linux-kernel - Re: [PATCH v11, 02/19] media: mtk-vcodec: Align vcodec wake up interrupt interface

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Date:   Wed, 1 Dec 2021 15:58:30 -0800
From:   Steve Cho <stevecho@...omium.org>
To:     Yunfei Dong <yunfei.dong@...iatek.com>
Cc:     Alexandre Courbot <acourbot@...omium.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Tzung-Bi Shih <tzungbi@...omium.org>,
        Tiffany Lin <tiffany.lin@...iatek.com>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Tomasz Figa <tfiga@...gle.com>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Fritz Koenig <frkoenig@...omium.org>,
        Dafna Hirschfeld <dafna.hirschfeld@...labora.com>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Irui Wang <irui.wang@...iatek.com>,
        linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        srv_heupstream@...iatek.com, linux-mediatek@...ts.infradead.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v11, 02/19] media: mtk-vcodec: Align vcodec wake up
 interrupt interface

Reviewed-by: Steve Cho <stevecho@...omium.org>

On Wed, Dec 1, 2021 at 3:55 PM Steve Cho <stevecho@...omium.org> wrote:
>
> LGTM.
>
> On Sun, Nov 28, 2021 at 7:44 PM Yunfei Dong <yunfei.dong@...iatek.com> wrote:
> >
> > Vdec and venc can use the same function to wake up interrupt event.
> >
> > Reviewed-by: Tzung-Bi Shih <tzungbi@...gle.com>
> > Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> > Signed-off-by: Yunfei Dong <yunfei.dong@...iatek.com>
> > ---
> >  drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 9 +--------
> >  drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h     | 8 ++++++++
> >  drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c | 8 --------
> >  3 files changed, 9 insertions(+), 16 deletions(-)
> >
> > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
> > index 59caf2163349..055d50e52720 100644
> > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
> > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
> > @@ -31,13 +31,6 @@
> >  module_param(mtk_v4l2_dbg_level, int, 0644);
> >  module_param(mtk_vcodec_dbg, bool, 0644);
> >
> > -/* Wake up context wait_queue */
> > -static void wake_up_ctx(struct mtk_vcodec_ctx *ctx)
> > -{
> > -       ctx->int_cond = 1;
> > -       wake_up_interruptible(&ctx->queue);
> > -}
> > -
> >  static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)
> >  {
> >         struct mtk_vcodec_dev *dev = priv;
> > @@ -69,7 +62,7 @@ static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)
> >         writel((readl(vdec_misc_addr) & ~VDEC_IRQ_CLR),
> >                 dev->reg_base[VDEC_MISC] + VDEC_IRQ_CFG_REG);
> >
> > -       wake_up_ctx(ctx);
> > +       wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED);
>
> Assuming setting up reason doesn't change functionality.
>
> >
> >         mtk_v4l2_debug(3,
> >                         "mtk_vcodec_dec_irq_handler :wake up ctx %d, dec_done_status=%x",
> > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
> > index 581522177308..1d2370608d0d 100644
> > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
> > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
> > @@ -473,4 +473,12 @@ static inline struct mtk_vcodec_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl)
> >         return container_of(ctrl->handler, struct mtk_vcodec_ctx, ctrl_hdl);
> >  }
> >
> > +/* Wake up context wait_queue */
> > +static inline void wake_up_ctx(struct mtk_vcodec_ctx *ctx, unsigned int reason)
> > +{
> > +       ctx->int_cond = 1;
> > +       ctx->int_type = reason;
> > +       wake_up_interruptible(&ctx->queue);
> > +}
> > +
> >  #endif /* _MTK_VCODEC_DRV_H_ */
> > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
> > index eed67394cf46..7c3487fb3498 100644
> > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
> > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
> > @@ -65,14 +65,6 @@ static const struct mtk_video_fmt mtk_video_formats_capture_vp8[] =  {
> >         },
> >  };
> >
> > -/* Wake up context wait_queue */
> > -static void wake_up_ctx(struct mtk_vcodec_ctx *ctx, unsigned int reason)
> > -{
> > -       ctx->int_cond = 1;
> > -       ctx->int_type = reason;
> > -       wake_up_interruptible(&ctx->queue);
> > -}
> > -
> >  static void clean_irq_status(unsigned int irq_status, void __iomem *addr)
> >  {
> >         if (irq_status & MTK_VENC_IRQ_STATUS_PAUSE)
> > --
> > 2.25.1
> >