From ae253edfbee3ada91ff5eda5e1c5dbb43a734700 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Tue, 9 Sep 2008 09:20:50 +0000 Subject: [PATCH] au1000: fix gpio output when setting the output state of one GPIO pin we have to keep the state of the other pins, hence use binary OR. also gpio_direction_output() wants to set an initial value, so add that too. this fixes a problem with the USB power switch on mtx-1 boards. (#3974) Signed-off-by: Bruno Randolf SVN-Revision: 12561 --- .../linux/au1000/patches/017-gpio-dir.patch | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 target/linux/au1000/patches/017-gpio-dir.patch diff --git a/target/linux/au1000/patches/017-gpio-dir.patch b/target/linux/au1000/patches/017-gpio-dir.patch new file mode 100644 index 0000000000..c499d38e72 --- /dev/null +++ b/target/linux/au1000/patches/017-gpio-dir.patch @@ -0,0 +1,20 @@ +--- linux-2.6.25.16/arch/mips/au1000/common/gpio.c.org 2008-09-04 22:32:12.000000000 +0200 ++++ linux-2.6.25.16/arch/mips/au1000/common/gpio.c 2008-09-04 23:10:18.000000000 +0200 +@@ -66,7 +66,8 @@ + static int au1xxx_gpio2_direction_output(unsigned gpio, int value) + { + gpio -= AU1XXX_GPIO_BASE; +- gpio2->dir = (0x01 << gpio) | (value << gpio); ++ gpio2->dir |= 0x01 << gpio; ++ gpio2->output = (GPIO2_OUTPUT_ENABLE_MASK << gpio) | (value << gpio); + return 0; + } + +@@ -95,6 +96,7 @@ + static int au1xxx_gpio1_direction_output(unsigned gpio, int value) + { + gpio1->trioutclr = (0x01 & gpio); ++ au1xxx_gpio1_write(gpio, value); + return 0; + } +