i2c-pxa: Remove hardcoded #ifdef and use cpu_is_pxa27x

remove #ifdef CONFIG_PXA27x .. #endif and use cpu_is_pxaXXXX() macros
so that a single binary can support PXA25x/PXA27x/PXA3xx at run-time.

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 6426a61..da3ecf5 100644 (file)
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -840,6 +840,32 @@ static const struct i2c_algorithm i2c_pxa_algorithm = {
        .functionality  = i2c_pxa_functionality,
 };
 
+static void i2c_pxa_enable(struct platform_device *dev)
+{
+       if (cpu_is_pxa27x()) {
+               switch (dev->id) {
+               case 0:
+                       pxa_gpio_mode(GPIO117_I2CSCL_MD);
+                       pxa_gpio_mode(GPIO118_I2CSDA_MD);
+                       break;
+               case 1:
+                       local_irq_disable();
+                       PCFR |= PCFR_PI2CEN;
+                       local_irq_enable();
+                       break;
+               }
+       }
+}
+
+static void i2c_pxa_disable(struct platform_device *dev)
+{
+       if (cpu_is_pxa27x() && dev->id == 1) {
+               local_irq_disable();
+               PCFR &= ~PCFR_PI2CEN;
+               local_irq_enable();
+       }
+}
+
 #define res_len(r)             ((r)->end - (r)->start + 1)
 static int i2c_pxa_probe(struct platform_device *dev)
 {
@@ -899,25 +925,13 @@ static int i2c_pxa_probe(struct platform_device *dev)
 #endif
 
        clk_enable(i2c->clk);
-#ifdef CONFIG_PXA27x
-       switch (dev->id) {
-       case 0:
-               pxa_gpio_mode(GPIO117_I2CSCL_MD);
-               pxa_gpio_mode(GPIO118_I2CSDA_MD);
-               break;
-       case 1:
-               local_irq_disable();
-               PCFR |= PCFR_PI2CEN;
-               local_irq_enable();
-       }
-#endif
+       i2c_pxa_enable(dev);
 
        ret = request_irq(irq, i2c_pxa_handler, IRQF_DISABLED,
                          i2c->adap.name, i2c);
        if (ret)
                goto ereqirq;
 
-
        i2c_pxa_reset(i2c);
 
        i2c->adap.algo_data = i2c;
@@ -955,14 +969,7 @@ eadapt:
        free_irq(irq, i2c);
 ereqirq:
        clk_disable(i2c->clk);
-
-#ifdef CONFIG_PXA27x
-       if (dev->id == 1) {
-               local_irq_disable();
-               PCFR &= ~PCFR_PI2CEN;
-               local_irq_enable();
-       }
-#endif
+       i2c_pxa_disable(dev);
 eremap:
        clk_put(i2c->clk);
 eclk:
@@ -983,14 +990,7 @@ static int i2c_pxa_remove(struct platform_device *dev)
 
        clk_disable(i2c->clk);
        clk_put(i2c->clk);
-
-#ifdef CONFIG_PXA27x
-       if (dev->id == 1) {
-               local_irq_disable();
-               PCFR &= ~PCFR_PI2CEN;
-               local_irq_enable();
-       }
-#endif
+       i2c_pxa_disable(dev);
 
        release_mem_region(i2c->iobase, i2c->iosize);
        kfree(i2c);