linux-kernel - [Patch v1 0/3] Tegra234 cpufreq driver support

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Date:   Wed, 16 Mar 2022 19:28:28 +0530
From:   Sumit Gupta <sumitg@...dia.com>
To:     <rafael@...nel.org>, <viresh.kumar@...aro.org>,
        <robh+dt@...nel.org>, <krzk+dt@...nel.org>, <treding@...dia.com>,
        <jonathanh@...dia.com>, <linux-pm@...r.kernel.org>,
        <linux-tegra@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     <ksitaraman@...dia.com>, <sanjayc@...dia.com>, <bbasu@...dia.com>,
        <sumitg@...dia.com>
Subject: [Patch v1 0/3] Tegra234 cpufreq driver support

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.

Sumit Gupta (3):
  cpufreq: tegra194: add soc data to support multiple soc
  arm64: tegra: add node for tegra234 cpufreq
  cpufreq: tegra194: Add support for Tegra234

 arch/arm64/boot/dts/nvidia/tegra234.dtsi |   7 +
 drivers/cpufreq/tegra194-cpufreq.c       | 246 +++++++++++++++++++----
 2 files changed, 216 insertions(+), 37 deletions(-)

-- 
2.17.1