linux-kernel - Re: [PATCH v7 2/6] drm/bridge: cadence: cdns-mhdp8546*: Change drm

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Message-ID: <ae3snoap64r252sbqhsshsadxfmlqdfn6b4o5fgfcmxppglkqf@2lsstfsghzwb>
Date: Mon, 6 Oct 2025 02:08:16 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Harikrishna Shenoy <h-shenoy@...com>
Cc: andrzej.hajda@...el.com, neil.armstrong@...aro.org, rfoss@...nel.org,
        Laurent.pinchart@...asonboard.com, jonas@...boo.se,
        jernej.skrabec@...il.com, maarten.lankhorst@...ux.intel.com,
        mripard@...nel.org, tzimmermann@...e.de, airlied@...il.com,
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        viro@...iv.linux.org.uk, aradhya.bhatia@...ux.dev, javierm@...hat.com,
        tomi.valkeinen@...asonboard.com, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, devarsht@...com, u-kumar1@...com,
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Subject: Re: [PATCH v7 2/6] drm/bridge: cadence: cdns-mhdp8546*: Change
 drm_connector from structure to pointer

On Mon, Sep 29, 2025 at 02:09:32PM +0530, Harikrishna Shenoy wrote:
> From: Jayesh Choudhary <j-choudhary@...com>
> 
> After adding DBANC framework, mhdp->connector is not initialised during
> bridge_attach(). The connector is however required in few driver calls
> like cdns_mhdp_hdcp_enable() and cdns_mhdp_modeset_retry_fn().
> Now that we have dropped the legacy code which became redundant
> with introduction of DBNAC usecase in driver, we can cleanly switch
> to drm_connector pointer instead of structure.
> 
> Set it in bridge_enable() and clear it in bridge_disable(),
> and make appropriate changes.
> 
> This allows us to dynamically set the reference in bridge_enable() when
> the connector becomes available and clear it in bridge_disable().
> This change is necessary to properly integrate with the DBANC framework
> while maintaining all connector-dependent functionality in the driver.
> 
> Signed-off-by: Jayesh Choudhary <j-choudhary@...com>
> Signed-off-by: Harikrishna Shenoy <h-shenoy@...com>
> ---
>  drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c | 12 ++++++------
>  drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.h |  2 +-
>  drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c |  8 ++++----
>  3 files changed, 11 insertions(+), 11 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>


-- 
With best wishes
Dmitry