diff options
| author | Raymond Tan <raymond.tan@intel.com> | 2019-10-18 16:21:30 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-10-22 17:57:23 +0100 |
| commit | c8169580e924a1d2821e0a2e228c674e0eaa091f (patch) | |
| tree | 17f6ee05aac396a9bd5b4d4c04e83ff8e3c4dbc4 /drivers/spi | |
| parent | 9c86f12a36479dec06df3e4a4f31cecf8eba0222 (diff) | |
spi: dw-pci: Add runtime power management support
Implement pm_runtime hooks at pci driver.
Signed-off-by: Raymond Tan <raymond.tan@intel.com>
[jarkko.nikula@linux.intel.com: Forward ported on top of
commit 1e6959832510 ("spi: dw: Add basic runtime PM support")]
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Link: https://lore.kernel.org/r/20191018132131.31608-2-jarkko.nikula@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-dw-pci.c | 9 |
1 files changed, 9 insertions, 0 deletions
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 <linux/interrupt.h> #include <linux/pci.h> +#include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/spi/spi.h> #include <linux/module.h> @@ -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); } |