[PATCH v13 08/17] dt-bindings: fix sifive gpio properties
From: Damien Le Moal <hidden>
Date: 2021-01-18 02:05:57
Also in:
linux-riscv
Subsystem:
gpio subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Linus Walleij, Bartosz Golaszewski, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
The sifive gpio IP block supports up to 32 GPIOs. Reflect that in the interrupts property description and maxItems. Also add the standard ngpios property to describe the number of GPIOs available on the implementation. Also add the "canaan,k210-gpiohs" compatible string to indicate the use of this gpio controller in the Canaan Kendryte K210 SoC. If this compatible string is used, do not define the clocks property as required as the K210 SoC does not have a software controllable clock for the Sifive gpio IP block. Cc: Paul Walmsley <redacted> Cc: Rob Herring <robh@kernel.org> Cc: devicetree@vger.kernel.org Signed-off-by: Damien Le Moal <redacted> --- .../devicetree/bindings/gpio/sifive,gpio.yaml | 21 ++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml b/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
index ab22056f8b44..2cef18ca737c 100644
--- a/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml@@ -16,6 +16,7 @@ properties: - enum: - sifive,fu540-c000-gpio - sifive,fu740-c000-gpio + - canaan,k210-gpiohs - const: sifive,gpio0 reg:
@@ -23,9 +24,9 @@ properties: interrupts: description: - interrupt mapping one per GPIO. Maximum 16 GPIOs. + interrupt mapping one per GPIO. Maximum 32 GPIOs. minItems: 1 - maxItems: 16 + maxItems: 32 interrupt-controller: true
@@ -38,6 +39,10 @@ properties: "#gpio-cells": const: 2 + ngpios: + minimum: 1 + maximum: 32 + gpio-controller: true required:
@@ -46,10 +51,20 @@ required: - interrupts - interrupt-controller - "#interrupt-cells" - - clocks - "#gpio-cells" - gpio-controller +if: + properties: + compatible: + contains: + enum: + - sifive,fu540-c000-gpio + - sifive,fu740-c000-gpio +then: + required: + - clocks + additionalProperties: false examples:
--
2.29.2