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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [SNB BAT IGT] pm_rpm fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93123#c9">Comment # 9</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [SNB BAT IGT] pm_rpm fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93123">bug 93123</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>Can you please apply
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 602eb4223510..916acdd18b15 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -594,8 +594,14 @@ static int pci_raw_set_power_state(struct pci_dev *dev,
pci_power_t state)
if (dev->current_state == state)
return 0;
- if (!dev->pm_cap)
+ dev_info(&dev->dev, "changing power state, from %s [%d] to %s [%d]\n",
+ pci_power_name(dev->current_state) dev->current_state,
+ pci_power_name(state), state);
+
+ if (!dev->pm_cap) {
+ dev_err(&dev->dev, "unable to change power levels (no
pm_cap)\n");
return -EIO;
+ }
if (state < PCI_D0 || state > PCI_D3hot)
return -EINVAL;
and let's confirm that we do get the PCI power change request.</pre>
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