From: Przemyslaw Marczak <p.marczak@samsung.com>
Date: Wed, 28 Oct 2015 14:41:49 +0000 (+0100)
Subject: Exynos4412: pinmux: disable pull for MMC pins
X-Git-Tag: v2016.01-rc1~110^2~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5d0434315c46a3a038a9842a6627f6a57d1538da;p=platform%2Fkernel%2Fu-boot.git

Exynos4412: pinmux: disable pull for MMC pins

There are 8 pins for SD card in Exynos, but the MUX was configured
only for 7, since the one was used for card detection.
This caused the pin's pull wrong configuration.

This commit fixes this and the card detect can work properly,
after call this function.

Tested-on: Odroid U3 and Odroid X2.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Guillaume GARDET <guillaume.gardet@free.fr>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
---

diff --git a/arch/arm/mach-exynos/pinmux.c b/arch/arm/mach-exynos/pinmux.c
index a556e4a..12eb79c 100644
--- a/arch/arm/mach-exynos/pinmux.c
+++ b/arch/arm/mach-exynos/pinmux.c
@@ -737,10 +737,10 @@ static int exynos4x12_mmc_config(int peripheral, int flags)
 		return -1;
 	}
 	for (i = start; i < (start + 7); i++) {
+		gpio_set_pull(i, S5P_GPIO_PULL_NONE);
 		if (i == (start + 2))
 			continue;
 		gpio_cfg_pin(i,  func);
-		gpio_set_pull(i, S5P_GPIO_PULL_NONE);
 		gpio_set_drv(i, S5P_GPIO_DRV_4X);
 	}
 	if (flags & PINMUX_FLAG_8BIT_MODE) {