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[176.74.132.138]) by smtp.gmail.com with ESMTPSA id t8-20020a170906178800b008dcf89a72d7sm5972282eje.147.2023.03.01.06.28.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Mar 2023 06:28:49 -0800 (PST) From: =?utf-8?q?Martin_Za=C5=A5ovi=C4=8D?= To: linux-kernel@vger.kernel.org Cc: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, gregkh@linuxfoundation.org, airlied@redhat.com, dipenp@nvidia.com, treding@nvidia.com, mwen@igalia.com, fmdefrancesco@gmail.com, arnd@arndb.de, bvanassche@acm.org, ogabbay@kernel.org, axboe@kernel.dk, mathieu.poirier@linaro.org, linux@zary.sk, masahiroy@kernel.org, yangyicong@hisilicon.com, dan.j.williams@intel.com, jacek.lawrynowicz@linux.intel.com, benjamin.tissoires@redhat.com, devicetree@vger.kernel.org, furong.zhou@linux.intel.com, andriy.shevchenko@intel.com, linus.walleij@linaro.org, =?utf-8?q?Martin_Za?= =?utf-8?q?=C5=A5ovi=C4=8D?= Subject: [PATCHv3 1/4] dt-bindings: wiegand: add Wiegand controller common properties Date: Wed, 1 Mar 2023 15:28:32 +0100 Message-Id: <20230301142835.19614-2-m.zatovic1@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230301142835.19614-1-m.zatovic1@gmail.com> References: <20230301142835.19614-1-m.zatovic1@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1759175987443506136?= X-GMAIL-MSGID: =?utf-8?q?1759175987443506136?= Wiegand bus is defined by a Wiegand controller node. This node can contain one or more device nodes for devices attached to the controller(it is advised to only connect one device as Wiegand is a point-to-point bus). Wiegand controller needs to specify several attributes such as the pulse length in order to function properly. These attributes are documented here. Acked-by: Linus Walleij Signed-off-by: Martin Zaťovič Reviewed-by: Rob Herring --- .../bindings/wiegand/wiegand-controller.yaml | 39 +++++++++++++++++++ MAINTAINERS | 5 +++ 2 files changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/wiegand/wiegand-controller.yaml diff --git a/Documentation/devicetree/bindings/wiegand/wiegand-controller.yaml b/Documentation/devicetree/bindings/wiegand/wiegand-controller.yaml new file mode 100644 index 000000000000..df985cb3045a --- /dev/null +++ b/Documentation/devicetree/bindings/wiegand/wiegand-controller.yaml @@ -0,0 +1,39 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/wiegand/wiegand-controller.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Wiegand Generic Controller Common Properties + +maintainers: + - Martin Zaťovič + +description: + Wiegand busses can be described with a node for the Wiegand controller device + and a set of child nodes for each SPI slave on the bus. + +properties: + $nodename: + pattern: "^wiegand(@.*|-[0-9a-f])?$" + + pulse-len-us: + description: | + Length of the low pulse in microseconds. + + interval-len-us: + description: | + Length of a whole bit (both the pulse and the high phase) in microseconds. + + frame-gap-us: + description: | + Length of the last bit of a frame (both the pulse and the high phase) in + microseconds. + +required: + - compatible + - pulse-len-us + - interval-len-us + - frame-gap-us + +additionalProperties: true diff --git a/MAINTAINERS b/MAINTAINERS index b0db911207ba..1f6f6d236f0c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -22512,6 +22512,11 @@ L: linux-rtc@vger.kernel.org S: Maintained F: drivers/rtc/rtc-sd3078.c +WIEGAND BUS DRIVER +M: Martin Zaťovič +S: Maintained +F: Documentation/devicetree/bindings/wiegand/wiegand-controller.yaml + WIIMOTE HID DRIVER M: David Rheinsberg L: linux-input@vger.kernel.org