omap: Fix i2c platform init code for omap4

Add separate omap_i2c_add_bus functions for mach-omap1
and mach-omap2. Make the mach-omap2 init set the interrupt
dynamically to support.

This is needed to add support for omap4 in a way that
works with multi-omap builds. This will eventually get
fixed in a generic way with the omap hwmods.

Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 47 insertions, 20 deletions

diff --git a/arch/arm/plat-omap/i2c.c b/arch/arm/plat-omap/i2c.c
index f044b5927508..78d1cea9118d 100644
--- a/arch/arm/plat-omap/i2c.c
+++ b/arch/arm/plat-omap/i2c.c
@@ -100,33 +100,44 @@ static int __init omap_i2c_nr_ports(void)
         return ports;
 }
 
-static int __init omap_i2c_add_bus(int bus_id)
+/* Shared between omap2 and 3 */
+static resource_size_t omap2_i2c_irq[3] __initdata = {
+        INT_24XX_I2C1_IRQ,
+        INT_24XX_I2C2_IRQ,
+        INT_34XX_I2C3_IRQ,
+};
+
+static inline int omap1_i2c_add_bus(struct platform_device *pdev, int bus_id)
 {
-        struct platform_device *pdev;
         struct omap_i2c_bus_platform_data *pd;
         struct resource *res;
-        resource_size_t base, irq;
 
-        pdev = &omap_i2c_devices[bus_id - 1];
         pd = pdev->dev.platform_data;
+        res = pdev->resource;
+        res[0].start = OMAP1_I2C_BASE;
+        res[0].end = res[0].start + OMAP_I2C_SIZE;
+        res[1].start = INT_I2C;
+        omap1_i2c_mux_pins(bus_id);
+
+        return platform_device_register(pdev);
+}
+
+static inline int omap2_i2c_add_bus(struct platform_device *pdev, int bus_id)
+{
+        struct resource *res;
+        resource_size_t *irq;
+
+        res = pdev->resource;
+
+        irq = omap2_i2c_irq;
+
         if (bus_id == 1) {
-                res = pdev->resource;
-                if (cpu_class_is_omap1()) {
-                        base = OMAP1_I2C_BASE;
-                        irq = INT_I2C;
-                } else {
-                        base = OMAP2_I2C_BASE1;
-                        irq = INT_24XX_I2C1_IRQ;
-                }
-                res[0].start = base;
-                res[0].end = base + OMAP_I2C_SIZE;
-                res[1].start = irq;
+                res[0].start = OMAP2_I2C_BASE1;
+                res[0].end = res[0].start + OMAP_I2C_SIZE;
         }
 
-        if (cpu_class_is_omap1())
-                omap1_i2c_mux_pins(bus_id);
-        if (cpu_class_is_omap2())
-                omap2_i2c_mux_pins(bus_id);
+        res[1].start = irq[bus_id - 1];
+        omap2_i2c_mux_pins(bus_id);
 
         /*
          * When waiting for completion of a i2c transfer, we need to
@@ -134,12 +145,28 @@ static int __init omap_i2c_add_bus(int bus_id)
          * ensure quick enough wakeup from idle, when transfer
          * completes.
          */
-        if (cpu_is_omap34xx())
+        if (cpu_is_omap34xx()) {
+                struct omap_i2c_bus_platform_data *pd;
+
+                pd = pdev->dev.platform_data;
                 pd->set_mpu_wkup_lat = omap_pm_set_max_mpu_wakeup_lat;
+        }
 
         return platform_device_register(pdev);
 }
 
+static int __init omap_i2c_add_bus(int bus_id)
+{
+        struct platform_device *pdev;
+
+        pdev = &omap_i2c_devices[bus_id - 1];
+
+        if (cpu_class_is_omap1())
+                return omap1_i2c_add_bus(pdev, bus_id);
+        else
+                return omap2_i2c_add_bus(pdev, bus_id);
+}
+
 /**
  * omap_i2c_bus_setup - Process command line options for the I2C bus speed
  * @str: String of options