Re: Broken IRQ handling for S3C2416

["Heiko Stübner" <heiko@sntech.de>]

Hi Jose,

Am Donnerstag, 27. Juni 2013, 13:59:07 schrieb José Miguel Gonçalves:
> Hi,
> 
> While migrating from kernel 3.8 to kernel 3.9 I've detected a problem on my
> S3C2416 based board. I'm using UART 3 as console and with kernel 3.9 I'm
> unable to have a getty working on that port and see a lot of these on
> dmesg:
> 
> samsung-uart s3c2440-uart.3: cannot get irq 94
> 
> Also WDT is not correctly initialized in 3.8, I see in dmesg:
> 
> s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq disabled
> 
> while in 3.9 I see:
> 
> s3c2410-wdt s3c2410-wdt: tmr_margin value out of range, default 15 used
> s3c2410-wdt s3c2410-wdt: failed to install irq (-38)
> s3c2410-wdt: probe of s3c2410-wdt failed with error -38
> 
> So I guess something is broken in 3.9 kernel's IRQ handling for S3C2416.

when I checked two days ago, the irqs where working fine on my s3c2416 board.

Basic questions, did you change the init_irq callback to the correct new 
function (s3c2416_init_irq) in your board file, can you provide a more 
complete log and of course and is your board-file available somewhere?


Thanks
Heiko