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 | 7ebd4f1f80c9c56f89326990785226a63478576f (patch) | |
| tree | e63ecf3fc5161859dc15356e96d13aaaa8ef91b0 /target/linux | |
| parent | fd76460586975884a37da57294b5a40e026b399b (diff) | |
| download | upstream-7ebd4f1f80c9c56f89326990785226a63478576f.tar.gz upstream-7ebd4f1f80c9c56f89326990785226a63478576f.tar.bz2 upstream-7ebd4f1f80c9c56f89326990785226a63478576f.zip | |
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>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12561 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux')
| -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 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; + } + |