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| author | Rob Clark <robdclark@chromium.org> | 2021-12-06 09:13:49 -0800 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2021-12-06 09:14:28 -0800 |
| commit | 83b965d118cbab1dbdfffdff8cabc8c1cfd183c6 (patch) | |
| tree | f46a8f6d854b05a47311125f6fd6b6081e79557a /drivers/ata/libahci.c | |
| parent | fee32807633395e666f0951d6b7b6546e9b76c3d (diff) | |
| parent | c305ae99dfd4d0fe70c7fdf13ef5f7650a804ea7 (diff) | |
| download | linux-83b965d118cbab1dbdfffdff8cabc8c1cfd183c6.tar.gz linux-83b965d118cbab1dbdfffdff8cabc8c1cfd183c6.tar.bz2 linux-83b965d118cbab1dbdfffdff8cabc8c1cfd183c6.zip | |
Merge remote-tracking branch 'drm/drm-next' into msm-next-staging
Backmerge drm-next to pull in:
8f59ee9a570c ("drm/msm/dsi: Adjust probe order")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/ata/libahci.c')
| -rw-r--r-- | drivers/ata/libahci.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 8a6835bfd18a..f76b8418e6fb 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -2323,6 +2323,18 @@ int ahci_port_resume(struct ata_port *ap) EXPORT_SYMBOL_GPL(ahci_port_resume); #ifdef CONFIG_PM +static void ahci_handle_s2idle(struct ata_port *ap) +{ + void __iomem *port_mmio = ahci_port_base(ap); + u32 devslp; + + if (pm_suspend_via_firmware()) + return; + devslp = readl(port_mmio + PORT_DEVSLP); + if ((devslp & PORT_DEVSLP_ADSE)) + ata_msleep(ap, devslp_idle_timeout); +} + static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg) { const char *emsg = NULL; @@ -2336,6 +2348,9 @@ static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg) ata_port_freeze(ap); } + if (acpi_storage_d3(ap->host->dev)) + ahci_handle_s2idle(ap); + ahci_rpm_put_port(ap); return rc; } |