From: Neil Armstrong <narmstrong@baylibre.com>
To: Andrew Lunn <andrew@lunn.ch>, David Miller <davem@davemloft.net>
Cc: netdev <netdev@vger.kernel.org>,
Florian Fainelli <f.fainelli@gmail.com>,
Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Subject: Re: [PATCH net-next 1/2] net: dsa: Add support for a switch reset gpio
Date: Thu, 19 Nov 2015 09:39:11 +0100 [thread overview]
Message-ID: <564D8AAF.6060901@baylibre.com> (raw)
In-Reply-To: <1447889365-25256-2-git-send-email-andrew@lunn.ch>
Hi Andrew,
On 11/19/2015 12:29 AM, Andrew Lunn wrote:
> + gpio = of_get_named_gpio_flags(child, "reset-gpios", 0,
> + &flags);
> + if (gpio_is_valid(gpio)) {
> + ret = devm_gpio_request_one(dev, gpio, flags,
> + "switch_reset");
> + if (ret)
> + goto out_free_chip;
> +
> + cd->reset = gpio;
> + cd->reset_flags = flags;
> + off = (flags && OF_GPIO_ACTIVE_LOW ? 1 : 0);
> + gpio_direction_output(cd->reset, off);
> + }
> +
> for_each_available_child_of_node(child, port) {
> port_reg = of_get_property(port, "reg", NULL);
> if (!port_reg)
>
You could also use :
gpio = of_get_named_gpio(child, "reset-gpios", 0)
devm_gpio_request(dev, gpio, "switch_reset")
and :
cd->reset = gpio_to_desc(gpio);
and cd->switch reset to struct gpio_desc *reset
to use the gpiod calls afterward. The flags are no more needed.
Neil
next prev parent reply other threads:[~2015-11-19 8:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-18 23:29 [PATCH net-next 0/2] DSA: GPIO to reset switches Andrew Lunn
2015-11-18 23:29 ` [PATCH net-next 1/2] net: dsa: Add support for a switch reset gpio Andrew Lunn
2015-11-19 3:06 ` Andrew Lunn
2015-11-19 8:39 ` Neil Armstrong [this message]
2015-11-19 14:55 ` Andrew Lunn
2015-11-18 23:29 ` [PATCH net-next 2/2] dsa: mv88e6xxx.c: Hardware reset the chip if available Andrew Lunn
2015-11-18 23:51 ` Florian Fainelli
2015-11-19 1:13 ` Andrew Lunn
2015-11-19 2:08 ` Phil Reid
2015-11-19 2:25 ` Andrew Lunn
2015-11-19 6:32 ` Phil Reid
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