From: Shawn Guo <shawnguo2@yeah.net>
To: Primoz Fiser <primoz.fiser@norik.com>
Cc: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
devicetree@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, upstream@lists.phytec.de
Subject: Re: [PATCH] arm64: dts: freescale: imx93-phyboard-nash: Add current sense amplifier
Date: Wed, 20 Aug 2025 11:37:42 +0800 [thread overview]
Message-ID: <aKVDBnMro4kg59Kq@dragon> (raw)
In-Reply-To: <20250714103624.857493-1-primoz.fiser@norik.com>
On Mon, Jul 14, 2025 at 12:36:24PM +0200, Primoz Fiser wrote:
> There is a current sensing circuitry on the phyBOARD-Nash-i.MX93 capable
> of measuring input current consumption of the phyCORE-i.MX93 SoM @ 3.3V.
> Circuity consists of MAX4372 current-sense amplifier (50V/V) with two 70
> mOhm shunts resistors in parallel configuration (effective R = 35 mOhm)
> connected to the SoC internal 12-bit ADC channel #1 (Vref = 1.8V) via
> voltage divider with ratio of 1/2. This results in a current scaling
> factor of 0.502232142 mA/LSB.
>
> Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
Applied, thanks!
prev parent reply other threads:[~2025-08-20 3:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-14 10:36 [PATCH] arm64: dts: freescale: imx93-phyboard-nash: Add current sense amplifier Primoz Fiser
2025-08-20 3:37 ` Shawn Guo [this message]
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