* Pavel Machek <pa...@ucw.cz> [180716 07:16]:
> 
> When all the drivers are built-in, timers are not ready and probing
> fails. Fix that with -EPROBE_DEFFER.
> 
> Signed-off-by: Pavel Machek <pa...@ucw.cz>
> 
> diff --git a/drivers/pwm/pwm-omap-dmtimer.c b/drivers/pwm/pwm-omap-dmtimer.c
> index 665da3c..debeb70 100644
> --- a/drivers/pwm/pwm-omap-dmtimer.c
> +++ b/drivers/pwm/pwm-omap-dmtimer.c
> @@ -265,7 +271,7 @@ static int pwm_omap_dmtimer_probe(struct platform_device 
> *pdev)
>       timer_pdata = dev_get_platdata(&timer_pdev->dev);
>       if (!timer_pdata) {
>               dev_err(&pdev->dev, "dmtimer pdata structure NULL\n");
> -             ret = -EINVAL;
> +             ret = -EPROBE_DEFER;
>               goto put;
>       }

There seems to be an earlier similar patch, care to take a look
at "[PATCH] pwm: pwm-omap-dmtimer: return -EPROBE_DEFER if no
dmtimer platform data"?

Regards,

Tony

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