Hi,
* Ralf Göbel <ralf.goebel@xxxxxxxxxxxxxxxxxxxxxx> [180322 17:22]:
> Hi,
>
> I'm using Kernel 4.9.59 and came across a problem using TPS65218 gpio3 with
> the gpio-poweroff driver.
>
> In the device tree I have configured the gpio for open-drain:
>
> gpio_poweroff {
> compatible = "gpio-poweroff";
> gpios = <&tps65218_gpio 2 GPIO_OPEN_DRAIN>;
> };
>
> This is the result:
> [ 3.075343] omap_i2c 44e0b000.i2c: bus 0 rev0.12 at 100 kHz
> [ 3.081907] tps65218-gpio tps65218-gpio.1.auto: GPO3 works only as open
> drain
> [ 3.089262] poweroff-gpio: probe of gpio_poweroff failed with error -22
>
>
> It seem that there was a change in gpiolib that forbids any checks on the
> gpio flags inside the request callback:
> https://patchwork.kernel.org/patch/9247097/
> The gpio-tps65218 driver is actually mentioned doing this.
>
> After removing the sanity checks in tps65218_gpio_request(), the gpio is
> working properly with gpio-poweroff. I'm not sure if this is the solution.
Adding Johan and Linus to Cc, maybe they know what's going on
here.
Regards,
Tony
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