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Mon, 28 Oct 2024 10:40:20 -0700 (PDT) Received: from localhost ([2001:4091:a245:81f4:340d:1a9d:1fa6:531f]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4318b5431c9sm147417555e9.0.2024.10.28.10.40.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Oct 2024 10:40:19 -0700 (PDT) From: Markus Schneider-Pargmann Date: Mon, 28 Oct 2024 18:38:07 +0100 Subject: [PATCH v5 1/9] dt-bindings: can: m_can: Add wakeup properties Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241028-topic-mcan-wakeup-source-v6-12-v5-1-33edc0aba629@baylibre.com> References: <20241028-topic-mcan-wakeup-source-v6-12-v5-0-33edc0aba629@baylibre.com> In-Reply-To: <20241028-topic-mcan-wakeup-source-v6-12-v5-0-33edc0aba629@baylibre.com> To: Chandrasekar Ramakrishnan , Marc Kleine-Budde , Vincent Mailhol , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Nishanth Menon , Vignesh Raghavendra , Tero Kristo Cc: linux-can@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Matthias Schiffer , Vishal Mahaveer , Kevin Hilman , Dhruva Gole , Simon Horman , Vincent MAILHOL , Markus Schneider-Pargmann , Krzysztof Kozlowski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1874; i=msp@baylibre.com; h=from:subject:message-id; bh=Jw+WdBzdeJ1ejN6JFooZdebJTss0hVEiqW0IkRTOyf4=; b=owGbwMvMwCGm0rPl0RXRdfaMp9WSGNLlzwSUGSpPS0vrUKo/MalQaG9c6eXD7a217xauk64xV vQ8/XFnRykLgxgHg6yYIsvdDwvf1cldXxCx7pEjzBxWJpAhDFycAjCRkxGMDPtK5r8O7H7EI3f9 tZXC1OXX9n22mT9R+OvnC/Pbwmd+WxXLyHA8SLDz636BllYXl6eGgh6izRv5wh6Un0/dE2Pd9P/ gOkYA X-Developer-Key: i=msp@baylibre.com; a=openpgp; fpr=BADD88DB889FDC3E8A3D5FE612FA6A01E0A45B41 m_can can be a wakeup source on some devices. Especially on some of the am62* SoCs pins, connected to m_can in the mcu, can be used to wakeup the SoC. The wakeup-source property defines on which devices m_can can be used for wakeup. The pins associated with m_can have to have a special configuration to be able to wakeup the SoC. This configuration is described in the wakeup pinctrl state while the default state describes the default configuration. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Markus Schneider-Pargmann Reviewed-by: Dhruva Gole --- .../devicetree/bindings/net/can/bosch,m_can.yaml | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml index c4887522e8fe97c3947357b4dbd4ecf20ee8100a..0c1f9fa7371897d45539ead49c9d290fb4966f30 100644 --- a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml +++ b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml @@ -106,6 +106,22 @@ properties: maximum: 32 minItems: 1 + pinctrl-0: + description: Default pinctrl state + + pinctrl-1: + description: Wakeup pinctrl state + + pinctrl-names: + description: + When present should contain at least "default" describing the default pin + states. The second state called "wakeup" describes the pins in their + wakeup configuration required to exit sleep states. + minItems: 1 + items: + - const: default + - const: wakeup + power-domains: description: Power domain provider node and an args specifier containing @@ -122,6 +138,8 @@ properties: minItems: 1 maxItems: 2 + wakeup-source: true + required: - compatible - reg From patchwork Mon Oct 28 17:38:08 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Schneider-Pargmann X-Patchwork-Id: 2003424 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.a=rsa-sha256 header.s=20230601 header.b=GjDbp/tZ; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:45d1:ec00::1; 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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Nishanth Menon , Vignesh Raghavendra , Tero Kristo Cc: linux-can@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Matthias Schiffer , Vishal Mahaveer , Kevin Hilman , Dhruva Gole , Simon Horman , Vincent MAILHOL , Markus Schneider-Pargmann , Krzysztof Kozlowski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1211; i=msp@baylibre.com; h=from:subject:message-id; bh=UPDN5Sq6sr7oOOH4G9BvBLb/9GgPBe4IrDFtGwTay8A=; b=owGbwMvMwCGm0rPl0RXRdfaMp9WSGNLlz4Run/jwReX7GwrBXQwK7SZ2pn9mW29ZJKfoziIyX +yHmcGLjlIWBjEOBlkxRZa7Hxa+q5O7viBi3SNHmDmsTCBDGLg4BWAiqVkMf7jENx4SjstJted9 xanLYlMR9vmuZ992XZeNc/9d45LmPsvI0Nh9nXNu+tu+R2vOqZ7Zc/Hysj/vT72qXLlL2fDqW/4 3U9gA X-Developer-Key: i=msp@baylibre.com; a=openpgp; fpr=BADD88DB889FDC3E8A3D5FE612FA6A01E0A45B41 The m_can unit can be integrated in different ways. For AM62 the unit is integrated in different parts of the system (MCU or Main domain) and can be powered by different external power sources. For example on am62-lp-sk mcu_mcan0 and mcu_mcan1 are powered through VDDSHV_CANUART by an external regulator. To be able to describe these relationships, add a vio-supply property to this binding. Acked-by: Krzysztof Kozlowski Signed-off-by: Markus Schneider-Pargmann Reviewed-by: Dhruva Gole --- Documentation/devicetree/bindings/net/can/bosch,m_can.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml index 0c1f9fa7371897d45539ead49c9d290fb4966f30..aac2add319e240f4f561b755f41bf267b807ebcd 100644 --- a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml +++ b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml @@ -140,6 +140,10 @@ properties: wakeup-source: true + vio-supply: + description: + Reference to the main power supply of the unit. + required: - compatible - reg