hi Shawn and all whom this concerns, 3 weeks ago I sent this as RFC that didn't yield feedback, see below :) Here's the same patches as a proper patchset ready to apply. The first patch adds a shared "r3.dtsi" and is only refactoring. Patch 2 that describes the power supplies on the Librem 5 board as regulators. Patch 3 and 4 should be straight forward camera descriptions according to the drivers. thank you, martin revision history ---------------- RFC v1: https://lore.kernel.org/phone-devel/20211015083506.4182875-1-martin.kepplinger@xxxxxxx/ and more specifically thoughts on patch 2: https://lore.kernel.org/phone-devel/20211015083506.4182875-3-martin.kepplinger@xxxxxxx/ Martin Kepplinger (4): arm64: dts: split out a shared imx8mq-librem5-r3.dtsi description arm64: dts: imx8mq-librem5: describe power supply for cameras arm64: dts: imx8mq-librem5: describe the selfie cam arm64: dts: imx8mq-librem5-r3.dtsi: describe selfie cam XSHUTDOWN pin .../boot/dts/freescale/imx8mq-librem5-r3.dts | 25 +---- .../boot/dts/freescale/imx8mq-librem5-r3.dtsi | 45 +++++++++ .../boot/dts/freescale/imx8mq-librem5-r4.dts | 16 +--- .../boot/dts/freescale/imx8mq-librem5.dtsi | 96 ++++++++++++++++++- 4 files changed, 144 insertions(+), 38 deletions(-) create mode 100644 arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dtsi -- 2.30.2