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authorBruno Randolf <br1@einfach.org>2008-09-23 13:48:36 -0400
committerRalf Baechle <ralf@linux-mips.org>2008-09-23 18:26:54 -0400
commit44ce17192a01218b242e032237e1d2e52ef50429 (patch)
tree662b2593eb3802a22031ff1c7c2b39d5207deaf8 /arch
parentfb478da5ba69ecf40729ae8ab37ca406b1e5be48 (diff)
[MIPS] au1000: Fix gpio direction
When setting the direction 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. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/au1000/common/gpio.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/mips/au1000/common/gpio.c b/arch/mips/au1000/common/gpio.c
index b485d94ce8a5..1f058434b726 100644
--- a/arch/mips/au1000/common/gpio.c
+++ b/arch/mips/au1000/common/gpio.c
@@ -61,7 +61,8 @@ static int au1xxx_gpio2_direction_input(unsigned gpio)
61static int au1xxx_gpio2_direction_output(unsigned gpio, int value) 61static int au1xxx_gpio2_direction_output(unsigned gpio, int value)
62{ 62{
63 gpio -= AU1XXX_GPIO_BASE; 63 gpio -= AU1XXX_GPIO_BASE;
64 gpio2->dir = (0x01 << gpio) | (value << gpio); 64 gpio2->dir |= 0x01 << gpio;
65 gpio2->output = (GPIO2_OUTPUT_ENABLE_MASK << gpio) | (value << gpio);
65 return 0; 66 return 0;
66} 67}
67 68
@@ -90,6 +91,7 @@ static int au1xxx_gpio1_direction_input(unsigned gpio)
90static int au1xxx_gpio1_direction_output(unsigned gpio, int value) 91static int au1xxx_gpio1_direction_output(unsigned gpio, int value)
91{ 92{
92 gpio1->trioutclr = (0x01 & gpio); 93 gpio1->trioutclr = (0x01 & gpio);
94 au1xxx_gpio1_write(gpio, value);
93 return 0; 95 return 0;
94} 96}
95 97