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| author | Dmitry Osipenko <digetx@gmail.com> | 2021-08-03 01:13:35 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2021-08-11 12:55:56 +0300 |
| commit | 59c6fceb2ecc382c3d20508a235b539bf23af1f0 (patch) | |
| tree | 580fb68e7c13544c0ccd554a8a88c588fdccd140 /drivers/soc/tegra/fuse/fuse-tegra.c | |
| parent | 24a15252ff049ca76bdcc51dd445503b88b2c6df (diff) | |
| download | linux-59c6fceb2ecc382c3d20508a235b539bf23af1f0.tar.xz | |
soc/tegra: fuse: Enable fuse clock on suspend for Tegra124
The FUSE clock should be enabled during suspend on Tegra124. Currently
clk driver enables it on all SoCs, but FUSE may require a higher core
voltage on Tegra30 while enabled. Move the quirk into the FUSE driver
and make it specific to Tegra124.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/soc/tegra/fuse/fuse-tegra.c')
| -rw-r--r-- | drivers/soc/tegra/fuse/fuse-tegra.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c index 747237865aff..f2151815db58 100644 --- a/drivers/soc/tegra/fuse/fuse-tegra.c +++ b/drivers/soc/tegra/fuse/fuse-tegra.c @@ -275,9 +275,38 @@ static int __maybe_unused tegra_fuse_runtime_suspend(struct device *dev) return 0; } +static int __maybe_unused tegra_fuse_suspend(struct device *dev) +{ + int ret; + + /* + * Critical for RAM re-repair operation, which must occur on resume + * from LP1 system suspend and as part of CCPLEX cluster switching. + */ + if (fuse->soc->clk_suspend_on) + ret = pm_runtime_resume_and_get(dev); + else + ret = pm_runtime_force_suspend(dev); + + return ret; +} + +static int __maybe_unused tegra_fuse_resume(struct device *dev) +{ + int ret = 0; + + if (fuse->soc->clk_suspend_on) + pm_runtime_put(dev); + else + ret = pm_runtime_force_resume(dev); + + return ret; +} + static const struct dev_pm_ops tegra_fuse_pm = { SET_RUNTIME_PM_OPS(tegra_fuse_runtime_suspend, tegra_fuse_runtime_resume, NULL) + SET_SYSTEM_SLEEP_PM_OPS(tegra_fuse_suspend, tegra_fuse_resume) }; static struct platform_driver tegra_fuse_driver = { |