Re: [PATCH V3 0/3] memory: tegra: Restore MC state on system resume

Krzysztof Kozlowski
2026-05-04T17:48:10Z

On Thu, 30 Apr 2026 09:51:59 +0000, Ashish Mhetre wrote:
> The tegra-mc platform driver does not register any dev_pm_ops, so the
> SoC-specific ->resume() is never invoked (e.g. tegra186_mc_resume) on
> system wake. On Tegra186 and later this means MC client Stream-ID
> override registers are not reprogrammed, and clients behind the ARM
> SMMU fault on the first DMA after resume.
>
> Patch 1 makes the SoC-level ->resume() callback return void, since the
> sole implementation never fails. This simplifies the wrapper added in
> the next patch.
>
> [...]

Applied, thanks!

[1/3] memory: tegra: Make ->resume() callback return void
https://git.kernel.org/krzk/linux-mem-ctrl/c/4f42beeb9796e24e8009c46d1a2d676803e5ab24
[2/3] memory: tegra: Wire up system sleep PM ops
https://git.kernel.org/krzk/linux-mem-ctrl/c/2411c8d1e3e09910e94bab0d0a2c071fbc8a9e7b
[3/3] memory: tegra: Restore MC interrupt masks on resume
https://git.kernel.org/krzk/linux-mem-ctrl/c/35934fd08d17071c5ae0e99b95258f61f0cff763

Best regards,
--
Krzysztof Kozlowski <krzk@kernel.org>