[PATCH v2 00/14] NVIDIA Tegra memory and power management changes for 5.14

Dmitry Osipenko
2021-05-23T23:13:53Z

This series:

1. Adds CPU/core voltage bump before system is rebooted.
2. Adds new devm_tegra_core_dev_init_opp_table() helper and switches
Tegra memory drivers to use it.
3. Adds compile-testing support to the Tegra memory drivers.
4. Adds Tegra SoC core power domain support.

Changelog:

v2: - Added more clk stubs that should fix build error reported by the
kernel bot to v1 for the T210 memory driver.

- Added r-b from Krzysztof Kozlowski to the memory patches.

- Added back voltage restore on detaching of coupled regulators to
the T20 regulator coupler which previously got missed by accident.

- Added new patch:

regulator: core: Detach coupled regulator before coupling count is dropped

It fixes skipped voltage balancing on detaching of regulators which I
happened to notice due to the recent regression of the MAX77620 driver
that made driver to re-probe and detach coupled regulators.

v1: - Merged previous patches into this single series.

- Added ack from Rob Herring to the core domain DT binding patch.

- Implemented suggestions that were given by Krzysztof Kozlowski:

- Factored out soc_is_tegra() stub into standalone patch.
- Updated tags of the "Fix compilation warnings on 64bit platforms"
patch, added reported-by from lkp robot and removed suggested-by
from Nathan Chancellor.
- Switched to use use BIT() macro.

- Added r-b from Krzysztof Kozlowski to "Enable compile testing for
all drivers" patch.

- Added r-b from Nathan Chancellor.

- Dropped voltage floor/ceiling from devm_tegra_core_dev_init_opp_table()
since only memory drivers now need to initialize voltage vote and they
don't need floor/ceil. This was suggested by Viresh Kumar.

Dmitry Osipenko (14):
regulator: core: Add regulator_sync_voltage_rdev()
regulator: core: Detach coupled regulator before coupling count is
dropped
soc/tegra: regulators: Bump voltages on system reboot
soc/tegra: Add stub for soc_is_tegra()
soc/tegra: Add devm_tegra_core_dev_init_opp_table()
soc/tegra: fuse: Add stubs needed for compile-testing
clk: tegra: Add stubs needed for compile-testing
memory: tegra: Fix compilation warnings on 64bit platforms
memory: tegra: Enable compile testing for all drivers
memory: tegra20-emc: Use devm_tegra_core_dev_init_opp_table()
memory: tegra30-emc: Use devm_tegra_core_dev_init_opp_table()
dt-bindings: soc: tegra-pmc: Document core power domain
soc/tegra: pmc: Add core power domain
soc/tegra: regulators: Support core domain state syncing

.../arm/tegra/nvidia,tegra20-pmc.yaml | 35 +++++
drivers/memory/tegra/Kconfig | 16 +-
drivers/memory/tegra/tegra124-emc.c | 4 +-
drivers/memory/tegra/tegra20-emc.c | 48 +-----
drivers/memory/tegra/tegra30-emc.c | 52 +------
drivers/regulator/core.c | 37 ++++-
drivers/soc/tegra/Kconfig | 14 ++
drivers/soc/tegra/common.c | 97 ++++++++++++
drivers/soc/tegra/pmc.c | 143 ++++++++++++++++++
drivers/soc/tegra/regulators-tegra20.c | 97 +++++++++++-
drivers/soc/tegra/regulators-tegra30.c | 96 +++++++++++-
include/linux/clk/tegra.h | 82 +++++++---
include/linux/regulator/driver.h | 1 +
include/soc/tegra/common.h | 38 +++++
include/soc/tegra/fuse.h | 20 ++-
15 files changed, 650 insertions(+), 130 deletions(-)

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2.30.2