[PATCH V3 1/4] clk: tegra: mark fuse clock as critical

Thierry Reding thierry.reding at gmail.com
Wed Jan 8 03:59:49 PST 2020


On Thu, Oct 03, 2019 at 02:50:30PM -0600, Stephen Warren wrote:
> From: Stephen Warren <swarren at nvidia.com>
> 
> 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 rail1]. 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 at nvidia.com>
> Cc: stable at vger.kernel.org
> Signed-off-by: Stephen Warren <swarren at nvidia.com>
> ---
> v3: Added comment to the clock table entry indicating why the clock is
>     critical.
> v2: Set CRITICAL flag on the clock, rather than enabling it in
>     tegra124_init_table[].
> ---
>  drivers/clk/tegra/clk-tegra-periph.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)

Applied to for-5.6/clk, thanks.

Thierry
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