i2c: s3c: Implant support for S3C2440

This is a matter of simple additional ifdefery to cater
for the different register layout of the S3C2440 chip.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

drivers/i2c/s3c24x0_i2c.c

@@ -165,7 +165,7 @@ static int GetI2CSDA(void)
 {
 	struct s3c24x0_gpio *gpio = s3c24x0_get_base_gpio();
 
-#ifdef CONFIG_S3C2410
+#if defined(CONFIG_S3C2410) || defined(CONFIG_S3C2440)
 	return (readl(&gpio->gpedat) & 0x8000) >> 15;
 #endif
 #ifdef CONFIG_S3C2400
@@ -177,7 +177,7 @@ static void SetI2CSCL(int x)
 {
 	struct s3c24x0_gpio *gpio = s3c24x0_get_base_gpio();
 
-#ifdef CONFIG_S3C2410
+#if defined(CONFIG_S3C2410) || defined(CONFIG_S3C2440)
 	writel((readl(&gpio->gpedat) & ~0x4000) |
 					(x & 1) << 14, &gpio->gpedat);
 #endif
@@ -443,7 +443,7 @@ static void s3c24x0_i2c_init(struct i2c_adapter *adap, int speed, int slaveadd)
 	int i;
 
 	if ((readl(&i2c->iicstat) & I2CSTAT_BSY) || GetI2CSDA() == 0) {
-#ifdef CONFIG_S3C2410
+#if defined(CONFIG_S3C2410) || defined(CONFIG_S3C2440)
 		ulong old_gpecon = readl(&gpio->gpecon);
 #endif
 #ifdef CONFIG_S3C2400
@@ -452,7 +452,7 @@ static void s3c24x0_i2c_init(struct i2c_adapter *adap, int speed, int slaveadd)
 		/* bus still busy probably by (most) previously interrupted
 		   transfer */
 
-#ifdef CONFIG_S3C2410
+#if defined(CONFIG_S3C2410) || defined(CONFIG_S3C2440)
 		/* set I2CSDA and I2CSCL (GPE15, GPE14) to GPIO */
 		writel((readl(&gpio->gpecon) & ~0xF0000000) | 0x10000000,
 		       &gpio->gpecon);
@@ -478,7 +478,7 @@ static void s3c24x0_i2c_init(struct i2c_adapter *adap, int speed, int slaveadd)
 		udelay(1000);
 
 		/* restore pin functions */
-#ifdef CONFIG_S3C2410
+#if defined(CONFIG_S3C2410) || defined(CONFIG_S3C2440)
 		writel(old_gpecon, &gpio->gpecon);
 #endif
 #ifdef CONFIG_S3C2400