linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Wei Xu <xuwei5@hisilicon.com>
To: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: <linuxarm@huawei.com>, <mauro.chehab@huawei.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Rob Herring <robh@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	<devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, "xuwei (O)" <xuwei5@huawei.com>
Subject: Re: [PATCH 1/2] dts: hisilicon: add support for the PMIC found on Hikey 970
Date: Mon, 26 Jul 2021 14:35:33 +0800	[thread overview]
Message-ID: <60FE57B5.2010603@hisilicon.com> (raw)
In-Reply-To: <20210726081812.54431189@coco.lan>

Hi Mauro,

On 2021/7/26 14:19, Mauro Carvalho Chehab wrote:
> Em Mon, 26 Jul 2021 10:40:44 +0800
> Wei Xu <xuwei5@hisilicon.com> escreveu:
> 
>> Hi Mauro,
>>
>> On 2021/7/24 16:55, Mauro Carvalho Chehab wrote:
>>> Add a device tree for the HiSilicon 6421v600 SPMI PMIC, used
>>> on HiKey970 board.
>>>
>>> As we now have support for it, change the fixed regulators
>>> used by the SD I/O to use the proper LDO supplies.
>>>
>>> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
>>> ---
>>>  .../boot/dts/hisilicon/hi3670-hikey970.dts    | 22 +----
>>>  .../boot/dts/hisilicon/hikey970-pmic.dtsi     | 86 +++++++++++++++++++
>>>  2 files changed, 89 insertions(+), 19 deletions(-)
>>>  create mode 100644 arch/arm64/boot/dts/hisilicon/hikey970-pmic.dtsi
>>>
>>> diff --git a/arch/arm64/boot/dts/hisilicon/hi3670-hikey970.dts b/arch/arm64/boot/dts/hisilicon/hi3670-hikey970.dts
>>> index d8abf442ee7e..7c32f5fd5cc5 100644
>>> --- a/arch/arm64/boot/dts/hisilicon/hi3670-hikey970.dts
>>> +++ b/arch/arm64/boot/dts/hisilicon/hi3670-hikey970.dts
>>> @@ -12,6 +12,7 @@
>>>  
>>>  #include "hi3670.dtsi"
>>>  #include "hikey970-pinctrl.dtsi"
>>> +#include "hikey970-pmic.dtsi"
>>>  
>>>  / {
>>>  	model = "HiKey970";
>>> @@ -39,23 +40,6 @@ memory@0 {
>>>  		reg = <0x0 0x0 0x0 0x0>;
>>>  	};
>>>  
>>> -	sd_1v8: regulator-1v8 {
>>> -		compatible = "regulator-fixed";
>>> -		regulator-name = "fixed-1.8V";
>>> -		regulator-min-microvolt = <1800000>;
>>> -		regulator-max-microvolt = <1800000>;
>>> -		regulator-always-on;
>>> -	};
>>> -
>>> -	sd_3v3: regulator-3v3 {
>>> -		compatible = "regulator-fixed";
>>> -		regulator-name = "fixed-3.3V";
>>> -		regulator-min-microvolt = <3300000>;
>>> -		regulator-max-microvolt = <3300000>;
>>> -		regulator-boot-on;
>>> -		regulator-always-on;
>>> -	};
>>> -
>>>  	wlan_en: wlan-en-1-8v {
>>>  		compatible = "regulator-fixed";
>>>  		regulator-name = "wlan-en-regulator";
>>> @@ -402,8 +386,8 @@ &dwmmc1 {
>>>  	pinctrl-0 = <&sd_pmx_func
>>>  		     &sd_clk_cfg_func  
>>>  		     &sd_cfg_func>;  
>>> -	vmmc-supply = <&sd_3v3>;
>>> -	vqmmc-supply = <&sd_1v8>;
>>> +	vmmc-supply = <&ldo16>;
>>> +	vqmmc-supply = <&ldo9>;
>>>  	status = "okay";
>>>  };
>>>  
>>> diff --git a/arch/arm64/boot/dts/hisilicon/hikey970-pmic.dtsi b/arch/arm64/boot/dts/hisilicon/hikey970-pmic.dtsi
>>> new file mode 100644
>>> index 000000000000..970047f2dabd
>>> --- /dev/null
>>> +++ b/arch/arm64/boot/dts/hisilicon/hikey970-pmic.dtsi
>>> @@ -0,0 +1,86 @@
>>> +// SPDX-License-Identifier: GPL-2.0
>>> +/*
>>> + * dts file for Hi6421v600 SPMI PMIC used at the HiKey970 Development Board
>>> + *
>>> + * Copyright (C) 2020, Huawei Tech. Co., Ltd.
>>> + */
>>> +
>>> +#include <dt-bindings/spmi/spmi.h>
>>> +
>>> +/ {
>>> +	spmi: spmi@fff24000 {
>>> +		compatible = "hisilicon,kirin970-spmi-controller";
>>> +		#address-cells = <2>;
>>> +		#size-cells = <0>;
>>> +		status = "okay";
>>> +		reg = <0x0 0xfff24000 0x0 0x1000>;
>>> +		hisilicon,spmi-channel = <2>;
>>> +
>>> +		pmic: pmic@0 {
>>> +			compatible = "hisilicon,hi6421-spmi";  
>>
>> Should this be "hisilicon,hi6421-pmic" which is already in the binding document "mfd/hi6421.txt"?
>> Others are OK to me.
> 
> No. 
> 
> hisilicon,hi6421-pmic is used by this driver
> 	drivers/mfd/hi6421-pmic-core.c
> 
> which provides support for the Hi6421 variants that don't use a MIPI
> SPMI bus.
> 
> The "hisilicon,hi6421-spmi" compatible is for the new driver:
> 	drivers/mfd/hi6421-spmi-pmic.c
> 
> And it is defined at:
> 	Documentation/devicetree/bindings/mfd/hisilicon,hi6421-spmi-pmic.yaml
> 
> Both DT bindings and the driver were promoted from staging on this patch:
> 
> 	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git/commit/?h=staging-next&id=9bd9e0de1cf5b89c4854be505ac0a418ddcc01bf

Got it. Thanks for your kind explanation!
So I am fine with this patch.
Do you need my ack now or later I can merge it once it is out of staging.

Best Regards,
Wei

> 
> Regards,
> Mauro
> .
> 

  reply	other threads:[~2021-07-26  6:35 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-24  8:55 [PATCH 0/2] Add support for Kirin 970 PMIC and USB3 Mauro Carvalho Chehab
2021-07-24  8:55 ` [PATCH 1/2] dts: hisilicon: add support for the PMIC found on Hikey 970 Mauro Carvalho Chehab
2021-07-26  2:40   ` Wei Xu
2021-07-26  6:19     ` Mauro Carvalho Chehab
2021-07-26  6:35       ` Wei Xu [this message]
2021-07-26  7:43         ` Mauro Carvalho Chehab
2021-07-26  8:10           ` Wei Xu
2021-07-24  8:55 ` [PATCH 2/2] dts: hisilicon: add support for USB3 " Mauro Carvalho Chehab
2021-07-26  3:01   ` Wei Xu
2021-07-26  9:50     ` Mauro Carvalho Chehab

Reply instructions:

You may reply publicly 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=60FE57B5.2010603@hisilicon.com \
    --to=xuwei5@hisilicon.com \
    --cc=devicetree@vger.kernel.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linuxarm@huawei.com \
    --cc=mauro.chehab@huawei.com \
    --cc=mchehab+huawei@kernel.org \
    --cc=robh+dt@kernel.org \
    --cc=robh@kernel.org \
    --cc=xuwei5@huawei.com \
    --subject='Re: [PATCH 1/2] dts: hisilicon: add support for the PMIC found on Hikey 970' \
    /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

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).