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| author | Sean Wang <sean.wang@mediatek.com> | 2018-05-21 01:01:47 +0800 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-05-24 09:35:30 +0200 |
| commit | 6ee6fbde42f41fda10b610f81bbba7b3afea513f (patch) | |
| tree | cd888f7f99465c2203abfdaebe10208d529bd0ad /Documentation | |
| parent | c2b39deced784380e81f0e12c5ca7a6543cd8542 (diff) | |
| download | linux-0-day-6ee6fbde42f41fda10b610f81bbba7b3afea513f.tar.gz linux-0-day-6ee6fbde42f41fda10b610f81bbba7b3afea513f.tar.xz | |
dt-bindings: pinctrl: add external interrupt support to MT7622 pinctrl
Extend the capability of MT7622 pinctrl with adding EINT so that each
GPIO can be used to notify CPU when a signal state is changing on the
line as an external interrupt.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt index f18ed99f6e145..def8fcad89414 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt @@ -9,6 +9,16 @@ Required properties for the root node: - #gpio-cells: Should be two. The first cell is the pin number and the second is the GPIO flags. +Optional properties: +- interrupt-controller : Marks the device node as an interrupt controller + +If the property interrupt-controller is defined, following property is required +- reg-names: A string describing the "reg" entries. Must contain "eint". +- interrupts : The interrupt output from the controller. +- #interrupt-cells: Should be two. +- interrupt-parent: Phandle of the interrupt parent to which the external + GPIO interrupts are forwarded to. + Please refer to pinctrl-bindings.txt in this directory for details of the common pinctrl bindings used by client devices, including the meaning of the phrase "pin configuration node". |