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The HDMI 2.1 specification introduced the Fixed Rate Link (FRL) mode, aiming to replace the older Transition-Minimized Differential Signaling (TMDS) mode used in previous HDMI versions to support much higher bandwidths (up to 48 Gbps) for modern video and audio formats. FRL has been designed to support ultra high resolution formats at high refresh rates like 8K@60Hz or 4K@120Hz, and eliminates the need for dynamic bandwidth adjustments, which reduces latency. It operates with 3 or 4 lanes at different link rates: 3Gbps, 6Gbps, 8Gbps, 10Gbps or 12Gbps. Add support for configuring the FRL mode for HDMI PHYs. Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> Link: https://patch.msgid.link/20260113-phy-hdptx-frl-v6-1-8d5f97419c0b@collabora.com Signed-off-by: Vinod Koul <vkoul@kernel.org> |
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