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[90.63.244.31]) by smtp.gmail.com with ESMTPSA id u6sm69659952wml.9.2019.08.01.06.56.52 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 01 Aug 2019 06:56:53 -0700 (PDT) From: Neil Armstrong To: robh+dt@kernel.org Subject: [RFC 8/9] dt-bindings: serial: meson-uart: convert to yaml Date: Thu, 1 Aug 2019 15:56:43 +0200 Message-Id: <20190801135644.12843-9-narmstrong@baylibre.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190801135644.12843-1-narmstrong@baylibre.com> References: <20190801135644.12843-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190801_065655_381112_4356F388 X-CRM114-Status: GOOD ( 14.34 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-serial@vger.kernel.org, Neil Armstrong Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+patchwork-linux-amlogic=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Neil Armstrong --- .../bindings/serial/amlogic,meson-uart.txt | 38 ---------- .../bindings/serial/amlogic,meson-uart.yaml | 75 +++++++++++++++++++ 2 files changed, 75 insertions(+), 38 deletions(-) delete mode 100644 Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt create mode 100644 Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt deleted file mode 100644 index c06c045126fc..000000000000 --- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt +++ /dev/null @@ -1,38 +0,0 @@ -Amlogic Meson SoC UART Serial Interface -======================================= - -The Amlogic Meson SoC UART Serial Interface is present on a large range -of SoCs, and can be present either in the "Always-On" power domain or the -"Everything-Else" power domain. - -The particularity of the "Always-On" Serial Interface is that the hardware -is active since power-on and does not need any clock gating and is usable -as very early serial console. - -Required properties: -- compatible : compatible: value should be different for each SoC family as : - - Meson6 : "amlogic,meson6-uart" - - Meson8 : "amlogic,meson8-uart" - - Meson8b : "amlogic,meson8b-uart" - - GX (GXBB, GXL, GXM) : "amlogic,meson-gx-uart" - eventually followed by : "amlogic,meson-ao-uart" if this UART interface - is in the "Always-On" power domain. -- reg : offset and length of the register set for the device. -- interrupts : identifier to the device interrupt -- clocks : a list of phandle + clock-specifier pairs, one for each - entry in clock names. -- clock-names : - * "xtal" for external xtal clock identifier - * "pclk" for the bus core clock, either the clk81 clock or the gate clock - * "baud" for the source of the baudrate generator, can be either the xtal - or the pclk. - -e.g. -uart_A: serial@84c0 { - compatible = "amlogic,meson-gx-uart"; - reg = <0x0 0x84c0 0x0 0x14>; - interrupts = ; - /* Use xtal as baud rate clock source */ - clocks = <&xtal>, <&clkc CLKID_UART0>, <&xtal>; - clock-names = "xtal", "pclk", "baud"; -}; diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml new file mode 100644 index 000000000000..e150e3504fa0 --- /dev/null +++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml @@ -0,0 +1,75 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2019 BayLibre, SAS +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/serial/amlogic,meson-uart.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Amlogic Meson SoC UART Serial Interface + +maintainers: + - Neil Armstrong + +description: | + The Amlogic Meson SoC UART Serial Interface is present on a large range + of SoCs, and can be present either in the "Always-On" power domain or the + "Everything-Else" power domain. + + The particularity of the "Always-On" Serial Interface is that the hardware + is active since power-on and does not need any clock gating and is usable + as very early serial console. + +properties: + compatible: + oneOf: + - description: Allways-on power domain UART controller + items: + - enum: + - amlogic,meson6-uart + - amlogic,meson8-uart + - amlogic,meson8b-uart + - amlogic,meson-gx-uart + - const: amlogic,meson-ao-uart + - description: Everything-Else power domain UART controller + enum: + - amlogic,meson6-uart + - amlogic,meson8-uart + - amlogic,meson8b-uart + - amlogic,meson-gx-uart + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + minItems: 3 + maxItems: 3 + + clock-names: + description: | + "xtal" for external xtal clock identifier + "pclk" for the bus core clock, either the clk81 clock or the gate clock + "baud" for the source of the baudrate generator, can be either the xtal + or the pclk. + items: + - const: xtal + - const: pclk + - const: baud + +required: + - compatible + - reg + - clocks + - clock-names + +examples: + - | + serial@84c0 { + compatible = "amlogic,meson-gx-uart"; + reg = <0x84c0 0x14>; + interrupts = <26>; + clocks = <&xtal>, <&pclk>, <&xtal>; + clock-names = "xtal", "pclk", "baud"; + };