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SubjectRe: [PATCH v9 05/17] ARM: tegra: Propagate error from tegra_idle_lp2_last()
On Thu, Feb 13, 2020 at 02:51:22AM +0300, Dmitry Osipenko wrote:
> Technically cpu_suspend() may fail and it's never good to lose information
> about failure. For example things like cpuidle core could correctly sample
> idling time in the case of failure.
>
> Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
> Tested-by: Peter Geis <pgwipeout@gmail.com>
> Tested-by: Jasper Korten <jja2000@gmail.com>
> Tested-by: David Heidelberg <david@ixit.cz>
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> ---

[ ... ]

> cpu_cluster_pm_enter();
> suspend_cpu_complex();
>
> - cpu_suspend(PHYS_OFFSET - PAGE_OFFSET, &tegra_sleep_cpu);
> + err = cpu_suspend(PHYS_OFFSET - PAGE_OFFSET, &tegra_sleep_cpu);
>
> /*
> * Resume L2 cache if it wasn't re-enabled early during resume,
> @@ -208,6 +210,8 @@ void tegra_idle_lp2_last(void)
>
> restore_cpu_complex();

If the cpu_suspend fails, does restore_cpu_complex() need to be called ?

> cpu_cluster_pm_exit();
> +
> + return err;
> }

[ ... ]

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