linux-kernel - Re: linux-next: build failure after merge of the gpio tree

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Date:	Tue, 18 Aug 2015 14:00:28 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Stephen Rothwell <sfr@...b.auug.org.au>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>
Cc:	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Hans Verkuil <hans.verkuil@...co.com>,
	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
Subject: Re: linux-next: build failure after merge of the gpio tree

On Tue, Aug 18, 2015 at 8:57 AM, Stephen Rothwell <sfr@...b.auug.org.au> wrote:

> Hi Linus,
>
> After merging the gpio tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
>
> drivers/media/i2c/tc358743.c: In function 'tc358743_probe_of':
> drivers/media/i2c/tc358743.c:1786:22: error: too few arguments to function 'devm_gpiod_get'
>   state->reset_gpio = devm_gpiod_get(dev, "reset");
>                       ^
> In file included from drivers/media/i2c/tc358743.c:34:0:
> include/linux/gpio/consumer.h:73:32: note: declared here
>  struct gpio_desc *__must_check devm_gpiod_get(struct device *dev,
>                                 ^

Argh.

> I have added the following fix patch for today:
>
> From: Stephen Rothwell <sfr@...b.auug.org.au>
> Date: Tue, 18 Aug 2015 16:53:21 +1000
> Subject: [PATCH] [media] tc358743: fix for devm_gpiod_get API change
>
> Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
> ---
>  drivers/media/i2c/tc358743.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
> index fe42c9a1cb78..8f7641164d9d 100644
> --- a/drivers/media/i2c/tc358743.c
> +++ b/drivers/media/i2c/tc358743.c
> @@ -1783,7 +1783,7 @@ static int tc358743_probe_of(struct tc358743_state *state)
>         state->pdata.ths_trailcnt = 0x2;
>         state->pdata.hstxvregcnt = 0;
>
> -       state->reset_gpio = devm_gpiod_get(dev, "reset");
> +       state->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_ASIS);
>         if (IS_ERR(state->reset_gpio)) {
>                 dev_err(dev, "failed to get reset gpio\n");
>                 ret = PTR_ERR(state->reset_gpio);

This is likely the correct solution. Mauro, can you apply Stephen's
patch to your media tree?

Yours,
Linus Walleij
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