On Thu, Feb 14, 2019 at 11:05 PM Enrico Weigelt, metux IT consult
<[email protected]> wrote:

> GPIO platform driver for the AMD G-series PCH (eg. on GX-412TC)
>
> This driver doesn't registers itself automatically, as it needs to
> be provided with platform specific configuration, provided by some
> board driver setup code.
>
> Didn't implement oftree probing yet, as it's rarely found on x86.
>
> Cc: [email protected]
> Cc: [email protected]
> Cc: [email protected]
> Cc: [email protected]
> Cc: [email protected]
> Cc: [email protected]
>
> Signed-off-by: Enrico Weigelt, metux IT consult <[email protected]>

(...)
> +config GPIO_AMD_FCH
> +       tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
> +       select GPIO_GENERIC

Now I see that you do this

> +       spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
(...)
> +       spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);

Only to get that spinlock.

That's not what GPIO_GENERIC is for, just put a spinlock in your
local state container struct amd_fch_gpio_priv instead.

Yours,
Linus Walleij

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