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

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Date:   Wed, 27 Sep 2023 17:28:46 +0800
From:   Baolin Wang <baolin.wang@...ux.alibaba.com>
To:     Wenhua Lin <Wenhua.Lin@...soc.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Andy Shevchenko <andy@...nel.org>,
        Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Orson Zhai <orsonzhai@...il.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        wenhua lin <wenhua.lin1994@...il.com>,
        Xiongpeng Wu <xiongpeng.wu@...soc.com>
Subject: Re: [PATCH V2 4/4] gpio: sprd: Support 8 banks EIC controller



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]"

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