linux-kernel - [PATCH v2 0/2] NFC: nxp-nci: Add pad supply voltage pvdd-supply

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Message-ID: <20230609154033.3511-1-raymondhackley@protonmail.com>
Date:   Fri, 09 Jun 2023 15:41:02 +0000
From:   Raymond Hackley <raymondhackley@...tonmail.com>
To:     linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Michael Walle <michael@...le.cc>,
        Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        Jeremy Kerr <jk@...econstruct.com.au>,
        Raymond Hackley <raymondhackley@...tonmail.com>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH v2 0/2] NFC: nxp-nci: Add pad supply voltage pvdd-supply

v2: Use dev_err_probe() and drop unnecessary nxp_nci_i2c_poweroff()

PN547/553, QN310/330 chips on some devices require a pad supply voltage
(PVDD). Otherwise, the NFC won't power up.

Implement support for pad supply voltage pvdd-supply that is enabled by
the nxp-nci driver so that the regulator gets enabled when needed.