From: sudeep.holla@arm.com (Sudeep Holla)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/6] ARM: dts: sun8i: add a cpu0 label to cpu@0 node on A23/33
Date: Tue, 13 Dec 2016 16:45:05 +0000 [thread overview]
Message-ID: <14d63396-0e20-3b25-2ff5-1457823b69bf@arm.com> (raw)
In-Reply-To: <CAGb2v65=Sh-WMEVk0Db48sgUcV6d7-wF_Yh0yJAHANMkGUzFwQ@mail.gmail.com>
On 13/12/16 16:31, Chen-Yu Tsai wrote:
> On Wed, Dec 14, 2016 at 12:09 AM, Sudeep Holla <sudeep.holla@arm.com> wrote:
>>
>>
>> On 13/12/16 15:22, Icenowy Zheng wrote:
>>> A "cpu0" label is needed on cpu at 0 for cpufreq-dt to work.
>>>
>>
>> IIUC any label should be fine and I don't see anything in the driver
>> looking for such label name. All I see is it looks for cpu0 regulator
>> for *legacy* DTs
>>
>>> Add such a label, in order to prepare for cpufreq support of A23/33.
>>>
>>
>> You need this as you add the same label in the following patches. The
>> commit message sounds like cpufreq-dt search for that label by name.
>
> I think a more proper explanation would be:
>
> The cpu's supply regulator is specified at the board level, hence we
> need to add a label to it to reference it without replicating the whole
> tree structure.
Thanks for clarifying, was confused based on the commit log.
--
Regards,
Sudeep
next prev parent reply other threads:[~2016-12-13 16:45 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-13 15:22 [PATCH 0/6] Allwinner A33 CPU frequency scaling support Icenowy Zheng
2016-12-13 15:22 ` [PATCH 1/6] clk: sunxi-ng: fix PLL_CPUX adjusting on A33 Icenowy Zheng
2016-12-13 15:44 ` Maxime Ripard
2016-12-13 15:22 ` [PATCH 2/6] clk: sunxi-ng: set the parent rate when adjustin CPUX clock " Icenowy Zheng
2016-12-13 15:44 ` Maxime Ripard
2016-12-13 20:54 ` Icenowy Zheng
2016-12-14 9:21 ` Maxime Ripard
2016-12-13 15:22 ` [PATCH 3/6] ARM: dts: sun8i: add a cpu0 label to cpu@0 node on A23/33 Icenowy Zheng
2016-12-13 15:45 ` Maxime Ripard
2016-12-13 16:09 ` Sudeep Holla
2016-12-13 16:31 ` Chen-Yu Tsai
2016-12-13 16:45 ` Sudeep Holla [this message]
2016-12-13 15:22 ` [PATCH 4/6] ARM: dts: sun8i: add opp-v2 table for A33 Icenowy Zheng
2016-12-13 19:12 ` Maxime Ripard
2016-12-13 15:22 ` [PATCH 5/6] ARM: dts: sun8i: set cpu-supply in reference tablet DTSI Icenowy Zheng
2016-12-13 19:13 ` Maxime Ripard
2016-12-13 15:22 ` [PATCH 6/6] ARM: dts: sun8i: raise the max voltage of DCDC2 in sun8i reference tablets Icenowy Zheng
2016-12-13 19:14 ` Maxime Ripard
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