diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2013-09-10 11:19:55 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-09-27 14:15:07 +0200 |
| commit | 8040dd09c2ca7e70daf84f040beb3ced9602fce5 (patch) | |
| tree | c57e492d4d402a07c7585207a063545f50abc77d /arch/arm/mach-ixp4xx/nslu2-setup.c | |
| parent | 272b98c6455f00884f0350f775c5342358ebb73f (diff) | |
ARM: ixp4xx: convert remaining users to use gpiolib
A few call sites inside mach-ixp4xx were still using the custom
ixp4xx GPIO API with gpio_line_* accessors, convert all these
to use the standard gpiolib functions instead. Also attempt to
request and label all GPIOs before use. Move the GPIO requests
to per-machine device_initcalls() so we are not dependent on the
GPIO chip to be available at machine_init time.
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/arm/mach-ixp4xx/nslu2-setup.c')
| -rw-r--r-- | arch/arm/mach-ixp4xx/nslu2-setup.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c index 7e55236c26ea..ba5f1cda2a9d 100644 --- a/arch/arm/mach-ixp4xx/nslu2-setup.c +++ b/arch/arm/mach-ixp4xx/nslu2-setup.c @@ -197,11 +197,8 @@ static void nslu2_power_off(void) { /* This causes the box to drop the power and go dead. */ - /* enable the pwr cntl gpio */ - gpio_line_config(NSLU2_PO_GPIO, IXP4XX_GPIO_OUT); - - /* do the deed */ - gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH); + /* enable the pwr cntl gpio and assert power off */ + gpio_direction_output(NSLU2_PO_GPIO, 1); } static irqreturn_t nslu2_power_handler(int irq, void *dev_id) @@ -223,6 +220,16 @@ static irqreturn_t nslu2_reset_handler(int irq, void *dev_id) return IRQ_HANDLED; } +static int __init nslu2_gpio_init(void) +{ + if (!machine_is_nslu2()) + return 0; + + /* Request the power off GPIO */ + return gpio_request(NSLU2_PO_GPIO, "power off"); +} +device_initcall(nslu2_gpio_init); + static void __init nslu2_timer_init(void) { /* The xtal on this machine is non-standard. */ |