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Revert "ar71xx: fix Arduino Yun enabling of level shifters outputs"

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This reverts commit 077253dd66.

The output enable pins should be disabled by default, and only enabled when
used. Otherwise unwanted conflicts might occur between MCU and SoC pins.

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
(cherry picked from commit 43896dc0b0)
This commit is contained in:
Sungbo Eo
2020-01-12 21:33:53 +09:00
committed by Adrian Schmutzler
parent 2f756b39ed
commit f3c0eab9c7
1 changed files with 2 additions and 2 deletions
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4
target/linux/ar71xx/files/arch/mips/ath79/mach-arduino-yun.c
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@@ -141,7 +141,7 @@ static void __init ds_setup(void)
// enable OE of level shifter
if (gpio_request_one(DS_GPIO_OE,
GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED, "OE-1") != 0)
GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED, "OE-1") != 0)
printk("Error setting GPIO OE\n");
if (gpio_request_one(DS_GPIO_UART_ENA,
@@ -150,7 +150,7 @@ static void __init ds_setup(void)
// enable OE of level shifter
if (gpio_request_one(DS_GPIO_OE2,
GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED, "OE-2") != 0)
GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED, "OE-2") != 0)
printk("Error setting GPIO OE2\n");
}