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| author | Baruch Siach <baruch@tkos.co.il> | 2018-02-20 13:19:32 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-02-22 13:48:31 +0100 |
| commit | 9777d8099a4a9df1625b4caaee1388c0158478c5 (patch) | |
| tree | 99dabb48aa5ec8060ebfaae89d0b0417c14a6a23 /drivers/gpio/gpio-raspberrypi-exp.c | |
| parent | soc: bcm2835: sync firmware properties with downstream (diff) | |
| download | linux-9777d8099a4a9df1625b4caaee1388c0158478c5.tar.xz linux-9777d8099a4a9df1625b4caaee1388c0158478c5.zip | |
dt-bindings: gpio: add raspberry pi GPIO expander binding
The Raspberry Pi 3 GPIO expander is controlled by the VC4 firmware over
I2C. The firmware mailbox interface allows the ARM core to control the
GPIO lines.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-raspberrypi-exp.c')
0 files changed, 0 insertions, 0 deletions