output(struct gpio_chip *chip, unsigned gpio,
+                                       int level)
+{
+       gpio_line_set(gpio, level);
+       gpio_line_config(gpio, IXP4XX_GPIO_OUT);
+
+       return 0;
+}
+
+static int ixp4xx_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
+{
+       int value;
+
+       gpio_line_get(gpio, &value);
+
+       return value;
+}
+
+static void ixp4xx_gpio_set_value(struct gpio_chip *chip, unsigned gpio,
+                                 int value)
+{
+       gpio_line_set(gpio, value);
+}
+
+static struct gpio_chip ixp4xx_gpio_chip = {
+       .label                  = "IXP4XX_GPIO_CHIP",
+       .direction_input        = ixp4xx_gpio_direction_input,
+       .direction_output       = ixp4xx_gpio_direction_output,
+       .get                    = ixp4xx_gpio_get_value,
+       .set                    = ixp4xx_gpio_set_value,
+       .to_irq                 = ixp4xx_gpio_to_irq,
+       .base                   = 0,
+       .ngpio                  = 16,
+};
+
 void __init ixp4xx_sys_init(void)
 {
        ixp4xx_exp_bus_size = SZ_16M;
 
        platform_add_devices(ixp4xx_devices, ARRAY_SIZE(ixp4xx_devices));
 
+       gpiochip_add(&ixp4xx_gpio_chip);
+
        if (cpu_is_ixp46x()) {
                int region;
 
@@ -402,18 +446,9 @@ void __init ixp4xx_sys_init(void)
 /*
  * sched_clock()
  */
-static DEFINE_CLOCK_DATA(cd);
-
-unsigned long long notrace sched_clock(void)
-{
-       u32 cyc = *IXP4XX_OSTS;
-       return cyc_to_sched_clock(&cd, cyc, (u32)~0);
-}
-
-static void notrace ixp4xx_update_sched_clock(void)
+static u32 notrace ixp4xx_read_sched_clock(void)
 {
-       u32 cyc = *IXP4XX_OSTS;
-       update_sched_clock(&cd, cyc, (u32)~0);
+       return *IXP4XX_OSTS;
 }
 
 /*
@@ -429,7 +464,7 @@ unsigned long ixp4xx_timer_freq = IXP4XX_TIMER_FREQ;
 EXPORT_SYMBOL(ixp4xx_timer_freq);
 static void __init ixp4xx_clocksource_init(void)
 {
-       init_sched_clock(&cd, ixp4xx_update_sched_clock, 32, ixp4xx_timer_freq);
+       setup_sched_clock(ixp4xx_read_sched_clock, 32, ixp4xx_timer_freq);
 
        clocksource_mmio_init(NULL, "OSTS", ixp4xx_timer_freq, 200, 32,
                        ixp4xx_clocksource_read);