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 X-Spam-Level: X-Spam-Status: No, score=-16.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 937DDC4320A for ; Tue, 24 Aug 2021 18:34:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7653061212 for ; Tue, 24 Aug 2021 18:34:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233378AbhHXSfd (ORCPT ); Tue, 24 Aug 2021 14:35:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50648 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229521AbhHXSfa (ORCPT ); Tue, 24 Aug 2021 14:35:30 -0400 Received: from mail-ot1-x32b.google.com (mail-ot1-x32b.google.com [IPv6:2607:f8b0:4864:20::32b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5A2C6C0613C1 for ; Tue, 24 Aug 2021 11:34:46 -0700 (PDT) Received: by mail-ot1-x32b.google.com with SMTP id o16-20020a9d2210000000b0051b1e56c98fso33770879ota.8 for ; Tue, 24 Aug 2021 11:34:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=mime-version:in-reply-to:references:from:user-agent:date:message-id :subject:to:cc; bh=MpSjVxSMjJK4OJw4oTKLD3JL0PWvQPTVS0fPqXZYl3g=; b=n/JcnajTDuWMOgB1dqCLhqVz/SK9+IAgpIc6Z5Dlx0X3Bz7NVcegvqK2cpm3DNJbPQ 10DZqlRko41kmEobXSLmA4zrYTieEAA4vI1y7bwkO66KsdU7sMqstshTU6BpT0hdAZfy i6kXOJtX6evRy9U7I6Sp6+LA4yS0fHqGvNoOA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from :user-agent:date:message-id:subject:to:cc; bh=MpSjVxSMjJK4OJw4oTKLD3JL0PWvQPTVS0fPqXZYl3g=; b=PEoL39Ggkzs+1ZXfCcaxeg+N3194be7yomA/DiWBAbDEoKTlYD5Q97qQyJeo5+wblO DCOIgpyVVyCYfZvjlSCrFGCjYtU50zCVGSsTUw85U8uSMV6XUSsYqv9+z+0jh1gELgng wRxER/rcz+j1j1TmzSBNQ34IxG3Ow5dY7m4YNqpvj3o6W7Q5ZtwsnowprYNeE4X6efZZ Ha7MO50FXtVTdyacATLUlA8A0NLD7CXiYukok0ppQSqxATP9wweOxAp/4hucXNcWQdfE HGZWzmxPpR9LoPK6cfA1sjXx4hr+IIgHYndiwaGuSC/bPCgdk46bAK6Ywh4NGhls+uhc hJNQ== X-Gm-Message-State: AOAM5303WLGy3VJi4yg6vx7BV6kwZUGBByQRyFLL/FZab3WwmxwicaSK 1xK8w0WX8kt9OgvzRO9qWXlzhEjI5yif/PbrsNbYFQ== X-Google-Smtp-Source: ABdhPJzRH/Uc7RJJIpCbxFsIdbJBiPfb7rT9/hLjX1Vp9cEqoF/t87EH1mDk73cPqGvQmJ4MtwBCUJQX8YPNs8ZHDkQ= X-Received: by 2002:a05:6808:180e:: with SMTP id bh14mr3854642oib.19.1629830085691; Tue, 24 Aug 2021 11:34:45 -0700 (PDT) Received: from 753933720722 named unknown by gmailapi.google.com with HTTPREST; Tue, 24 Aug 2021 11:34:45 -0700 MIME-Version: 1.0 In-Reply-To: <1629113954-14084-2-git-send-email-deesin@codeaurora.org> References: <1629113954-14084-1-git-send-email-deesin@codeaurora.org> <1629113954-14084-2-git-send-email-deesin@codeaurora.org> From: Stephen Boyd User-Agent: alot/0.9.1 Date: Tue, 24 Aug 2021 11:34:45 -0700 Message-ID: Subject: Re: [PATCH V6 1/2] soc: qcom: aoss: Expose send for generic usecase To: Deepak Kumar Singh , bjorn.andersson@linaro.org, clew@codeaurora.org, sibis@codeaurora.org Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, Andy Gross Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Quoting Deepak Kumar Singh (2021-08-16 04:39:13) > Not all upcoming usecases will have an interface to allow the aoss > driver to hook onto. Expose the send api and create a get function to > enable drivers to send their own messages to aoss. > > Signed-off-by: Chris Lew > Signed-off-by: Deepak Kumar Singh > --- With one nit below Reviewed-by: Stephen Boyd > diff --git a/drivers/soc/qcom/qcom_aoss.c b/drivers/soc/qcom/qcom_aoss.c > index 934fcc4..a43c22c 100644 > --- a/drivers/soc/qcom/qcom_aoss.c > +++ b/drivers/soc/qcom/qcom_aoss.c > @@ -515,6 +521,48 @@ static void qmp_cooling_devices_remove(struct qmp *qmp) > thermal_cooling_device_unregister(qmp->cooling_devs[i].cdev); > } > > +/** > + * qmp_get() - get a qmp handle from a device > + * @dev: client device pointer > + * > + * Return: handle to qmp device on success, ERR_PTR() on failure > + */ > +struct qmp *qmp_get(struct device *dev) > +{ > + struct platform_device *pdev; > + struct device_node *np; > + struct qmp *qmp; > + > + if (!dev || !dev->of_node) > + return ERR_PTR(-EINVAL); > + > + np = of_parse_phandle(dev->of_node, "qcom,qmp", 0); > + if (!np) > + return ERR_PTR(-ENODEV); > + > + pdev = of_find_device_by_node(np); > + of_node_put(np); > + if (!pdev) > + return ERR_PTR(-EINVAL); > + > + qmp = platform_get_drvdata(pdev); > + > + return qmp ? qmp : ERR_PTR(-EPROBE_DEFER); > +} > +EXPORT_SYMBOL(qmp_get); > + > +/** > + * qmp_put() - Match get_device() inside of_find_device_by_node() > + * in qmp_get() I meant to put this comment next to the put_device() call. This should say something like "release a qmp handle" and then the existing comment moved down to the if below. > + * @qmp: qmp handle obtained from qmp_get() > + */ > +void qmp_put(struct qmp *qmp) > +{ > + if (!IS_ERR_OR_NULL(qmp)) > + put_device(qmp->dev); > +} > +EXPORT_SYMBOL(qmp_put); > + > static int qmp_probe(struct platform_device *pdev) > { > struct resource *res;