AngeloGioacchino Del Regno 486a70ef84 phy: mediatek: phy-mtk-hdmi-mt8195: Fix TMDS clk bit ratio setting ...

The comment in the mtk_phy_tmds_clk_ratio() function clearly and
correctly explains that the TMDS ratio has to be 1/10 for data
rates under 3.4Gbps, and 1/40 over that.

Unfortunately though, the TXC_DIV register setting was wrong, as
in value 3 means to divide by 8 and, in order to achieve the in
spec 1/40 (tmds) data rate, this has to divide by 4 instead!

Add definitions for the TXC_DIV register values clearly explaining
the meanings (DIV2, DIV4, DIV8), and program the correct, DIV 4,
value to the register in mtk_phy_tmds_clk_ratio().

This fixes out of spec clocking and, with this change, SoCs using
the MT8195 class HDMI PHYs can now successfully be configured to
output 3840x2160@60Hz over HDMI.

Fixes: 45810d486b ("phy: mediatek: add support for phy-mtk-hdmi-mt8195")
Reviewed-by: Manivannan Sadhasivam <[email protected]>
Signed-off-by: AngeloGioacchino Del Regno <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Vinod Koul <[email protected]>

2026-09-13 16:05:23 +05:30

..

Kconfig

phy: mediatek: phy-mtk-hdmi: add regulator dependency

2024-12-24 20:38:53 +05:30

Makefile

phy: mediatek: Add support for MT8196 MIPI DSI PHY

2026-07-20 16:42:15 +05:30

phy-mtk-dp.c

…

phy-mtk-hdmi-mt2701.c

phy: mediatek: phy-mtk-hdmi-mt2701: use clk_determine_rate_noop()

2026-06-29 17:53:16 -04:00

phy-mtk-hdmi-mt8173.c

phy: mediatek: phy-mtk-hdmi-mt8173: convert from round_rate() to determine_rate()

2025-12-24 12:53:35 +05:30

phy-mtk-hdmi-mt8195.c

phy: mediatek: phy-mtk-hdmi-mt8195: Fix TMDS clk bit ratio setting

2026-09-13 16:05:23 +05:30

phy-mtk-hdmi-mt8195.h

phy: mediatek: phy-mtk-hdmi-mt8195: Fix TMDS clk bit ratio setting

2026-09-13 16:05:23 +05:30

phy-mtk-hdmi.c

phy: mediatek: phy-mtk-hdmi: Register PHY provided regulator

2024-12-04 19:55:33 +05:30

phy-mtk-hdmi.h

phy: mediatek: phy-mtk-hdmi: Register PHY provided regulator

2024-12-04 19:55:33 +05:30

phy-mtk-io.h

…

phy-mtk-mipi-csi-0-5-rx-reg.h

…

phy-mtk-mipi-csi-0-5.c

…

phy-mtk-mipi-dsi-mt8173.c

phy: mediatek: phy-mtk-mipi-dsi-mt8173: convert from round_rate() to determine_rate()

2025-12-24 12:53:35 +05:30

phy-mtk-mipi-dsi-mt8183.c

phy: mediatek: phy-mtk-mipi-dsi-mt8183: convert from round_rate() to determine_rate()

2025-12-24 12:53:35 +05:30

phy-mtk-mipi-dsi-mt8196.c

phy: mediatek: Add support for MT8196 MIPI DSI PHY

2026-07-20 16:42:15 +05:30

phy-mtk-mipi-dsi.c

phy: mediatek: Add support for MT8196 MIPI DSI PHY

2026-07-20 16:42:15 +05:30

phy-mtk-mipi-dsi.h

phy: mediatek: Add support for MT8196 MIPI DSI PHY

2026-07-20 16:42:15 +05:30

phy-mtk-pcie.c

…

phy-mtk-tphy.c

phy: phy-mtk-tphy: Update names and format of kernel-doc comments

2026-02-27 08:05:57 +05:30

phy-mtk-ufs.c

Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files)

2026-07-03 07:38:17 +02:00

phy-mtk-xfi-tphy.c

phy: adjust function name reference

2026-01-01 15:55:23 +05:30

phy-mtk-xsphy.c

phy: mediatek: xsphy: reduce main allocation

2026-05-14 21:27:02 +05:30