linux-kernel - [PATCH v3 0/2] ARM: at91: add support for secure suspend on sama5d2

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Message-Id: <20220502152219.216758-1-clement.leger@bootlin.com>
Date:   Mon,  2 May 2022 17:22:17 +0200
From:   Clément Léger <clement.leger@...tlin.com>
To:     Russell King <linux@...linux.org.uk>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>
Cc:     Clément Léger <clement.leger@...tlin.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: [PATCH v3 0/2] ARM: at91: add support for secure suspend on sama5d2

Now that OP-TEE support for sama5d2 is more complete, add support to
execute SMC calls and to set suspend mode. This series adds new files
to be able to execute SMC calls targeting OP-TEE secure monitor. Then
secure suspend support is added and uses these new functions.

---
Changes in v3:
 - Move warning for standby in sama5d2_pm_init()
 - Remove missleading message in ATMEL_SECURE_PM help

Changes in v2:
 - Add suspend mode SMC in already existing secure support

Clément Léger (2):
  ARM: at91: add code to handle secure calls
  ARM: at91: pm: add support for sama5d2 secure suspend

 arch/arm/mach-at91/Kconfig      | 11 +++++++-
 arch/arm/mach-at91/Makefile     |  2 +-
 arch/arm/mach-at91/pm.c         | 36 ++++++++++++++++++++++++++
 arch/arm/mach-at91/sam_secure.c | 46 +++++++++++++++++++++++++++++++++
 arch/arm/mach-at91/sam_secure.h | 18 +++++++++++++
 arch/arm/mach-at91/sama5.c      |  2 ++
 6 files changed, 113 insertions(+), 2 deletions(-)
 create mode 100644 arch/arm/mach-at91/sam_secure.c
 create mode 100644 arch/arm/mach-at91/sam_secure.h

-- 
2.34.1