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Wed, 22 Feb 2023 11:40:10 +0000 From: Chancel Liu To: lgirdwood@gmail.com, broonie@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, perex@perex.cz, tiwai@suse.com, ckeepax@opensource.cirrus.com, patches@opensource.cirrus.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH 2/4] ASoC: dt-bindings: wlf,wm8524: Add a property to specify power up sequency time Date: Wed, 22 Feb 2023 19:39:43 +0800 Message-Id: <20230222113945.3390672-2-chancel.liu@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230222113945.3390672-1-chancel.liu@nxp.com> References: <20230222113945.3390672-1-chancel.liu@nxp.com> X-ClientProxiedBy: SI2PR01CA0033.apcprd01.prod.exchangelabs.com (2603:1096:4:192::23) To VI1PR04MB4222.eurprd04.prod.outlook.com (2603:10a6:803:46::19) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: VI1PR04MB4222:EE_|DBBPR04MB7930:EE_ X-MS-Office365-Filtering-Correlation-Id: fe21a4c0-040e-40bb-80e6-08db14c98d83 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: Chancel Liu X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: This property specifies power up to audio out time. It's necessary beacause this device has to wait some time before ready to output audio after MCLK, BCLK and MUTE=1 are enabled. For more details about the timing constraints, please refer to WTN0302 on https://www.cirrus.com/products/wm8524/ Signed-off-by: Chancel Liu --- .../devicetree/bindings/sound/wlf,wm8524.yaml | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/wlf,wm8524.yaml b/Documentation/devicetree/bindings/sound/wlf,wm8524.yaml index 09c54cc7de95..54b4da5470e4 100644 --- a/Documentation/devicetree/bindings/sound/wlf,wm8524.yaml +++ b/Documentation/devicetree/bindings/sound/wlf,wm8524.yaml @@ -21,6 +21,15 @@ properties: description: a GPIO spec for the MUTE pin. + wlf,power-up-delay-ms: + maximum: 1500 + default: 100 + description: + Power up sequency delay time in millisecond. It specifies power up to + audio out time. For more details about the timing constraints of this + device, please refer to WTN0302 on + https://www.cirrus.com/products/wm8524/. + required: - compatible - wlf,mute-gpios @@ -34,4 +43,5 @@ examples: wm8524: codec { compatible = "wlf,wm8524"; wlf,mute-gpios = <&gpio1 8 GPIO_ACTIVE_LOW>; + wlf,power-up-delay-ms = <300>; };