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author | Paul Walmsley <paul@pwsan.com> | 2010-07-26 16:34:34 -0600 |
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committer | Paul Walmsley <paul@pwsan.com> | 2010-07-26 16:34:34 -0600 |
commit | 564889c1c02698d66db76764ee4e0a5e86903971 (patch) | |
tree | b6bc890e1e7910a96c004b8be5fc825178bd290b /arch/arm/plat-omap/i2c.c | |
parent | 887adeac28a3e354ebb3f9aeca6fc2296c105267 (diff) | |
download | linux-564889c1c02698d66db76764ee4e0a5e86903971.tar.gz linux-564889c1c02698d66db76764ee4e0a5e86903971.tar.bz2 linux-564889c1c02698d66db76764ee4e0a5e86903971.zip |
OMAP: PM constraints: add return values; add requesting device param to omap_pm_set_max_dev_wakeup_lat()
Add return values to the PM constraint functions. This allows the PM
core to provide feedback to the caller if a constraint is not
possible. Update the one upstream user of omap_pm_set_max_mpu_wakeup_lat()
to add a compatibility wrapper, needed until the driver is changed.
Update some of the documentation to conform more closely to kerneldoc style.
Add an additional device parameter to omap_pm_set_max_dev_wakeup_lat()
to identify the device requesting the constraint. This is so repeated calls
to omap_pm_set_max_dev_wakeup_lat() with the same requesting device can
override the device's previously-set constraint. Also, it allows the PM
core to make a decision as to whether or not the constraint should be
satisfied, based on the caller's identity.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Diffstat (limited to 'arch/arm/plat-omap/i2c.c')
-rw-r--r-- | arch/arm/plat-omap/i2c.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/arm/plat-omap/i2c.c b/arch/arm/plat-omap/i2c.c index eec2b4993c69..a5ce4f0aad35 100644 --- a/arch/arm/plat-omap/i2c.c +++ b/arch/arm/plat-omap/i2c.c @@ -138,6 +138,16 @@ static inline int omap1_i2c_add_bus(struct platform_device *pdev, int bus_id) return platform_device_register(pdev); } +/* + * XXX This function is a temporary compatibility wrapper - only + * needed until the I2C driver can be converted to call + * omap_pm_set_max_dev_wakeup_lat() and handle a return code. + */ +static void omap_pm_set_max_mpu_wakeup_lat_compat(struct device *dev, long t) +{ + omap_pm_set_max_mpu_wakeup_lat(dev, t); +} + static inline int omap2_i2c_add_bus(struct platform_device *pdev, int bus_id) { struct resource *res; @@ -168,7 +178,7 @@ static inline int omap2_i2c_add_bus(struct platform_device *pdev, int bus_id) struct omap_i2c_bus_platform_data *pd; pd = pdev->dev.platform_data; - pd->set_mpu_wkup_lat = omap_pm_set_max_mpu_wakeup_lat; + pd->set_mpu_wkup_lat = omap_pm_set_max_mpu_wakeup_lat_compat; } return platform_device_register(pdev); |