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Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , linux-pm@vger.kernel.org, devicetree@vger.kernel.org, =?utf-8?q?S=C3=B8ren_Andersen?= Subject: [PATCH v2 4/8] dt-bindings: power: reset: add bindings for NVMEM hardware storing PSCR Data Date: Wed, 24 Jan 2024 13:22:00 +0100 Message-Id: <20240124122204.730370-5-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240124122204.730370-1-o.rempel@pengutronix.de> References: <20240124122204.730370-1-o.rempel@pengutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1788974471649273266 X-GMAIL-MSGID: 1788974471649273266 Add device tree bindings that describe hardware implementations of Non-Volatile Memory (NVMEM) used for storing Power State Change Reasons (PSCR). Signed-off-by: Oleksij Rempel --- .../bindings/power/reset/pscrr-nvmem.yaml | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/reset/pscrr-nvmem.yaml diff --git a/Documentation/devicetree/bindings/power/reset/pscrr-nvmem.yaml b/Documentation/devicetree/bindings/power/reset/pscrr-nvmem.yaml new file mode 100644 index 000000000000..779920dea283 --- /dev/null +++ b/Documentation/devicetree/bindings/power/reset/pscrr-nvmem.yaml @@ -0,0 +1,53 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/power/reset/pscrr-nvmem.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Generic NVMEM Power State Change Reason Recorder + +maintainers: + - Oleksij Rempel + +description: This binding describes the Non-Volatile Memory (NVMEM) hardware + that stores Power State Change Reasons (PSCR). + +allOf: + - $ref: pscrr.yaml# + +properties: + compatible: + const: pscrr-nvmem + + nvmem-cells: + description: | + A phandle pointing to the nvmem-cells node where the power state change + reasons are stored. + maxItems: 1 + + nvmem-cell-names: + items: + - const: pscr + + pscr-under-voltage: true + pscr-over-current: true + pscr-regulator-failure: true + pscr-over-temperature: true + +required: + - compatible + - nvmem-cells + - nvmem-cell-names + +additionalProperties: false + +examples: + - | + power-state-change-reason { + compatible = "pscrr-nvmem"; + nvmem-cells = <&pscr_cell>; + nvmem-cell-names = "pscr"; + pscr-under-voltage = <1>; + pscr-over-temperature = <2>; + }; +...