From: Mathieu Othacehe <othacehe@gnu.org>
To: Stefan Wahren <wahrenst@gmx.net>
Cc: Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.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>,
NXP Linux Team <linux-imx@nxp.com>,
Li Yang <leoyang.li@nxp.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Subject: Re: [PATCH v4 2/2] arm64: dts: imx93-var-som: Add Variscite VAR-SOM-MX93
Date: Fri, 29 Dec 2023 14:00:58 +0100 [thread overview]
Message-ID: <87plypqi2d.fsf@gnu.org> (raw)
In-Reply-To: <d378ad67-2a75-4a14-a131-7eb91de9ad3d@gmx.net> (Stefan Wahren's message of "Thu, 28 Dec 2023 21:46:08 +0100")
Hello Stefan,
> there are neither gpio-line-names defined for this GPIO expander nor the
> SOC. Are there no GPIOs which can be accessed from userspace?
The carrier board schematic is here:
https://www.variscite.com/wp-content/uploads/2023/01/symphony-board_VAR-SOM-MX93.pdf
All the pin headers are mapped to specific functions. On the other,
already mainlined device-trees, that are based on the same "Symphony"
carrier board, there are however gpio-keys for three buttons:
gpio-keys {
compatible = "gpio-keys";
key-back {
label = "Back";
gpios = <&pca9534 1 GPIO_ACTIVE_LOW>;
linux,code = <KEY_BACK>;
};
key-home {
label = "Home";
gpios = <&pca9534 2 GPIO_ACTIVE_LOW>;
linux,code = <KEY_HOME>;
};
key-menu {
label = "Menu";
gpios = <&pca9534 3 GPIO_ACTIVE_LOW>;
linux,code = <KEY_MENU>;
};
};
I can add that in v5.
Thanks,
Mathieu
next prev parent reply other threads:[~2023-12-29 13:01 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-27 17:09 [PATCH v4 0/2] Add Variscite VAR-SOM-MX93 support Mathieu Othacehe
2023-12-27 17:09 ` [PATCH v4 1/2] dt-bindings: arm: fsl: Add VAR-SOM-MX93 with Symphony Mathieu Othacehe
2023-12-27 17:09 ` [PATCH v4 2/2] arm64: dts: imx93-var-som: Add Variscite VAR-SOM-MX93 Mathieu Othacehe
2023-12-28 20:46 ` Stefan Wahren
2023-12-29 13:00 ` Mathieu Othacehe [this message]
2023-12-29 14:08 ` Stefan Wahren
2023-12-29 16:48 ` Mathieu Othacehe
2023-12-29 17:17 ` Stefan Wahren
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