I reviewed this issue. And found that the version of u-boot is different from mine. I am not sure whether this issue will happen or not on current version. So, I can't answer about sh_pfc_gpio_disable_free()

My u-boot version is as below: "U-Boot 2018.09-00073-g479b167c7c (Jul 26 2019 - 15:09:43 +0800)"

Thanks and Best Regards

Tiezhuang Dong 董铁庄

Application Engineering Section， Technical Customer Engagement Department 3, Automotive Technical Customer Engagement Division, （ABU / ATCED / ATC3 / Application Engineering Section）

Tel: 010-82351155-6631 13552056582 URL: http://www.cn.renesas.com

-----邮件原件----- 发件人: Marek Vasut marek.vasut@gmail.com 发送时间: 2019年7月23日 18:35 收件人: Tiezhuang Dong tiezhuang.dong.yh@renesas.com; marek.vasut+renesas@gmail.com 抄送: u-boot@lists.denx.de 主题: Re: R-Car-gpio0_00-fails-with-“gpio input” command

On 7/23/19 3:00 AM, Tiezhuang Dong wrote:

Hi,

Hi,

Attached is to fix below issue:

---

=> gpio input gpio@e60500000 mailto:gpio@e60500000 gpio: requesting pin 0 failed gpio - query and control gpio pins

---

Fix:

drivers/pinctrl/renesas/pfc.c +470

//for (i = 1; i < pfc->info->nr_pins; i++) {

for (i = 0; i < pfc->info->nr_pins; i++) {

sh_pfc_gpio_disable_free() needs similar change, right ?

Can you send the patch using git send-email and also add proper commit message ? Thanks

-- Best regards, Marek Vasut