linux-kernel - [PATCH 0/4] regulator: sy7636a: define and init all resources needed

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Message-Id: <20250906-sy7636-rsrc-v1-0-e2886a9763a7@kernel.org>
Date: Sat, 06 Sep 2025 11:09:11 +0200
From: Andreas Kemnade <akemnade@...nel.org>
To: Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Alistair Francis <alistair@...stair23.me>, 
 Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 Andreas Kemnade <akemnade@...nel.org>
Subject: [PATCH 0/4] regulator: sy7636a: define and init all resources
 needed

The SY7636A has some pins which can be hardwired or used to have more
more advanced power management available. As several devices containing
this regulator have these pins not hardwired, but instead connected to some
GPIO, enhance the driver to have them defined and initialized.
Also add the ability to power off the chip completely by defining some
input power supply.

Actually implementing better power management is planned to be
implemented as a second step. The regulators in the SY7636A should only
be on for a short time during display refresh, but currently they are
unconditionally forcefully enabled by the hwmon part of this chip.

Signed-off-by: Andreas Kemnade <akemnade@...nel.org>
---
Andreas Kemnade (4):
      dt-bindings: mfd: sy7636a: Add missing gpio pins and supply
      regulator: sy7636a: fix lifecycle of power good gpio
      regulator: sy7636a: add gpios and input regulator
      ARM: dts: imx: e70k02: add sy7636

 .../devicetree/bindings/mfd/silergy,sy7636a.yaml   | 16 +++++++++++
 arch/arm/boot/dts/nxp/imx/e70k02.dtsi              | 25 +++++++++++++++-
 .../arm/boot/dts/nxp/imx/imx6sl-tolino-vision5.dts | 24 ++++++++++++++++
 .../arm/boot/dts/nxp/imx/imx6sll-kobo-librah2o.dts | 24 ++++++++++++++++
 drivers/regulator/sy7636a-regulator.c              | 33 ++++++++++++++++++++--
 5 files changed, 118 insertions(+), 4 deletions(-)
---
base-commit: 1b237f190eb3d36f52dffe07a40b5eb210280e00
change-id: 20250906-sy7636-rsrc-c20aa6baa2c4

Best regards,
--  
Andreas Kemnade <akemnade@...nel.org>