Re: [PATCH v3 2/2] PM / devfreq: mediatek: Introduce MediaTek CCI devfreq driver

From: Chanwoo Choi
Date: Fri May 06 2022 - 14:57:46 EST


Hi Johnson,


On 22. 4. 25. 21:55, Johnson Wang wrote:
We introduce a devfreq driver for the MediaTek Cache Coherent Interconnect
(CCI) used by some MediaTek SoCs.

In this driver, we use the passive devfreq driver to get target frequencies
and adjust voltages accordingly. In MT8183 and MT8186, the MediaTek CCI
is supplied by the same regulators with the little core CPUs.

Signed-off-by: Johnson Wang <johnson.wang@xxxxxxxxxxxx>
Signed-off-by: Jia-Wei Chang <jia-wei.chang@xxxxxxxxxxxx>
---
This patch depends on "devfreq-testing"[1].
[1]https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git/log/?h=devfreq-testing
---
drivers/devfreq/Kconfig | 10 +
drivers/devfreq/Makefile | 1 +
drivers/devfreq/mtk-cci-devfreq.c | 474 ++++++++++++++++++++++++++++++
3 files changed, 485 insertions(+)
create mode 100644 drivers/devfreq/mtk-cci-devfreq.c
Acked-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>

I updated the passive governor on devfreq-testing[1] branch
[1] https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git/log/?h=devfreq-testing

Could you please test your patches based on devfreq-testing[1] branch?


--
Best Regards,
Samsung Electronics
Chanwoo Choi