| Message ID | 20231026144824.4065145-4-o.rempel@pengutronix.de |
|---|---|
| State | Accepted |
| Commit | 633cd1c0a9de7609f97c0c86e3ac81153e8263b0 |
| Headers | show |
| Series | regulator: add under-voltage support (part 2) | expand |
On Fri, Oct 27, 2023 at 04:24:40PM -0500, Rob Herring wrote: > On Thu, Oct 26, 2023 at 04:48:22PM +0200, Oleksij Rempel wrote: > > In certain projects, the main system regulator, composed of simple > > components including an under-voltage detector and capacitors, can be > > aptly described as a fixed regulator in the device tree. To cater to > > such use cases, this patch extends the fixed regulator binding to > > support the 'system-critical-regulator' property. This property > > signifies that the fixed-regulator is vital for system stability. > There is no programming interface for fixed-regulators, so how do you > know an under/over voltage condition? There's support for interrupts now - it's a just a simple signal so if the interrupt is asserted you know there's an error but that's all you know.
On Thu, 26 Oct 2023 16:48:22 +0200, Oleksij Rempel wrote: > In certain projects, the main system regulator, composed of simple > components including an under-voltage detector and capacitors, can be > aptly described as a fixed regulator in the device tree. To cater to > such use cases, this patch extends the fixed regulator binding to > support the 'system-critical-regulator' property. This property > signifies that the fixed-regulator is vital for system stability. > > Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> > --- > .../devicetree/bindings/regulator/fixed-regulator.yaml | 2 ++ > 1 file changed, 2 insertions(+) > Acked-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/regulator/fixed-regulator.yaml b/Documentation/devicetree/bindings/regulator/fixed-regulator.yaml index ce7751b9129c..9ff9abf2691a 100644 --- a/Documentation/devicetree/bindings/regulator/fixed-regulator.yaml +++ b/Documentation/devicetree/bindings/regulator/fixed-regulator.yaml @@ -105,6 +105,8 @@ properties: description: Interrupt signaling a critical under-voltage event. + system-critical-regulator: true + required: - compatible - regulator-name
In certain projects, the main system regulator, composed of simple components including an under-voltage detector and capacitors, can be aptly described as a fixed regulator in the device tree. To cater to such use cases, this patch extends the fixed regulator binding to support the 'system-critical-regulator' property. This property signifies that the fixed-regulator is vital for system stability. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> --- .../devicetree/bindings/regulator/fixed-regulator.yaml | 2 ++ 1 file changed, 2 insertions(+)