From: "Luca Ceresoli" <luca.ceresoli@bootlin.com>
To: "Harikrishna Shenoy" <h-shenoy@ti.com>,
<Laurent.pinchart@ideasonboard.com>, <airlied@gmail.com>,
<andrzej.hajda@intel.com>, <andy.yan@rock-chips.com>,
<aradhya.bhatia@linux.dev>, <devarsht@ti.com>,
<dianders@chromium.org>, <dri-devel@lists.freedesktop.org>,
<javierm@redhat.com>, <jernej.skrabec@gmail.com>,
<jonas@kwiboo.se>, <linux-kernel@vger.kernel.org>,
<linux@treblig.org>, <lumag@kernel.org>, <lyude@redhat.com>,
<maarten.lankhorst@linux.intel.com>, <mordan@ispras.ru>,
<mripard@kernel.org>, <neil.armstrong@linaro.org>,
<rfoss@kernel.org>, <s-jain1@ti.com>, <simona@ffwll.ch>,
<tomi.valkeinen@ideasonboard.com>, <tzimmermann@suse.de>,
<u-kumar1@ti.com>
Subject: Re: [PATCH v10 3/6] drm/bridge: cadence: cdns-mhdp8546-core: Handle HDCP state in bridge atomic check
Date: Mon, 09 Mar 2026 18:55:15 +0100 [thread overview]
Message-ID: <DGYG0P2MMM52.2GLXWIUN0VC0C@bootlin.com> (raw)
In-Reply-To: <20251209120332.3559893-4-h-shenoy@ti.com>
On Tue Dec 9, 2025 at 1:03 PM CET, Harikrishna Shenoy wrote:
> Now that we have DRM_BRIDGE_ATTACH_NO_CONNECTOR framework, handle the
> HDCP state change in bridge atomic check as well to enable correct
> functioning for HDCP in both DRM_BRIDGE_ATTACH_NO_CONNECTOR and
> !DRM_BRIDGE_ATTACH_NO_CONNECTOR case.
>
> Without this patch, when using DRM_BRIDGE_ATTACH_NO_CONNECTOR flag, HDCP
> state changes would not be properly handled during atomic commits,
> potentially leading to HDCP authentication failures or incorrect
> protection status for content requiring HDCP encryption.
>
> Fixes: 6a3608eae6d33 ("drm: bridge: cdns-mhdp8546: Enable HDCP")
> Signed-off-by: Harikrishna Shenoy <h-shenoy@ti.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
--
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
next prev parent reply other threads:[~2026-03-09 17:55 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-09 12:03 [PATCH v10 0/6] MHDP8546 fixes related to DRM_BRIDGE_ATTACH_NO_CONNECTOR usecase Harikrishna Shenoy
2025-12-09 12:03 ` [PATCH v10 1/6] drm/bridge: cadence: cdns-mhdp8546-core: Set the mhdp connector earlier in atomic_enable() Harikrishna Shenoy
2025-12-22 12:54 ` Tomi Valkeinen
2026-03-09 17:55 ` Luca Ceresoli
2025-12-09 12:03 ` [PATCH v10 2/6] drm/bridge: cadence: cdns-mhdp8546-core: Add mode_valid hook to drm_bridge_funcs Harikrishna Shenoy
2026-03-09 17:55 ` Luca Ceresoli
2025-12-09 12:03 ` [PATCH v10 3/6] drm/bridge: cadence: cdns-mhdp8546-core: Handle HDCP state in bridge atomic check Harikrishna Shenoy
2025-12-22 12:56 ` Tomi Valkeinen
2026-03-09 17:55 ` Luca Ceresoli [this message]
2025-12-09 12:03 ` [PATCH v10 4/6] drm/bridge: cadence: cdns-mhdp8546-core: Remove legacy support for connector initialisation in bridge Harikrishna Shenoy
2025-12-22 12:57 ` Tomi Valkeinen
2026-03-09 17:55 ` Luca Ceresoli
2025-12-09 12:03 ` [PATCH v10 5/6] cadence: cdns-mhdp8546*: Change drm_connector from structure to pointer Harikrishna Shenoy
2025-12-22 13:02 ` Tomi Valkeinen
2026-03-09 17:55 ` Luca Ceresoli
2025-12-09 12:03 ` [PATCH v10 6/6] drm/bridge: cadence: cdns-mhdp8546-core: Reduce log level for DPCD read/write Harikrishna Shenoy
2026-03-09 17:55 ` Luca Ceresoli
2026-02-18 9:34 ` [PATCH v10 0/6] MHDP8546 fixes related to DRM_BRIDGE_ATTACH_NO_CONNECTOR usecase Beleswar Prasad Padhi
2026-03-09 18:08 ` Luca Ceresoli
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