On 31/01/2023 00:30, Stephen Boyd wrote: > Quoting Krzysztof Kozlowski (2023-01-26 01:31:55) >> On 25/01/2023 21:44, Stephen Boyd wrote: >>> Quoting Krzysztof Kozlowski (2023-01-23 01:49:25) >>>> There is no point to allow selecting pin-controller drivers for Qualcomm >>> >>> pin controllers? >> >> Copy-paste, I'll fix it. >> >>> >>>> ARMv7 SoCs when building ARM64 kernel, and vice versa. This makes >>>> kernel configuration more difficult as many do not remember the Qualcomm >>>> SoCs model names/numbers. There won't be a single image for ARMv7 and >>>> ARMv8/9 SoCs, so no features/options are lost. >>> >>> Are the drivers used in arm32 emulation mode on these SoCs? I recall >>> there are some SoCs they run with the arm architecture. >> >> I did not add it to the few SoCs which have upstream DTS in ARM and >> ARM64. I added only to the ones which are in one specific folder. Also >> my patch does not affect defconfigs (qcom_defconfig and arm64/defconfig). > > Cool, thanks for checking. Is it possible to take a dtb from arm64 dts > directory and boot it on an armv8 CPU running in 32-bit mode? Just > wondering if even having the dts file exist in the arm64 architecture > really matters here. If DTSI (and/or board DTS) is in arm64, you still need DTS or a link in arm directory. If such one is added, then the restrictions here can be removed. Have in mind that I did the same already for pinctrl. Best regards, Krzysztof
