From c8169580e924a1d2821e0a2e228c674e0eaa091f Mon Sep 17 00:00:00 2001 From: Raymond Tan Date: Fri, 18 Oct 2019 16:21:30 +0300 Subject: spi: dw-pci: Add runtime power management support Implement pm_runtime hooks at pci driver. Signed-off-by: Raymond Tan [jarkko.nikula@linux.intel.com: Forward ported on top of commit 1e6959832510 ("spi: dw: Add basic runtime PM support")] Signed-off-by: Jarkko Nikula Link: https://lore.kernel.org/r/20191018132131.31608-2-jarkko.nikula@linux.intel.com Signed-off-by: Mark Brown --- drivers/spi/spi-dw-pci.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/spi/spi-dw-pci.c') diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c index 7ab53f4d04b9..1cddecea2715 100644 --- a/drivers/spi/spi-dw-pci.c +++ b/drivers/spi/spi-dw-pci.c @@ -7,6 +7,7 @@ #include #include +#include #include #include #include @@ -101,6 +102,11 @@ static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) dev_info(&pdev->dev, "found PCI SPI controller(ID: %04x:%04x)\n", pdev->vendor, pdev->device); + pm_runtime_set_autosuspend_delay(&pdev->dev, 1000); + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_put_autosuspend(&pdev->dev); + pm_runtime_allow(&pdev->dev); + return 0; } @@ -108,6 +114,9 @@ static void spi_pci_remove(struct pci_dev *pdev) { struct dw_spi *dws = pci_get_drvdata(pdev); + pm_runtime_forbid(&pdev->dev); + pm_runtime_get_noresume(&pdev->dev); + dw_spi_remove_host(dws); pci_free_irq_vectors(pdev); } -- cgit v1.2.3