From: Yang Li <yang.li@xxxxxxxxxxx> Add binding document to introduce power sequence of Amlogic WCN chips. Signed-off-by: Yang Li <yang.li@xxxxxxxxxxx> --- .../bindings/power/amlogic,w155s2-pwrseq.yaml | 62 ++++++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/Documentation/devicetree/bindings/power/amlogic,w155s2-pwrseq.yaml b/Documentation/devicetree/bindings/power/amlogic,w155s2-pwrseq.yaml new file mode 100644 index 000000000000..f99a775fcf9b --- /dev/null +++ b/Documentation/devicetree/bindings/power/amlogic,w155s2-pwrseq.yaml @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/power/amlogic,w155s2-pwrseq.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Amlogic power sequence for WCN chips + +maintainers: + - Yang Li <yang.li@xxxxxxxxxxx> + +description: + The Amlogic WCN chip contains discrete modules for WLAN and Bluetooth. Power on + Bluetooth and Wi-Fi respectively, including chip_en pull-up and bt_en pull-up, + and generation of the 32.768KHz clock. + +properties: + compatible: + oneOf: + - const: amlogic,w155s2-pwrseq + - items: + - enum: + - amlogic,w265s1-pwrseq + - amlogic,w265p1-pwrseq + - amlogic,w265s2-pwrseq + - const: amlogic,w155s2-pwrseq + + clocks: + maxItems: 1 + description: clock provided to the controller (32.768KHz) + + clock-names: + items: + - const: ext_clock + + amlogic,chip-enable-gpios: + maxItems: 1 + description: gpio specifier used to enable chipset + + amlogic,bt-enable-gpios: + maxItems: 1 + description: gpio specifier used to enable BT + +required: + - compatible + - clocks + - clock-names + - amlogic,chip-enable-gpios + - amlogic,bt-enable-gpios + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + wcn_pwrseq { + compatible = "amlogic,w155s2-pwrseq"; + clocks = <&extclk>; + clock-names = "ext_clock"; + amlogic,chip-enable-gpios = <&gpio 7 GPIO_ACTIVE_HIGH>; + amlogic,bt-enable-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>; + }; -- 2.42.0
