From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4FE24C433EF for ; Tue, 26 Apr 2022 19:32:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354115AbiDZTfr (ORCPT ); Tue, 26 Apr 2022 15:35:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34472 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354256AbiDZTfd (ORCPT ); Tue, 26 Apr 2022 15:35:33 -0400 Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 61DB2FE5EB for ; Tue, 26 Apr 2022 12:31:56 -0700 (PDT) Received: by mail-pl1-x62a.google.com with SMTP id j8so31137074pll.11 for ; Tue, 26 Apr 2022 12:31:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=mgMaBzrqlCjRGRam/EOt4zCiGdz7YdwH1DVFMVDfBXs=; b=4iSQaIpcTJHXcBSlJlEWJJA6caO4iGkaz8udUxWuH377Fy/420RlqSFPr0zuzJTrlI ow/Wqnjm31vAQUMgUQy/45uq1nhGdG557XYH+zrIUSAsq6ZwKoy7+8Dg6Tr3fWpFBXQu d94vjw7vYnLz14cGh3Uw/0y0V3gM+5QgvwDNsa/auS4Kfb0f67hpPqa7hyiuff2s0SLY NZHyaGBtuTCZG0mp2xqJLqyiodo1pzG2i8Q+kabrdjUWz/lLEFng35FBelfQerqeggBC To48LL5vy2ZrIfj3vPhQLuZBNt9htOroZJUjkp2dRQb4tmfT1WgwiU+g00VCKRKAwgrH /N6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=mgMaBzrqlCjRGRam/EOt4zCiGdz7YdwH1DVFMVDfBXs=; b=T5ommX0wdKTRus7TG1nNZ9zBBqRNMib0Tw8WSamgAHV1gdA0Vteg4ghF1FNRj/a10U U/XZAuiZ0TsKeqHl6KFW136I/re0TYzgVXuzZ2zKmHtfknDtJTfN/Bzh2We+wXjfgTID Rnv6xamnPfBqoJ9n9v6llKjAm97XNEVjY7O/w6v6hDJPf7b3bSWuc5AMQAUz1fhzu2xm c7zaxR8jPE/ugFwGDQMtel3YgJNkY3Duc3LtaEzFWp5rJxjU4LNaCqeMTmvTpcDTAQCL bYcoaWJJEfN+IyYEBIplctC7Q9JPRmYEy3cPVfNy7zvzT/2w23iv41oEBcDJAzozpnuG A8ww== X-Gm-Message-State: AOAM532XN4ATPntLbzLf/G8Waq3rjpZkIisVsxmmi79xKvX3D2E/uutO WuSLLbnELNu/4U0Y/QmS6EEBzg== X-Google-Smtp-Source: ABdhPJwWdeXDoRl1CnV+EVlepDxiTF9qYHgisD3NZHZGVmtsLKeF4TLs8wickLkRyt+RjPIQdF/iiA== X-Received: by 2002:a17:903:240f:b0:156:8e81:a0a3 with SMTP id e15-20020a170903240f00b001568e81a0a3mr24572132plo.13.1651001515895; Tue, 26 Apr 2022 12:31:55 -0700 (PDT) Received: from x1.hsd1.or.comcast.net ([2601:1c2:1001:7090:9bcd:e060:b370:70d8]) by smtp.gmail.com with ESMTPSA id v16-20020a62a510000000b0050759c9a891sm15793410pfm.6.2022.04.26.12.31.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 Apr 2022 12:31:55 -0700 (PDT) From: Drew Fustini To: Rob Herring , Krzysztof Kozlowski , Nishanth Menon , Santosh Shilimkar , Dave Gerlach , Tony Lindgren Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Drew Fustini , Keerthy Subject: [PATCH v2 1/2] dt-bindings: wkup-m3-ipc: Add ti,scale-data-fw property Date: Tue, 26 Apr 2022 12:32:52 -0700 Message-Id: <20220426193253.663582-2-dfustini@baylibre.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220426193253.663582-1-dfustini@baylibre.com> References: <20220426193253.663582-1-dfustini@baylibre.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Dave Gerlach Add documentation for ti,scale-data-fw property to enable I2C PMIC voltage scaling during deep sleep. The property contains the name of a binary file for the CM3 firmware to load. Based on previous work by Russ Dill. Signed-off-by: Dave Gerlach Signed-off-by: Keerthy [dfustini: split from driver patch and convert to json-schema] Signed-off-by: Drew Fustini --- Changes from v1: - change 'ti,scale-data-fw' to 'firmware-name' - add 'firmware-name' property to the examples .../devicetree/bindings/soc/ti/wkup-m3-ipc.yaml | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/devicetree/bindings/soc/ti/wkup-m3-ipc.yaml b/Documentation/devicetree/bindings/soc/ti/wkup-m3-ipc.yaml index 88d690de050c..fc8fa6ba8c43 100644 --- a/Documentation/devicetree/bindings/soc/ti/wkup-m3-ipc.yaml +++ b/Documentation/devicetree/bindings/soc/ti/wkup-m3-ipc.yaml @@ -40,6 +40,12 @@ description: |+ override the pin's existing bias (pull-up/pull-down) and value (high/low) when IO isolation is active. + Support for I2C PMIC Voltage Scaling + ==================================== + It is possible to pass the name of a binary file to load into the CM3 memory. + The binary data is the I2C sequences for the CM3 to send out to the PMIC + during low power mode entry. + properties: compatible: enum: @@ -67,6 +73,10 @@ properties: mbox_wkupm3 child node. maxItems: 1 + firmware-name: + description: + Name of binary file with I2C sequences for PMIC voltage scaling + ti,vtt-gpio-pin: $ref: /schemas/types.yaml#/definitions/uint32 description: GPIO pin connected to enable pin on VTT regulator @@ -117,6 +127,7 @@ examples: ti,rproc = <&wkup_m3>; mboxes = <&am335x_mailbox &mbox_wkupm3>; ti,vtt-gpio-pin = <7>; + firmware-name = "am335x-evm-scale-data.bin"; }; }; @@ -157,6 +168,7 @@ examples: ti,rproc = <&wkup_m3>; mboxes = <&am437x_mailbox &mbox_wkupm3>; ti,set-io-isolation; + firmware-name = "am43x-evm-scale-data.bin"; }; }; -- 2.32.0