exynos5: pinmux: check flag for i2c config

Some versions of Exynos5 supports High-Speed I2C,
on few interfaces, this change allows support this.
The new flag is: PINMUX_FLAG_HS_MODE

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Akshay Saraswat <akshay.s@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>

arch/arm/cpu/armv7/exynos/pinmux.c

@@ -266,22 +266,33 @@ static void exynos5_sromc_config(int flags)
 
 static void exynos5_i2c_config(int peripheral, int flags)
 {
+	int func01, func23;
+
+	 /* High-Speed I2C */
+	if (flags & PINMUX_FLAG_HS_MODE) {
+		func01 = 4;
+		func23 = 4;
+	} else {
+		func01 = 2;
+		func23 = 3;
+	}
+
 	switch (peripheral) {
 	case PERIPH_ID_I2C0:
-		gpio_cfg_pin(EXYNOS5_GPIO_B30, S5P_GPIO_FUNC(0x2));
-		gpio_cfg_pin(EXYNOS5_GPIO_B31, S5P_GPIO_FUNC(0x2));
+		gpio_cfg_pin(EXYNOS5_GPIO_B30, S5P_GPIO_FUNC(func01));
+		gpio_cfg_pin(EXYNOS5_GPIO_B31, S5P_GPIO_FUNC(func01));
 		break;
 	case PERIPH_ID_I2C1:
-		gpio_cfg_pin(EXYNOS5_GPIO_B32, S5P_GPIO_FUNC(0x2));
-		gpio_cfg_pin(EXYNOS5_GPIO_B33, S5P_GPIO_FUNC(0x2));
+		gpio_cfg_pin(EXYNOS5_GPIO_B32, S5P_GPIO_FUNC(func01));
+		gpio_cfg_pin(EXYNOS5_GPIO_B33, S5P_GPIO_FUNC(func01));
 		break;
 	case PERIPH_ID_I2C2:
-		gpio_cfg_pin(EXYNOS5_GPIO_A06, S5P_GPIO_FUNC(0x3));
-		gpio_cfg_pin(EXYNOS5_GPIO_A07, S5P_GPIO_FUNC(0x3));
+		gpio_cfg_pin(EXYNOS5_GPIO_A06, S5P_GPIO_FUNC(func23));
+		gpio_cfg_pin(EXYNOS5_GPIO_A07, S5P_GPIO_FUNC(func23));
 		break;
 	case PERIPH_ID_I2C3:
-		gpio_cfg_pin(EXYNOS5_GPIO_A12, S5P_GPIO_FUNC(0x3));
-		gpio_cfg_pin(EXYNOS5_GPIO_A13, S5P_GPIO_FUNC(0x3));
+		gpio_cfg_pin(EXYNOS5_GPIO_A12, S5P_GPIO_FUNC(func23));
+		gpio_cfg_pin(EXYNOS5_GPIO_A13, S5P_GPIO_FUNC(func23));
 		break;
 	case PERIPH_ID_I2C4:
 		gpio_cfg_pin(EXYNOS5_GPIO_A20, S5P_GPIO_FUNC(0x3));

arch/arm/include/asm/arch-exynos/pinmux.h

@@ -23,6 +23,9 @@ enum {
 	/* Flags for SROM controller */
 	PINMUX_FLAG_BANK	= 3 << 0,       /* bank number (0-3) */
 	PINMUX_FLAG_16BIT	= 1 << 2,       /* 16-bit width */
+
+	/* Flags for I2C */
+	PINMUX_FLAG_HS_MODE	= 1 << 1,       /* I2C High Speed Mode */
 };
 
 /**