Merge commit 'v2.6.32-rc6' into next

1 files changed, 23 insertions, 9 deletions

diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index f7ebed942f66..b4357c388d2e 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -206,7 +206,6 @@ static void ep93xx_gpio_ab_irq_handler(unsigned int irq, struct irq_desc *desc)
         for (i = 0; i < 8; i++) {
                 if (status & (1 << i)) {
                         int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_B(0)) + i;
-                        desc = irq_desc + gpio_irq;
                         generic_handle_irq(gpio_irq);
                 }
         }
@@ -550,13 +549,11 @@ void __init ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr)
         platform_device_register(&ep93xx_eth_device);
 }
 
-static struct i2c_gpio_platform_data ep93xx_i2c_data = {
-        .sda_pin                = EP93XX_GPIO_LINE_EEDAT,
-        .sda_is_open_drain      = 0,
-        .scl_pin                = EP93XX_GPIO_LINE_EECLK,
-        .scl_is_open_drain      = 0,
-        .udelay                 = 2,
-};
+
+/*************************************************************************
+ * EP93xx i2c peripheral handling
+ *************************************************************************/
+static struct i2c_gpio_platform_data ep93xx_i2c_data;
 
 static struct platform_device ep93xx_i2c_device = {
         .name                   = "i2c-gpio",
@@ -564,8 +561,25 @@ static struct platform_device ep93xx_i2c_device = {
         .dev.platform_data      = &ep93xx_i2c_data,
 };
 
-void __init ep93xx_register_i2c(struct i2c_board_info *devices, int num)
+void __init ep93xx_register_i2c(struct i2c_gpio_platform_data *data,
+                                struct i2c_board_info *devices, int num)
 {
+        /*
+         * Set the EEPROM interface pin drive type control.
+         * Defines the driver type for the EECLK and EEDAT pins as either
+         * open drain, which will require an external pull-up, or a normal
+         * CMOS driver.
+         */
+        if (data->sda_is_open_drain && data->sda_pin != EP93XX_GPIO_LINE_EEDAT)
+                pr_warning("ep93xx: sda != EEDAT, open drain has no effect\n");
+        if (data->scl_is_open_drain && data->scl_pin != EP93XX_GPIO_LINE_EECLK)
+                pr_warning("ep93xx: scl != EECLK, open drain has no effect\n");
+
+        __raw_writel((data->sda_is_open_drain << 1) |
+                     (data->scl_is_open_drain << 0),
+                     EP93XX_GPIO_EEDRIVE);
+
+        ep93xx_i2c_data = *data;
         i2c_register_board_info(0, devices, num);
         platform_device_register(&ep93xx_i2c_device);
 }