From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Whitten Subject: [PATCH lora-next 3/4] dt-bindings: lora: sx125x: add clock bindings Date: Tue, 8 Jan 2019 17:41:31 +0900 Message-ID: <20190108084132.10214-3-ben.whitten@gmail.com> References: <20190108084132.10214-1-ben.whitten@gmail.com> Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Ben Whitten , Rob Herring , Mark Rutland , "David S. Miller" To: linux-lpwan@lists.infradead.org, afaerber@suse.de Return-path: In-Reply-To: <20190108084132.10214-1-ben.whitten@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org The sx125x consumes a 32MHz clock and if it is coupled with a sx130x concentrator may also provide a gated version of this 32MHz for the concentrator. In the example we connect to output 0 of "txco" clock source. The radio also provides a single clock output, hence "#clock-cells = <0>", named "clk32m" for consumption by the sx130x concentrator. Signed-off-by: Ben Whitten --- .../{ => net}/lora/semtech,sx125x.yaml | 27 +++++++++++++++++++ 1 file changed, 27 insertions(+) rename Documentation/devicetree/bindings/{ => net}/lora/semtech,sx125x.yaml (67%) diff --git a/Documentation/devicetree/bindings/lora/semtech,sx125x.yaml b/Documentation/devicetree/bindings/net/lora/semtech,sx125x.yaml similarity index 67% rename from Documentation/devicetree/bindings/lora/semtech,sx125x.yaml rename to Documentation/devicetree/bindings/net/lora/semtech,sx125x.yaml index 5eadec860b70..c2fb4ac06341 100644 --- a/Documentation/devicetree/bindings/lora/semtech,sx125x.yaml +++ b/Documentation/devicetree/bindings/net/lora/semtech,sx125x.yaml @@ -33,13 +33,40 @@ properties: description: The frequency of the SPI communication to the radio, in Hz. Maximum SPI frequency is 10MHz. + clocks: + maxItems: 1 + description: 32MHz clock provider + + clock-names: + items: + - const: txco + + clock-output-names: + items: + - const: clk32m + description: 32MHz output clock name + + '#clock-cells': + const: 0 + required: - compatible - reg examples: - | + tcxo: dummy32m { + compatible = "fixed-clock"; + clock-frequency = <32000000>; + clock-output-names = "tcxo"; + #clock-cells = <0>; + }; + radio0: lora@0 { compatible = "semtech,sx1257"; reg = <0>; + clocks = <&tcxo 0>; + clock-names = "tcxo"; + clock-output-names = "clk32m"; + #clock-cells = <0>; }; -- 2.17.1