Re: [PATCH v1 3/4] arm64: dts: freescale: imx8mm-verdin: replace sleep-moci hog with regulator

From: Francesco Dolcini <francesco@dolcini.it>
To: Stefan Eichenberger <eichest@gmail.com>
Cc: robh@kernel.org, krzysztof.kozlowski+dt@linaro.org,
	conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de,
	kernel@pengutronix.de, festevam@gmail.com,
	francesco.dolcini@toradex.com, devicetree@vger.kernel.org,
	imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Stefan Eichenberger <stefan.eichenberger@toradex.com>
Subject: Re: [PATCH v1 3/4] arm64: dts: freescale: imx8mm-verdin: replace sleep-moci hog with regulator
Date: Fri, 5 Apr 2024 18:48:16 +0200	[thread overview]
Message-ID: <20240405164816.GC5994@francesco-nb> (raw)
In-Reply-To: <20240405160720.5977-4-eichest@gmail.com>

On Fri, Apr 05, 2024 at 06:07:19PM +0200, Stefan Eichenberger wrote:
> From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> 
> The Verdin family has a signal called sleep-moci which can be used to
> turn off peripherals on the carrier board when the SoM goes into
> suspend. So far we have hogged this signal, which means the peripherals
> are always on and it is not possible to add peripherals that depend on
> the sleep-moci to be on. With this change, we replace the hog with a
> regulator so that peripherals can add their own regulators that use the
> same gpio. Carrier boards that allow peripherals to be powered off in
> suspend can disable this regulator and implement their own regulator to
> control the sleep-moci.
> 
> Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>

Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>