Thread (20 messages) 20 messages, 6 authors, 2019-07-23

Re: [PATCH v4 0/7] cpufreq support for Raspberry Pi

From: Stefan Wahren <hidden>
Date: 2019-06-22 09:55:18
Also in: linux-clk, linux-pm, lkml

Hi Stephen,
hi Mike,

Am 13.06.19 um 06:31 schrieb Stefan Wahren:
Hi Florian,
hi Stephen,

Am 13.06.19 um 05:31 schrieb Florian Fainelli:
quoted
On 6/12/2019 11:24 AM, Nicolas Saenz Julienne wrote:
quoted
Hi all,
this aims at adding cpufreq support to the Raspberry Pi family of
boards.

The series first factors out 'pllb' from clk-bcm2385 and creates a new
clk driver that operates it over RPi's firmware interface[1]. We are
forced to do so as the firmware 'owns' the pll and we're not allowed to
change through the register interface directly as we might race with the
over-temperature and under-voltage protections provided by the firmware.

Next it creates a minimal cpufreq driver that populates the CPU's opp
table, and registers cpufreq-dt. Which is needed as the firmware
controls the max and min frequencies available.

This was tested on a RPi3b+ and RPI2b, both using multi_v7_defconfig and
arm64's defconfig.
How do we go about merging this? Stefan, will you pick up patch 3, 6 and
7 and submit them for 5.3/5.4? Viresh has already picked up patch 4.
is it possible to let patches 1,2, 3 and 5 go via clk-tree?

I would take care of 6 and 7.

Stefan
are you fine with the series, since Viresh already picked up patch 4?

are you okay with my suggestion above?

Stefan



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