On Mon, 16 Jul 2018 10:37:20 +0200
Pavel Machek [off-list ref] wrote:

On Mon 2018-07-16 00:57:40, Tony Lindgren wrote:

quoted

* Pavel Machek [off-list ref] [180716 07:16]:  

quoted

When all the drivers are built-in, timers are not ready and probing
fails. Fix that with -EPROBE_DEFFER.

Signed-off-by: Pavel Machek <redacted>

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"?  

Yes, that one is equivalent.

You can add

Acked-by: Pavel Machek <redacted>
Tested-by: Pavel Machek <redacted>

on it.

Thanks,
									Pavel

Thanks Pavel. I hadn't been watching the Droid 4 threads, so I didn't 
see you were hitting the same problem. I'm assuming the patch will go
through the PWM tree, so copying in Thierry.