From: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
To: Yong Wu <yong.wu@mediatek.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Joerg Roedel <joro@8bytes.org>, Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
David Airlie <airlied@linux.ie>,
Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Evan Green <evgreen@chromium.org>,
Robin Murphy <robin.murphy@arm.com>,
Tomasz Figa <tfiga@chromium.org>,
Will Deacon <will.deacon@arm.com>,
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,
Nicolas Boichat <drinkcat@chromium.org>,
Matthias Kaehlcke <mka@chromium.org>,
anan.sun@mediatek.com, ming-fan.chen@mediatek.com,
yi.kuo@mediatek.com, acourbot@chromium.org,
linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org,
Daniel Vetter <daniel@ffwll.ch>,
Chun-Kuang Hu <chunkuang.hu@kernel.org>,
Philipp Zabel <p.zabel@pengutronix.de>,
Xia Jiang <xia.jiang@mediatek.com>,
Tiffany Lin <tiffany.lin@mediatek.com>,
Hsin-Yi Wang <hsinyi@chromium.org>,
Eizan Miyamoto <eizan@chromium.org>,
anthony.huang@mediatek.com, Irui Wang <irui.wang@mediatek.com>
Subject: Re: [PATCH v6 08/11] media: mtk-vcodec: Get rid of mtk_smi_larb_get/put
Date: Wed, 14 Jul 2021 10:31:20 +0200 [thread overview]
Message-ID: <61f0bc1f-3324-4c3d-2cc6-daa0d9ad4769@collabora.com> (raw)
In-Reply-To: <20210714025626.5528-9-yong.wu@mediatek.com>
On 14.07.21 04:56, 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 <tiffany.lin@mediatek.com>
> CC: Irui Wang <irui.wang@mediatek.com>
> Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> Reviewed-by: Evan Green <evgreen@chromium.org>
> Acked-by: Tiffany Lin <tiffany.lin@mediatek.com>
Reviewed-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
> ---
> .../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 <linux/of_address.h>
> #include <linux/of_platform.h>
> #include <linux/pm_runtime.h>
> -#include <soc/mediatek/smi.h>
>
> #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);
> }
>
> 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 <media/v4l2-event.h>
> #include <media/v4l2-mem2mem.h>
> #include <media/videobuf2-dma-contig.h>
> -#include <soc/mediatek/smi.h>
> #include <linux/pm_runtime.h>
>
> #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 <linux/of_address.h>
> #include <linux/of_platform.h>
> #include <linux/pm_runtime.h>
> -#include <soc/mediatek/smi.h>
>
> #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);
> }
>
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next prev parent reply other threads:[~2021-07-14 8:32 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-14 2:56 [PATCH v6 00/11] Clean up "mediatek,larb" Yong Wu
2021-07-14 2:56 ` [PATCH v6 01/11] dt-binding: mediatek: Get rid of mediatek, larb for multimedia HW Yong Wu
2021-07-14 8:13 ` Dafna Hirschfeld
2021-07-14 8:49 ` Dafna Hirschfeld
2021-07-14 2:56 ` [PATCH v6 02/11] iommu/mediatek: Add probe_defer for smi-larb Yong Wu
2021-07-14 2:56 ` [PATCH v6 03/11] iommu/mediatek: Add device_link between the consumer and the larb devices Yong Wu
2021-07-14 8:26 ` Dafna Hirschfeld
2021-07-14 11:16 ` Yong Wu
2021-07-14 2:56 ` [PATCH v6 04/11] media: mtk-jpeg: Get rid of mtk_smi_larb_get/put Yong Wu
2021-07-14 8:28 ` Dafna Hirschfeld
2021-07-14 2:56 ` [PATCH v6 05/11] media: mtk-mdp: " Yong Wu
2021-07-14 8:29 ` Dafna Hirschfeld
2021-07-14 2:56 ` [PATCH v6 06/11] drm/mediatek: Add pm runtime support for ovl and rdma Yong Wu
2021-07-14 8:44 ` Dafna Hirschfeld
2021-07-14 11:17 ` Yong Wu
2021-07-14 2:56 ` [PATCH v6 07/11] drm/mediatek: Get rid of mtk_smi_larb_get/put Yong Wu
2021-07-14 8:30 ` Dafna Hirschfeld
2021-07-14 2:56 ` [PATCH v6 08/11] media: mtk-vcodec: " Yong Wu
2021-07-14 8:31 ` Dafna Hirschfeld [this message]
2021-07-14 2:56 ` [PATCH v6 09/11] memory: mtk-smi: " Yong Wu
2021-07-14 8:32 ` Dafna Hirschfeld
2021-07-14 2:56 ` [PATCH v6 10/11] arm: dts: mediatek: Get rid of mediatek, larb for MM nodes Yong Wu
2021-07-14 2:56 ` [PATCH v6 11/11] arm64: " Yong Wu
2021-07-14 8:56 ` [PATCH v6 00/11] Clean up "mediatek,larb" Dafna Hirschfeld
2021-07-14 11:18 ` Yong Wu
2021-07-14 8:59 ` Aw: " Frank Wunderlich
2021-07-14 11:18 ` Yong Wu
2021-07-14 11:23 ` Aw: " Frank Wunderlich
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