Re: [PATCH v6 0/6] DVFS for IO devices on sdm845 and sc7180

Rajendra Nayak
2020-06-18T04:47:26Z

Hey Matthias, thanks for summarizing this.

On 6/18/2020 3:45 AM, Matthias Kaehlcke wrote:
> What is the plan for landing these, it seems not all must/should
> go through the QCOM tree.
>
> My guesses:
>
> tty: serial: qcom_geni_serial: Use OPP API to set clk/perf state
> spi: spi-geni-qcom: Use OPP API to set clk/perf state
> QCOM tree due to shared dependency on change in include/linux/qcom-geni-se.h

That's correct, Bjorn/Andy, can these be pulled in now for 5.9?
They have acks from Greg for serial and Mark for the spi patch.

> drm/msm/dpu: Use OPP API to set clk/perf state
> drm/msm: dsi: Use OPP API to set clk/perf state
> drm/msm tree

Correct, the dsi patch is still not reviewed by Rob, so once that's done,
I am guessing Rob would pull both of these.

>
> media: venus: core: Add support for opp tables/perf voting
> venus tree

correct, this is pending review/ack from Stan.

>
> spi: spi-qcom-qspi: Use OPP API to set clk/perf state
> SPI tree

Right, Mark has this acked, I am guessing he will pull this in at
some point.

thanks,
Rajendra

>
>
> Does this make sense or are there any dependencies I'm missing?
>
> Thanks
>
> Matthias
>
> On Mon, Jun 15, 2020 at 05:32:38PM +0530, Rajendra Nayak wrote:
>> Changes in v6:
>> 1. rebased on 5.8-rc1, no functional change.
>>
>> Changes in v5:
>> 1. Opp cleanup path fixed up across drivers
>>
>> Changes in v4:
>> 1. Fixed all review feedback on v3
>> 2. Dropped the dts patches, will post as a seperate series once
>> driver changes are reviewed and merged.
>> The driver changes without DT updates to include OPP tables will
>> have zero functional change.
>> 3. Dropped the mmc/sdhc patch, which is a standalone patch. will
>> repost if needed seperately.
>>
>> Changes in v3:
>> 1. Added better error handling for dev_pm_opp_of_add_table()
>> 2. Some minor changes and fixes in 'PATCH 12/17' as compared to v2
>> 3. Dropped the mmc patch picked up by Ulf [2]
>>
>> Changes in v2:
>> 1. Added error handling for dev_pm_opp_set_clkname()
>> and dev_pm_opp_of_add_table()
>> 2. Used dev_pm_opp_put_clkname() in the cleanup path
>> 3. Dropped the OPP patch pulled in by Viresh [1]
>> 4. Dropped the UFS patches since they had some major rework
>> needed because of changes that were merged in the merge window
>> and I don't have a UFS device currently to validate the changes.
>>
>> We have had support added in the OPP core for a while now to support
>> DVFS for IO devices, and this series uses that infrastructure to
>> add DVFS support for various IO devices in sdm845 and sc7180 SoCs.
>>
>> [1] https://lkml.org/lkml/2020/4/14/98
>> [2] https://lore.kernel.org/patchwork/patch/1226381/
>>
>> Rajendra Nayak (6):
>> tty: serial: qcom_geni_serial: Use OPP API to set clk/perf state
>> spi: spi-geni-qcom: Use OPP API to set clk/perf state
>> drm/msm/dpu: Use OPP API to set clk/perf state
>> drm/msm: dsi: Use OPP API to set clk/perf state
>> media: venus: core: Add support for opp tables/perf voting
>> spi: spi-qcom-qspi: Use OPP API to set clk/perf state
>>
>> drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c | 3 +-
>> drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 26 +++++++++++-
>> drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 4 ++
>> drivers/gpu/drm/msm/dsi/dsi.h | 2 +
>> drivers/gpu/drm/msm/dsi/dsi_cfg.c | 4 +-
>> drivers/gpu/drm/msm/dsi/dsi_host.c | 58 ++++++++++++++++++++++++++
>> drivers/media/platform/qcom/venus/core.c | 43 ++++++++++++++++---
>> drivers/media/platform/qcom/venus/core.h | 5 +++
>> drivers/media/platform/qcom/venus/pm_helpers.c | 54 ++++++++++++++++++++++--
>> drivers/spi/spi-geni-qcom.c | 26 ++++++++++--
>> drivers/spi/spi-qcom-qspi.c | 28 ++++++++++++-
>> drivers/tty/serial/qcom_geni_serial.c | 34 ++++++++++++---
>> include/linux/qcom-geni-se.h | 4 ++
>> 13 files changed, 268 insertions(+), 23 deletions(-)
>>
>> --
>> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
>> of Code Aurora Forum, hosted by The Linux Foundation
>>

--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation