The Lenovo Thinkpad T14s Gen6 comes in different SKUs when it comes to panels. The only difference that is important is whether it is an OLED or an LCD. The way that backlight is handled in devicetree between OLED and LCD forces the need of two separate DTBs. So create a common T14s dtsi that describes everything except the backlight handling, by renaming the existent dts to dtsi. Then make the legacy dts the LCD version, while adding a prepended oled dts. Both include the generic T14s dtsi. For the OLED version, I do not have HW to test it on, so OLED specific bits will come at a later stage. Still, add the OLED dts in order to set the stage for it. Had to format it using "git format-patch" since b4 doesn't currently support -B when formatting the patch, and the renaming of the dts into dtsi (plus the panel properties being dropped) would've not been visible enough for reviewers. Changes in v2: - rebased on next-20250307 - Dropped the RFC, as it seems to be agreed upon already - Added dt-bindings patch to document the new oled and lcd compatibles - Added panel variant compatible strings to each dts and included the the panel type into model string as well - Changed backlight PWM period to 4266537 to match exact period the PMIC can do. - Link to v1 (RFC): https://lore.kernel.org/r/20250306090503.724390-1-abel.vesa@xxxxxxxxxx/ Abel Vesa (3): dt-bindings: arm: qcom: Document Lenovo ThinkPad T14s Gen 6 LCD and OLED arm64: dts: qcom: x1e78100-t14s: Add LCD variant with backlight support arm64: dts: qcom: x1e78100-t14s: Add OLED variant .../devicetree/bindings/arm/qcom.yaml | 4 +- arch/arm64/boot/dts/qcom/Makefile | 1 + .../x1e78100-lenovo-thinkpad-t14s-oled.dts | 12 + .../qcom/x1e78100-lenovo-thinkpad-t14s.dts | 1194 +---------------- ...dts => x1e78100-lenovo-thinkpad-t14s.dtsi} | 6 +- 5 files changed, 77 insertions(+), 1140 deletions(-) create mode 100644 arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s-oled.dts rewrite arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts (98%) copy arch/arm64/boot/dts/qcom/{x1e78100-lenovo-thinkpad-t14s.dts => x1e78100-lenovo-thinkpad-t14s.dtsi} (99%) -- 2.34.1
