[PATCH] ARM: S3C24XX: Correct NR_IRQS definition for s3c2440

[Heiko Stübner]

Am Sonntag, 7. April 2013, 22:22:50 schrieb Sylwester Nawrocki:
> Due to NR_IRQS being incorrectly defined not all IRQ domains can
> be registered for S3C2440. It causes following errors on a s3c2440
> SoC based board:
> 
> NR_IRQS:89
> S3C2440: IRQ Support
> irq: clearing pending status 00000002
> ------------[ cut here ]------------
> WARNING: at kernel/irq/irqdomain.c:234 0xc0056ed0()
> ...
> irq: could not create irq-domain
> ...
> s3c2410-wdt s3c2410-wdt: failed to install irq (-22)
> s3c2410-wdt: probe of s3c2410-wdt failed with error -22
> ...
> samsung-uart s3c2440-uart.0: cannot get irq 74
> 
> Fix this by increasing NR_IRQS to at least (IRQ_S3C2443_AC97 + 1)
> if CPU_S3C2440 is selected, so the subintc IRQ domain gets properly
> registered.
> 
> Cc: Heiko Stübner <heiko at sntech.de>
> Signed-off-by: Tomasz Figa <tomasz.figa at gmail.com>
> Signed-off-by: Sylwester Nawrocki <s.nawrocki at samsung.com>

Thanks for testing the irq changes on another subarchitecture and fixing the 
glitch.

Acked-by: Heiko Stuebner <heiko at sntech.de>


> ---
>  arch/arm/mach-s3c24xx/include/mach/irqs.h |    4 +---
>  1 files changed, 1 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm/mach-s3c24xx/include/mach/irqs.h
> b/arch/arm/mach-s3c24xx/include/mach/irqs.h index 43cada8..b6dd4cb 100644
> --- a/arch/arm/mach-s3c24xx/include/mach/irqs.h
> +++ b/arch/arm/mach-s3c24xx/include/mach/irqs.h
> @@ -192,10 +192,8 @@
> 
>  #if defined(CONFIG_CPU_S3C2416)
>  #define NR_IRQS (IRQ_S3C2416_I2S1 + 1)
> -#elif defined(CONFIG_CPU_S3C2443)
> -#define NR_IRQS (IRQ_S3C2443_AC97+1)
>  #else
> -#define NR_IRQS (IRQ_S3C2440_AC97+1)
> +#define NR_IRQS (IRQ_S3C2443_AC97 + 1)
>  #endif
> 
>  /* compatibility define. */