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Message-ID: <8d8af44c-353a-5415-ed15-ccc68db81159@rock-chips.com>
Date: Mon, 22 May 2017 10:29:57 +0800
From: Frank Wang <frank.wang@...k-chips.com>
To: Heiko Stuebner <heiko@...ech.de>
Cc: robh+dt@...nel.org, mark.rutland@....com, linux@...linux.org.uk,
mturquette@...libre.com, sboyd@...eaurora.org, rjw@...ysocki.net,
viresh.kumar@...aro.org, rui.zhang@...el.com, edubezval@...il.com,
linux-arm-kernel@...ts.infradead.org,
linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
linux-clk@...r.kernel.org, charles.chen@...k-chips.com,
cody.xie@...k-chips.com, kevan.lan@...k-chips.com,
huangtao@...k-chips.com, rocky.hao@...k-chips.com,
finley.xiao@...k-chips.com, zhangqing@...k-chips.com,
wmc@...k-chips.com
Subject: Re: [PATCH v2 3/4] arm: dts: rk3229: add a new cpu opp table
Hi Heiko,
On 2017/5/20 5:46, Heiko Stuebner wrote:
> Hi Frank,
>
> Am Mittwoch, 17. Mai 2017, 18:16:16 CEST schrieb Frank Wang:
>> From: Finley Xiao<finley.xiao@...k-chips.com>
>>
>> This patch adds some new frequencies for rk3229 board.
>>
>> Signed-off-by: Finley Xiao<finley.xiao@...k-chips.com>
>> Signed-off-by: Frank Wang<frank.wang@...k-chips.com>
>> Acked-by: Viresh Kumar<viresh.kumar@...aro.org>
>> ---
>> arch/arm/boot/dts/rk3229-cpu-opp.dtsi | 85 +++++++++++++++++++++++++++++++++++
> I'm not yet sure if I like that approach. The other option I'm considering
> and also tend to prefer at the moment would be to have this in a
> rk3229.dtsi, creating a chain of
> rk322x.dtsi
> \- rk3228-evb.dts
> \- rk3229.dtsi
> \- rk3229-evb.dts
>
> similar to what we do with the rk3xxx.dtsi -> rk3188.dtsi.
>
> If I remember correctly, there are some other tiny differences between the
> rk3228 and rk3229, so having the rk3229.dtsi already would make it
> easier to place needed stuff into it later on.
That makes sense, I will amend that based on your comments.
BR.
Frank
> Heiko
>
>> 1 file changed, 85 insertions(+)
>> create mode 100644 arch/arm/boot/dts/rk3229-cpu-opp.dtsi
>>
>> diff --git a/arch/arm/boot/dts/rk3229-cpu-opp.dtsi b/arch/arm/boot/dts/rk3229-cpu-opp.dtsi
>> new file mode 100644
>> index 0000000..89e8413
>> --- /dev/null
>> +++ b/arch/arm/boot/dts/rk3229-cpu-opp.dtsi
>> @@ -0,0 +1,85 @@
>> +/*
>> + * Copyright (c) 2017 Fuzhou Rockchip Electronics Co., Ltd
>> + *
>> + * This file is dual-licensed: you can use it either under the terms
>> + * of the GPL or the X11 license, at your option. Note that this dual
>> + * licensing only applies to this file, and not this project as a
>> + * whole.
>> + *
>> + * a) This library is free software; you can redistribute it and/or
>> + * modify it under the terms of the GNU General Public License as
>> + * published by the Free Software Foundation; either version 2 of the
>> + * License, or (at your option) any later version.
>> + *
>> + * This library is distributed in the hope that it will be useful,
>> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
>> + * GNU General Public License for more details.
>> + *
>> + * Or, alternatively,
>> + *
>> + * b) Permission is hereby granted, free of charge, to any person
>> + * obtaining a copy of this software and associated documentation
>> + * files (the "Software"), to deal in the Software without
>> + * restriction, including without limitation the rights to use,
>> + * copy, modify, merge, publish, distribute, sublicense, and/or
>> + * sell copies of the Software, and to permit persons to whom the
>> + * Software is furnished to do so, subject to the following
>> + * conditions:
>> + *
>> + * The above copyright notice and this permission notice shall be
>> + * included in all copies or substantial portions of the Software.
>> + *
>> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
>> + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
>> + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
>> + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
>> + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
>> + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
>> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
>> + * OTHER DEALINGS IN THE SOFTWARE.
>> + */
>> +
>> +/ {
>> + /delete-node/ opp-table0;
>> +
>> + cpu0_opp_table: opp_table0 {
>> + compatible = "operating-points-v2";
>> + opp-shared;
>> +
>> + opp-408000000 {
>> + opp-hz = /bits/ 64 <408000000>;
>> + opp-microvolt = <950000>;
>> + clock-latency-ns = <40000>;
>> + opp-suspend;
>> + };
>> + opp-600000000 {
>> + opp-hz = /bits/ 64 <600000000>;
>> + opp-microvolt = <975000>;
>> + };
>> + opp-816000000 {
>> + opp-hz = /bits/ 64 <816000000>;
>> + opp-microvolt = <1000000>;
>> + };
>> + opp-1008000000 {
>> + opp-hz = /bits/ 64 <1008000000>;
>> + opp-microvolt = <1175000>;
>> + };
>> + opp-1200000000 {
>> + opp-hz = /bits/ 64 <1200000000>;
>> + opp-microvolt = <1275000>;
>> + };
>> + opp-1296000000 {
>> + opp-hz = /bits/ 64 <1296000000>;
>> + opp-microvolt = <1325000>;
>> + };
>> + opp-1392000000 {
>> + opp-hz = /bits/ 64 <1392000000>;
>> + opp-microvolt = <1375000>;
>> + };
>> + opp-1464000000 {
>> + opp-hz = /bits/ 64 <1464000000>;
>> + opp-microvolt = <1400000>;
>> + };
>> + };
>> +};
>>
>
>
>
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