06.02.2013 02:17, Heiko Stübner пишет:
Hi Alexander,
Am Dienstag, 5. Februar 2013, 20:36:20 schrieb Alexander Varnin:
Hello. I'm trying to setup "s3c2410-lcd" device on SMDK2443 with 3.6
kernel. On requesting interrupt it fails with EINVAL:
~ # dmesg | grep lcd
s3c2410-lcd s3c2410-lcd: cannot get irq 32 - err -22
s3c2410-lcd: probe of s3c2410-lcd failed with error -16
If I remember correctly the s3c2443 has a new-style framebuffer. So using the
s3c2410-fb/lcd driver is the wrong approach. The correct driver to use would
be the s3cfb.
Take a look at mach-smdk2416.c which uses this driver. The init for the
s3c2443 should probably be similar.
Also the irq you requested is a parent irq to different lcd-irqs in the sub-
register on the s3c2443 and s3c2416. Therfore requesting it directly is
disabled by the irq-subsystem.
Hope that helps
Heiko
Thank you for help. I have used s3c-fb driver and all is ok.
The interrupt is not busy by something else. Here is my table:
~ # cat /proc/interrupts
CPU0
17: 0 s3c-ext0 s3c-mci
30: 409934 s3c S3C2410 Timer Tick
37: 0 s3c s3c-mci
42: 416 s3c ohci_hcd:usb1
43: 0 s3c s3c2410-i2c
56: 1 s3c-ext uio_mcross
57: 72585 s3c-ext eth0
73: 63 s3c-uart1 s3c2440-uart
74: 108 s3c-uart1 s3c2440-uart
97: 0 - s3c2410-wdt
Err:
Please, help me to find the reason.
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