diff options
| author | Shawn Guo <shawn.guo@linaro.org> | 2011-12-01 14:49:29 +0800 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2011-12-01 16:15:15 +0800 |
| commit | 04aafd713bae8a75933c7821dc012b0ec9046bca (patch) | |
| tree | 5d0a8b41980b7e229e12510c9d24e27573cf6a8a /arch/arm/mach-imx | |
| parent | 2a3267a489f1dc4284b64a4b88c62011946dc7ff (diff) | |
| download | linux-rt-04aafd713bae8a75933c7821dc012b0ec9046bca.tar.gz | |
arm/imx: fix irq_base for gpio
When gpio core dynamically allocate gpio number for a port, it starts
from the end of the total range, 0 ~ ARCH_NR_GPIOS. That said, the
earlier a port gets probed, the bigger gpio number it gets assigned.
To match this, the irq_base for gpio should be assigned from
'MXC_GPIO_IRQ_START + ARCH_NR_GPIOS' decreasingly.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'arch/arm/mach-imx')
| -rw-r--r-- | arch/arm/mach-imx/mach-imx6q.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c index eb7531bdfed7..22aa54aa9b2a 100644 --- a/arch/arm/mach-imx/mach-imx6q.c +++ b/arch/arm/mach-imx/mach-imx6q.c @@ -39,11 +39,10 @@ static void __init imx6q_map_io(void) static int __init imx6q_gpio_add_irq_domain(struct device_node *np, struct device_node *interrupt_parent) { - static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS - - 32 * 7; /* imx6q gets 7 gpio ports */ + static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS; + gpio_irq_base -= 32; irq_domain_add_simple(np, gpio_irq_base); - gpio_irq_base += 32; return 0; } |