From: Xia Jiang <xia.jiang@mediatek.com>
To: Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Rick Chang <rick.chang@mediatek.com>
Cc: <linux-media@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Tomasz Figa <tfiga@chromium.org>, <srv_heupstream@mediatek.com>,
<senozhatsky@chromium.org>, <mojahsu@chromium.org>,
<drinkcat@chromium.org>, <maoguang.meng@mediatek.com>,
<sj.huang@mediatek.com>, Xia Jiang <xia.jiang@mediatek.com>
Subject: [PATCH v8 06/14] media: platform: Improve the implementation of the system PM ops
Date: Fri, 3 Apr 2020 17:40:25 +0800 [thread overview]
Message-ID: <20200403094033.8288-7-xia.jiang@mediatek.com> (raw)
In-Reply-To: <20200403094033.8288-1-xia.jiang@mediatek.com>
Cancel reset hw operation in suspend and resume function because this
will be done in device_run().
Add spin_lock and unlock operation in irq and resume function to make
sure that the current frame is processed completely before suspend.
Signed-off-by: Xia Jiang <xia.jiang@mediatek.com>
---
drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index dd5cadd101ef..2fa3711fdc9b 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -911,6 +911,8 @@ static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
u32 dec_ret;
int i;
+ spin_lock(&jpeg->hw_lock);
+
dec_ret = mtk_jpeg_dec_get_int_status(jpeg->dec_reg_base);
dec_irq_ret = mtk_jpeg_dec_enum_result(dec_ret);
ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev);
@@ -941,6 +943,7 @@ static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
v4l2_m2m_buf_done(src_buf, buf_state);
v4l2_m2m_buf_done(dst_buf, buf_state);
v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+ spin_unlock(&jpeg->hw_lock);
pm_runtime_put_sync(ctx->jpeg->dev);
return IRQ_HANDLED;
}
@@ -1191,7 +1194,6 @@ static __maybe_unused int mtk_jpeg_pm_suspend(struct device *dev)
{
struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
- mtk_jpeg_dec_reset(jpeg->dec_reg_base);
mtk_jpeg_clk_off(jpeg);
return 0;
@@ -1202,19 +1204,24 @@ static __maybe_unused int mtk_jpeg_pm_resume(struct device *dev)
struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
mtk_jpeg_clk_on(jpeg);
- mtk_jpeg_dec_reset(jpeg->dec_reg_base);
return 0;
}
static __maybe_unused int mtk_jpeg_suspend(struct device *dev)
{
+ struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
+ unsigned long flags;
int ret;
if (pm_runtime_suspended(dev))
return 0;
+ spin_lock_irqsave(&jpeg->hw_lock, flags);
+
ret = mtk_jpeg_pm_suspend(dev);
+
+ spin_unlock_irqrestore(&jpeg->hw_lock, flags);
return ret;
}
--
2.18.0
next prev parent reply other threads:[~2020-04-03 9:40 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-03 9:40 [PATCH v8 00/14] Add support for mt2701 JPEG ENC support Xia Jiang
2020-04-03 9:40 ` [PATCH v8 01/14] media: platform: Improve subscribe event flow for bug fixing Xia Jiang
2020-05-21 13:45 ` Tomasz Figa
2020-04-03 9:40 ` [PATCH v8 02/14] media: platform: Improve queue set up " Xia Jiang
2020-05-21 13:46 ` Tomasz Figa
2020-04-03 9:40 ` [PATCH v8 03/14] media: platform: Improve getting and requesting irq " Xia Jiang
2020-05-21 13:47 ` Tomasz Figa
2020-04-03 9:40 ` [PATCH v8 04/14] media: platform: Change the fixed device node number to unfixed value Xia Jiang
2020-05-11 8:39 ` Hans Verkuil
2020-05-21 13:59 ` Tomasz Figa
2020-06-05 6:02 ` Xia Jiang
2020-04-03 9:40 ` [PATCH v8 05/14] media: platform: Improve power on and power off flow Xia Jiang
2020-05-21 15:22 ` Tomasz Figa
2020-06-05 6:03 ` Xia Jiang
2020-04-03 9:40 ` Xia Jiang [this message]
2020-05-21 15:32 ` [PATCH v8 06/14] media: platform: Improve the implementation of the system PM ops Tomasz Figa
2020-05-27 1:52 ` Xia Jiang
2020-05-27 14:46 ` Tomasz Figa
2020-04-03 9:40 ` [PATCH v8 07/14] media: platform: Use kernel native functions for improving code quality Xia Jiang
2020-05-21 15:41 ` Tomasz Figa
2020-06-05 6:41 ` Xia Jiang
2020-04-03 9:40 ` [PATCH v8 08/14] media: platform: Change case " Xia Jiang
2020-05-11 8:37 ` Hans Verkuil
2020-06-05 8:04 ` Xia Jiang
2020-04-03 9:40 ` [PATCH v8 09/14] media: platform: Change MTK_JPEG_COMP_MAX macro definition location Xia Jiang
2020-05-21 15:44 ` Tomasz Figa
2020-04-03 9:40 ` [PATCH v8 10/14] media: platform: Delete redundant code for improving code quality Xia Jiang
2020-05-21 15:49 ` Tomasz Figa
2020-06-05 6:41 ` Xia Jiang
2020-04-03 9:40 ` [PATCH v8 11/14] media: dt-bindings: Add jpeg enc device tree node document Xia Jiang
2020-05-21 16:00 ` Tomasz Figa
2020-06-18 3:40 ` Xia Jiang
2020-06-18 12:34 ` Tomasz Figa
2020-04-03 9:40 ` [PATCH v8 12/14] arm: dts: Add jpeg enc device tree node Xia Jiang
2020-04-07 3:52 ` Yingjoe Chen
2020-04-03 9:40 ` [PATCH v8 13/14] media: platform: Rename jpeg dec file name Xia Jiang
2020-05-21 16:02 ` Tomasz Figa
2020-04-03 9:40 ` [PATCH v8 14/14] media: platform: Add jpeg dec/enc feature Xia Jiang
2020-05-11 9:04 ` Hans Verkuil
2020-05-21 16:08 ` Tomasz Figa
2020-06-05 8:07 ` Xia Jiang
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