On Thursday, March 14, 2013 6:58 AM, Arnd Bergmann wrote: > On Thursday 14 March 2013, Fabio Porcedda wrote: >> This patch converts the drivers to use the >> module_platform_driver_probe() macro which makes the code smaller and >> a bit simpler. >> >> Signed-off-by: Fabio Porcedda <fabio.porcedda@xxxxxxxxx> >> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> >> Cc: Arnd Bergmann <arnd@xxxxxxxx> >> --- >> drivers/misc/atmel_pwm.c | 12 +----------- >> drivers/misc/ep93xx_pwm.c | 13 +------------ >> 2 files changed, 2 insertions(+), 23 deletions(-) > > The patch itself seems fine, but there are two issues around it: > > * The PWM drivers should really get moved to drivers/pwm and converted to the new > PWM subsystem. I don't know if Hartley or Hans-Christian have plans to do > that already. Arnd, Ill look at converting the ep93xx pwm driver to the PWM subsystem. The only issue is the current driver exposes a sysfs interface that I think is not available in that subsystem. >* Regarding the use of module_platform_driver_probe, I'm a little worried about > the interactions with deferred probing. I don't think there are any regressions, > but we should probably make people aware that one cannot return -EPROBE_DEFER > from a platform_driver_probe function. The ep93xx pwm driver does not need to use platform_driver_probe(). It can be changed to use module_platform_driver() by just moving the .probe to the platform_driver. This driver was added before module_platform_driver() was available and I used the platform_driver_probe() thinking it would save a couple lines of code. I'll change this in a bit. Right now I'm trying to work out why kernel 3.8 is not booting on the ep93xx. I had 3.6.6 on my development board and 3.7 works fine but 3.8 hangs without uncompressing the kernel. Regards, Hartley -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
