diff options
Diffstat (limited to 'drivers/pci/pcie/pme.c')
-rw-r--r-- | drivers/pci/pcie/pme.c | 27 |
1 files changed, 4 insertions, 23 deletions
diff --git a/drivers/pci/pcie/pme.c b/drivers/pci/pcie/pme.c index 2f3c90407227..073f0308c6b2 100644 --- a/drivers/pci/pcie/pme.c +++ b/drivers/pci/pcie/pme.c | |||
@@ -26,9 +26,6 @@ | |||
26 | #include "../pci.h" | 26 | #include "../pci.h" |
27 | #include "portdrv.h" | 27 | #include "portdrv.h" |
28 | 28 | ||
29 | #define PCI_EXP_RTSTA_PME 0x10000 /* PME status */ | ||
30 | #define PCI_EXP_RTSTA_PENDING 0x20000 /* PME pending */ | ||
31 | |||
32 | /* | 29 | /* |
33 | * If this switch is set, MSI will not be used for PCIe PME signaling. This | 30 | * If this switch is set, MSI will not be used for PCIe PME signaling. This |
34 | * causes the PCIe port driver to use INTx interrupts only, but it turns out | 31 | * causes the PCIe port driver to use INTx interrupts only, but it turns out |
@@ -74,22 +71,6 @@ void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable) | |||
74 | } | 71 | } |
75 | 72 | ||
76 | /** | 73 | /** |
77 | * pcie_pme_clear_status - Clear root port PME interrupt status. | ||
78 | * @dev: PCIe root port or event collector. | ||
79 | */ | ||
80 | static void pcie_pme_clear_status(struct pci_dev *dev) | ||
81 | { | ||
82 | int rtsta_pos; | ||
83 | u32 rtsta; | ||
84 | |||
85 | rtsta_pos = pci_pcie_cap(dev) + PCI_EXP_RTSTA; | ||
86 | |||
87 | pci_read_config_dword(dev, rtsta_pos, &rtsta); | ||
88 | rtsta |= PCI_EXP_RTSTA_PME; | ||
89 | pci_write_config_dword(dev, rtsta_pos, rtsta); | ||
90 | } | ||
91 | |||
92 | /** | ||
93 | * pcie_pme_walk_bus - Scan a PCI bus for devices asserting PME#. | 74 | * pcie_pme_walk_bus - Scan a PCI bus for devices asserting PME#. |
94 | * @bus: PCI bus to scan. | 75 | * @bus: PCI bus to scan. |
95 | * | 76 | * |
@@ -253,7 +234,7 @@ static void pcie_pme_work_fn(struct work_struct *work) | |||
253 | * Clear PME status of the port. If there are other | 234 | * Clear PME status of the port. If there are other |
254 | * pending PMEs, the status will be set again. | 235 | * pending PMEs, the status will be set again. |
255 | */ | 236 | */ |
256 | pcie_pme_clear_status(port); | 237 | pcie_clear_root_pme_status(port); |
257 | 238 | ||
258 | spin_unlock_irq(&data->lock); | 239 | spin_unlock_irq(&data->lock); |
259 | pcie_pme_handle_request(port, rtsta & 0xffff); | 240 | pcie_pme_handle_request(port, rtsta & 0xffff); |
@@ -378,7 +359,7 @@ static int pcie_pme_probe(struct pcie_device *srv) | |||
378 | 359 | ||
379 | port = srv->port; | 360 | port = srv->port; |
380 | pcie_pme_interrupt_enable(port, false); | 361 | pcie_pme_interrupt_enable(port, false); |
381 | pcie_pme_clear_status(port); | 362 | pcie_clear_root_pme_status(port); |
382 | 363 | ||
383 | ret = request_irq(srv->irq, pcie_pme_irq, IRQF_SHARED, "PCIe PME", srv); | 364 | ret = request_irq(srv->irq, pcie_pme_irq, IRQF_SHARED, "PCIe PME", srv); |
384 | if (ret) { | 365 | if (ret) { |
@@ -402,7 +383,7 @@ static int pcie_pme_suspend(struct pcie_device *srv) | |||
402 | 383 | ||
403 | spin_lock_irq(&data->lock); | 384 | spin_lock_irq(&data->lock); |
404 | pcie_pme_interrupt_enable(port, false); | 385 | pcie_pme_interrupt_enable(port, false); |
405 | pcie_pme_clear_status(port); | 386 | pcie_clear_root_pme_status(port); |
406 | data->noirq = true; | 387 | data->noirq = true; |
407 | spin_unlock_irq(&data->lock); | 388 | spin_unlock_irq(&data->lock); |
408 | 389 | ||
@@ -422,7 +403,7 @@ static int pcie_pme_resume(struct pcie_device *srv) | |||
422 | 403 | ||
423 | spin_lock_irq(&data->lock); | 404 | spin_lock_irq(&data->lock); |
424 | data->noirq = false; | 405 | data->noirq = false; |
425 | pcie_pme_clear_status(port); | 406 | pcie_clear_root_pme_status(port); |
426 | pcie_pme_interrupt_enable(port, true); | 407 | pcie_pme_interrupt_enable(port, true); |
427 | spin_unlock_irq(&data->lock); | 408 | spin_unlock_irq(&data->lock); |
428 | 409 | ||