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SubjectRe: [PATCH] ACPI / gpio: do not fall back to parsing _CRS when we get a deferral
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On Thu, 2017-03-23 at 13:21 -0700, Dmitry Torokhov wrote:
> If, while locating GPIOs by name, we get probe deferral, we should
> immediately report it to caller rather than trying to fall back to
> parsing
> unnamed GPIOs from _CRS block.

+Cc: Hans.

Hans, do have any objections on this? Would you ideally give your
Tested-by?

>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> ---
>  drivers/gpio/gpiolib-acpi.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
> index a3faefa44f68..d3f9f028a37b 100644
> --- a/drivers/gpio/gpiolib-acpi.c
> +++ b/drivers/gpio/gpiolib-acpi.c
> @@ -572,8 +572,10 @@ struct gpio_desc *acpi_find_gpio(struct device
> *dev,
>   }
>  
>   desc = acpi_get_gpiod_by_index(adev, propname, idx,
> &info);
> - if (!IS_ERR(desc) || (PTR_ERR(desc) ==
> -EPROBE_DEFER))
> + if (!IS_ERR(desc))
>   break;
> + if (PTR_ERR(desc) == -EPROBE_DEFER)
> + return ERR_CAST(desc);
>   }
>  
>   /* Then from plain _CRS GPIOs */
> -- 
> 2.12.1.500.gab5fba24ee-goog
>
>

--
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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