diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-11-26 17:19:34 +0000 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2011-01-14 12:37:42 +0100 |
| commit | 4c90aa94f6b3e33f57faaf19ef9819195dff61d3 (patch) | |
| tree | 14eea47a6ca27e03d16514fe397a1cd9fbf4a901 /drivers/mfd | |
| parent | d7b9f3220fd97522559316cdd72778f42ac4de04 (diff) | |
| download | linux-next-4c90aa94f6b3e33f57faaf19ef9819195dff61d3.tar.gz | |
mfd: Provide pm_runtime_no_callbacks flag in cell data
Allow MFD cells to have pm_runtime_no_callbacks() called on them during
registration. This causes the runtime PM framework to ignore them,
allowing use of runtime PM to suspend the device as a whole even if
not all drivers for the MFD can usefully implement runtime PM. For
example, RTCs are likely to run continuously regardless of the power
state of the system.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/mfd-core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index ec99f681e773..d83ad0f141af 100644 --- a/drivers/mfd/mfd-core.c +++ b/drivers/mfd/mfd-core.c @@ -15,6 +15,7 @@ #include <linux/platform_device.h> #include <linux/acpi.h> #include <linux/mfd/core.h> +#include <linux/pm_runtime.h> #include <linux/slab.h> static int mfd_add_device(struct device *parent, int id, @@ -82,6 +83,9 @@ static int mfd_add_device(struct device *parent, int id, if (ret) goto fail_res; + if (cell->pm_runtime_no_callbacks) + pm_runtime_no_callbacks(&pdev->dev); + kfree(res); return 0; |