[PATCH 1/2] firmware: PSCI: Fix PSCI support for OF live trees

[Tom Warren]

No worries, I can fix it when I add them to u-boot-tegra. I have some other patches to add & generate a PR, I'll get it out by EOW.  TomR - do you want me to take this patch as well as the ARM: tegra: patch in my PR, or do you want Jon's first patch to go thru a different repo?

Tom
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-----Original Message-----
From: Jonathan Hunter <jonathanh at nvidia.com> 
Sent: Thursday, June 18, 2020 8:47 AM
To: Tom Rini <trini at konsulko.com>; Tom Warren <TWarren at nvidia.com>
Cc: Stephen Warren <swarren at nvidia.com>; Thierry Reding <treding at nvidia.com>; Peter Robinson <pbrobinson at redhat.com>; Heinrich Schuchardt <xypron.glpk at gmx.de>; u-boot at lists.denx.de
Subject: Re: [PATCH 1/2] firmware: PSCI: Fix PSCI support for OF live trees


On 18/06/2020 12:54, Jon Hunter wrote:
> When CONFIG_OF_LIVE is enabled, dev_of_offset() cannot be used and if 
> used returns an invalid offset. This causes the call to
> fdt_stringlist_get() in the psci_probe() to fail to read the 'method'
> property from the PSCI node for the device and hence prevents PSCI 
> from working. Fix this by using the ofnode_read_string() API instead 
> of the fdt_stringlist_get() because this will handle reading the 
> property both when CONFIG_OF_LIVE is enabled or disabled.
> 
> Due to the above problem and since commit 81ea00838c68 ("efi_loader:
> PSCI reset and shutdown") was added, the EFI system reset has been 
> broken for Tegra210 and Tegra196 platforms. This also fixes the EFI 
> system reset for these Tegra platforms.

Oops, just spotted the above typo. Should be Tegra186 and not Tegra196 (which does not exist!). I can correct that.

Jon

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