| Message ID | 20250124-upstream-lt3074-v1-1-7603f346433e@analog.com |
|---|---|
| State | New |
| Headers | show |
| Series | Add support for LT3074 low voltage linear regulator | expand |
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
> -----Original Message----- > From: Krzysztof Kozlowski <krzk@kernel.org> > Sent: Monday, January 27, 2025 3:52 PM > To: Encarnacion, Cedric justine <Cedricjustine.Encarnacion@analog.com> > Cc: Rob Herring <robh@kernel.org>; Krzysztof Kozlowski <krzk+dt@kernel.org>; > Conor Dooley <conor+dt@kernel.org>; Jean Delvare <jdelvare@suse.com>; > Guenter Roeck <linux@roeck-us.net>; Jonathan Corbet <corbet@lwn.net>; > Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>; > devicetree@vger.kernel.org; linux-kernel@vger.kernel.org; linux- > hwmon@vger.kernel.org; linux-doc@vger.kernel.org; linux-i2c@vger.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
diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml index 6bdcd055e763..8f7a8e28fb97 100644 --- a/Documentation/devicetree/bindings/trivial-devices.yaml +++ b/Documentation/devicetree/bindings/trivial-devices.yaml @@ -41,6 +41,8 @@ properties: - adi,ad5110 # Analog Devices ADP5589 Keypad Decoder and I/O Expansion - adi,adp5589 + # Analog Devices LT3074 3A, 5.5V Low Voltage Linear Regulator + - adi,lt3074 # Analog Devices LT7182S Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher - adi,lt7182s # AMS iAQ-Core VOC Sensor
Add Analog Devices LT3074 Ultralow Noise, High PSRR Dropout Linear Regulator. Signed-off-by: Cedric Encarnacion <cedricjustine.encarnacion@analog.com> --- Documentation/devicetree/bindings/trivial-devices.yaml | 2 ++ 1 file changed, 2 insertions(+)