drm/bridge: cadence: cdns-mhdp8546-core: Handle HDCP state in bridge atomic check

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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: 6a3608eae6 ("drm: bridge: cdns-mhdp8546: Enable HDCP")
Signed-off-by: Harikrishna Shenoy <h-shenoy@ti.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patch.msgid.link/20251209120332.3559893-4-h-shenoy@ti.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>

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Harikrishna Shenoy 2025-12-09 17:33:29 +05:30 • committed by Luca Ceresoli

parent 6dbff34016

commit 4a8edd6584

1 changed files with 23 additions and 0 deletions

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drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c

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