diff options
author | 2016-04-11 10:41:07 +0300 | |
---|---|---|
committer | 2016-04-13 08:17:18 +0300 | |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/pwm/pwm-lpss-pci.c | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/pwm/pwm-lpss-pci.c')
-rw-r--r-- | kernel/drivers/pwm/pwm-lpss-pci.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/kernel/drivers/pwm/pwm-lpss-pci.c b/kernel/drivers/pwm/pwm-lpss-pci.c index cf20d2bea..7160e8ab3 100644 --- a/kernel/drivers/pwm/pwm-lpss-pci.c +++ b/kernel/drivers/pwm/pwm-lpss-pci.c @@ -13,6 +13,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/pci.h> +#include <linux/pm_runtime.h> #include "pwm-lpss.h" @@ -33,6 +34,10 @@ static int pwm_lpss_probe_pci(struct pci_dev *pdev, return PTR_ERR(lpwm); pci_set_drvdata(pdev, lpwm); + + pm_runtime_put(&pdev->dev); + pm_runtime_allow(&pdev->dev); + return 0; } @@ -40,14 +45,41 @@ static void pwm_lpss_remove_pci(struct pci_dev *pdev) { struct pwm_lpss_chip *lpwm = pci_get_drvdata(pdev); + pm_runtime_forbid(&pdev->dev); + pm_runtime_get_sync(&pdev->dev); + pwm_lpss_remove(lpwm); } +#ifdef CONFIG_PM +static int pwm_lpss_runtime_suspend_pci(struct device *dev) +{ + /* + * The PCI core will handle transition to D3 automatically. We only + * need to provide runtime PM hooks for that to happen. + */ + return 0; +} + +static int pwm_lpss_runtime_resume_pci(struct device *dev) +{ + return 0; +} +#endif + +static const struct dev_pm_ops pwm_lpss_pci_pm = { + SET_RUNTIME_PM_OPS(pwm_lpss_runtime_suspend_pci, + pwm_lpss_runtime_resume_pci, NULL) +}; + static const struct pci_device_id pwm_lpss_pci_ids[] = { + { PCI_VDEVICE(INTEL, 0x0ac8), (unsigned long)&pwm_lpss_bxt_info}, { PCI_VDEVICE(INTEL, 0x0f08), (unsigned long)&pwm_lpss_byt_info}, { PCI_VDEVICE(INTEL, 0x0f09), (unsigned long)&pwm_lpss_byt_info}, + { PCI_VDEVICE(INTEL, 0x1ac8), (unsigned long)&pwm_lpss_bxt_info}, { PCI_VDEVICE(INTEL, 0x2288), (unsigned long)&pwm_lpss_bsw_info}, { PCI_VDEVICE(INTEL, 0x2289), (unsigned long)&pwm_lpss_bsw_info}, + { PCI_VDEVICE(INTEL, 0x5ac8), (unsigned long)&pwm_lpss_bxt_info}, { }, }; MODULE_DEVICE_TABLE(pci, pwm_lpss_pci_ids); @@ -57,6 +89,9 @@ static struct pci_driver pwm_lpss_driver_pci = { .id_table = pwm_lpss_pci_ids, .probe = pwm_lpss_probe_pci, .remove = pwm_lpss_remove_pci, + .driver = { + .pm = &pwm_lpss_pci_pm, + }, }; module_pci_driver(pwm_lpss_driver_pci); |