]> www.infradead.org Git - users/dwmw2/linux.git/commit
clk: tegra: Mark fuse clock as critical
authorStephen Warren <swarren@nvidia.com>
Thu, 3 Oct 2019 20:50:30 +0000 (14:50 -0600)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 11 Feb 2020 12:37:14 +0000 (04:37 -0800)
commitd0e381ca8c2deccd6772d943c18247406a8f405c
tree9fe05aada9f7b416983424a4dc1ce6477503c53c
parentfa17a800ac2cca02db95c8389c6b2725535c3805
clk: tegra: Mark fuse clock as critical

commit bf83b96f87ae2abb1e535306ea53608e8de5dfbb upstream.

For a little over a year, U-Boot on Tegra124 has configured the flow
controller to perform automatic RAM re-repair on off->on power
transitions of the CPU rail[1]. This is mandatory for correct operation
of Tegra124. However, RAM re-repair relies on certain clocks, which the
kernel must enable and leave running. The fuse clock is one of those
clocks. Mark this clock as critical so that LP1 power mode (system
suspend) operates correctly.

[1] 3cc7942a4ae5 ARM: tegra: implement RAM repair

Reported-by: Jonathan Hunter <jonathanh@nvidia.com>
Cc: stable@vger.kernel.org
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/clk/tegra/clk-tegra-periph.c