linux-kernel - [RFC PATCH 0/4] Implement a PSCI SYSTEM

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Message-ID: <20230724223057.1208122-1-quic_eberman@quicinc.com>
Date:   Mon, 24 Jul 2023 15:30:50 -0700
From:   Elliot Berman <quic_eberman@...cinc.com>
To:     Mark Rutland <mark.rutland@....com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Sebastian Reichel <sre@...nel.org>
CC:     Elliot Berman <quic_eberman@...cinc.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        "Rob Herring" <robh+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-pm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <kernel@...cinc.com>,
        Satya Durga Srinivasu Prabhala <quic_satyap@...cinc.com>,
        Melody Olvera <quic_molvera@...cinc.com>,
        "Prasad Sodagudi" <quic_psodagud@...cinc.com>
Subject: [RFC PATCH 0/4] Implement a PSCI SYSTEM_RESET2 reboot-mode driver

PSCI implements a restart notifier for architectural defined resets.
The SYSTEM_RESET2 call allows vendor firmware to define additional reset
types which could be mapped to the reboot reason.

Implement a driver to wire the reboot-mode framework to make vendor
SYSTEM_RESET2 calls on reboot.

This is a continuation from https://lore.kernel.org/all/4a679542-b48d-7e11-f33a-63535a5c68cb@quicinc.com/

Elliot Berman (4):
  power: reset: reboot-mode: Allow magic to be 0
  power: reset: reboot-mode: Wire reboot_mode enum to magic
  dt-bindings: power: reset: Document arm,psci-vendor-reset
  power: reset: Implement a PSCI SYSTEM_RESET2 reboot-mode driver

 .../power/reset/arm,psci-vendor-reset.yaml    | 35 +++++++++++++
 MAINTAINERS                                   |  2 +
 drivers/firmware/psci/psci.c                  |  9 ++++
 drivers/power/reset/Kconfig                   |  9 ++++
 drivers/power/reset/Makefile                  |  1 +
 drivers/power/reset/psci-vendor-reset.c       | 49 +++++++++++++++++++
 drivers/power/reset/reboot-mode.c             | 44 ++++++++++++-----
 include/linux/psci.h                          |  2 +
 8 files changed, 139 insertions(+), 12 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/power/reset/arm,psci-vendor-reset.yaml
 create mode 100644 drivers/power/reset/psci-vendor-reset.c


base-commit: 6eaae198076080886b9e7d57f4ae06fa782f90ef
-- 
2.41.0