> -----Original Message-----
> From: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> Sent: Saturday, November 30, 2024 4:56 PM
> To: Xin Ji <xji@xxxxxxxxxxxxxxxx>
> Cc: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>; Neil Armstrong
> <neil.armstrong@xxxxxxxxxx>; Robert Foss <rfoss@xxxxxxxxxx>; Laurent Pinchart
> <Laurent.pinchart@xxxxxxxxxxxxxxxx>; Jonas Karlman <jonas@xxxxxxxxx>;
> Jernej Skrabec <jernej.skrabec@xxxxxxxxx>; Maarten Lankhorst
> <maarten.lankhorst@xxxxxxxxxxxxxxx>; Maxime Ripard <mripard@xxxxxxxxxx>;
> Thomas Zimmermann <tzimmermann@xxxxxxx>; David Airlie
> <airlied@xxxxxxxxx>; Simona Vetter <simona@xxxxxxxx>; Bernie Liang
> <bliang@xxxxxxxxxxxxxxxx>; Qilin Wen <qwen@xxxxxxxxxxxxxxxx>;
> treapking@xxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH] drm/bridge:anx7625: Update HDCP status at
> atomic_disable()
>
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>
> On Wed, Nov 27, 2024 at 11:02:20AM +0800, Xin Ji wrote:
> > Update HDCP content_protection to
> > DRM_MODE_CONTENT_PROTECTION_UNDESIRED
> > in bridge .atomic_disable().
>
> PLease describe why, not what.
Hi Dmitry Baryshkov, OK, I'll add more describe, thanks!
>
> >
> > Signed-off-by: Xin Ji <xji@xxxxxxxxxxxxxxxx>
> > ---
> > drivers/gpu/drm/bridge/analogix/anx7625.c | 25
> > ++++++++++++++++++-----
> > 1 file changed, 20 insertions(+), 5 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c
> > b/drivers/gpu/drm/bridge/analogix/anx7625.c
> > index a2675b121fe4..a75f519ddcb8 100644
> > --- a/drivers/gpu/drm/bridge/analogix/anx7625.c
> > +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
> > @@ -861,6 +861,22 @@ static int anx7625_hdcp_disable(struct anx7625_data
> *ctx)
> > TX_HDCP_CTRL0, ~HARD_AUTH_EN & 0xFF);
> > }
> >
> > +static void anx7625_hdcp_disable_and_update_cp(struct anx7625_data
> > +*ctx) {
> > + struct device *dev = ctx->dev;
> > +
> > + if (!ctx->connector)
> > + return;
> > +
> > + anx7625_hdcp_disable(ctx);
> > +
> > + ctx->hdcp_cp = DRM_MODE_CONTENT_PROTECTION_UNDESIRED;
> > + drm_hdcp_update_content_protection(ctx->connector,
> > + ctx->hdcp_cp);
> > +
> > + dev_dbg(dev, "update CP to UNDESIRE\n"); }
> > +
> > static int anx7625_hdcp_enable(struct anx7625_data *ctx) {
> > u8 bcap;
> > @@ -2165,11 +2181,8 @@ static int anx7625_connector_atomic_check(struct
> anx7625_data *ctx,
> > dev_err(dev, "current CP is not ENABLED\n");
> > return -EINVAL;
> > }
> > - anx7625_hdcp_disable(ctx);
> > - ctx->hdcp_cp = DRM_MODE_CONTENT_PROTECTION_UNDESIRED;
> > - drm_hdcp_update_content_protection(ctx->connector,
> > - ctx->hdcp_cp);
> > - dev_dbg(dev, "update CP to UNDESIRE\n");
> > +
> > + anx7625_hdcp_disable_and_update_cp(ctx);
> > }
> >
> > if (cp == DRM_MODE_CONTENT_PROTECTION_ENABLED) { @@ -2449,6
> > +2462,8 @@ static void anx7625_bridge_atomic_disable(struct drm_bridge
> > *bridge,
> >
> > dev_dbg(dev, "drm atomic disable\n");
> >
> > + anx7625_hdcp_disable_and_update_cp(ctx);
> > +
> > ctx->connector = NULL;
> > anx7625_dp_stop(ctx);
> >
> > --
> > 2.25.1
> >
>
> --
> With best wishes
> Dmitry
