linux-kernel - Re: [PATCH v3] net/macb: add support for resetting PHY using GPIO

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Message-ID: <6382531.CWmTLTEYMq@wuerfel>
Date:	Wed, 16 Dec 2015 20:10:14 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Gregory CLEMENT <gregory.clement@...e-electrons.com>,
	"David S. Miller" <davem@...emloft.net>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	devicetree@...r.kernel.org, Sascha Hauer <s.hauer@...gutronix.de>,
	Russell King <linux@....linux.org.uk>
Subject: Re: [PATCH v3] net/macb: add support for resetting PHY using GPIO

On Wednesday 16 December 2015 19:31:30 Gregory CLEMENT wrote:
> diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
> index 88c1e1a..35661aa 100644
> --- a/drivers/net/ethernet/cadence/macb.c
> +++ b/drivers/net/ethernet/cadence/macb.c
> @@ -28,6 +28,7 @@
>  #include <linux/phy.h>
>  #include <linux/of.h>
>  #include <linux/of_device.h>
> +#include <linux/of_gpio.h>
>  #include <linux/of_mdio.h>
>  #include <linux/of_net.h>

Is this the patch that is already in linux-next?

I needed an additional

#include <linux/gpio/consumer.h>

to avoid this build error on randconfig builds without GPIOLIB:

    drivers/net/ethernet/cadence/macb.c: In function 'macb_probe':
    drivers/net/ethernet/cadence/macb.c:2908:19: error: implicit declaration of function 'devm_gpiod_get_optional' [-Werror=implicit-function-declaration]
      bp->reset_gpio = devm_gpiod_get_optional(&bp->pdev->dev, "phy-reset",
                       ^
    drivers/net/ethernet/cadence/macb.c:2909:8: error: 'GPIOD_OUT_HIGH' undeclared (first use in this function)
            GPIOD_OUT_HIGH);
            ^
    drivers/net/ethernet/cadence/macb.c:2909:8: note: each undeclared identifier is reported only once for each function it appears in
    drivers/net/ethernet/cadence/macb.c: In function 'macb_remove':
    drivers/net/ethernet/cadence/macb.c:2979:3: error: implicit declaration of function 'gpiod_set_value' [-Werror=implicit-function-declaration]


	Arnd
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