diff options
| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2008-05-10 23:25:46 +0200 |
|---|---|---|
| committer | Lennert Buytenhek <buytenh@marvell.com> | 2008-06-22 22:44:47 +0200 |
| commit | 19cfd5c09f780ac870fd9d89201c4ebc0b22be81 (patch) | |
| tree | 655e4eb79d22a8e9a62676f6fc13391bf8de931f /arch/arm/mach-orion5x/gpio.c | |
| parent | 386a048a1ea42ff9ac87ffa344c4c19a5cc59678 (diff) | |
[ARM] Orion: rework MPP handling
Instead of having board code poke directly into the MPP configuration
registers, and separately calling orion5x_gpio_set_valid_pins() to
indicate which MPP pins can be used as GPIO pins, introduce a helper
function for configuring the roles of each of the MPP pins, and have
that helper function handle gpio validity internally.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Sylver Bruneau <sylver.bruneau@googlemail.com>
Acked-by: Russell King <linux@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-orion5x/gpio.c')
| -rw-r--r-- | arch/arm/mach-orion5x/gpio.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/arm/mach-orion5x/gpio.c b/arch/arm/mach-orion5x/gpio.c index 8108c316c42..9fba6a16dc1 100644 --- a/arch/arm/mach-orion5x/gpio.c +++ b/arch/arm/mach-orion5x/gpio.c @@ -24,9 +24,12 @@ static DEFINE_SPINLOCK(gpio_lock); static unsigned long gpio_valid[BITS_TO_LONGS(GPIO_MAX)]; static const char *gpio_label[GPIO_MAX]; /* non null for allocated GPIOs */ -void __init orion5x_gpio_set_valid_pins(u32 pins) +void __init orion5x_gpio_set_valid(unsigned pin, int valid) { - gpio_valid[0] = pins; + if (valid) + __set_bit(pin, gpio_valid); + else + __clear_bit(pin, gpio_valid); } /* |