From: Linus Walleij <linus.walleij@linaro.org>
To: Baruch Siach <baruch@tkos.co.il>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>,
Thierry Reding <thierry.reding@gmail.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Sven Auhagen <sven.auhagen@voleatech.de>,
linux-pwm@vger.kernel.org,
"open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
linux-pci <linux-pci@vger.kernel.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>,
Gregory Clement <gregory.clement@bootlin.com>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Subject: Re: [PATCH 1/2] gpio: mvebu: implement get_direction
Date: Thu, 10 Jan 2019 16:20:35 +0100 [thread overview]
Message-ID: <CACRpkdY3Uphb13rAcnWvnd=cirHYeqkWk3sb3yWSNL=jzA1cHg@mail.gmail.com> (raw)
In-Reply-To: <024cc24efa7b99186750f90c91880b29357d379d.1547123182.git.baruch@tkos.co.il>
On Thu, Jan 10, 2019 at 1:27 PM Baruch Siach <baruch@tkos.co.il> wrote:
> struct gpio_chip documentation recommends to always implement this
> callback function.
>
> A more concrete motivation is to be able (in combination with
> GPIOD_ASIS) to detect whether the bootloader has changed the state of a
> GPIO signal.
>
> Signed-off-by: Baruch Siach <baruch@tkos.co.il>
This is strongly recommended for all drivers to implment so patch
applied.
Yours,
Linus Walleij
prev parent reply other threads:[~2019-01-10 15:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-10 12:26 [PATCH 1/2] gpio: mvebu: implement get_direction Baruch Siach
2019-01-10 12:26 ` [PATCH 2/2] PCI: armada8k: don't toggle reset twice Baruch Siach
2019-01-10 12:55 ` Andrew Lunn
2019-01-10 13:05 ` Baruch Siach
2019-01-10 13:19 ` Andrew Lunn
2019-01-10 15:57 ` Baruch Siach
2019-01-13 12:38 ` Baruch Siach
2019-01-13 15:40 ` Andrew Lunn
2019-01-13 18:42 ` Baruch Siach
2019-01-13 23:35 ` Linus Walleij
2019-01-14 7:19 ` Baruch Siach
2019-01-10 15:20 ` Linus Walleij [this message]
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