diff options
| author | Florian Fainelli <florian@openwrt.org> | 2008-09-09 09:20:50 +0000 |
|---|---|---|
| committer | Florian Fainelli <florian@openwrt.org> | 2008-09-09 09:20:50 +0000 |
| commit | ae253edfbee3ada91ff5eda5e1c5dbb43a734700 (patch) | |
| tree | 0b77f0903e402cbef21d8e967c34898746c71412 /target/linux/au1000/patches/017-gpio-dir.patch | |
| parent | 8dc12e90968482e35a25b4bfe8443586838f208c (diff) | |
| download | mtk-20170518-ae253edfbee3ada91ff5eda5e1c5dbb43a734700.zip mtk-20170518-ae253edfbee3ada91ff5eda5e1c5dbb43a734700.tar.gz mtk-20170518-ae253edfbee3ada91ff5eda5e1c5dbb43a734700.tar.bz2 | |
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 <br1@einfach.org>
SVN-Revision: 12561
Diffstat (limited to 'target/linux/au1000/patches/017-gpio-dir.patch')
| -rw-r--r-- | target/linux/au1000/patches/017-gpio-dir.patch | 20 |
1 files changed, 20 insertions, 0 deletions
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 0000000..c499d38 --- /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; + } + |