# Re: \[PATCH v3 10/14\] mmc: jz4740: Let the pinctrl driver configure the pins

- From: Paul Cercueil \<paul@crapouillou.net\>
- Date: 2017-01-26 10:11:56 
- List: linux-fbdev
- Page: https://ratatoskr.run/linux-fbdev/2017/01/4920825
- Thread: https://ratatoskr.run/linux-gpio/2017/01/4914584/t.md

```text
Hi Kbuild Test Robot,

> 
> drivers/mmc/host/jz4740_mmc.c: In function 'jz4740_mmc_set_ios':
> drivers/mmc/host/jz4740_mmc.c:864:7: error: implicit declaration of 
> function 'gpio_is_valid' [-Werror=implicit-function-declaration]

  if (gpio_is_valid(host->pdata->gpio_power))
  ^~~~~~~~~~~~~

Uuh, I'm sorry about that. Looks like I removed one header too much 
(<linux/gpio.h>).
My fault, lately I was testing with ci20_defconfig which doesn't enable 
this driver.

Should I send a v4?

Apologies,
-Paul
```