From: Neil Armstrong <narmstrong@baylibre.com>
To: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: khilman@baylibre.com, linux-kernel@vger.kernel.org,
linux-gpio@vger.kernel.org, linux-amlogic@lists.infradead.org,
linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
jbrunet@baylibre.com
Subject: Re: [RFC/RFT v3 11/14] arm64: dts: meson-g12a: add cpus OPP table
Date: Wed, 3 Jul 2019 13:53:15 +0200 [thread overview]
Message-ID: <7acdafc1-39e7-a2ec-886f-ca337c60dfe7@baylibre.com> (raw)
In-Reply-To: <CAFBinCBg57gh1x3CKs-YrCvTD0WR2s5zVGWtycb=RGqMiQ-VgA@mail.gmail.com>
On 03/07/2019 01:47, Martin Blumenstingl wrote:
> Hi Neil,
>
> On Mon, Jul 1, 2019 at 11:13 AM Neil Armstrong <narmstrong@baylibre.com> 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
We can't assume the board and the CPU type :-/
Kevin told me about cpufreq policy, where we could add a policy reading the
eFUSE and changing the max frequency, then we could add the whole OPP table.
Neil
>
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next prev parent reply other threads:[~2019-07-03 11:53 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-01 9:12 [RFC/RFT v3 00/14] arm64: g12a: add support for DVFS Neil Armstrong
2019-07-01 9:12 ` [RFC/RFT v3 01/14] pinctrl: meson-g12a: add pwm_a on GPIOE_2 pinmux Neil Armstrong
2019-07-02 22:56 ` Martin Blumenstingl
2019-07-01 9:12 ` [RFC/RFT v3 02/14] clk: core: introduce clk_hw_set_parent() Neil Armstrong
2019-07-02 23:05 ` Martin Blumenstingl
2019-07-01 9:12 ` [RFC/RFT v3 03/14] clk: meson: regmap: export regmap_div ops functions Neil Armstrong
2019-07-01 9:12 ` [RFC/RFT v3 04/14] clk: meson: eeclk: add setup callback Neil Armstrong
2019-07-02 23:16 ` Martin Blumenstingl
2019-07-03 11:45 ` Neil Armstrong
2019-07-03 12:40 ` Jerome Brunet
2019-07-03 12:57 ` Martin Blumenstingl
2019-07-03 14:17 ` Jerome Brunet
2019-07-26 14:50 ` Neil Armstrong
2019-07-29 7:42 ` Jerome Brunet
2019-07-01 9:12 ` [RFC/RFT v3 05/14] soc: amlogic: meson-clk-measure: protect measure with a mutex Neil Armstrong
2019-07-02 23:01 ` Martin Blumenstingl
2019-07-01 9:12 ` [RFC/RFT v3 06/14] soc: amlogic: meson-clk-measure: add G12B second cluster cpu clk Neil Armstrong
2019-07-02 22:58 ` Martin Blumenstingl
2019-07-01 9:12 ` [RFC/RFT v3 07/14] clk: meson: g12a: add notifiers to handle cpu clock change Neil Armstrong
2019-07-02 23:28 ` Martin Blumenstingl
2019-07-03 11:50 ` Neil Armstrong
2019-08-08 4:43 ` Stephen Boyd
2019-07-01 9:12 ` [RFC/RFT v3 08/14] clk: meson: g12a: expose CPUB clock ID for G12B Neil Armstrong
2019-07-02 23:03 ` Martin Blumenstingl
2019-07-01 9:12 ` [RFC/RFT v3 09/14] arm64: dts: move common G12A & G12B modes to meson-g12-common.dtsi Neil Armstrong
2019-07-02 23:54 ` Martin Blumenstingl
2019-07-03 11:51 ` Neil Armstrong
2019-07-03 12:48 ` Jerome Brunet
2019-07-01 9:12 ` [RFC/RFT v3 10/14] arm64: dts: meson-g12-common: add pwm_a on GPIOE_2 pinmux Neil Armstrong
2019-07-02 23:11 ` Martin Blumenstingl
2019-07-01 9:12 ` [RFC/RFT v3 11/14] arm64: dts: meson-g12a: add cpus OPP table Neil Armstrong
2019-07-02 23:47 ` Martin Blumenstingl
2019-07-03 11:53 ` Neil Armstrong [this message]
2019-07-03 12:12 ` Martin Blumenstingl
2019-07-01 9:12 ` [RFC/RFT v3 12/14] arm64: dts: meson-g12a: enable DVFS on G12A boards Neil Armstrong
2019-07-02 23:43 ` Martin Blumenstingl
2019-07-01 9:12 ` [RFC/RFT v3 13/14] arm64: dts: meson-g12b: add cpus OPP tables Neil Armstrong
2019-07-01 9:12 ` [RFC/RFT v3 14/14] arm64: dts: meson-g12b-odroid-n2: enable DVFS Neil Armstrong
2019-07-02 23:45 ` Martin Blumenstingl
2019-07-03 11:54 ` Neil Armstrong
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