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Message-ID: <20210730025238.22456-10-yong.wu@mediatek.com>
Date: Fri, 30 Jul 2021 10:52:35 +0800
From: Yong Wu <yong.wu@...iatek.com>
To: Matthias Brugger <matthias.bgg@...il.com>,
Joerg Roedel <joro@...tes.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
David Airlie <airlied@...ux.ie>,
Mauro Carvalho Chehab <mchehab@...nel.org>
CC: Evan Green <evgreen@...omium.org>,
Robin Murphy <robin.murphy@....com>,
Tomasz Figa <tfiga@...omium.org>,
Will Deacon <will.deacon@....com>,
<linux-mediatek@...ts.infradead.org>,
<srv_heupstream@...iatek.com>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<iommu@...ts.linux-foundation.org>, <yong.wu@...iatek.com>,
<youlin.pei@...iatek.com>, Nicolas Boichat <drinkcat@...omium.org>,
Matthias Kaehlcke <mka@...omium.org>, <anan.sun@...iatek.com>,
<ming-fan.chen@...iatek.com>, <yi.kuo@...iatek.com>,
<acourbot@...omium.org>, <linux-media@...r.kernel.org>,
<dri-devel@...ts.freedesktop.org>, Daniel Vetter <daniel@...ll.ch>,
Chun-Kuang Hu <chunkuang.hu@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>,
Xia Jiang <xia.jiang@...iatek.com>,
Tiffany Lin <tiffany.lin@...iatek.com>,
Dafna Hirschfeld <dafna.hirschfeld@...labora.com>,
Hsin-Yi Wang <hsinyi@...omium.org>,
Eizan Miyamoto <eizan@...omium.org>,
<anthony.huang@...iatek.com>,
Frank Wunderlich <frank-w@...lic-files.de>,
Irui Wang <irui.wang@...iatek.com>
Subject: [PATCH v7 09/12] media: mtk-vcodec: Get rid of mtk_smi_larb_get/put
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@...iatek.com>
CC: Irui Wang <irui.wang@...iatek.com>
Signed-off-by: Yong Wu <yong.wu@...iatek.com>
Reviewed-by: Evan Green <evgreen@...omium.org>
Acked-by: Tiffany Lin <tiffany.lin@...iatek.com>
Reviewed-by: Dafna Hirschfeld <dafna.hirschfeld@...labora.com>
Tested-by: Dafna Hirschfeld <dafna.hirschfeld@...labora.com> # on mt8173
---
.../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);
}
--
2.18.0
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