mbox series

[v2,0/6] drm/sun4i: Support LVDS on D1s/T113 combo D-PHY

Message ID 20251116131853.440863-1-kuba@szczodrzynski.pl (mailing list archive)
Headers
Series drm/sun4i: Support LVDS on D1s/T113 combo D-PHY |

Message

Kuba Szczodrzyński Nov. 16, 2025, 1:18 p.m. UTC 
Some Allwinner chips (notably the D1s/T113 and the A100) have a "combo
MIPI DSI D-PHY" which is required when using single-link LVDS0. The same
PD0..PD9 pins are used for either DSI or LVDS.

Other than having to use the combo D-PHY, LVDS output is configured in
the same way as on older chips.

This series enables the sun6i MIPI D-PHY to also work in LVDS mode. It
is then configured by the LCD TCON, which allows connecting a
single-link LVDS display panel.

Changes in v2:
- Applied code formatting changes from review comments
- Changed "dphy" to "combo-phy"
- Made the LVDS setup/teardown functions abort early in case of error
  (adding a proper return value would require changes in several levels
   of caller functions; perhaps could be done in a separate patch)
- Added the PHY properties to DT bindings
- Renamed lvds0_pins to lcd_lvds0_pins
- Rebased on top of drm/misc/kernel/for-linux-next

Kuba Szczodrzyński (6):
  phy: allwinner: phy-sun6i-mipi-dphy: Support LVDS in combo D-PHY
  drm/sun4i: Support LVDS using MIPI DSI combo D-PHY
  drm/sun4i: Enable LVDS output on sun20i D1s/T113
  dt-bindings: display: sun4i: Add D1s/T113 combo D-PHY bindings
  riscv: dts: allwinner: d1s-t113: Add D-PHY to TCON LCD0
  riscv: dts: allwinner: d1s-t113: Add LVDS0 pins

 .../display/allwinner,sun4i-a10-tcon.yaml     |  6 ++
 .../boot/dts/allwinner/sunxi-d1s-t113.dtsi    | 11 +++
 drivers/gpu/drm/sun4i/sun4i_tcon.c            | 50 +++++++++++++
 drivers/gpu/drm/sun4i/sun4i_tcon.h            |  6 ++
 drivers/phy/allwinner/phy-sun6i-mipi-dphy.c   | 70 ++++++++++++++++++-
 5 files changed, 141 insertions(+), 2 deletions(-)