[PATCH v6 0/2] Enable cpufreq for IPQ5332 & IPQ9574
From: Varadarajan Narayanan
Date: Tue Oct 31 2023 - 03:12:50 EST
This patch series aims to enable cpufreq for IPQ5332 and IPQ9574.
For IPQ5332, a minor enhancement to Stromer Plus ops and a safe
source switch is needed before cpu freq can be enabled.
These are also included in this series. Posting this as a single
series. Please let me know if this is not correct, will split in
the subsequent revisions.
Passed the following DT related validations
make W=1 ARCH=arm64 -j16 DT_CHECKER_FLAGS='-v -m' dt_binding_check DT_SCHEMA_FILES=qcom
make W=1 ARCH=arm64 -j16 CHECK_DTBS=y DT_SCHEMA_FILES=qcom dtbs_check
For IPQ5332:
~~~~~~~~~~~
* This patch series introduces stromer plus ops which
builds on stromer ops and implements a different
set_rate and determine_rate.
A different set_rate is needed since stromer plus PLLs
do not support dynamic frequency scaling. To switch
between frequencies, we have to shut down the PLL,
configure the L and ALPHA values and turn on again. So
introduce the separate set of ops for Stromer Plus PLL.
* Update ipq_pll_stromer_plus to use clk_alpha_pll_stromer_plus_ops
instead of clk_alpha_pll_stromer_ops.
* Set 'l' value to a value that is supported on all SKUs.
* Provide safe source switch for a53pll
* Include IPQ5332 in cpufreq nvmem framework
* Add OPP details to device tree
For IPQ9574:
~~~~~~~~~~~
* Include IPQ9574 in cpufreq nvmem framework
* Add OPP details to device tree
Removed 2 patches from V1 as they have been merged
* dt-bindings: cpufreq: qcom-cpufreq-nvmem: document IPQ5332
* dt-bindings: cpufreq: qcom-cpufreq-nvmem: document IPQ9574
v4: Included a patch to fix 'kernel test robot' build error --
https://lore.kernel.org/r/202310181650.g8THtfsm-lkp@xxxxxxxxx/
v5: Use devm_clk_notifier_register
Merge IPQ53xx and IPQ95xx cases with APQ8096 for speed bin selection
Add reviewed by tags
v6: Except these 2 patches, rest have been merged...
Rebased these to latest top as they don't apply cleanly
(https://lore.kernel.org/linux-arm-msm/20231025062508.vccrmkem45p3fnwe@vireshk-i7/)
Varadarajan Narayanan (2):
cpufreq: qti: Enable cpufreq for ipq53xx
cpufreq: qti: Introduce cpufreq for ipq95xx
drivers/cpufreq/cpufreq-dt-platdev.c | 2 ++
drivers/cpufreq/qcom-cpufreq-nvmem.c | 12 ++++++++++++
2 files changed, 14 insertions(+)
--
2.7.4