[Letux-kernel] [PATCH] pwm: pwm-omap-dmtimer: fix probing problems by returning EPROBE_DEFER
H. Nikolaus Schaller
hns at goldelico.com
Sun Jul 29 20:19:08 CEST 2018
> Am 29.07.2018 um 20:08 schrieb Ladislav Michl <ladis at linux-mips.org>:
> On Sun, Jul 29, 2018 at 08:32:41AM +0200, H. Nikolaus Schaller wrote:
>>> Am 28.07.2018 um 22:35 schrieb Ladislav Michl <ladis at linux-mips.org>:
>>> Hi Andreas,
>>> On Sat, Jul 28, 2018 at 06:59:14PM +0200, Andreas Kemnade wrote:
>>>> I got this in the kernel log:
>>>> [ 0.756042] omap-dmtimer-pwm dmtimer-pwm: dmtimer pdata structure NULL
>>>> [ 0.756134] omap-dmtimer-pwm: probe of dmtimer-pwm failed with error -22
>>>> the probe function has to wait until omap_dm_timer_probe() in
>>>> clocksource/timer-ti-dm.c has initialized pdata, so defer probing
>>> There already is a patch by David Rivshin addressing the same issue...
>> Here it is:
>> but hasn't arrived in linux-next.
> That's because there'll be v3.
>> But it is questionable if a driver should dev_info() about doing deferred probing.
>> IMHO, it should just do it which is how Andreas' patch works.
> See here: https://patchwork.ozlabs.org/patch/949659/
Ah, I see (neither Andreas nor me did follow the original discussions
and therefore came up independently with the same thoughts).
So we will wait for the v3.
BR and thanks,
More information about the Letux-kernel