* [PATCH][V3] powerpc/fsl-pci: Add PCI controller ATMU PM support
@ 2012-11-08 2:11 Jia Hongtao
2012-11-25 13:07 ` Kumar Gala
0 siblings, 1 reply; 2+ messages in thread
From: Jia Hongtao @ 2012-11-08 2:11 UTC (permalink / raw)
To: linuxppc-dev, galak; +Cc: B07421, B04825, b38951
Power supply for PCI controller ATMU registers is off when system go to
deep-sleep state. So ATMU registers should be re-setup during PCI
controllers resume from sleep.
Signed-off-by: Jia Hongtao <B38951@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
---
arch/powerpc/sysdev/fsl_pci.c | 37 +++++++++++++++++++++++++++++++++++--
1 files changed, 35 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index ffb93ae..b96885b 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -89,7 +89,7 @@ static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask)
return 0;
}
-static int __init setup_one_atmu(struct ccsr_pci __iomem *pci,
+static int setup_one_atmu(struct ccsr_pci __iomem *pci,
unsigned int index, const struct resource *res,
resource_size_t offset)
{
@@ -126,7 +126,7 @@ static int __init setup_one_atmu(struct ccsr_pci __iomem *pci,
}
/* atmu setup for fsl pci/pcie controller */
-static void __init setup_pci_atmu(struct pci_controller *hose,
+static void setup_pci_atmu(struct pci_controller *hose,
struct resource *rsrc)
{
struct ccsr_pci __iomem *pci;
@@ -902,9 +902,42 @@ static int __devinit fsl_pci_probe(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_PM
+static int fsl_pci_resume(struct device *dev)
+{
+ struct pci_controller *hose;
+ struct resource pci_rsrc;
+
+ hose = pci_find_hose_for_OF_device(dev->of_node);
+ if (!hose)
+ return -ENODEV;
+
+ if (of_address_to_resource(dev->of_node, 0, &pci_rsrc)) {
+ dev_err(dev, "Get pci register base failed.");
+ return -ENODEV;
+ }
+
+ setup_pci_atmu(hose, &pci_rsrc);
+
+ return 0;
+}
+
+static const struct dev_pm_ops pci_pm_ops = {
+ .resume = fsl_pci_resume,
+};
+
+#define PCI_PM_OPS (&pci_pm_ops)
+
+#else
+
+#define PCI_PM_OPS NULL
+
+#endif
+
static struct platform_driver fsl_pci_driver = {
.driver = {
.name = "fsl-pci",
+ .pm = PCI_PM_OPS,
.of_match_table = pci_ids,
},
.probe = fsl_pci_probe,
--
1.7.5.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH][V3] powerpc/fsl-pci: Add PCI controller ATMU PM support
2012-11-08 2:11 [PATCH][V3] powerpc/fsl-pci: Add PCI controller ATMU PM support Jia Hongtao
@ 2012-11-25 13:07 ` Kumar Gala
0 siblings, 0 replies; 2+ messages in thread
From: Kumar Gala @ 2012-11-25 13:07 UTC (permalink / raw)
To: Jia Hongtao; +Cc: B07421, linuxppc-dev, B04825
On Nov 7, 2012, at 8:11 PM, Jia Hongtao wrote:
> Power supply for PCI controller ATMU registers is off when system go to
> deep-sleep state. So ATMU registers should be re-setup during PCI
> controllers resume from sleep.
>
> Signed-off-by: Jia Hongtao <B38951@freescale.com>
> Signed-off-by: Li Yang <leoli@freescale.com>
> ---
> arch/powerpc/sysdev/fsl_pci.c | 37 +++++++++++++++++++++++++++++++++++--
> 1 files changed, 35 insertions(+), 2 deletions(-)
applied to next
- k
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2012-11-25 13:09 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-11-08 2:11 [PATCH][V3] powerpc/fsl-pci: Add PCI controller ATMU PM support Jia Hongtao
2012-11-25 13:07 ` Kumar Gala
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).