diff options
| author | Krzysztof Wilczyński <kw@linux.com> | 2020-07-31 00:08:48 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2020-09-29 22:21:50 +0300 |
| commit | 3789af9a13e5561738c0f2114e3a5e22c843ca3e (patch) | |
| tree | 98bccb80f127447c64da4a69e0ce410c26d4d26e /drivers/pci/pci.c | |
| parent | a5d02e901e6dadd7dd60fafb6448a822a47430ff (diff) | |
| download | linux-3789af9a13e5561738c0f2114e3a5e22c843ca3e.tar.xz | |
PCI/PM: Rename pci_dev.d3_delay to d3hot_delay
PCI devices support two variants of the D3 power state: D3hot (main power
present) D3cold (main power removed). Previously struct pci_dev contained:
unsigned int d3_delay; /* D3->D0 transition time in ms */
unsigned int d3cold_delay; /* D3cold->D0 transition time in ms */
"d3_delay" refers specifically to the D3hot state. Rename it to
"d3hot_delay" to avoid ambiguity and align with the ACPI "_DSM for
Specifying Device Readiness Durations" in the PCI Firmware spec r3.2,
sec 4.6.9.
There is no change to the functionality.
Link: https://lore.kernel.org/r/20200730210848.1578826-1-kw@linux.com
Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index a458c46d7e39..c4a26532a447 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -49,7 +49,7 @@ EXPORT_SYMBOL(isa_dma_bridge_buggy); int pci_pci_problems; EXPORT_SYMBOL(pci_pci_problems); -unsigned int pci_pm_d3_delay; +unsigned int pci_pm_d3hot_delay; static void pci_pme_list_scan(struct work_struct *work); @@ -66,10 +66,10 @@ struct pci_pme_device { static void pci_dev_d3_sleep(struct pci_dev *dev) { - unsigned int delay = dev->d3_delay; + unsigned int delay = dev->d3hot_delay; - if (delay < pci_pm_d3_delay) - delay = pci_pm_d3_delay; + if (delay < pci_pm_d3hot_delay) + delay = pci_pm_d3hot_delay; if (delay) msleep(delay); @@ -3013,7 +3013,7 @@ void pci_pm_init(struct pci_dev *dev) } dev->pm_cap = pm; - dev->d3_delay = PCI_PM_D3_WAIT; + dev->d3hot_delay = PCI_PM_D3HOT_WAIT; dev->d3cold_delay = PCI_PM_D3COLD_WAIT; dev->bridge_d3 = pci_bridge_d3_possible(dev); dev->d3cold_allowed = true; @@ -3038,7 +3038,7 @@ void pci_pm_init(struct pci_dev *dev) (pmc & PCI_PM_CAP_PME_D0) ? " D0" : "", (pmc & PCI_PM_CAP_PME_D1) ? " D1" : "", (pmc & PCI_PM_CAP_PME_D2) ? " D2" : "", - (pmc & PCI_PM_CAP_PME_D3) ? " D3hot" : "", + (pmc & PCI_PM_CAP_PME_D3hot) ? " D3hot" : "", (pmc & PCI_PM_CAP_PME_D3cold) ? " D3cold" : ""); dev->pme_support = pmc >> PCI_PM_CAP_PME_SHIFT; dev->pme_poll = true; @@ -4621,7 +4621,7 @@ static int pci_af_flr(struct pci_dev *dev, int probe) * * NOTE: This causes the caller to sleep for twice the device power transition * cooldown period, which for the D0->D3hot and D3hot->D0 transitions is 10 ms - * by default (i.e. unless the @dev's d3_delay field has a different value). + * by default (i.e. unless the @dev's d3hot_delay field has a different value). * Moreover, only devices in D0 can be reset by this function. */ static int pci_pm_reset(struct pci_dev *dev, int probe) |