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Sat, 14 Dec 2019 10:00:33 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 4F28F10002A; Sat, 14 Dec 2019 10:00:28 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag3node3.st.com [10.75.127.9]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 359E9220C68; Sat, 14 Dec 2019 10:00:28 +0100 (CET) Received: from localhost (10.75.127.49) by SFHDAG3NODE3.st.com (10.75.127.9) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Sat, 14 Dec 2019 10:00:27 +0100 From: Benjamin Gaignard To: , , , , Subject: [PATCH v2] dt-bindings: rtc: Convert stm32 rtc bindings to json-schema Date: Sat, 14 Dec 2019 10:00:25 +0100 Message-ID: <20191214090025.10648-1-benjamin.gaignard@st.com> X-Mailer: git-send-email 2.15.0 MIME-Version: 1.0 X-Originating-IP: [10.75.127.49] X-ClientProxiedBy: SFHDAG2NODE3.st.com (10.75.127.6) To SFHDAG3NODE3.st.com (10.75.127.9) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-12-14_01:2019-12-13,2019-12-14 signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191214_010049_433170_64218A79 X-CRM114-Status: GOOD ( 18.27 ) X-Spam-Score: -0.9 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [62.209.51.94 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain X-BeenThere: linux-arm-kernel@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-rtc@vger.kernel.org, devicetree@vger.kernel.org, Benjamin Gaignard , linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Convert the STM32 RTC binding to DT schema format using json-schema Signed-off-by: Benjamin Gaignard --- changes in version 2: - remove useless type definitions - move properties definitions in the core of the yaml .../devicetree/bindings/rtc/st,stm32-rtc.txt | 61 --------- .../devicetree/bindings/rtc/st,stm32-rtc.yaml | 139 +++++++++++++++++++++ 2 files changed, 139 insertions(+), 61 deletions(-) delete mode 100644 Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt create mode 100644 Documentation/devicetree/bindings/rtc/st,stm32-rtc.yaml diff --git a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt deleted file mode 100644 index 130ca5b98253..000000000000 --- a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt +++ /dev/null @@ -1,61 +0,0 @@ -STM32 Real Time Clock - -Required properties: -- compatible: can be one of the following: - - "st,stm32-rtc" for devices compatible with stm32(f4/f7). - - "st,stm32h7-rtc" for devices compatible with stm32h7. - - "st,stm32mp1-rtc" for devices compatible with stm32mp1. -- reg: address range of rtc register set. -- clocks: can use up to two clocks, depending on part used: - - "rtc_ck": RTC clock source. - - "pclk": RTC APB interface clock. - It is not present on stm32(f4/f7). - It is required on stm32(h7/mp1). -- clock-names: must be "rtc_ck" and "pclk". - It is required on stm32(h7/mp1). -- interrupts: rtc alarm interrupt. On stm32mp1, a second interrupt is required - for rtc alarm wakeup interrupt. -- st,syscfg: phandle/offset/mask triplet. The phandle to pwrcfg used to - access control register at offset, and change the dbp (Disable Backup - Protection) bit represented by the mask, mandatory to disable/enable backup - domain (RTC registers) write protection. - It is required on stm32(f4/f7/h7). - -Optional properties (to override default rtc_ck parent clock on stm32(f4/f7/h7): -- assigned-clocks: reference to the rtc_ck clock entry. -- assigned-clock-parents: phandle of the new parent clock of rtc_ck. - -Example: - - rtc: rtc@40002800 { - compatible = "st,stm32-rtc"; - reg = <0x40002800 0x400>; - clocks = <&rcc 1 CLK_RTC>; - assigned-clocks = <&rcc 1 CLK_RTC>; - assigned-clock-parents = <&rcc 1 CLK_LSE>; - interrupt-parent = <&exti>; - interrupts = <17 1>; - st,syscfg = <&pwrcfg 0x00 0x100>; - }; - - rtc: rtc@58004000 { - compatible = "st,stm32h7-rtc"; - reg = <0x58004000 0x400>; - clocks = <&rcc RTCAPB_CK>, <&rcc RTC_CK>; - clock-names = "pclk", "rtc_ck"; - assigned-clocks = <&rcc RTC_CK>; - assigned-clock-parents = <&rcc LSE_CK>; - interrupt-parent = <&exti>; - interrupts = <17 1>; - interrupt-names = "alarm"; - st,syscfg = <&pwrcfg 0x00 0x100>; - }; - - rtc: rtc@5c004000 { - compatible = "st,stm32mp1-rtc"; - reg = <0x5c004000 0x400>; - clocks = <&rcc RTCAPB>, <&rcc RTC>; - clock-names = "pclk", "rtc_ck"; - interrupts-extended = <&intc GIC_SPI 3 IRQ_TYPE_NONE>, - <&exti 19 1>; - }; diff --git a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.yaml b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.yaml new file mode 100644 index 000000000000..0a54296d7218 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.yaml @@ -0,0 +1,139 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/rtc/st,stm32-rtc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: STMicroelectronics STM32 Real Time Clock Bindings + +maintainers: + - Gabriel Fernandez + +properties: + compatible: + enum: + - st,stm32-rtc + - st,stm32h7-rtc + - st,stm32mp1-rtc + + reg: + maxItems: 1 + + clocks: + minItems: 1 + maxItems: 2 + + clock-names: + items: + - const: pclk + - const: rtc_ck + + interrupts: + maxItems: 1 + + st,syscfg: + allOf: + - $ref: "/schemas/types.yaml#/definitions/phandle-array" + - items: + minItems: 3 + maxItems: 3 + description: | + Phandle/offset/mask triplet. The phandle to pwrcfg used to + access control register at offset, and change the dbp (Disable Backup + Protection) bit represented by the mask, mandatory to disable/enable backup + domain (RTC registers) write protection. + + assigned-clocks: + description: | + override default rtc_ck parent clock reference to the rtc_ck clock entry + maxItems: 1 + + assigned-clock-parents: + description: | + override default rtc_ck parent clock phandle of the new parent clock of rtc_ck + maxItems: 1 + +allOf: + - if: + properties: + compatible: + contains: + const: st,stm32-rtc + + then: + properties: + clocks: + minItems: 1 + maxItems: 1 + + clock-names: false + + required: + - st,syscfg + + - if: + properties: + compatible: + contains: + const: st,stm32h7-rtc + + then: + properties: + clocks: + minItems: 2 + maxItems: 2 + + required: + - clock-names + - st,syscfg + + - if: + properties: + compatible: + contains: + const: st,stm32mp1-rtc + + then: + properties: + clocks: + minItems: 2 + maxItems: 2 + + assigned-clocks: false + assigned-clock-parents: false + + required: + - clock-names + +required: + - compatible + - reg + - clocks + - interrupts + +examples: + - | + #include + #include + rtc@40002800 { + compatible = "st,stm32-rtc"; + reg = <0x40002800 0x400>; + clocks = <&rcc 1 CLK_RTC>; + assigned-clocks = <&rcc 1 CLK_RTC>; + assigned-clock-parents = <&rcc 1 CLK_LSE>; + interrupt-parent = <&exti>; + interrupts = <17 1>; + st,syscfg = <&pwrcfg 0x00 0x100>; + }; + + #include + #include + rtc@5c004000 { + compatible = "st,stm32mp1-rtc"; + reg = <0x5c004000 0x400>; + clocks = <&rcc RTCAPB>, <&rcc RTC>; + clock-names = "pclk", "rtc_ck"; + interrupts = ; + }; + +...