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>

3 files changed, 41 insertions, 17 deletions

diff --git a/board/samsung/smdk5250/exynos5-dt.c b/board/samsung/smdk5250/exynos5-dt.c
index 6bcc883b10..6aa0509823 100644
--- a/board/samsung/smdk5250/exynos5-dt.c
+++ b/board/samsung/smdk5250/exynos5-dt.c
@@ -150,8 +150,6 @@ int power_init_board(void)
 
 	set_ps_hold_ctrl();
 
-	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
-
 	if (pmic_init(I2C_PMIC))
 		return -1;
 
diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c
index 7012c134fb..44be5fcaf9 100644
--- a/board/samsung/trats/trats.c
+++ b/board/samsung/trats/trats.c
@@ -57,15 +57,18 @@ int board_init(void)
 
 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 @@ int power_init_board(void)
 	 * 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;
diff --git a/board/samsung/trats2/trats2.c b/board/samsung/trats2/trats2.c
index d44d825e80..8df85ee396 100644
--- a/board/samsung/trats2/trats2.c
+++ b/board/samsung/trats2/trats2.c
@@ -115,12 +115,17 @@ static void board_external_gpio_init(void)
 #ifdef CONFIG_SYS_I2C_INIT_BOARD
 static void board_init_i2c(void)
 {
+	int err;
+
 	gpio1 = (struct exynos4x12_gpio_part1 *)EXYNOS4X12_GPIO_PART1_BASE;
 	gpio2 = (struct exynos4x12_gpio_part2 *)EXYNOS4X12_GPIO_PART2_BASE;
 
 	/* I2C_7 */
-	s5p_gpio_direction_output(&gpio1->d0, 2, 1);
-	s5p_gpio_direction_output(&gpio1->d0, 3, 1);
+	err = exynos_pinmux_config(PERIPH_ID_I2C7, PINMUX_FLAG_NONE);
+	if (err) {
+		debug("I2C%d not configured\n", (I2C_7));
+		return;
+	}
 
 	/* I2C_8 */
 	s5p_gpio_direction_output(&gpio1->f1, 4, 1);
@@ -132,6 +137,24 @@ static void board_init_i2c(void)
 }
 #endif
 
+#ifdef CONFIG_SYS_I2C_SOFT
+int get_soft_i2c_scl_pin(void)
+{
+	if (I2C_ADAP_HWNR)
+		return exynos4x12_gpio_part2_get_nr(m2, 1); /* I2C9 */
+	else
+		return exynos4x12_gpio_part1_get_nr(f1, 4); /* I2C8 */
+}
+
+int get_soft_i2c_sda_pin(void)
+{
+	if (I2C_ADAP_HWNR)
+		return exynos4x12_gpio_part2_get_nr(m2, 0); /* I2C9 */
+	else
+		return exynos4x12_gpio_part1_get_nr(f1, 5); /* I2C8 */
+}
+#endif
+
 int board_early_init_f(void)
 {
 	check_hw_revision();
@@ -167,11 +190,11 @@ int power_init_board(void)
 #ifdef CONFIG_SYS_I2C_INIT_BOARD
 	board_init_i2c();
 #endif
-	pmic_init(I2C_0);		/* I2C adapter 0 - bus name I2C_5 */
+	pmic_init(I2C_7);		/* I2C adapter 7 - bus name s3c24x0_7 */
 	pmic_init_max77686();
-	pmic_init_max77693(I2C_2);	/* I2C adapter 2 - bus name I2C_10 */
-	power_muic_init(I2C_2);		/* I2C adapter 2 - bus name I2C_10 */
-	power_fg_init(I2C_1);		/* I2C adapter 1 - bus name I2C_9 */
+	pmic_init_max77693(I2C_9);	/* I2C adapter 9 - bus name soft1 */
+	power_muic_init(I2C_9);		/* I2C adapter 9 - bus name soft1 */
+	power_fg_init(I2C_8);		/* I2C adapter 8 - bus name soft0 */
 	power_bat_init(0);
 
 	p_chrg = pmic_get("MAX77693_PMIC");