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exynos5250: When enabling the I2S pins, turn off pull ups/downs.

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These pins will be driven by the internal controller which shouldn't have pull
ups or downs in the pin fighting with them.

BUG=None
TEST=Built and booted on snow.
BRANCH=None

Change-Id: Ia0fc84cd4575e80b2148dce27e14bb7e5042d473
Reviewed-on: https://gerrit.chromium.org/gerrit/55634
Commit-Queue: Stefan Reinauer <reinauer@google.com>
Reviewed-by: Stefan Reinauer <reinauer@google.com>
Tested-by: Stefan Reinauer <reinauer@google.com>
This commit is contained in:
Gabe Black 2013-05-18 15:52:01 -07:00 • committed by ChromeBot
commit cc5eed84d0
1 changed files with 3 additions and 1 deletions
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4
src/cpu/samsung/exynos5250/pinmux.c
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@ -286,8 +286,10 @@ int exynos_pinmux_config(enum periph_id peripheral, int flags)
gpio_set_pull(GPIO_X07, GPIO_PULL_NONE);
break;
case PERIPH_ID_I2S1:
for (i = 0; i < 5; i++)
for (i = 0; i < 5; i++) {
gpio_cfg_pin(GPIO_B00 + i, GPIO_FUNC(0x02));
gpio_set_pull(GPIO_B00 + i, GPIO_PULL_NONE);
}
break;
default:
printk(BIOS_DEBUG, "%s: invalid peripheral %d", __func__, peripheral);