On 8/29/2024 2:43 PM, Dmitry Baryshkov wrote: > On Tue, Aug 27, 2024 at 03:08:03PM GMT, Bryan O'Donoghue wrote: >> On 27/08/2024 11:05, Dikshita Agarwal via B4 Relay wrote: >>> +static const struct of_device_id iris_dt_match[] = { >>> + { .compatible = "qcom,sm8550-iris", }, >>> + { .compatible = "qcom,sm8250-venus", }, >>> + { }, >>> +}; >>> +MODULE_DEVICE_TABLE(of, iris_dt_match); >> >> The enabling patch for the compat strings should come last - if its first >> then the time between the compat add and the last patch is a dead zone where >> things are bound to break on a booting board. > > But then it's impossible to test the driver in the interim state. > Moreover enabling it at the end only makes it hard to follow platform > data changes. What about adding sm8550 at this point and adding sm8250 > at the end? Or enabling qcom,sm8550-iris and the fake qcom,sm8250-iris > now (and clearly documenting it as fake) and as the last patch change it > to qcom,sm8250-venus. Sure, we will add qcom,sm8250-iris at this point so that it enables the testing of the driver, and will add one patch at the last to add qcom,sm8250-venus. Thanks, Dikshita >