Christian Lamparter a44d435c1d ipq40xx: fix apss cpu overclocking spam
There's an interaction issue between the clk changes:"
clk: qcom: ipq4019: Add the apss cpu pll divider clock node
clk: qcom: ipq4019: remove fixed clocks and add pll clocks
" and the cpufreq-dt.

cpufreq-dt is now spamming the kernel-log with the following:

[ 1099.190658] cpu cpu0: dev_pm_opp_set_rate: failed to find current OPP
for freq 761142857 (-34)

This only happens on certain devices like the Compex WPJ428
and AVM FritzBox!4040. However, other devices like the Asus
RT-AC58U and Meraki MR33 work just fine.

The issue stem from the fact that all higher CPU-Clocks
are achieved by switching the clock-parent to the P_DDRPLLAPSS
(ddrpllapss). Which is set by Qualcomm's proprietary bootcode
as part of the DDR calibration.

For example, the FB4040 uses 256 MiB Nanya NT5CC128M16IP clocked
at round 533 MHz (ddrpllsdcc = 190285714 Hz).

whereas the 128 MiB Nanya NT5CC64M16GP-DI in the ASUS RT-AC58U is
clocked at a slightly higher 537 MHz ( ddrpllsdcc = 192000000 Hz).

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2018-03-14 19:04:51 +01:00
2018-02-10 20:16:39 +01:00
2018-03-09 22:13:19 +01:00
2018-03-09 22:13:21 +01:00
2007-02-26 01:05:09 +00:00
2016-03-20 17:29:15 +01:00

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Please use "make menuconfig" to choose your preferred
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You need to have installed gcc, binutils, bzip2, flex, python, perl, make,
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Run "./scripts/feeds update -a" to get all the latest package definitions
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Use "make menuconfig" to configure your image.

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