linux-kernel - [PATCH v3 0/2] NFC: nxp-nci: Add pad supply voltage pvdd-supply

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20230609182639.85034-1-raymondhackley@protonmail.com>
Date:   Fri, 09 Jun 2023 18:27:02 +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 v3 0/2] NFC: nxp-nci: Add pad supply voltage pvdd-supply

v3: Fix weird wrapping and drop another unnecessary nxp_nci_i2c_poweroff()
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.