Re: [PATCH 3/3] gpio: pxa: add PXA1928 gpio type support

From: Linus Walleij
Date: Tue Feb 03 2015 - 07:42:04 EST


On Tue, Jan 27, 2015 at 5:46 AM, Rob Herring <robh@xxxxxxxxxx> wrote:

> Add support for PXA1928 GPIOs. The PXA1928 adds a 6th bank from previous
> generations.
>
> Signed-off-by: Jing Xiang <jxiang@xxxxxxxxxxx>
> Signed-off-by: Xiangzhan Meng <mengxzh@xxxxxxxxxxx>
> [robh: ported to 3.19 from vendor kernel]
> Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
> Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
> Cc: Alexandre Courbot <gnurou@xxxxxxxxx>

Patch applied...

> -#define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
> +#define BANK_OFF(n) (((n) < 3) ? (n) << 2 : ((n) > 5 ? 0x200 : 0x100) \
> + + (((n) % 3) << 2))

While this is a bit convoluted.

Someone care to send a patch converting it to something like a
parseable static inline?

Yours,
Linus Walleij
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