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

[Encarnacion, Cedric justine]

> -----Original Message-----
> From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> Sent: Monday, January 27, 2025 3:52 PM
> To: Encarnacion, Cedric justine <Cedricjustine.Encarnacion@xxxxxxxxxx>
> Cc: Rob Herring <robh@xxxxxxxxxx>; Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>;
> Conor Dooley <conor+dt@xxxxxxxxxx>; Jean Delvare <jdelvare@xxxxxxxx>;
> Guenter Roeck <linux@xxxxxxxxxxxx>; Jonathan Corbet <corbet@xxxxxxx>;
> Delphine CC Chiu <Delphine_CC_Chiu@xxxxxxxxxx>;
> devicetree@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux-
> hwmon@xxxxxxxxxxxxxxx; linux-doc@xxxxxxxxxxxxxxx; linux-i2c@xxxxxxxxxxxxxxx
> 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