These patches improve GENI UART support during init by implementing the parent property read directly rather than via a misc device, and fixing the error path when the clock can't be found.
In my testing, the first few lines of UART output on platforms with non-default oversampling values is often garbled, this is because the parent misc device hasn't yet probed and so the clock rate is incorrect.
It is simpler to just access the geni-se parent device directly rather than via a misc device, especially as we only need to read a single register for now.
Additionally, this series makes it a hard requirement that the GENI UART node is a child of the generic geni-se controller. This allows us to print a useful error if DTS is incorrect rather than attempting to continue without reading the oversampling value could result in a lot of confusion during platform bringup.
--- Caleb Connolly (2): serial: msm-geni: don't rely on parent misc device serial: msm-geni: handle devm_clk_get() errors
drivers/misc/Kconfig | 7 ------- drivers/misc/Makefile | 1 - drivers/misc/qcom-geni-se.c | 41 ---------------------------------------- drivers/serial/Kconfig | 2 -- drivers/serial/serial_msm_geni.c | 40 ++++++++++++++++++++++++++------------- 5 files changed, 27 insertions(+), 64 deletions(-) --- base-commit: f3fc930d775ef5c1b7b74b1427491a17680e66ae
// Caleb (they/them)