On 01/02/2023 10:02, Jun Nie wrote:
Cache Coherent Interconnect (CCI) is used by some Qualcomm SoCs. This driver is introduced so that its freqency can be adjusted. And regulator associated with opp table can be also adjusted accordingly which is shared with cpu cluster. Signed-off-by: Jun Nie <jun.nie@xxxxxxxxxx> --- drivers/devfreq/Kconfig | 9 +++ drivers/devfreq/Makefile | 1 + drivers/devfreq/qcom-cci.c | 162 +++++++++++++++++++++++++++++++++++++ 3 files changed, 172 insertions(+) create mode 100644 drivers/devfreq/qcom-cci.c
Could you please describe in some additional details what are you trying to achieve? Should the CCI frequency be scaled manually or does it follow the cluster frequency? Do clusters vote on the CCI frequency?
I'm inclined to ask if it is possible to shift this to the cpufreq OPP tables?
-- With best wishes Dmitry
