From: Stefan Wahren <stefan.wahren-eS4NqCHxEME@public.gmane.org>
To: Baruch Siach <baruch-NswTu9S1W3P6gbPvEgmw2w@public.gmane.org>
Cc: linux-gpio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-rpi-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Linus Walleij
<linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Dave Stevenson
<dave.stevenson-FnsA7b+Nu9XbIbC87yuRow@public.gmane.org>,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Eric Anholt <eric-WhKQ6XTQaPysTnJN9+BGXg@public.gmane.org>
Subject: Re: [PATCH 0/4] gpio: driver for the RPi3 GPIO expander
Date: Tue, 2 Jan 2018 19:05:38 +0100 (CET) [thread overview]
Message-ID: <1090269396.181215.1514916338795@email.1und1.de> (raw)
In-Reply-To: <cover.1514898134.git.baruch-NswTu9S1W3P6gbPvEgmw2w@public.gmane.org>
Hi Baruch,
> Baruch Siach <baruch-NswTu9S1W3P6gbPvEgmw2w@public.gmane.org> hat am 2. Januar 2018 um 14:19 geschrieben:
>
>
> The Raspberry Pi 3 has a GPIO expander that controls, among others, the
> activity LED, and the camera connector GPIOs. The GPIO expander on an I2C bus
> that is not directly controlled from the ARM core. The VC4 firmware controls
> the I2C bus, and allows the ARM core to set/get GPIO settings over its mailbox
> interface.
>
> This series adds support for the RPi3 expander.
>
> The driver is ported from the downstream kernel at
> https://github.com/raspberrypi/linux/, branch rpi-4.9.y.
>
thanks for trying to upstream this. There has been attemps by Eric Anholt (September 2016) and Michael Zoran (March 2017). Some problems like get_direction() has been fixed, but not all of them.
So please look at the followings links first:
https://patchwork.kernel.org/patch/9339859/
https://patchwork.kernel.org/patch/9339857/
http://lists.infradead.org/pipermail/linux-rpi-kernel/2017-March/005903.html
Stefan
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WARNING: multiple messages have this Message-ID (diff)
From: stefan.wahren@i2se.com (Stefan Wahren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/4] gpio: driver for the RPi3 GPIO expander
Date: Tue, 2 Jan 2018 19:05:38 +0100 (CET) [thread overview]
Message-ID: <1090269396.181215.1514916338795@email.1und1.de> (raw)
In-Reply-To: <cover.1514898134.git.baruch@tkos.co.il>
Hi Baruch,
> Baruch Siach <baruch@tkos.co.il> hat am 2. Januar 2018 um 14:19 geschrieben:
>
>
> The Raspberry Pi 3 has a GPIO expander that controls, among others, the
> activity LED, and the camera connector GPIOs. The GPIO expander on an I2C bus
> that is not directly controlled from the ARM core. The VC4 firmware controls
> the I2C bus, and allows the ARM core to set/get GPIO settings over its mailbox
> interface.
>
> This series adds support for the RPi3 expander.
>
> The driver is ported from the downstream kernel at
> https://github.com/raspberrypi/linux/, branch rpi-4.9.y.
>
thanks for trying to upstream this. There has been attemps by Eric Anholt (September 2016) and Michael Zoran (March 2017). Some problems like get_direction() has been fixed, but not all of them.
So please look at the followings links first:
https://patchwork.kernel.org/patch/9339859/
https://patchwork.kernel.org/patch/9339857/
http://lists.infradead.org/pipermail/linux-rpi-kernel/2017-March/005903.html
Stefan
next prev parent reply other threads:[~2018-01-02 18:05 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-02 13:19 [PATCH 0/4] gpio: driver for the RPi3 GPIO expander Baruch Siach
2018-01-02 13:19 ` Baruch Siach
2018-01-02 13:19 ` [PATCH 1/4] ARM: bcm2835: sync firmware properties with downstream Baruch Siach
2018-01-02 13:19 ` Baruch Siach
2018-01-02 13:19 ` [PATCH 2/4] dt-bindings: gpio: add raspberry pi GPIO expander binding Baruch Siach
2018-01-02 13:19 ` Baruch Siach
2018-01-02 18:26 ` Stefan Wahren
2018-01-02 18:26 ` Stefan Wahren
[not found] ` <860502005.181510.1514917560724-7tX72C7vayboQLBSYMtkGA@public.gmane.org>
2018-01-04 19:35 ` Baruch Siach
2018-01-04 19:35 ` Baruch Siach
2018-01-02 13:19 ` [PATCH 3/4] bcm2835-gpio-exp: Driver for GPIO expander via mailbox service Baruch Siach
2018-01-02 13:19 ` Baruch Siach
2018-01-02 18:49 ` Stefan Wahren
2018-01-02 18:49 ` Stefan Wahren
[not found] ` <2013811470.181895.1514918984637-7tX72C7vayboQLBSYMtkGA@public.gmane.org>
2018-01-09 13:41 ` Baruch Siach
2018-01-09 13:41 ` Baruch Siach
2018-01-09 20:15 ` Stefan Wahren
2018-01-09 20:15 ` Stefan Wahren
2018-01-03 10:08 ` Linus Walleij
2018-01-03 10:08 ` Linus Walleij
2018-01-10 3:45 ` Baruch Siach
2018-01-10 3:45 ` Baruch Siach
2018-01-11 9:39 ` Linus Walleij
2018-01-11 9:39 ` Linus Walleij
[not found] ` <cover.1514898134.git.baruch-NswTu9S1W3P6gbPvEgmw2w@public.gmane.org>
2018-01-02 13:19 ` [PATCH 4/4] ARM: dts: bcm2837-rpi-3-b: add GPIO expander Baruch Siach
2018-01-02 13:19 ` Baruch Siach
[not found] ` <a29df633ee568e150c150debde66c0783a57c70a.1514898134.git.baruch-NswTu9S1W3P6gbPvEgmw2w@public.gmane.org>
2018-01-02 19:03 ` Stefan Wahren
2018-01-02 19:03 ` Stefan Wahren
[not found] ` <1524381852.182115.1514919793281-7tX72C7vayboQLBSYMtkGA@public.gmane.org>
2018-01-03 20:17 ` Stefan Wahren
2018-01-03 20:17 ` Stefan Wahren
2018-01-03 20:29 ` Phil Elwell
2018-01-03 20:29 ` Phil Elwell
[not found] ` <3993684b-5b99-6c38-6247-999f7564762b-FnsA7b+Nu9XbIbC87yuRow@public.gmane.org>
2018-01-04 3:06 ` Peter Robinson
2018-01-04 3:06 ` Peter Robinson
2018-01-02 18:05 ` Stefan Wahren [this message]
2018-01-02 18:05 ` [PATCH 0/4] gpio: driver for the RPi3 " Stefan Wahren
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