linux-kernel - RE: [PATCH 1/2] dt-bindings: trivial-devices: add lt3074

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID:
 <PH0PR03MB6938B71327DAADC17492A5538EF62@PH0PR03MB6938.namprd03.prod.outlook.com>
Date: Thu, 6 Feb 2025 09:05:27 +0000
From: "Encarnacion, Cedric justine" <Cedricjustine.Encarnacion@...log.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
CC: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Jean Delvare <jdelvare@...e.com>,
        Guenter
 Roeck <linux@...ck-us.net>, Jonathan Corbet <corbet@....net>,
        Delphine CC
 Chiu <Delphine_CC_Chiu@...ynn.com>,
        "devicetree@...r.kernel.org"
	<devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>,
        "linux-hwmon@...r.kernel.org"
	<linux-hwmon@...r.kernel.org>,
        "linux-doc@...r.kernel.org"
	<linux-doc@...r.kernel.org>,
        "linux-i2c@...r.kernel.org"
	<linux-i2c@...r.kernel.org>
Subject: RE: [PATCH 1/2] dt-bindings: trivial-devices: add lt3074

> -----Original Message-----
> From: Krzysztof Kozlowski <krzk@...nel.org>
> Sent: Monday, January 27, 2025 3:52 PM
> To: Encarnacion, Cedric justine <Cedricjustine.Encarnacion@...log.com>
> Cc: Rob Herring <robh@...nel.org>; Krzysztof Kozlowski <krzk+dt@...nel.org>;
> Conor Dooley <conor+dt@...nel.org>; Jean Delvare <jdelvare@...e.com>;
> Guenter Roeck <linux@...ck-us.net>; Jonathan Corbet <corbet@....net>;
> Delphine CC Chiu <Delphine_CC_Chiu@...ynn.com>;
> devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; linux-
> hwmon@...r.kernel.org; linux-doc@...r.kernel.org; linux-i2c@...r.kernel.org
> Subject: Re: [PATCH 1/2] dt-bindings: trivial-devices: add lt3074
> 
> [External]
> 
> On Fri, Jan 24, 2025 at 11:39:06PM +0800, Cedric Encarnacion wrote:
> > Add Analog Devices LT3074 Ultralow Noise, High PSRR Dropout Linear
> > Regulator.
> 
> Regulator? Then why is it trivial? No enable-gpios? No I2C interface?
> 
> Best regards,
> Krzysztof

I based this driver primarily on the LT7182S dual-channel silent switcher
regulator. The LT3074 is a single-channel device with basic enable and
power-good GPIOs, fewer registers, and fewer functionalities than the
LT7182S. Like other PMBus drivers, its GPIOs are not exposed.

Here are other PMBus regulators/power modules found in trivial-devices
I also used as reference:

- infineon,irps5401
- delta,q54sj108a2

Best regards,
Cedric