diff options
Diffstat (limited to 'drivers/dma/pch_dma.c')
| -rw-r--r-- | drivers/dma/pch_dma.c | 42 |
1 files changed, 12 insertions, 30 deletions
diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c index a3b0b4c56a19..1da04112fcdb 100644 --- a/drivers/dma/pch_dma.c +++ b/drivers/dma/pch_dma.c @@ -670,9 +670,9 @@ static int pd_device_terminate_all(struct dma_chan *chan) return 0; } -static void pdc_tasklet(unsigned long data) +static void pdc_tasklet(struct tasklet_struct *t) { - struct pch_dma_chan *pd_chan = (struct pch_dma_chan *)data; + struct pch_dma_chan *pd_chan = from_tasklet(pd_chan, t, tasklet); unsigned long flags; if (!pdc_is_idle(pd_chan)) { @@ -735,8 +735,7 @@ static irqreturn_t pd_irq(int irq, void *devid) return ret0 | ret2; } -#ifdef CONFIG_PM -static void pch_dma_save_regs(struct pch_dma *pd) +static void __maybe_unused pch_dma_save_regs(struct pch_dma *pd) { struct pch_dma_chan *pd_chan; struct dma_chan *chan, *_c; @@ -759,7 +758,7 @@ static void pch_dma_save_regs(struct pch_dma *pd) } } -static void pch_dma_restore_regs(struct pch_dma *pd) +static void __maybe_unused pch_dma_restore_regs(struct pch_dma *pd) { struct pch_dma_chan *pd_chan; struct dma_chan *chan, *_c; @@ -782,40 +781,25 @@ static void pch_dma_restore_regs(struct pch_dma *pd) } } -static int pch_dma_suspend(struct pci_dev *pdev, pm_message_t state) +static int __maybe_unused pch_dma_suspend(struct device *dev) { - struct pch_dma *pd = pci_get_drvdata(pdev); + struct pch_dma *pd = dev_get_drvdata(dev); if (pd) pch_dma_save_regs(pd); - pci_save_state(pdev); - pci_disable_device(pdev); - pci_set_power_state(pdev, pci_choose_state(pdev, state)); - return 0; } -static int pch_dma_resume(struct pci_dev *pdev) +static int __maybe_unused pch_dma_resume(struct device *dev) { - struct pch_dma *pd = pci_get_drvdata(pdev); - int err; - - pci_set_power_state(pdev, PCI_D0); - pci_restore_state(pdev); - - err = pci_enable_device(pdev); - if (err) { - dev_dbg(&pdev->dev, "failed to enable device\n"); - return err; - } + struct pch_dma *pd = dev_get_drvdata(dev); if (pd) pch_dma_restore_regs(pd); return 0; } -#endif static int pch_dma_probe(struct pci_dev *pdev, const struct pci_device_id *id) @@ -898,8 +882,7 @@ static int pch_dma_probe(struct pci_dev *pdev, INIT_LIST_HEAD(&pd_chan->queue); INIT_LIST_HEAD(&pd_chan->free_list); - tasklet_init(&pd_chan->tasklet, pdc_tasklet, - (unsigned long)pd_chan); + tasklet_setup(&pd_chan->tasklet, pdc_tasklet); list_add_tail(&pd_chan->chan.device_node, &pd->dma.channels); } @@ -993,15 +976,14 @@ static const struct pci_device_id pch_dma_id_table[] = { { 0, }, }; +static SIMPLE_DEV_PM_OPS(pch_dma_pm_ops, pch_dma_suspend, pch_dma_resume); + static struct pci_driver pch_dma_driver = { .name = DRV_NAME, .id_table = pch_dma_id_table, .probe = pch_dma_probe, .remove = pch_dma_remove, -#ifdef CONFIG_PM - .suspend = pch_dma_suspend, - .resume = pch_dma_resume, -#endif + .driver.pm = &pch_dma_pm_ops, }; module_pci_driver(pch_dma_driver); |