linux-kernel - Re: [PATCH] pinctrl: aspeed: Fix GPI only function problem.

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Date:   Fri, 30 Oct 2020 04:46:22 +0000
From:   Joel Stanley <joel@....id.au>
To:     Andrew Jeffery <andrew@...id.au>
Cc:     Billy Tsai <billy_tsai@...eedtech.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-aspeed <linux-aspeed@...ts.ozlabs.org>,
        OpenBMC Maillist <openbmc@...ts.ozlabs.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        BMC-SW <BMC-SW@...eedtech.com>
Subject: Re: [PATCH] pinctrl: aspeed: Fix GPI only function problem.

On Fri, 30 Oct 2020 at 04:28, Andrew Jeffery <andrew@...id.au> wrote:
>
> Hi Billy,
>
> On Tue, 27 Oct 2020, at 19:14, Billy Tsai wrote:
> > Some gpio pin at aspeed soc is input only and the prefix name of these
> > pin is "GPI" only. This patch fine-tune the condition of GPIO check from
> > "GPIO" to "GPI".
> >
> > Signed-off-by: Billy Tsai <billy_tsai@...eedtech.com>
>
> I'd like it if we were a bit more specific in the commit message, and even
> better if we update the comment in the code. A quick look at the code suggests
> this issue affects GPIO banks D and E in the AST2400 and AST2500, and banks T
> and U in the AST2600.
>
> Functionally I think the patch is fine.

Also add this line:

Fixes: 4d3d0e4272d8 ("pinctrl: Add core support for Aspeed SoCs")

Cheers,

Joel

>
> Cheers,
>
> Andrew
>
> > ---
> >  drivers/pinctrl/aspeed/pinctrl-aspeed.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed.c
> > b/drivers/pinctrl/aspeed/pinctrl-aspeed.c
> > index 53f3f8aec695..a2f5ede3f897 100644
> > --- a/drivers/pinctrl/aspeed/pinctrl-aspeed.c
> > +++ b/drivers/pinctrl/aspeed/pinctrl-aspeed.c
> > @@ -292,7 +292,7 @@ static bool aspeed_expr_is_gpio(const struct
> > aspeed_sig_expr *expr)
> >        *
> >        * expr->signal might look like "GPIOT3" in the GPIO case.
> >        */
> > -     return strncmp(expr->signal, "GPIO", 4) == 0;
> > +     return strncmp(expr->signal, "GPI", 3) == 0;
> >  }
> >
> >  static bool aspeed_gpio_in_exprs(const struct aspeed_sig_expr **exprs)
> > --
> > 2.17.1
> >
> >