linux-kernel - Re: [PATCH V2 4/4] gpio: sprd: Support 8 banks EIC controller

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Date: Wed, 3 Jan 2024 20:03:42 +0800
From: wenhua lin <wenhua.lin1994@...il.com>
To: Baolin Wang <baolin.wang@...ux.alibaba.com>
Cc: Wenhua Lin <Wenhua.Lin@...soc.com>, Linus Walleij <linus.walleij@...aro.org>, 
	Andy Shevchenko <andy@...nel.org>, Bartosz Golaszewski <brgl@...ev.pl>, Orson Zhai <orsonzhai@...il.com>, 
	Chunyan Zhang <zhang.lyra@...il.com>, linux-gpio@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Xiongpeng Wu <xiongpeng.wu@...soc.com>
Subject: Re: [PATCH V2 4/4] gpio: sprd: Support 8 banks EIC controller

On Wed, Sep 27, 2023 at 5:28 PM Baolin Wang
<baolin.wang@...ux.alibaba.com> wrote:
>
>
>
> On 9/21/2023 5:00 PM, Wenhua Lin wrote:
> > In order to solve the problem of insufficient eic,
> > it supports 8 banks of eic controller, each bank contains 8 eic.
> >
> > Signed-off-by: Wenhua Lin <Wenhua.Lin@...soc.com>
> > ---
> >   drivers/gpio/gpio-eic-sprd.c | 8 ++++----
> >   1 file changed, 4 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/gpio/gpio-eic-sprd.c b/drivers/gpio/gpio-eic-sprd.c
> > index e85addbdf8aa..6bb002060c3e 100644
> > --- a/drivers/gpio/gpio-eic-sprd.c
> > +++ b/drivers/gpio/gpio-eic-sprd.c
> > @@ -51,10 +51,10 @@
> >   #define SPRD_EIC_SYNC_DATA          0x1c
> >
> >   /*
> > - * The digital-chip EIC controller can support maximum 3 banks, and each bank
> > + * The digital-chip EIC controller can support maximum 8 banks, and each bank
> >    * contains 8 EICs.
> >    */
> > -#define SPRD_EIC_MAX_BANK            3
> > +#define SPRD_EIC_MAX_BANK            8
> >   #define SPRD_EIC_PER_BANK_NR                8
> >   #define SPRD_EIC_DATA_MASK          GENMASK(7, 0)
> >   #define SPRD_EIC_BIT(x)                     ((x) & (SPRD_EIC_PER_BANK_NR - 1))
> > @@ -615,9 +615,9 @@ static int sprd_eic_probe(struct platform_device *pdev)
> >
> >       for (i = 0; i < SPRD_EIC_MAX_BANK; i++) {
> >               /*
> > -              * We can have maximum 3 banks EICs, and each EIC has
> > +              * We can have maximum 8 banks EICs, and each EIC has
> >                * its own base address. But some platform maybe only
> > -              * have one bank EIC, thus base[1] and base[2] can be
> > +              * have one bank EIC, thus base[1] and base[7] can be
>
> Should be "base[1] to base[7]"

Thank you very much for your review.
I will fix this issue in patch v3.

>
> >                * optional.
> >                */
> >               res = platform_get_resource(pdev, IORESOURCE_MEM, i);