drm/bridge: dw-hdmi-qp: Add support for missing HPD

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Add support for the dw-hdmi-qp driver to handle devices with missing
HPD pins.

Since in this situation we are now polling for the EDID data via i2c
change the error message to a rate limited debug message when we are
unable to complete an i2c read, as a disconnected device would
otherwise fill dmesg with i2c read errors.

Reviewed-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20251119225526.70588-3-macroalpha82@gmail.com

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Chris Morgan 2025-11-19 16:55:25 -06:00 • committed by Heiko Stuebner

parent db04f0d47d

commit bafb6863dd

1 changed files with 30 additions and 4 deletions

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drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c

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