On 8/13/2019 5:33 AM, MyungJoo Ham wrote: >> Add initial support for dynamic frequency switching on pieces of the imx >> interconnect fabric. >> >> All this driver actually does is set a clk rate based on an opp table. >> >> +config ARM_IMX_DEVFREQ >> + tristate "i.MX DEVFREQ Driver" >> + depends on ARCH_MXC || COMPILE_TEST >> + select DEVFREQ_GOV_PASSIVE >> + select DEVFREQ_GOV_SIMPLE_ONDEMAND >> + select DEVFREQ_GOV_USERSPACE >> + select PM_OPP > > Does it support ALL ARCH_MXC SoCs? Only imx8m currently but out of tree we support bus+dram frequency switching for ~10 imx6/7 SOCs, all other than imx7ulp. When imx8 was upstreamed as the first 64-bit imx chip the arm64 maintainers told us to drop stuff like ARCH_FSL_IMX8MM so there is no per-soc kconfig more specific than "ARCH_MXC". I guess we could make it depend on (ARCH_MXC && ARM64) but the ARM64 would eventually be dropped anyway. -- Regards, Leonard
