In order to get logs through the SBU pins in Google Pixel devices, it is
necessary to add support to the devicetree, and enable the corresponding
UART. With this code and an USB-Cereal board, I was able to get full kernel
logs through serial.
This series depends on the patch adding a sdm670-google-common dtsi for
dealing with both the Pixel 3a and Pixel 3a XL:
https://lore.kernel.org/all/20260310002606.16413-5-mailingradian@gmail.com/
This is my first patch sent to the kernel mailing list, so apologies ahead
if I missed something in the documentation.
Signed-off-by: Pablo Correa Gómez <pabloyoyoista@postmarketos.org>
---
Changes in v2:
- Fix typo in (3/3) commit message
- Link to v1: https://patch.msgid.link/20260328-pabloyoyoista-debug-uart-on-rdacayan-next-v1-0-0babf584acdb@postmarketos.org
---
Pablo Correa Gómez (3):
arm64: dts: qcom: sdm670: add default uart pinctrl nodes
arm64: dts: qcom: sdm670: add debug uart soc node
arm64: dts: qcom: sdm670-google-common: enable debug uart
arch/arm64/boot/dts/qcom/sdm670-google-common.dtsi | 18 +-
arch/arm64/boot/dts/qcom/sdm670.dtsi | 207 +++++++++++++++++++++
2 files changed, 224 insertions(+), 1 deletion(-)
---
base-commit: 54f966f63b379d0c62bb044b7903319776443a4a
change-id: 20260328-pabloyoyoista-debug-uart-on-rdacayan-next-69274358cef4
prerequisite-message-id: <20260217002738.133534-1-mailingradian@gmail.com>
prerequisite-patch-id: aeaea0c438bff770d0c4c33d937db5706d642daf
prerequisite-patch-id: 11ce654ef61d48fdebf1c4e1d9d184cfb7bcaa59
prerequisite-patch-id: c6203c8a71fe103b983b6ba5fc99a22948118fb4
prerequisite-patch-id: f9ff17c7e4b4396850f51e45249d2f6e35df3725
prerequisite-patch-id: faab09f9fe421a6358e5512c6050dd70d3271273
prerequisite-patch-id: adb88e3ddcbe33db1e3fc60ea4cb195dac18a8b4
prerequisite-patch-id: 0c8f7fc0835cdda72529fcfa7b654bb97109fae4
prerequisite-message-id: <20260310002606.16413-1-mailingradian@gmail.com>
prerequisite-patch-id: eb2d2be6edae3d09973b49f3ff6c48fa0845e7e0
prerequisite-patch-id: e6d9e56eaeceddee68d56e2ec8ac20997bff52c9
prerequisite-patch-id: d5e2975adf904bf656827100df7989218ac9e963
prerequisite-patch-id: 04478351b1304dfe1357d176c8d0c235346ca40f
prerequisite-patch-id: a54db56ccdf1491c46158a84ac1cae70f74bb36c
Best regards,
--
Pablo Correa Gómez <pabloyoyoista@postmarketos.org>