Thread (36 messages) 36 messages, 4 authors, 2019-08-08

Re: [RFC/RFT v3 11/14] arm64: dts: meson-g12a: add cpus OPP table

From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: 2019-07-03 00:43:55
Also in: linux-amlogic, linux-clk, linux-gpio, lkml

Hi Neil,

On Mon, Jul 1, 2019 at 11:13 AM Neil Armstrong [off-list ref] wrote:
Add the OPP table taken from the vendor u200 and u211 DTS.

The Amlogic G12A SoC seems to available in 3 types :
- low-speed: up to 1,8GHz
- mid-speed: up to 1,908GHz
- high-speed: up to 2.1GHz

And the S905X2 opp voltages are slightly higher than the S905D2
OPP voltages for the low-speed table.

This adds the conservative OPP table with the S905X2 higher voltages
and the maximum low-speed OPP frequency.
have you considered all three as separate voltage tables?
you're other patches are assigning the OPP table to the CPU in the
board.dts anyways, so it's easy to use different OPP tables for
different boards

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