From: Stefano Radaelli <stefano.radaelli21@gmail•com>
To: Frank Li <Frank.li@nxp•com>
Cc: linux-kernel@vger•kernel.org, devicetree@vger•kernel.org,
imx@lists•linux.dev, linux-arm-kernel@lists•infradead.org,
pierluigi.p@variscite•com,
Stefano Radaelli <stefano.r@variscite•com>,
Rob Herring <robh@kernel•org>,
Krzysztof Kozlowski <krzk+dt@kernel•org>,
Conor Dooley <conor+dt@kernel•org>,
Sascha Hauer <s.hauer@pengutronix•de>,
Pengutronix Kernel Team <kernel@pengutronix•de>,
Fabio Estevam <festevam@gmail•com>
Subject: Re: [PATCH v2 1/4] arm64: dts: imx93-var-som-symphony: add TPM support
Date: Wed, 3 Jun 2026 10:10:38 +0200 [thread overview]
Message-ID: <ah_hfhpujDwcGk9W@Lord-Beerus.station> (raw)
In-Reply-To: <ah3wMi6QW6DUPrS4@lizhi-Precision-Tower-5810>
On Mon, Jun 01, 2026 at 04:48:50PM -0400, Frank Li wrote:
> On Fri, May 29, 2026 at 12:52:44PM +0200, Stefano Radaelli wrote:
> > From: Stefano Radaelli <stefano.r@variscite•com>
> >
> > Add the ST33KTPM2XI2C TPM device on the Symphony carrier board.
> >
> > The TPM enable line is a board-level signal driven through the PCAL6408
> > GPIO expander. Keep it asserted with a GPIO hog so the TPM is enabled on
> > this board.
> >
> > The TPM binding does not provide a dedicated enable GPIO or supply
> > property, so this cannot currently be expressed as a direct TPM
> > dependency.
>
> there are reset/reset-gpio, can you use it?
>
> Frank
> >
Hi Frank,
you are right, reset-gpios property will do the job.
I'll send V2 soon,
Thank you,
Stefano
next prev parent reply other threads:[~2026-06-03 8:10 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-29 10:52 [PATCH v2 0/4] arm64: dts: imx93-var-som-symphony: align DTS with hardware revision Stefano Radaelli
2026-05-29 10:52 ` [PATCH v2 1/4] arm64: dts: imx93-var-som-symphony: add TPM support Stefano Radaelli
2026-06-01 20:48 ` Frank Li
2026-06-03 8:10 ` Stefano Radaelli [this message]
2026-05-29 10:52 ` [PATCH v2 2/4] arm64: dts: imx93-var-som-symphony: enable UART7 Stefano Radaelli
2026-05-29 10:52 ` [PATCH v2 3/4] arm64: dts: imx93-var-som-symphony: keep RGB_SEL low Stefano Radaelli
2026-05-29 10:52 ` [PATCH v2 4/4] arm64: dts: imx93-var-som-symphony: enable TPM3 PWM Stefano Radaelli
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