diff options
| author | David Brownell <david-b@pacbell.net> | 2008-02-06 01:38:10 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-06 10:41:10 -0800 |
| commit | 3c72426f0539c1abce17918d1456f7a6a5a11f90 (patch) | |
| tree | 70f53c62825fc68b613b62f6ed0dcdd0bab736dd /drivers/spi/spi.c | |
| parent | 5ceadd2a2a9cf2768a9baf808abf1ffeedcc4cc4 (diff) | |
| download | linux-3c72426f0539c1abce17918d1456f7a6a5a11f90.tar.bz2 | |
spi core: stop updating dev->power.power_state
Don't update dev->power.power_state any more in the SPI core. The only
reason to update this scheduled-to-be-removed field was to make the
already-removed /sys/devices/.../power/state files work better.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/spi/spi.c')
| -rw-r--r-- | drivers/spi/spi.c | 34 |
1 files changed, 14 insertions, 20 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 5e5d29bb2dd5..1ad12afc6ba0 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -76,39 +76,33 @@ static int spi_uevent(struct device *dev, struct kobj_uevent_env *env) #ifdef CONFIG_PM -/* - * NOTE: the suspend() method for an spi_master controller driver - * should verify that all its child devices are marked as suspended; - * suspend requests delivered through sysfs power/state files don't - * enforce such constraints. - */ static int spi_suspend(struct device *dev, pm_message_t message) { - int value; + int value = 0; struct spi_driver *drv = to_spi_driver(dev->driver); - if (!drv || !drv->suspend) - return 0; - /* suspend will stop irqs and dma; no more i/o */ - value = drv->suspend(to_spi_device(dev), message); - if (value == 0) - dev->power.power_state = message; + if (drv) { + if (drv->suspend) + value = drv->suspend(to_spi_device(dev), message); + else + dev_dbg(dev, "... can't suspend\n"); + } return value; } static int spi_resume(struct device *dev) { - int value; + int value = 0; struct spi_driver *drv = to_spi_driver(dev->driver); - if (!drv || !drv->resume) - return 0; - /* resume may restart the i/o queue */ - value = drv->resume(to_spi_device(dev)); - if (value == 0) - dev->power.power_state = PMSG_ON; + if (drv) { + if (drv->resume) + value = drv->resume(to_spi_device(dev)); + else + dev_dbg(dev, "... can't resume\n"); + } return value; } |