[PATCH v7 0/8] Couple improvements for Tegra clk driver

From: Dmitry Osipenko
Date: Mon May 10 2021 - 19:17:54 EST


This series fixes couple minor standalone problems of the Tegra clk
driver and adds new features.

Changelog:

v7: - Added r-b from Rob Herring to the schema patch which he gave to v6.

- Dropped the MAINTAINERS-update patch. Previously Peter said on IRC
that he doesn't have time on the tegra-clk driver anymore and approved
the patch, but then he refused to ack the v6 patch, saying that he
is not reading mailing lists. So I don't feel comfortable with that
patch. Peter could send it by himself if will be necessary.

- Added these new patches:

clk: tegra: cclk: Handle thermal DIV2 CPU frequency throttling
clk: tegra: Mark external clocks as not having reset control

I sent out the new Tegra30 thermal sensor driver and now CPU clock
could be throttled by the sensor hardware [1]. The first patch adds
support for reporting of the throttled frequency properly.

[1] https://patchwork.ozlabs.org/project/linux-tegra/list/?series=243126

During of debugging sound issues of Asus Transformer devices, I noticed
that the external clocks are missing the no-reset flag. The second
patch fixes it.

v6: - Made a small improvement and corrected a typo in patch
"Fix refcounting of gate clocks" that were spotted by
Michał Mirosław.

v5: - Corrected example in the schema binding to silence dt_binding_check
warning.

- The Tegra124 binding is factored out into standalone binding since
Tegra124 has properties that aren't used by other SoCs and I couldn't
figure out how to make them conditional in schema.

v4: - Added new patch that converts DT bindings to schema.

v3: - Added acks from Thierry Reding that he gave to v2.

- Added new patch "clk: tegra: Don't allow zero clock rate for PLLs".

v2: - Added these new patches:

clk: tegra: Halve SCLK rate on Tegra20
MAINTAINERS: Hand Tegra clk driver to Jon and Thierry

v1: - Collected clk patches into a single series.

Dmitry Osipenko (8):
clk: tegra30: Use 300MHz for video decoder by default
clk: tegra: Fix refcounting of gate clocks
clk: tegra: Ensure that PLLU configuration is applied properly
clk: tegra: Halve SCLK rate on Tegra20
clk: tegra: Don't allow zero clock rate for PLLs
clk: tegra: cclk: Handle thermal DIV2 CPU frequency throttling
clk: tegra: Mark external clocks as not having reset control
dt-bindings: clock: tegra: Convert to schema

.../bindings/clock/nvidia,tegra114-car.txt | 63 ----------
.../bindings/clock/nvidia,tegra124-car.txt | 107 ----------------
.../bindings/clock/nvidia,tegra124-car.yaml | 115 ++++++++++++++++++
.../bindings/clock/nvidia,tegra20-car.txt | 63 ----------
.../bindings/clock/nvidia,tegra20-car.yaml | 69 +++++++++++
.../bindings/clock/nvidia,tegra210-car.txt | 56 ---------
.../bindings/clock/nvidia,tegra30-car.txt | 63 ----------
drivers/clk/tegra/clk-periph-gate.c | 72 +++++++----
drivers/clk/tegra/clk-periph.c | 11 ++
drivers/clk/tegra/clk-pll.c | 12 +-
drivers/clk/tegra/clk-tegra-periph.c | 6 +-
drivers/clk/tegra/clk-tegra-super-cclk.c | 16 ++-
drivers/clk/tegra/clk-tegra20.c | 6 +-
drivers/clk/tegra/clk-tegra30.c | 4 +-
14 files changed, 271 insertions(+), 392 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra114-car.txt
delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra124-car.txt
create mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra124-car.yaml
delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt
create mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra20-car.yaml
delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra210-car.txt
delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt

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2.30.2