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 D94E5C433FE for ; Tue, 26 Apr 2022 19:27:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354117AbiDZTac (ORCPT ); Tue, 26 Apr 2022 15:30:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53998 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352273AbiDZTa3 (ORCPT ); Tue, 26 Apr 2022 15:30:29 -0400 Received: from mail-pf1-x431.google.com (mail-pf1-x431.google.com [IPv6:2607:f8b0:4864:20::431]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9CF676E4F7 for ; Tue, 26 Apr 2022 12:27:19 -0700 (PDT) Received: by mail-pf1-x431.google.com with SMTP id a15so18849486pfv.11 for ; Tue, 26 Apr 2022 12:27:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20210112.gappssmtp.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=YrNAxfDrxxD766OcfeCfCclqIZpQa0twyturIx4zcDA=; b=lFpfuszm5sYEet8AFcmzLa4ajQqoQ28Y0ReAuZHGIDsHkytcZgVXGcB2HZzslryqop KuAHYH0lOOzehRzsz/JNBPOdO0QuUNhTGm2JIAXfwTsO7RK1dG6NtZdU2wcGETwnHgT7 ERJZiZc94CGVpzdmoJXxJ6y/5gtpV9ksDeveb6drlh6e0+jqXTBo8hcp5Nw9TzKxleFI LDHft1G55yQmOC7+qC0MNvo/CLNnvOeWQrUfQq6tkotBoY0TfSqWyXdMY+2OlEECxnse vJ9KiPmxDEJDHRaqrzgw+O23TQleBL8JpBtCPJVrPaFM6wZ05Z6a2yKizbldHKlBgCmp NcdA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=YrNAxfDrxxD766OcfeCfCclqIZpQa0twyturIx4zcDA=; b=5F7Rr4NLt3qkjQKTdhO7PRPx2LcpdoY7Gp3hh64iffSFV1uzyVFJ//QDW4MF2DGEHN dlytxSTXwcyFPaWy+o0VrXGJykEiQ9T0wDpNtXvpLJTatBSJASnfuHJq07l8sq5mnzJ3 A6hrRDosBStw1IMPGXQztqpEgK8xHMyXd0dB9M27hYWmnpgMl/ex3a9vLugZdPsoqLcn hMjt7qLEu23OY+p9SeSEmtoKzLQDKoXvkxdradXCp6kK939WiQ80npiqiEhT/YqF2vJd qiLRw+tskGRjoDIt7MiqjEEEAG/mgYa1EAorfaWqyLqnRSnMFVV8vHSaZ9YroR+lw7wj wKmw== X-Gm-Message-State: AOAM533B1V84BMPvacqUUoQr5eLTvEAS6gGQZULO//WbRr1vEemojTKR OqSvW+sDcNgmt3YVznAPoXr0/A== X-Google-Smtp-Source: ABdhPJwsYXdbHr7lCZriH0/82+iIj0K6xR6VWQSP6+pPkBdDyb7ogFEs1NlZGQpGAY7kGVDfBzcLyQ== X-Received: by 2002:a63:df0f:0:b0:3aa:436f:8784 with SMTP id u15-20020a63df0f000000b003aa436f8784mr20938313pgg.514.1651001239114; Tue, 26 Apr 2022 12:27:19 -0700 (PDT) Received: from x1 ([2601:1c2:1001:7090:9bcd:e060:b370:70d8]) by smtp.gmail.com with ESMTPSA id o2-20020a62f902000000b0050cfb6994e2sm13327322pfh.130.2022.04.26.12.27.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 Apr 2022 12:27:18 -0700 (PDT) Date: Tue, 26 Apr 2022 12:28:18 -0700 From: Drew Fustini To: Rob Herring Cc: Krzysztof Kozlowski , Nishanth Menon , Santosh Shilimkar , Dave Gerlach , Tony Lindgren , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Keerthy Subject: Re: [PATCH 1/2] dt-bindings: wkup-m3-ipc: Add ti,scale-data-fw property Message-ID: References: <20220425052806.484590-1-dfustini@baylibre.com> <20220425052806.484590-2-dfustini@baylibre.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Apr 25, 2022 at 11:22:20AM -0500, Rob Herring wrote: > On Sun, Apr 24, 2022 at 10:28:05PM -0700, Drew Fustini wrote: > > 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 > > --- > > .../devicetree/bindings/soc/ti/wkup-m3-ipc.yaml | 11 +++++++++++ > > 1 file changed, 11 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..d2c248d82384 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 +73,11 @@ properties: > > mbox_wkupm3 child node. > > maxItems: 1 > > > > + ti,scale-data-fw: > > + $ref: /schemas/types.yaml#/definitions/string > > + description: > > + Name of the firmware binary in /lib/firmware to copy to CM3 aux data > > The location of firmware files is up to the OS. > > Is there other firmware? If not, 'firmware-name' is the somewhat > standard property for this. > > What's the default name? Thank you for the suggestion. I will change it to firmware-name as this is the only type of firmware that this driver will need to load. There is no default name for the firmware. The name depends on the board being used. The current [1] possibilites are: am43x-evm-scale-data.bin am335x-bone-scale-data.bin am335x-evm-scale-data.bin Thank you, Drew [1] https://git.ti.com/cgit/processor-firmware/ti-amx3-cm3-pm-firmware/tree/bin?h=08.02.00.006