driver:i2c:s3c24x0: adapt driver to new i2c

This patch adapts the s3c24x0 driver to the new i2c framework.
Config file is modified for all the boards that use the driver.

Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
CC: Minkyu Kang <mk7.kang@samsung.com>
CC: Heiko Schocher <hs@denx.de>
CC: Inderpal Singh <inderpal.singh@linaro.org>
CC: David Müller <d.mueller@elsoft.ch>
CC: Chander Kashyap <k.chander@samsung.com>
CC: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reviewed-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c
index 7012c13..44be5fc 100644
--- a/board/samsung/trats/trats.c
+++ b/board/samsung/trats/trats.c
@@ -57,15 +57,18 @@
 
 void i2c_init_board(void)
 {
-	struct exynos4_gpio_part1 *gpio1 =
-		(struct exynos4_gpio_part1 *)samsung_get_base_gpio_part1();
+	int err;
 	struct exynos4_gpio_part2 *gpio2 =
 		(struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
 
-	/* I2C_5 -> PMIC -> Adapter 0 */
-	s5p_gpio_direction_output(&gpio1->b, 7, 1);
-	s5p_gpio_direction_output(&gpio1->b, 6, 1);
-	/* I2C_9 -> FG -> Adapter 1 */
+	/* I2C_5 -> PMIC */
+	err = exynos_pinmux_config(PERIPH_ID_I2C5, PINMUX_FLAG_NONE);
+	if (err) {
+		debug("I2C%d not configured\n", (I2C_5));
+		return;
+	}
+
+	/* I2C_8 -> FG */
 	s5p_gpio_direction_output(&gpio2->y4, 0, 1);
 	s5p_gpio_direction_output(&gpio2->y4, 1, 1);
 }
@@ -290,10 +293,10 @@
 	 * The FUEL_GAUGE is marked as I2C9 on the schematic, but connected
 	 * to logical I2C adapter 1
 	 */
-	ret = pmic_init(I2C_0);
+	ret = pmic_init(I2C_5);
 	ret |= pmic_init_max8997();
-	ret |= power_fg_init(I2C_1);
-	ret |= power_muic_init(I2C_0);
+	ret |= power_fg_init(I2C_8);
+	ret |= power_muic_init(I2C_5);
 	ret |= power_bat_init(0);
 	if (ret)
 		return ret;