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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 AFB5FC432BE for ; Tue, 3 Aug 2021 10:27:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8981260ED6 for ; Tue, 3 Aug 2021 10:27:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235171AbhHCK1P (ORCPT ); Tue, 3 Aug 2021 06:27:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54584 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234863AbhHCK1O (ORCPT ); Tue, 3 Aug 2021 06:27:14 -0400 Received: from mail-oi1-x236.google.com (mail-oi1-x236.google.com [IPv6:2607:f8b0:4864:20::236]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 63A8CC061764; Tue, 3 Aug 2021 03:27:03 -0700 (PDT) Received: by mail-oi1-x236.google.com with SMTP id t128so27666284oig.1; Tue, 03 Aug 2021 03:27:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=SqM/oJoSvzSobxq+NRIrAXdGV2FVgUmDDxPLkyPPcTQ=; b=GO+GBvXQjZzUcn2PSHWiy5aNWfSj5Nflq8cZPBm1/eE2/rGkZoAsGtVLfSuNeNXjZJ uDOvdJpreBU+ep8b59D4dzlzOPK7J/bFtKnnPAtIxQe/ScQFO+Y3gxNHQu/boyq+m+zy F0riRgYC72zY0QIvLLvJdKmgz7aAXLZzyD8Um+DXUSwcObVsiqhHQu+AOx/i6mXo6pQ/ R1Ojm6zF4OaaW/QCwGn+deanoAfRHZd5cE0u2TsiaaH7eYauxH/R8XAKqK2nEGL8D9fe jJs1TMN3HJyxXiOTZizOFzXOxC873CEprgwEXqLX3sP2/WDPORm4ShAX3WX/nNBptr48 MKxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=SqM/oJoSvzSobxq+NRIrAXdGV2FVgUmDDxPLkyPPcTQ=; b=i5NmLVCXxZv19yXwGV4PXQnyX9gkyVwYEEuIgmVYRbbhpfILHjooXP0H6MfCr8Vt+X ndRULZFjuG/L4a8wrwynWnM4FFJmL7/xSc+NlZJr5Ker5dKYmwaw2OMQln0R+y6jK0as if2wuhW6al7ZVGhFDxZMAjq5k0yPTBDQlClTUE/uM8OfRmisvujchVa6SVxkinqe4ed+ xy3ppPigipcUxshrhhbQ/PxcKW4sSv3AgBEnT2aNMVLBo+1fIf4OaixijGYGqUF5DrY+ 6BaMzRvde7rMWY7DJuZLfrDHJvvnpNBb7QHweM4H78E+xs/PLq7HRbE1xGmDdvKZR8ac TOEg== X-Gm-Message-State: AOAM530wkUavAQzgyIj0LUMX3ETuDXS1nCF7uBQwbKVWt6VAs6pf9kv9 kGSQYWRMTI7ng7C6y8k4AoqM/7ZbiInP8IIJB38= X-Google-Smtp-Source: ABdhPJyuVxKpBkp+AM1eSSbFrWppWiASs+gUV+Cz2msdcywU5eJmvTXn6woluOElwpzG8OB7EryTrYZxlB1RDVgeILE= X-Received: by 2002:a05:6808:20aa:: with SMTP id s42mr2431911oiw.129.1627986422784; Tue, 03 Aug 2021 03:27:02 -0700 (PDT) MIME-Version: 1.0 References: <20210802121215.703023-1-eizan@chromium.org> <20210802220943.v6.3.I909f5375d930f5d0cc877128e30e2a67078b674c@changeid> In-Reply-To: <20210802220943.v6.3.I909f5375d930f5d0cc877128e30e2a67078b674c@changeid> From: Enric Balletbo Serra Date: Tue, 3 Aug 2021 12:26:50 +0200 Message-ID: Subject: Re: [PATCH v6 3/9] mtk-mdp: use pm_runtime in MDP component driver To: Eizan Miyamoto Cc: linux-kernel , Chen-Yu Tsai , Houlong Wei , Yong Wu , Enric Balletbo i Serra , devicetree , Chun-Kuang Hu , Andrew-CT Chen , Matthias Brugger , Mauro Carvalho Chehab , Minghsiu Tsai , Linux ARM , Linux Media Mailing List , "moderated list:ARM/Mediatek SoC support" Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Eizan, Thank you for your patch. Missatge de Eizan Miyamoto del dia dl., 2 d=E2=80=99ag= . 2021 a les 14:14: > > Without this change, the MDP components are not fully integrated into > the runtime power management subsystem, and the MDP driver does not > work. > > For each of the component device drivers to be able to call > pm_runtime_get/put_sync() a pointer to the component's device struct > had to be added to struct mtk_mdp_comp, set by mtk_mdp_comp_init(). > > Note that the dev argument to mtk_mdp_comp_clock_on/off() has been > removed. Those functions used to be called from the "master" mdp driver > in mtk_mdp_core.c, but the component's device pointer no longer > corresponds to the mdp master device pointer, which is not the right > device to pass to pm_runtime_put/get_sync() which we had to add to get > the driver to work properly. > > Signed-off-by: Eizan Miyamoto Reviewed-by: Enric Balletbo i Serra > --- > > (no changes since v1) > > drivers/media/platform/mtk-mdp/mtk_mdp_comp.c | 24 +++++++++++++++---- > drivers/media/platform/mtk-mdp/mtk_mdp_comp.h | 6 +++-- > drivers/media/platform/mtk-mdp/mtk_mdp_core.c | 7 +++--- > 3 files changed, 27 insertions(+), 10 deletions(-) > > diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c b/drivers/medi= a/platform/mtk-mdp/mtk_mdp_comp.c > index 7a0e3acffab9..472c261b01e8 100644 > --- a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c > +++ b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c > @@ -12,6 +12,7 @@ > #include > #include > #include > +#include > > #include "mtk_mdp_comp.h" > #include "mtk_mdp_core.h" > @@ -50,14 +51,22 @@ static const struct of_device_id mtk_mdp_comp_driver_= dt_match[] =3D { > }; > MODULE_DEVICE_TABLE(of, mtk_mdp_comp_driver_dt_match); > > -int mtk_mdp_comp_clock_on(struct device *dev, struct mtk_mdp_comp *comp) > +int mtk_mdp_comp_clock_on(struct mtk_mdp_comp *comp) > { > int i, err, status; > > if (comp->larb_dev) { > err =3D mtk_smi_larb_get(comp->larb_dev); > if (err) > - dev_err(dev, "failed to get larb, err %d.\n", err= ); > + dev_err(comp->dev, "failed to get larb, err %d.\n= ", err); > + } > + > + err =3D pm_runtime_get_sync(comp->dev); > + if (err < 0) { > + dev_err(comp->dev, > + "failed to runtime get, err %d.\n", > + err); > + return err; > } > > for (i =3D 0; i < ARRAY_SIZE(comp->clk); i++) { > @@ -66,7 +75,7 @@ int mtk_mdp_comp_clock_on(struct device *dev, struct mt= k_mdp_comp *comp) > err =3D clk_prepare_enable(comp->clk[i]); > if (err) { > status =3D err; > - dev_err(dev, "failed to enable clock, err %d. i:%= d\n", err, i); > + dev_err(comp->dev, "failed to enable clock, err %= d. i:%d\n", err, i); > goto err_clk_prepare_enable; > } > } > @@ -80,10 +89,12 @@ int mtk_mdp_comp_clock_on(struct device *dev, struct = mtk_mdp_comp *comp) > clk_disable_unprepare(comp->clk[i]); > } > > + pm_runtime_put_sync(comp->dev); > + > return status; > } > > -void mtk_mdp_comp_clock_off(struct device *dev, struct mtk_mdp_comp *com= p) > +int mtk_mdp_comp_clock_off(struct mtk_mdp_comp *comp) > { > int i; > > @@ -95,6 +106,8 @@ void mtk_mdp_comp_clock_off(struct device *dev, struct= mtk_mdp_comp *comp) > > if (comp->larb_dev) > mtk_smi_larb_put(comp->larb_dev); > + > + return pm_runtime_put_sync(comp->dev); > } > > static int mtk_mdp_comp_bind(struct device *dev, struct device *master, = void *data) > @@ -103,6 +116,7 @@ static int mtk_mdp_comp_bind(struct device *dev, stru= ct device *master, void *da > struct mtk_mdp_dev *mdp =3D data; > > mtk_mdp_register_component(mdp, comp); > + pm_runtime_enable(dev); > > return 0; > } > @@ -113,6 +127,7 @@ static void mtk_mdp_comp_unbind(struct device *dev, s= truct device *master, > struct mtk_mdp_comp *comp =3D dev_get_drvdata(dev); > struct mtk_mdp_dev *mdp =3D data; > > + pm_runtime_disable(dev); > mtk_mdp_unregister_component(mdp, comp); > } > > @@ -132,6 +147,7 @@ int mtk_mdp_comp_init(struct mtk_mdp_comp *comp, stru= ct device *dev) > (enum mtk_mdp_comp_type)of_device_get_match_data(dev); > > INIT_LIST_HEAD(&comp->node); > + comp->dev =3D dev; > > for (i =3D 0; i < ARRAY_SIZE(comp->clk); i++) { > comp->clk[i] =3D of_clk_get(node, i); > diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h b/drivers/medi= a/platform/mtk-mdp/mtk_mdp_comp.h > index df5fc4c94f90..f2e22e7e7c45 100644 > --- a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h > +++ b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h > @@ -12,17 +12,19 @@ > * @node: list node to track sibing MDP components > * @clk: clocks required for component > * @larb_dev: SMI device required for component > + * @dev: component's device > */ > struct mtk_mdp_comp { > struct list_head node; > struct clk *clk[2]; > + struct device *dev; > struct device *larb_dev; > }; > > int mtk_mdp_comp_init(struct mtk_mdp_comp *comp, struct device *dev); > > -int mtk_mdp_comp_clock_on(struct device *dev, struct mtk_mdp_comp *comp)= ; > -void mtk_mdp_comp_clock_off(struct device *dev, struct mtk_mdp_comp *com= p); > +int mtk_mdp_comp_clock_on(struct mtk_mdp_comp *comp); > +int mtk_mdp_comp_clock_off(struct mtk_mdp_comp *comp); > > extern struct platform_driver mtk_mdp_component_driver; > > diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_core.c b/drivers/medi= a/platform/mtk-mdp/mtk_mdp_core.c > index b813a822439a..714154450981 100644 > --- a/drivers/media/platform/mtk-mdp/mtk_mdp_core.c > +++ b/drivers/media/platform/mtk-mdp/mtk_mdp_core.c > @@ -58,7 +58,7 @@ static int mtk_mdp_clock_on(struct mtk_mdp_dev *mdp) > int err; > > list_for_each_entry(comp_node, &mdp->comp_list, node) { > - err =3D mtk_mdp_comp_clock_on(dev, comp_node); > + err =3D mtk_mdp_comp_clock_on(comp_node); > if (err) { > status =3D err; > goto err_mtk_mdp_comp_clock_on; > @@ -69,18 +69,17 @@ static int mtk_mdp_clock_on(struct mtk_mdp_dev *mdp) > > err_mtk_mdp_comp_clock_on: > list_for_each_entry_continue_reverse(comp_node, &mdp->comp_list, = node) > - mtk_mdp_comp_clock_off(dev, comp_node); > + mtk_mdp_comp_clock_off(comp_node); > > return status; > } > > static void mtk_mdp_clock_off(struct mtk_mdp_dev *mdp) > { > - struct device *dev =3D &mdp->pdev->dev; > struct mtk_mdp_comp *comp_node; > > list_for_each_entry(comp_node, &mdp->comp_list, node) > - mtk_mdp_comp_clock_off(dev, comp_node); > + mtk_mdp_comp_clock_off(comp_node); > } > > static void mtk_mdp_wdt_worker(struct work_struct *work) > -- > 2.32.0.554.ge1b32706d8-goog > > > _______________________________________________ > Linux-mediatek mailing list > Linux-mediatek@lists.infradead.org > 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ABdhPJyuVxKpBkp+AM1eSSbFrWppWiASs+gUV+Cz2msdcywU5eJmvTXn6woluOElwpzG8OB7EryTrYZxlB1RDVgeILE= X-Received: by 2002:a05:6808:20aa:: with SMTP id s42mr2431911oiw.129.1627986422784; Tue, 03 Aug 2021 03:27:02 -0700 (PDT) MIME-Version: 1.0 References: <20210802121215.703023-1-eizan@chromium.org> <20210802220943.v6.3.I909f5375d930f5d0cc877128e30e2a67078b674c@changeid> In-Reply-To: <20210802220943.v6.3.I909f5375d930f5d0cc877128e30e2a67078b674c@changeid> From: Enric Balletbo Serra Date: Tue, 3 Aug 2021 12:26:50 +0200 Message-ID: Subject: Re: [PATCH v6 3/9] mtk-mdp: use pm_runtime in MDP component driver To: Eizan Miyamoto Cc: linux-kernel , Chen-Yu Tsai , Houlong Wei , Yong Wu , Enric Balletbo i Serra , devicetree , Chun-Kuang Hu , Andrew-CT Chen , Matthias Brugger , Mauro Carvalho Chehab , Minghsiu Tsai , Linux ARM , Linux Media Mailing List , "moderated list:ARM/Mediatek SoC support" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: 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<20210802220943.v6.3.I909f5375d930f5d0cc877128e30e2a67078b674c@changeid> In-Reply-To: <20210802220943.v6.3.I909f5375d930f5d0cc877128e30e2a67078b674c@changeid> From: Enric Balletbo Serra Date: Tue, 3 Aug 2021 12:26:50 +0200 Message-ID: Subject: Re: [PATCH v6 3/9] mtk-mdp: use pm_runtime in MDP component driver To: Eizan Miyamoto Cc: linux-kernel , Chen-Yu Tsai , Houlong Wei , Yong Wu , Enric Balletbo i Serra , devicetree , Chun-Kuang Hu , Andrew-CT Chen , Matthias Brugger , Mauro Carvalho Chehab , Minghsiu Tsai , Linux ARM , Linux Media Mailing List , "moderated list:ARM/Mediatek SoC support" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210803_032704_353110_5A1ABDAF X-CRM114-Status: GOOD ( 33.90 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" 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