[Patch v3 0/4] Tegra234 cpufreq driver support

From: Sumit Gupta
Date: Mon Apr 04 2022 - 08:17:30 EST


This patchset adds driver support for Tegra234 cpufreq.
Also, added soc data and ops to support multiple SoC's and variants
which have similar logic to {get|set} cpu frequency as Tegra194 in
the same driver.
>From cpufreq point, main difference between Tegra194 and Tegra234 are:
1) Tegra234 uses MMIO for frequency requests and not sysreg like T194.
2) MPIDR affinity info in Tegra234 is different from Tegra194.
3) Register bits of pllp_clk_count and core_clk_count are swapped.
So, added ops hooks for Tegra234.

---
v2 -> v3:
- used CPU COMPLEX CLUSTER name in binding document.
- reordered the patches.

v1 -> v2:
- added nvidia,tegra-ccplex-cluster.yaml binding doc
- changed compatible check to 'soc->actmon_cntr_base' field of soc data

Sumit Gupta (4):
dt-bindings: Document Tegra CCPLEX Cluster
cpufreq: tegra194: add soc data to support multiple soc
cpufreq: tegra194: Add support for Tegra234
arm64: tegra: add node for tegra234 cpufreq

.../tegra/nvidia,tegra-ccplex-cluster.yaml | 52 ++++
arch/arm64/boot/dts/nvidia/tegra234.dtsi | 7 +
drivers/cpufreq/tegra194-cpufreq.c | 246 +++++++++++++++---
3 files changed, 268 insertions(+), 37 deletions(-)
create mode 100644 Documentation/devicetree/bindings/arm/tegra/nvidia,tegra-ccplex-cluster.yaml

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2.17.1