Linux-ARM-Kernel Archive on lore.kernel.org
 help / color / Atom feed
From: Kever Yang <kever.yang@rock-chips.com>
To: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org, heiko@sntech.de,
	linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
	Rob Herring <robh+dt@kernel.org>,
	Jagan Teki <jagan@amarulasolutions.com>,
	Ezequiel Garcia <ezequiel@collabora.com>,
	linux-arm-kernel@lists.infradead.org,
	Akash Gajjar <akash@openedev.com>
Subject: Re: [PATCH 2/3] arm64: dts: rk3399-rock960: add vdd_log
Date: Tue, 12 Nov 2019 16:10:17 +0800
Message-ID: <3d129826-7705-819e-e68b-cc9080eb6c95@rock-chips.com> (raw)
In-Reply-To: <20191111052232.GA2842@Mani-XPS-13-9360>


On 2019/11/11 下午1:22, Manivannan Sadhasivam wrote:
> Hi Kever,
>
> On Mon, Nov 11, 2019 at 08:51:57AM +0800, Kever Yang wrote:
>> Add vdd_log node according to rock960 schematic V13.
>>
>> Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
>> ---
>>
>>   arch/arm64/boot/dts/rockchip/rk3399-rock960.dtsi | 12 ++++++++++++
>>   1 file changed, 12 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock960.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock960.dtsi
>> index c7d48d41e184..73afee257115 100644
>> --- a/arch/arm64/boot/dts/rockchip/rk3399-rock960.dtsi
>> +++ b/arch/arm64/boot/dts/rockchip/rk3399-rock960.dtsi
>> @@ -76,6 +76,18 @@
>>   		regulator-always-on;
>>   		vin-supply = <&vcc5v0_sys>;
>>   	};
>> +
>> +	vdd_log: vdd-log {
>> +		compatible = "pwm-regulator";
>> +		pwms = <&pwm2 0 25000 1>;
>> +		regulator-name = "vdd_log";
>> +		regulator-always-on;
>> +		regulator-boot-on;
>> +		regulator-min-microvolt = <800000>;
>> +		regulator-max-microvolt = <1400000>;
>> +		regulator-init-microvolt = <950000>;
> The default value seems to be 0.9v as per both Rock960 and Ficus schematics.


The default value is 0.9V when pwm-regulator is not enabled, and this 
'init-microvolt' suppose to set the

init value when pwm-regulator is enabled. I set this to 950mV because 
Peter report that he experience

the system hang during Fedora boot  up, and update the vdd_log to 950mV 
can fix the issue due to

engineer measure on another rk3399 board puma-Q7.


Thanks,

- Kever

>
> Other than that,
> Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
>
> Thanks,
> Mani
>
>> +		vin-supply = <&vcc_sys>;
>> +	};
>>   };
>>   
>>   &cpu_l0 {
>> -- 
>> 2.17.1
>>



_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply index

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-11  0:51 [PATCH 1/3] arm64: dts: rockchip: Fix min voltage for rk3399-firefly vdd_log Kever Yang
2019-11-11  0:51 ` [PATCH 2/3] arm64: dts: rk3399-rock960: add vdd_log Kever Yang
2019-11-11  5:22   ` Manivannan Sadhasivam
2019-11-11  5:26     ` Manivannan Sadhasivam
2019-11-12  8:10     ` Kever Yang [this message]
2019-11-12 17:17       ` Manivannan Sadhasivam
2019-11-13  2:44         ` Kever Yang
2019-11-13  3:21           ` Manivannan Sadhasivam
2019-11-11  0:51 ` [PATCH 3/3] arm64: dts: rk3399: Add init voltage for vdd_log Kever Yang
2019-11-11  8:42   ` Soeren Moch
2019-11-12  8:04     ` Kever Yang
2019-11-12  8:10       ` Heiko Stübner
2019-11-13  3:21         ` Kever Yang
2019-11-18  1:05           ` Heiko Stuebner
2019-11-12  8:16       ` Markus Reichl
2019-11-12  8:44         ` Sören Moch
2019-11-12  8:51           ` Markus Reichl
2019-11-12 10:02         ` Kever Yang
2019-11-12 10:19           ` Soeren Moch
2019-11-12 11:06             ` Markus Reichl
2019-11-12 11:42             ` [PATCH] arm64: dts: rockchip: Fix vdd_log on rk3399-roc-pc Markus Reichl
2019-11-18  1:03               ` Heiko Stuebner
2019-11-13 17:01   ` [PATCH 3/3] arm64: dts: rk3399: Add init voltage for vdd_log Doug Anderson
2019-11-14  1:53     ` Kever Yang
2019-11-13 17:50   ` Vicente Bergas
2019-11-18  1:04 ` [PATCH 1/3] arm64: dts: rockchip: Fix min voltage for rk3399-firefly vdd_log Heiko Stuebner

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=3d129826-7705-819e-e68b-cc9080eb6c95@rock-chips.com \
    --to=kever.yang@rock-chips.com \
    --cc=akash@openedev.com \
    --cc=devicetree@vger.kernel.org \
    --cc=ezequiel@collabora.com \
    --cc=heiko@sntech.de \
    --cc=jagan@amarulasolutions.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-rockchip@lists.infradead.org \
    --cc=manivannan.sadhasivam@linaro.org \
    --cc=mark.rutland@arm.com \
    --cc=robh+dt@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-ARM-Kernel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-arm-kernel/0 linux-arm-kernel/git/0.git
	git clone --mirror https://lore.kernel.org/linux-arm-kernel/1 linux-arm-kernel/git/1.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-arm-kernel linux-arm-kernel/ https://lore.kernel.org/linux-arm-kernel \
		linux-arm-kernel@lists.infradead.org
	public-inbox-index linux-arm-kernel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.infradead.lists.linux-arm-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git