From: Baruch Siach <baruch@tkos.co.il>
To: Dave Stevenson <dave.stevenson@raspberrypi.org>,
Eric Anholt <eric@anholt.net>,
Stefan Wahren <stefan.wahren@i2se.com>,
Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-rpi-kernel@lists.infradead.org, devicetree@vger.kernel.org,
Baruch Siach <baruch@tkos.co.il>
Subject: [PATCH 0/4] gpio: driver for the RPi3 GPIO expander
Date: Tue, 2 Jan 2018 15:19:17 +0200 [thread overview]
Message-ID: <cover.1514898134.git.baruch@tkos.co.il> (raw)
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.
Baruch Siach (3):
ARM: bcm2835: sync firmware properties with downstream
dt-bindings: gpio: add raspberry pi GPIO expander binding
ARM: dts: bcm2837-rpi-3-b: add GPIO expander
Dave Stevenson (1):
bcm2835-gpio-exp: Driver for GPIO expander via mailbox service
.../bindings/gpio/brcm,bcm2835-expgpio.txt | 24 ++
arch/arm/boot/dts/bcm2837-rpi-3-b.dts | 10 +
drivers/gpio/Kconfig | 7 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-bcm-exp.c | 254 +++++++++++++++++++++
include/soc/bcm2835/raspberrypi-firmware.h | 18 ++
6 files changed, 314 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/brcm,bcm2835-expgpio.txt
create mode 100644 drivers/gpio/gpio-bcm-exp.c
--
2.15.1
WARNING: multiple messages have this Message-ID (diff)
From: baruch@tkos.co.il (Baruch Siach)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/4] gpio: driver for the RPi3 GPIO expander
Date: Tue, 2 Jan 2018 15:19:17 +0200 [thread overview]
Message-ID: <cover.1514898134.git.baruch@tkos.co.il> (raw)
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.
Baruch Siach (3):
ARM: bcm2835: sync firmware properties with downstream
dt-bindings: gpio: add raspberry pi GPIO expander binding
ARM: dts: bcm2837-rpi-3-b: add GPIO expander
Dave Stevenson (1):
bcm2835-gpio-exp: Driver for GPIO expander via mailbox service
.../bindings/gpio/brcm,bcm2835-expgpio.txt | 24 ++
arch/arm/boot/dts/bcm2837-rpi-3-b.dts | 10 +
drivers/gpio/Kconfig | 7 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-bcm-exp.c | 254 +++++++++++++++++++++
include/soc/bcm2835/raspberrypi-firmware.h | 18 ++
6 files changed, 314 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/brcm,bcm2835-expgpio.txt
create mode 100644 drivers/gpio/gpio-bcm-exp.c
--
2.15.1
next reply other threads:[~2018-01-02 13:21 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-02 13:19 Baruch Siach [this message]
2018-01-02 13:19 ` [PATCH 0/4] gpio: driver for the RPi3 GPIO expander 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 ` [PATCH 0/4] gpio: driver for the RPi3 " Stefan Wahren
2018-01-02 18:05 ` Stefan Wahren
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