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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8B752C433FE for ; Wed, 29 Sep 2021 12:13:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6DA4F6138E for ; Wed, 29 Sep 2021 12:13:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343692AbhI2MOu (ORCPT ); Wed, 29 Sep 2021 08:14:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39882 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343569AbhI2MOq (ORCPT ); Wed, 29 Sep 2021 08:14:46 -0400 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5AC70C06161C; Wed, 29 Sep 2021 05:13:05 -0700 (PDT) Received: from [IPv6:2a02:810a:880:f54:fd5c:7cb1:aaa8:78b1] (unknown [IPv6:2a02:810a:880:f54:fd5c:7cb1:aaa8:78b1]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: dafna) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 67C511F4428D; Wed, 29 Sep 2021 13:13:02 +0100 (BST) Subject: Re: [PATCH v8 09/12] media: mtk-vcodec: Get rid of mtk_smi_larb_get/put To: Yong Wu , Matthias Brugger , Joerg Roedel , Rob Herring , Krzysztof Kozlowski , David Airlie , Mauro Carvalho Chehab Cc: Evan Green , Robin Murphy , Tomasz Figa , Will Deacon , linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, youlin.pei@mediatek.com, Matthias Kaehlcke , anan.sun@mediatek.com, yi.kuo@mediatek.com, acourbot@chromium.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, Daniel Vetter , Chun-Kuang Hu , Philipp Zabel , Tiffany Lin , Hsin-Yi Wang , Eizan Miyamoto , anthony.huang@mediatek.com, Frank Wunderlich , Irui Wang References: <20210929013719.25120-1-yong.wu@mediatek.com> <20210929013719.25120-10-yong.wu@mediatek.com> From: Dafna Hirschfeld Message-ID: <02f444d5-9633-3f9c-2d1f-97ce073d1180@collabora.com> Date: Wed, 29 Sep 2021 14:13:00 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <20210929013719.25120-10-yong.wu@mediatek.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 29.09.21 03:37, Yong Wu wrote: > MediaTek IOMMU has already added the device_link between the consumer > and smi-larb device. If the vcodec device call the pm_runtime_get_sync, > the smi-larb's pm_runtime_get_sync also be called automatically. > > CC: Tiffany Lin > CC: Irui Wang > Signed-off-by: Yong Wu > Reviewed-by: Evan Green > Acked-by: Tiffany Lin > Reviewed-by: Dafna Hirschfeld > --- > .../platform/mtk-vcodec/mtk_vcodec_dec_pm.c | 37 +++------------- > .../platform/mtk-vcodec/mtk_vcodec_drv.h | 3 -- > .../platform/mtk-vcodec/mtk_vcodec_enc.c | 1 - > .../platform/mtk-vcodec/mtk_vcodec_enc_pm.c | 44 +++---------------- > 4 files changed, 10 insertions(+), 75 deletions(-) > > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c > index 6038db96f71c..d0bf9aa3b29d 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c > @@ -8,14 +8,12 @@ > #include > #include > #include > -#include > > #include "mtk_vcodec_dec_pm.h" > #include "mtk_vcodec_util.h" > > int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > { > - struct device_node *node; > struct platform_device *pdev; > struct mtk_vcodec_pm *pm; > struct mtk_vcodec_clk *dec_clk; > @@ -26,18 +24,7 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > pm = &mtkdev->pm; > pm->mtkdev = mtkdev; > dec_clk = &pm->vdec_clk; > - node = of_parse_phandle(pdev->dev.of_node, "mediatek,larb", 0); > - if (!node) { > - mtk_v4l2_err("of_parse_phandle mediatek,larb fail!"); > - return -1; > - } > > - pdev = of_find_device_by_node(node); > - of_node_put(node); > - if (WARN_ON(!pdev)) { > - return -1; > - } > - pm->larbvdec = &pdev->dev; > pdev = mtkdev->plat_dev; > pm->dev = &pdev->dev; > > @@ -47,14 +34,11 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > dec_clk->clk_info = devm_kcalloc(&pdev->dev, > dec_clk->clk_num, sizeof(*clk_info), > GFP_KERNEL); > - if (!dec_clk->clk_info) { > - ret = -ENOMEM; > - goto put_device; > - } > + if (!dec_clk->clk_info) > + return -ENOMEM; > } else { > mtk_v4l2_err("Failed to get vdec clock count"); > - ret = -EINVAL; > - goto put_device; > + return -EINVAL; > } > > for (i = 0; i < dec_clk->clk_num; i++) { > @@ -63,29 +47,24 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > "clock-names", i, &clk_info->clk_name); > if (ret) { > mtk_v4l2_err("Failed to get clock name id = %d", i); > - goto put_device; > + return ret; > } > clk_info->vcodec_clk = devm_clk_get(&pdev->dev, > clk_info->clk_name); > if (IS_ERR(clk_info->vcodec_clk)) { > mtk_v4l2_err("devm_clk_get (%d)%s fail", i, > clk_info->clk_name); > - ret = PTR_ERR(clk_info->vcodec_clk); > - goto put_device; > + return PTR_ERR(clk_info->vcodec_clk); > } > } > > pm_runtime_enable(&pdev->dev); > return 0; > -put_device: > - put_device(pm->larbvdec); > - return ret; > } > > void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev) > { > pm_runtime_disable(dev->pm.dev); > - put_device(dev->pm.larbvdec); > } Now that functions only do 'pm_runtime_disable(dev->pm.dev);' so it will be more readable to remove the function mtk_vcodec_release_dec_pm and replace with pm_runtime_disable(dev->pm.dev); Same for the 'enc' equivalent. Thanks, Dafna > > int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm) > @@ -122,11 +101,6 @@ void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm) > } > } > > - ret = mtk_smi_larb_get(pm->larbvdec); > - if (ret) { > - mtk_v4l2_err("mtk_smi_larb_get larbvdec fail %d", ret); > - goto error; > - }> return; > > error: > @@ -139,7 +113,6 @@ void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm) > struct mtk_vcodec_clk *dec_clk = &pm->vdec_clk; > int i = 0; > > - mtk_smi_larb_put(pm->larbvdec); > for (i = dec_clk->clk_num - 1; i >= 0; i--) > clk_disable_unprepare(dec_clk->clk_info[i].vcodec_clk); > } > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > index c6c7672fecfb..64b73dd880ce 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > @@ -189,10 +189,7 @@ struct mtk_vcodec_clk { > */ > struct mtk_vcodec_pm { > struct mtk_vcodec_clk vdec_clk; > - struct device *larbvdec; > - > struct mtk_vcodec_clk venc_clk; > - struct device *larbvenc; > struct device *dev; > struct mtk_vcodec_dev *mtkdev; > }; > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c > index 416f356af363..9a1515cf862d 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c > @@ -8,7 +8,6 @@ > #include > #include > #include > -#include > #include > > #include "mtk_vcodec_drv.h" > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c > index 1b2e4930ed27..dffb190267ed 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c > @@ -8,58 +8,36 @@ > #include > #include > #include > -#include > > #include "mtk_vcodec_enc_pm.h" > #include "mtk_vcodec_util.h" > > int mtk_vcodec_init_enc_pm(struct mtk_vcodec_dev *mtkdev) > { > - struct device_node *node; > struct platform_device *pdev; > struct mtk_vcodec_pm *pm; > struct mtk_vcodec_clk *enc_clk; > struct mtk_vcodec_clk_info *clk_info; > int ret = 0, i = 0; > - struct device *dev; > > pdev = mtkdev->plat_dev; > pm = &mtkdev->pm; > memset(pm, 0, sizeof(struct mtk_vcodec_pm)); > pm->mtkdev = mtkdev; > pm->dev = &pdev->dev; > - dev = &pdev->dev; > enc_clk = &pm->venc_clk; > > - node = of_parse_phandle(dev->of_node, "mediatek,larb", 0); > - if (!node) { > - mtk_v4l2_err("no mediatek,larb found"); > - return -ENODEV; > - } > - pdev = of_find_device_by_node(node); > - of_node_put(node); > - if (!pdev) { > - mtk_v4l2_err("no mediatek,larb device found"); > - return -ENODEV; > - } > - pm->larbvenc = &pdev->dev; > - pdev = mtkdev->plat_dev; > - pm->dev = &pdev->dev; > - > enc_clk->clk_num = of_property_count_strings(pdev->dev.of_node, > "clock-names"); > if (enc_clk->clk_num > 0) { > enc_clk->clk_info = devm_kcalloc(&pdev->dev, > enc_clk->clk_num, sizeof(*clk_info), > GFP_KERNEL); > - if (!enc_clk->clk_info) { > - ret = -ENOMEM; > - goto put_larbvenc; > - } > + if (!enc_clk->clk_info) > + return -ENOMEM; > } else { > mtk_v4l2_err("Failed to get venc clock count"); > - ret = -EINVAL; > - goto put_larbvenc; > + return -EINVAL; > } > > for (i = 0; i < enc_clk->clk_num; i++) { > @@ -68,29 +46,23 @@ int mtk_vcodec_init_enc_pm(struct mtk_vcodec_dev *mtkdev) > "clock-names", i, &clk_info->clk_name); > if (ret) { > mtk_v4l2_err("venc failed to get clk name %d", i); > - goto put_larbvenc; > + return ret; > } > clk_info->vcodec_clk = devm_clk_get(&pdev->dev, > clk_info->clk_name); > if (IS_ERR(clk_info->vcodec_clk)) { > mtk_v4l2_err("venc devm_clk_get (%d)%s fail", i, > clk_info->clk_name); > - ret = PTR_ERR(clk_info->vcodec_clk); > - goto put_larbvenc; > + return PTR_ERR(clk_info->vcodec_clk); > } > } > > return 0; > - > -put_larbvenc: > - put_device(pm->larbvenc); > - return ret; > } > > void mtk_vcodec_release_enc_pm(struct mtk_vcodec_dev *mtkdev) > { > pm_runtime_disable(mtkdev->pm.dev); > - put_device(mtkdev->pm.larbvenc); > } > > > @@ -108,11 +80,6 @@ void mtk_vcodec_enc_clock_on(struct mtk_vcodec_pm *pm) > } > } > > - ret = mtk_smi_larb_get(pm->larbvenc); > - if (ret) { > - mtk_v4l2_err("mtk_smi_larb_get larb3 fail %d", ret); > - goto clkerr; > - } > return; > > clkerr: > @@ -125,7 +92,6 @@ void mtk_vcodec_enc_clock_off(struct mtk_vcodec_pm *pm) > struct mtk_vcodec_clk *enc_clk = &pm->venc_clk; > int i = 0; > > - mtk_smi_larb_put(pm->larbvenc); > for (i = enc_clk->clk_num - 1; i >= 0; i--) > clk_disable_unprepare(enc_clk->clk_info[i].vcodec_clk); > } > 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4F9B6C433EF for ; Wed, 29 Sep 2021 12:13:10 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0A0D361440 for ; Wed, 29 Sep 2021 12:13:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 0A0D361440 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id B81D940370; Wed, 29 Sep 2021 12:13:09 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7J-cSjtBZOeX; Wed, 29 Sep 2021 12:13:08 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp2.osuosl.org (Postfix) with ESMTPS id E245540012; Wed, 29 Sep 2021 12:13:07 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id B85D0C000F; Wed, 29 Sep 2021 12:13:07 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id A275DC000D for ; Wed, 29 Sep 2021 12:13:06 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 9081D82EC7 for ; Wed, 29 Sep 2021 12:13:06 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1urmfFNnT17K for ; Wed, 29 Sep 2021 12:13:05 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by smtp1.osuosl.org (Postfix) with ESMTPS id 49EDE82E9C for ; Wed, 29 Sep 2021 12:13:05 +0000 (UTC) Received: from [IPv6:2a02:810a:880:f54:fd5c:7cb1:aaa8:78b1] (unknown [IPv6:2a02:810a:880:f54:fd5c:7cb1:aaa8:78b1]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: dafna) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 67C511F4428D; Wed, 29 Sep 2021 13:13:02 +0100 (BST) Subject: Re: [PATCH v8 09/12] media: mtk-vcodec: Get rid of mtk_smi_larb_get/put To: Yong Wu , Matthias Brugger , Joerg Roedel , Rob Herring , Krzysztof Kozlowski , David Airlie , Mauro Carvalho Chehab References: <20210929013719.25120-1-yong.wu@mediatek.com> <20210929013719.25120-10-yong.wu@mediatek.com> From: Dafna Hirschfeld Message-ID: <02f444d5-9633-3f9c-2d1f-97ce073d1180@collabora.com> Date: Wed, 29 Sep 2021 14:13:00 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <20210929013719.25120-10-yong.wu@mediatek.com> Content-Language: en-US Cc: Chun-Kuang Hu , Will Deacon , dri-devel@lists.freedesktop.org, anthony.huang@mediatek.com, youlin.pei@mediatek.com, Irui Wang , Evan Green , Eizan Miyamoto , Matthias Kaehlcke , linux-media@vger.kernel.org, devicetree@vger.kernel.org, Philipp Zabel , Frank Wunderlich , yi.kuo@mediatek.com, linux-mediatek@lists.infradead.org, Hsin-Yi Wang , Tiffany Lin , linux-arm-kernel@lists.infradead.org, anan.sun@mediatek.com, srv_heupstream@mediatek.com, acourbot@chromium.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Daniel Vetter , Robin Murphy X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On 29.09.21 03:37, Yong Wu wrote: > MediaTek IOMMU has already added the device_link between the consumer > and smi-larb device. If the vcodec device call the pm_runtime_get_sync, > the smi-larb's pm_runtime_get_sync also be called automatically. > > CC: Tiffany Lin > CC: Irui Wang > Signed-off-by: Yong Wu > Reviewed-by: Evan Green > Acked-by: Tiffany Lin > Reviewed-by: Dafna Hirschfeld > --- > .../platform/mtk-vcodec/mtk_vcodec_dec_pm.c | 37 +++------------- > .../platform/mtk-vcodec/mtk_vcodec_drv.h | 3 -- > .../platform/mtk-vcodec/mtk_vcodec_enc.c | 1 - > .../platform/mtk-vcodec/mtk_vcodec_enc_pm.c | 44 +++---------------- > 4 files changed, 10 insertions(+), 75 deletions(-) > > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c > index 6038db96f71c..d0bf9aa3b29d 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c > @@ -8,14 +8,12 @@ > #include > #include > #include > -#include > > #include "mtk_vcodec_dec_pm.h" > #include "mtk_vcodec_util.h" > > int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > { > - struct device_node *node; > struct platform_device *pdev; > struct mtk_vcodec_pm *pm; > struct mtk_vcodec_clk *dec_clk; > @@ -26,18 +24,7 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > pm = &mtkdev->pm; > pm->mtkdev = mtkdev; > dec_clk = &pm->vdec_clk; > - node = of_parse_phandle(pdev->dev.of_node, "mediatek,larb", 0); > - if (!node) { > - mtk_v4l2_err("of_parse_phandle mediatek,larb fail!"); > - return -1; > - } > > - pdev = of_find_device_by_node(node); > - of_node_put(node); > - if (WARN_ON(!pdev)) { > - return -1; > - } > - pm->larbvdec = &pdev->dev; > pdev = mtkdev->plat_dev; > pm->dev = &pdev->dev; > > @@ -47,14 +34,11 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > dec_clk->clk_info = devm_kcalloc(&pdev->dev, > dec_clk->clk_num, sizeof(*clk_info), > GFP_KERNEL); > - if (!dec_clk->clk_info) { > - ret = -ENOMEM; > - goto put_device; > - } > + if (!dec_clk->clk_info) > + return -ENOMEM; > } else { > mtk_v4l2_err("Failed to get vdec clock count"); > - ret = -EINVAL; > - goto put_device; > + return -EINVAL; > } > > for (i = 0; i < dec_clk->clk_num; i++) { > @@ -63,29 +47,24 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > "clock-names", i, &clk_info->clk_name); > if (ret) { > mtk_v4l2_err("Failed to get clock name id = %d", i); > - goto put_device; > + return ret; > } > clk_info->vcodec_clk = devm_clk_get(&pdev->dev, > clk_info->clk_name); > if (IS_ERR(clk_info->vcodec_clk)) { > mtk_v4l2_err("devm_clk_get (%d)%s fail", i, > clk_info->clk_name); > - ret = PTR_ERR(clk_info->vcodec_clk); > - goto put_device; > + return PTR_ERR(clk_info->vcodec_clk); > } > } > > pm_runtime_enable(&pdev->dev); > return 0; > -put_device: > - put_device(pm->larbvdec); > - return ret; > } > > void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev) > { > pm_runtime_disable(dev->pm.dev); > - put_device(dev->pm.larbvdec); > } Now that functions only do 'pm_runtime_disable(dev->pm.dev);' so it will be more readable to remove the function mtk_vcodec_release_dec_pm and replace with pm_runtime_disable(dev->pm.dev); Same for the 'enc' equivalent. Thanks, Dafna > > int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm) > @@ -122,11 +101,6 @@ void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm) > } > } > > - ret = mtk_smi_larb_get(pm->larbvdec); > - if (ret) { > - mtk_v4l2_err("mtk_smi_larb_get larbvdec fail %d", ret); > - goto error; > - }> return; > > error: > @@ -139,7 +113,6 @@ void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm) > struct mtk_vcodec_clk *dec_clk = &pm->vdec_clk; > int i = 0; > > - mtk_smi_larb_put(pm->larbvdec); > for (i = dec_clk->clk_num - 1; i >= 0; i--) > clk_disable_unprepare(dec_clk->clk_info[i].vcodec_clk); > } > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > index c6c7672fecfb..64b73dd880ce 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > @@ -189,10 +189,7 @@ struct mtk_vcodec_clk { > */ > struct mtk_vcodec_pm { > struct mtk_vcodec_clk vdec_clk; > - struct device *larbvdec; > - > struct mtk_vcodec_clk venc_clk; > - struct device *larbvenc; > struct device *dev; > struct mtk_vcodec_dev *mtkdev; > }; > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c > index 416f356af363..9a1515cf862d 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c > @@ -8,7 +8,6 @@ > #include > #include > #include > -#include > #include > > #include "mtk_vcodec_drv.h" > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c > index 1b2e4930ed27..dffb190267ed 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c > @@ -8,58 +8,36 @@ > #include > #include > #include > -#include > > #include "mtk_vcodec_enc_pm.h" > #include "mtk_vcodec_util.h" > > int mtk_vcodec_init_enc_pm(struct mtk_vcodec_dev *mtkdev) > { > - struct device_node *node; > struct platform_device *pdev; > struct mtk_vcodec_pm *pm; > struct mtk_vcodec_clk *enc_clk; > struct mtk_vcodec_clk_info *clk_info; > int ret = 0, i = 0; > - struct device *dev; > > pdev = mtkdev->plat_dev; > pm = &mtkdev->pm; > memset(pm, 0, sizeof(struct mtk_vcodec_pm)); > pm->mtkdev = mtkdev; > pm->dev = &pdev->dev; > - dev = &pdev->dev; > enc_clk = &pm->venc_clk; > > - node = of_parse_phandle(dev->of_node, "mediatek,larb", 0); > - if (!node) { > - mtk_v4l2_err("no mediatek,larb found"); > - return -ENODEV; > - } > - pdev = of_find_device_by_node(node); > - of_node_put(node); > - if (!pdev) { > - mtk_v4l2_err("no mediatek,larb device found"); > - return -ENODEV; > - } > - pm->larbvenc = &pdev->dev; > - pdev = mtkdev->plat_dev; > - pm->dev = &pdev->dev; > - > enc_clk->clk_num = of_property_count_strings(pdev->dev.of_node, > "clock-names"); > if (enc_clk->clk_num > 0) { > enc_clk->clk_info = devm_kcalloc(&pdev->dev, > enc_clk->clk_num, sizeof(*clk_info), > GFP_KERNEL); > - if (!enc_clk->clk_info) { > - ret = -ENOMEM; > - goto put_larbvenc; > - } > + if (!enc_clk->clk_info) > + return -ENOMEM; > } else { > mtk_v4l2_err("Failed to get venc clock count"); > - ret = -EINVAL; > - goto put_larbvenc; > + return -EINVAL; > } > > for (i = 0; i < enc_clk->clk_num; i++) { > @@ -68,29 +46,23 @@ int mtk_vcodec_init_enc_pm(struct mtk_vcodec_dev *mtkdev) > "clock-names", i, &clk_info->clk_name); > if (ret) { > mtk_v4l2_err("venc failed to get clk name %d", i); > - goto put_larbvenc; > + return ret; > } > clk_info->vcodec_clk = devm_clk_get(&pdev->dev, > clk_info->clk_name); > if (IS_ERR(clk_info->vcodec_clk)) { > mtk_v4l2_err("venc devm_clk_get (%d)%s fail", i, > clk_info->clk_name); > - ret = PTR_ERR(clk_info->vcodec_clk); > - goto put_larbvenc; > + return PTR_ERR(clk_info->vcodec_clk); > } > } > > return 0; > - > -put_larbvenc: > - put_device(pm->larbvenc); > - return ret; > } > > void mtk_vcodec_release_enc_pm(struct mtk_vcodec_dev *mtkdev) > { > pm_runtime_disable(mtkdev->pm.dev); > - put_device(mtkdev->pm.larbvenc); > } > > > @@ -108,11 +80,6 @@ void mtk_vcodec_enc_clock_on(struct mtk_vcodec_pm *pm) > } > } > > - ret = mtk_smi_larb_get(pm->larbvenc); > - if (ret) { > - mtk_v4l2_err("mtk_smi_larb_get larb3 fail %d", ret); > - goto clkerr; > - } > return; > > clkerr: > @@ -125,7 +92,6 @@ void mtk_vcodec_enc_clock_off(struct mtk_vcodec_pm *pm) > struct mtk_vcodec_clk *enc_clk = &pm->venc_clk; > int i = 0; > > - mtk_smi_larb_put(pm->larbvenc); > for (i = enc_clk->clk_num - 1; i >= 0; i--) > clk_disable_unprepare(enc_clk->clk_info[i].vcodec_clk); > } > _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B444CC433EF for ; Wed, 29 Sep 2021 12:13:41 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7C56561406 for ; Wed, 29 Sep 2021 12:13:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 7C56561406 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:Cc:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=GQ2LXyeZxNmWbuYEs0T026m0Sru4F9FWbG4JF42nufw=; b=HZNTmhtSPMxpxR3B8rfwUT8QOs M6hYY5HBDPv2XPzr3PT9ApvX1POlqrCYcIMyR6noyPDu1kw13YhRv3aw26gdUUTmoUZ7WLVanOivq CFoHJP0yJcXqPSbr99sHKyf7Gl8JlgCqCUhZojnQf6121ltiTSW0780CF4XNexV0ghQ7Mw3m+auj0 8xl1jA4IsVIhokVtX6ROemLMJSl0R0CYbJerGMo+YkEDqNutshUCp/PFWkVxtkkLkT4iD45Owjixt FcJDVG9LFontmsKmH+rH470WQ80QC/jvYYzUd1Mw3Km3UG/6KZ/NVKO5AEF9LgdCEsX2Cj1q4L++i HeW8KmKg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mVYSm-00B06O-C4; Wed, 29 Sep 2021 12:13:28 +0000 Received: from bhuna.collabora.co.uk ([46.235.227.227]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mVYSS-00AzzH-Qi; Wed, 29 Sep 2021 12:13:11 +0000 Received: from [IPv6:2a02:810a:880:f54:fd5c:7cb1:aaa8:78b1] (unknown [IPv6:2a02:810a:880:f54:fd5c:7cb1:aaa8:78b1]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: dafna) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 67C511F4428D; Wed, 29 Sep 2021 13:13:02 +0100 (BST) Subject: Re: [PATCH v8 09/12] media: mtk-vcodec: Get rid of mtk_smi_larb_get/put To: Yong Wu , Matthias Brugger , Joerg Roedel , Rob Herring , Krzysztof Kozlowski , David Airlie , Mauro Carvalho Chehab Cc: Evan Green , Robin Murphy , Tomasz Figa , Will Deacon , linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, youlin.pei@mediatek.com, Matthias Kaehlcke , anan.sun@mediatek.com, yi.kuo@mediatek.com, acourbot@chromium.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, Daniel Vetter , Chun-Kuang Hu , Philipp Zabel , Tiffany Lin , Hsin-Yi Wang , Eizan Miyamoto , anthony.huang@mediatek.com, Frank Wunderlich , Irui Wang References: <20210929013719.25120-1-yong.wu@mediatek.com> <20210929013719.25120-10-yong.wu@mediatek.com> From: Dafna Hirschfeld Message-ID: <02f444d5-9633-3f9c-2d1f-97ce073d1180@collabora.com> Date: Wed, 29 Sep 2021 14:13:00 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <20210929013719.25120-10-yong.wu@mediatek.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210929_051309_167034_AE1B5258 X-CRM114-Status: GOOD ( 28.64 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On 29.09.21 03:37, Yong Wu wrote: > MediaTek IOMMU has already added the device_link between the consumer > and smi-larb device. If the vcodec device call the pm_runtime_get_sync, > the smi-larb's pm_runtime_get_sync also be called automatically. > > CC: Tiffany Lin > CC: Irui Wang > Signed-off-by: Yong Wu > Reviewed-by: Evan Green > Acked-by: Tiffany Lin > Reviewed-by: Dafna Hirschfeld > --- > .../platform/mtk-vcodec/mtk_vcodec_dec_pm.c | 37 +++------------- > .../platform/mtk-vcodec/mtk_vcodec_drv.h | 3 -- > .../platform/mtk-vcodec/mtk_vcodec_enc.c | 1 - > .../platform/mtk-vcodec/mtk_vcodec_enc_pm.c | 44 +++---------------- > 4 files changed, 10 insertions(+), 75 deletions(-) > > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c > index 6038db96f71c..d0bf9aa3b29d 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c > @@ -8,14 +8,12 @@ > #include > #include > #include > -#include > > #include "mtk_vcodec_dec_pm.h" > #include "mtk_vcodec_util.h" > > int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > { > - struct device_node *node; > struct platform_device *pdev; > struct mtk_vcodec_pm *pm; > struct mtk_vcodec_clk *dec_clk; > @@ -26,18 +24,7 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > pm = &mtkdev->pm; > pm->mtkdev = mtkdev; > dec_clk = &pm->vdec_clk; > - node = of_parse_phandle(pdev->dev.of_node, "mediatek,larb", 0); > - if (!node) { > - mtk_v4l2_err("of_parse_phandle mediatek,larb fail!"); > - return -1; > - } > > - pdev = of_find_device_by_node(node); > - of_node_put(node); > - if (WARN_ON(!pdev)) { > - return -1; > - } > - pm->larbvdec = &pdev->dev; > pdev = mtkdev->plat_dev; > pm->dev = &pdev->dev; > > @@ -47,14 +34,11 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > dec_clk->clk_info = devm_kcalloc(&pdev->dev, > dec_clk->clk_num, sizeof(*clk_info), > GFP_KERNEL); > - if (!dec_clk->clk_info) { > - ret = -ENOMEM; > - goto put_device; > - } > + if (!dec_clk->clk_info) > + return -ENOMEM; > } else { > mtk_v4l2_err("Failed to get vdec clock count"); > - ret = -EINVAL; > - goto put_device; > + return -EINVAL; > } > > for (i = 0; i < dec_clk->clk_num; i++) { > @@ -63,29 +47,24 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > "clock-names", i, &clk_info->clk_name); > if (ret) { > mtk_v4l2_err("Failed to get clock name id = %d", i); > - goto put_device; > + return ret; > } > clk_info->vcodec_clk = devm_clk_get(&pdev->dev, > clk_info->clk_name); > if (IS_ERR(clk_info->vcodec_clk)) { > mtk_v4l2_err("devm_clk_get (%d)%s fail", i, > clk_info->clk_name); > - ret = PTR_ERR(clk_info->vcodec_clk); > - goto put_device; > + return PTR_ERR(clk_info->vcodec_clk); > } > } > > pm_runtime_enable(&pdev->dev); > return 0; > -put_device: > - put_device(pm->larbvdec); > - return ret; > } > > void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev) > { > pm_runtime_disable(dev->pm.dev); > - put_device(dev->pm.larbvdec); > } Now that functions only do 'pm_runtime_disable(dev->pm.dev);' so it will be more readable to remove the function mtk_vcodec_release_dec_pm and replace with pm_runtime_disable(dev->pm.dev); Same for the 'enc' equivalent. Thanks, Dafna > > int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm) > @@ -122,11 +101,6 @@ void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm) > } > } > > - ret = mtk_smi_larb_get(pm->larbvdec); > - if (ret) { > - mtk_v4l2_err("mtk_smi_larb_get larbvdec fail %d", ret); > - goto error; > - }> return; > > error: > @@ -139,7 +113,6 @@ void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm) > struct mtk_vcodec_clk *dec_clk = &pm->vdec_clk; > int i = 0; > > - mtk_smi_larb_put(pm->larbvdec); > for (i = dec_clk->clk_num - 1; i >= 0; i--) > clk_disable_unprepare(dec_clk->clk_info[i].vcodec_clk); > } > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > index c6c7672fecfb..64b73dd880ce 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > @@ -189,10 +189,7 @@ struct mtk_vcodec_clk { > */ > struct mtk_vcodec_pm { > struct mtk_vcodec_clk vdec_clk; > - struct device *larbvdec; > - > struct mtk_vcodec_clk venc_clk; > - struct device *larbvenc; > struct device *dev; > struct mtk_vcodec_dev *mtkdev; > }; > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c > index 416f356af363..9a1515cf862d 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c > @@ -8,7 +8,6 @@ > #include > #include > #include > -#include > #include > > #include "mtk_vcodec_drv.h" > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c > index 1b2e4930ed27..dffb190267ed 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c > @@ -8,58 +8,36 @@ > #include > #include > #include > -#include > > #include "mtk_vcodec_enc_pm.h" > #include "mtk_vcodec_util.h" > > int mtk_vcodec_init_enc_pm(struct mtk_vcodec_dev *mtkdev) > { > - struct device_node *node; > struct platform_device *pdev; > struct mtk_vcodec_pm *pm; > struct mtk_vcodec_clk *enc_clk; > struct mtk_vcodec_clk_info *clk_info; > int ret = 0, i = 0; > - struct device *dev; > > pdev = mtkdev->plat_dev; > pm = &mtkdev->pm; > memset(pm, 0, sizeof(struct mtk_vcodec_pm)); > pm->mtkdev = mtkdev; > pm->dev = &pdev->dev; > - dev = &pdev->dev; > enc_clk = &pm->venc_clk; > > - node = of_parse_phandle(dev->of_node, "mediatek,larb", 0); > - if (!node) { > - mtk_v4l2_err("no mediatek,larb found"); > - return -ENODEV; > - } > - pdev = of_find_device_by_node(node); > - of_node_put(node); > - if (!pdev) { > - mtk_v4l2_err("no mediatek,larb device found"); > - return -ENODEV; > - } > - pm->larbvenc = &pdev->dev; > - pdev = mtkdev->plat_dev; > - pm->dev = &pdev->dev; > - > enc_clk->clk_num = of_property_count_strings(pdev->dev.of_node, > "clock-names"); > if (enc_clk->clk_num > 0) { > enc_clk->clk_info = devm_kcalloc(&pdev->dev, > enc_clk->clk_num, sizeof(*clk_info), > GFP_KERNEL); > - if (!enc_clk->clk_info) { > - ret = -ENOMEM; > - goto put_larbvenc; > - } > + if (!enc_clk->clk_info) > + return -ENOMEM; > } else { > mtk_v4l2_err("Failed to get venc clock count"); > - ret = -EINVAL; > - goto put_larbvenc; > + return -EINVAL; > } > > for (i = 0; i < enc_clk->clk_num; i++) { > @@ -68,29 +46,23 @@ int mtk_vcodec_init_enc_pm(struct mtk_vcodec_dev *mtkdev) > "clock-names", i, &clk_info->clk_name); > if (ret) { > mtk_v4l2_err("venc failed to get clk name %d", i); > - goto put_larbvenc; > + return ret; > } > clk_info->vcodec_clk = devm_clk_get(&pdev->dev, > clk_info->clk_name); > if (IS_ERR(clk_info->vcodec_clk)) { > mtk_v4l2_err("venc devm_clk_get (%d)%s fail", i, > clk_info->clk_name); > - ret = PTR_ERR(clk_info->vcodec_clk); > - goto put_larbvenc; > + return PTR_ERR(clk_info->vcodec_clk); > } > } > > return 0; > - > -put_larbvenc: > - put_device(pm->larbvenc); > - return ret; > } > > void mtk_vcodec_release_enc_pm(struct mtk_vcodec_dev *mtkdev) > { > pm_runtime_disable(mtkdev->pm.dev); > - put_device(mtkdev->pm.larbvenc); > } > > > @@ -108,11 +80,6 @@ void mtk_vcodec_enc_clock_on(struct mtk_vcodec_pm *pm) > } > } > > - ret = mtk_smi_larb_get(pm->larbvenc); > - if (ret) { > - mtk_v4l2_err("mtk_smi_larb_get larb3 fail %d", ret); > - goto clkerr; > - } > return; > > clkerr: > @@ -125,7 +92,6 @@ void mtk_vcodec_enc_clock_off(struct mtk_vcodec_pm *pm) > struct mtk_vcodec_clk *enc_clk = &pm->venc_clk; > int i = 0; > > - mtk_smi_larb_put(pm->larbvenc); > for (i = enc_clk->clk_num - 1; i >= 0; i--) > clk_disable_unprepare(enc_clk->clk_info[i].vcodec_clk); > } > _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8E3AFC4332F for ; Wed, 29 Sep 2021 12:15:40 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 57B9A613D1 for ; Wed, 29 Sep 2021 12:15:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 57B9A613D1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:Cc:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=+j6t8NHAcrckh04MkWQhTdCKatxbuzJhgPNbGUdejT8=; b=1DxOfOKK+RNuAm6orUXOhiNuLE fWmIOL2380OzEJltm1XbQBJyp08l5srohWxuNYDOZY/GKg3lO2r22Js0asyKmHpqFozPZH36/mkz/ /jTOsVg4PyFAVhhO8LX4kCj5jw7G0vk0vA41fE6XsCtQPgoDKt3DgwmpgYleAmxutULkPsCRTnZOL wYhTrqXolYKfHhjw6Q97vRncw/ksZVs651zW7aYFtxqTxYk55XNLQkyI8quhZ/CLakCyUkUOVEJs1 iTwmVsAjwrof7wfXKqLGWlofKD7JYQ86ILnZ9mrxxwRoKiyHU+5dW4GXgvGIdcCTKnbSBa3KASfot P7Z3O6ag==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mVYSY-00B02p-NH; Wed, 29 Sep 2021 12:13:14 +0000 Received: from bhuna.collabora.co.uk ([46.235.227.227]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mVYSS-00AzzH-Qi; Wed, 29 Sep 2021 12:13:11 +0000 Received: from [IPv6:2a02:810a:880:f54:fd5c:7cb1:aaa8:78b1] (unknown [IPv6:2a02:810a:880:f54:fd5c:7cb1:aaa8:78b1]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: dafna) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 67C511F4428D; Wed, 29 Sep 2021 13:13:02 +0100 (BST) Subject: Re: [PATCH v8 09/12] media: mtk-vcodec: Get rid of mtk_smi_larb_get/put To: Yong Wu , Matthias Brugger , Joerg Roedel , Rob Herring , Krzysztof Kozlowski , David Airlie , Mauro Carvalho Chehab Cc: Evan Green , Robin Murphy , Tomasz Figa , Will Deacon , linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, youlin.pei@mediatek.com, Matthias Kaehlcke , anan.sun@mediatek.com, yi.kuo@mediatek.com, acourbot@chromium.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, Daniel Vetter , Chun-Kuang Hu , Philipp Zabel , Tiffany Lin , Hsin-Yi Wang , Eizan Miyamoto , anthony.huang@mediatek.com, Frank Wunderlich , Irui Wang References: <20210929013719.25120-1-yong.wu@mediatek.com> <20210929013719.25120-10-yong.wu@mediatek.com> From: Dafna Hirschfeld Message-ID: <02f444d5-9633-3f9c-2d1f-97ce073d1180@collabora.com> Date: Wed, 29 Sep 2021 14:13:00 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <20210929013719.25120-10-yong.wu@mediatek.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210929_051309_167034_AE1B5258 X-CRM114-Status: GOOD ( 28.64 ) 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-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 29.09.21 03:37, Yong Wu wrote: > MediaTek IOMMU has already added the device_link between the consumer > and smi-larb device. If the vcodec device call the pm_runtime_get_sync, > the smi-larb's pm_runtime_get_sync also be called automatically. > > CC: Tiffany Lin > CC: Irui Wang > Signed-off-by: Yong Wu > Reviewed-by: Evan Green > Acked-by: Tiffany Lin > Reviewed-by: Dafna Hirschfeld > --- > .../platform/mtk-vcodec/mtk_vcodec_dec_pm.c | 37 +++------------- > .../platform/mtk-vcodec/mtk_vcodec_drv.h | 3 -- > .../platform/mtk-vcodec/mtk_vcodec_enc.c | 1 - > .../platform/mtk-vcodec/mtk_vcodec_enc_pm.c | 44 +++---------------- > 4 files changed, 10 insertions(+), 75 deletions(-) > > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c > index 6038db96f71c..d0bf9aa3b29d 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c > @@ -8,14 +8,12 @@ > #include > #include > #include > -#include > > #include "mtk_vcodec_dec_pm.h" > #include "mtk_vcodec_util.h" > > int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > { > - struct device_node *node; > struct platform_device *pdev; > struct mtk_vcodec_pm *pm; > struct mtk_vcodec_clk *dec_clk; > @@ -26,18 +24,7 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > pm = &mtkdev->pm; > pm->mtkdev = mtkdev; > dec_clk = &pm->vdec_clk; > - node = of_parse_phandle(pdev->dev.of_node, "mediatek,larb", 0); > - if (!node) { > - mtk_v4l2_err("of_parse_phandle mediatek,larb fail!"); > - return -1; > - } > > - pdev = of_find_device_by_node(node); > - of_node_put(node); > - if (WARN_ON(!pdev)) { > - return -1; > - } > - pm->larbvdec = &pdev->dev; > pdev = mtkdev->plat_dev; > pm->dev = &pdev->dev; > > @@ -47,14 +34,11 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > dec_clk->clk_info = devm_kcalloc(&pdev->dev, > dec_clk->clk_num, sizeof(*clk_info), > GFP_KERNEL); > - if (!dec_clk->clk_info) { > - ret = -ENOMEM; > - goto put_device; > - } > + if (!dec_clk->clk_info) > + return -ENOMEM; > } else { > mtk_v4l2_err("Failed to get vdec clock count"); > - ret = -EINVAL; > - goto put_device; > + return -EINVAL; > } > > for (i = 0; i < dec_clk->clk_num; i++) { > @@ -63,29 +47,24 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) > "clock-names", i, &clk_info->clk_name); > if (ret) { > mtk_v4l2_err("Failed to get clock name id = %d", i); > - goto put_device; > + return ret; > } > clk_info->vcodec_clk = devm_clk_get(&pdev->dev, > clk_info->clk_name); > if (IS_ERR(clk_info->vcodec_clk)) { > mtk_v4l2_err("devm_clk_get (%d)%s fail", i, > clk_info->clk_name); > - ret = PTR_ERR(clk_info->vcodec_clk); > - goto put_device; > + return PTR_ERR(clk_info->vcodec_clk); > } > } > > pm_runtime_enable(&pdev->dev); > return 0; > -put_device: > - put_device(pm->larbvdec); > - return ret; > } > > void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev) > { > pm_runtime_disable(dev->pm.dev); > - put_device(dev->pm.larbvdec); > } Now that functions only do 'pm_runtime_disable(dev->pm.dev);' so it will be more readable to remove the function mtk_vcodec_release_dec_pm and replace with pm_runtime_disable(dev->pm.dev); Same for the 'enc' equivalent. Thanks, Dafna > > int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm) > @@ -122,11 +101,6 @@ void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm) > } > } > > - ret = mtk_smi_larb_get(pm->larbvdec); > - if (ret) { > - mtk_v4l2_err("mtk_smi_larb_get larbvdec fail %d", ret); > - goto error; > - }> return; > > error: > @@ -139,7 +113,6 @@ void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm) > struct mtk_vcodec_clk *dec_clk = &pm->vdec_clk; > int i = 0; > > - mtk_smi_larb_put(pm->larbvdec); > for (i = dec_clk->clk_num - 1; i >= 0; i--) > clk_disable_unprepare(dec_clk->clk_info[i].vcodec_clk); > } > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > index c6c7672fecfb..64b73dd880ce 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > @@ -189,10 +189,7 @@ struct mtk_vcodec_clk { > */ > struct mtk_vcodec_pm { > struct mtk_vcodec_clk vdec_clk; > - struct device *larbvdec; > - > struct mtk_vcodec_clk venc_clk; > - struct device *larbvenc; > struct device *dev; > struct mtk_vcodec_dev *mtkdev; > }; > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c > index 416f356af363..9a1515cf862d 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c > @@ -8,7 +8,6 @@ > #include > #include > #include > -#include > #include > > #include "mtk_vcodec_drv.h" > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c > index 1b2e4930ed27..dffb190267ed 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c > @@ -8,58 +8,36 @@ > #include > #include > #include > -#include > > #include "mtk_vcodec_enc_pm.h" > #include "mtk_vcodec_util.h" > > int mtk_vcodec_init_enc_pm(struct mtk_vcodec_dev *mtkdev) > { > - struct device_node *node; > struct platform_device *pdev; > struct mtk_vcodec_pm *pm; > struct mtk_vcodec_clk *enc_clk; > struct mtk_vcodec_clk_info *clk_info; > int ret = 0, i = 0; > - struct device *dev; > > pdev = mtkdev->plat_dev; > pm = &mtkdev->pm; > memset(pm, 0, sizeof(struct mtk_vcodec_pm)); > pm->mtkdev = mtkdev; > pm->dev = &pdev->dev; > - dev = &pdev->dev; > enc_clk = &pm->venc_clk; > > - node = of_parse_phandle(dev->of_node, "mediatek,larb", 0); > - if (!node) { > - mtk_v4l2_err("no mediatek,larb found"); > - return -ENODEV; > - } > - pdev = of_find_device_by_node(node); > - of_node_put(node); > - if (!pdev) { > - mtk_v4l2_err("no mediatek,larb device found"); > - return -ENODEV; > - } > - pm->larbvenc = &pdev->dev; > - pdev = mtkdev->plat_dev; > - pm->dev = &pdev->dev; > - > enc_clk->clk_num = of_property_count_strings(pdev->dev.of_node, > "clock-names"); > if (enc_clk->clk_num > 0) { > enc_clk->clk_info = devm_kcalloc(&pdev->dev, > enc_clk->clk_num, sizeof(*clk_info), > GFP_KERNEL); > - if (!enc_clk->clk_info) { > - ret = -ENOMEM; > - goto put_larbvenc; > - } > + if (!enc_clk->clk_info) > + return -ENOMEM; > } else { > mtk_v4l2_err("Failed to get venc clock count"); > - ret = -EINVAL; > - goto put_larbvenc; > + return -EINVAL; > } > > for (i = 0; i < enc_clk->clk_num; i++) { > @@ -68,29 +46,23 @@ int mtk_vcodec_init_enc_pm(struct mtk_vcodec_dev *mtkdev) > "clock-names", i, &clk_info->clk_name); > if (ret) { > mtk_v4l2_err("venc failed to get clk name %d", i); > - goto put_larbvenc; > + return ret; > } > clk_info->vcodec_clk = devm_clk_get(&pdev->dev, > clk_info->clk_name); > if (IS_ERR(clk_info->vcodec_clk)) { > mtk_v4l2_err("venc devm_clk_get (%d)%s fail", i, > clk_info->clk_name); > - ret = PTR_ERR(clk_info->vcodec_clk); > - goto put_larbvenc; > + return PTR_ERR(clk_info->vcodec_clk); > } > } > > return 0; > - > -put_larbvenc: > - put_device(pm->larbvenc); > - return ret; > } > > void mtk_vcodec_release_enc_pm(struct mtk_vcodec_dev *mtkdev) > { > pm_runtime_disable(mtkdev->pm.dev); > - put_device(mtkdev->pm.larbvenc); > } > > > @@ -108,11 +80,6 @@ void mtk_vcodec_enc_clock_on(struct mtk_vcodec_pm *pm) > } > } > > - ret = mtk_smi_larb_get(pm->larbvenc); > - if (ret) { > - mtk_v4l2_err("mtk_smi_larb_get larb3 fail %d", ret); > - goto clkerr; > - } > return; > > clkerr: > @@ -125,7 +92,6 @@ void mtk_vcodec_enc_clock_off(struct mtk_vcodec_pm *pm) > struct mtk_vcodec_clk *enc_clk = &pm->venc_clk; > int i = 0; > > - mtk_smi_larb_put(pm->larbvenc); > for (i = enc_clk->clk_num - 1; i >= 0; i--) > clk_disable_unprepare(enc_clk->clk_info[i].vcodec_clk); > } > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel