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| author |   Sergio Paracuellos <sergio.paracuellos@gmail.com> | 2018-05-25 18:54:53 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-06-01 11:17:06 +0200 |
| commit | 94832e079521ba7275464b856506d51ba45a5a17 (patch) | |
| tree | 0bfba64af67c6164a1876f3fac2cbd6fd2cfb584 /drivers/staging | |
| parent | staging: mt7621-dts: add missing properties to gpio node (diff) | |
| download | linux-dev-94832e079521ba7275464b856506d51ba45a5a17.tar.xz linux-dev-94832e079521ba7275464b856506d51ba45a5a17.zip | |
staging: mt7621-gpio: dt-bindings: complete documentation for the gpio
This commit reviews and complete documentation for gpio related stuff
in the mt7621 device. It should be complete now.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/mt7621-gpio/mediatek,mt7621-gpio.txt | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/staging/mt7621-gpio/mediatek,mt7621-gpio.txt b/drivers/staging/mt7621-gpio/mediatek,mt7621-gpio.txt index af640924585f..94caba74de12 100644 --- a/drivers/staging/mt7621-gpio/mediatek,mt7621-gpio.txt +++ b/drivers/staging/mt7621-gpio/mediatek,mt7621-gpio.txt @@ -13,15 +13,17 @@ Required properties for the top level node: - "mediatek,mt7621-gpio" for Mediatek controllers - reg : Physical base address and length of the controller's registers - interrupt-parent : phandle of the parent interrupt controller. -- interrupts = Interrupt specifier for the controllers interrupt +- interrupts : Interrupt specifier for the controllers interrupt. +- interrupt-controller : Mark the device node as an interrupt controller. +- #interrupt-cells : Should be 1. The first cell is the GPIO number. Required properties for the GPIO bank node: - compatible: - "mediatek,mt7621-gpio-bank" for Mediatek banks -- #gpio-cells : Should be two. - - first cell is the pin number - - second cell is used to specify optional parameters (unused) -- gpio-controller : Marks the device node as a GPIO controller +- #gpio-cells : Should be two. The first cell is the GPIO pin number and the + second cell specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. + Only the GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported. +- gpio-controller : Marks the device node as a GPIO controller. - reg : The id of the bank that the node describes. Example: @@ -34,6 +36,8 @@ Example: interrupt-parent = <&gic>; interrupts = <GIC_SHARED 12 IRQ_TYPE_LEVEL_HIGH>; + interrupt-controller; + #interrupt-cells = <1>; gpio0: bank@0 { reg = <0>; |