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

Rajendra Nayak
2020-06-15T12:03:47Z

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(-)

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