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power_mgmt: Add device power management support

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Added device power management hook infrastructure. Added
DEVICE_INIT_PM and SYS_INIT_PM macros that creates device
structures with the supplied device_ops structure containing
the hooks.

Added example support in gpio_dw driver.  Updated the sample
app and tested using LPS and Device Suspend Only policies.

Change-Id: I2fe347f8d8fd1041d8318e02738990deb8c5d68e
Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
This commit is contained in:
Ramesh Thomas 2016-03-23 23:23:10 -07:00 • committed by Anas Nashif
commit 4104bbfb08
15 changed files with 276 additions and 144 deletions
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18
drivers/gpio/gpio_k64.c
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@ -221,22 +221,6 @@ static int gpio_k64_disable_callback(struct device *dev,
}
static int gpio_k64_suspend_port(struct device *dev)
{
ARG_UNUSED(dev);
return -ENOTSUP;
}
static int gpio_k64_resume_port(struct device *dev)
{
ARG_UNUSED(dev);
return -ENOTSUP;
}
/**
* @brief Handler for port interrupts
* @param dev Pointer to device structure for driver instance
@ -290,8 +274,6 @@ static struct gpio_driver_api gpio_k64_drv_api_funcs = {
.set_callback = gpio_k64_set_callback,
.enable_callback = gpio_k64_enable_callback,
.disable_callback = gpio_k64_disable_callback,
.suspend = gpio_k64_suspend_port,
.resume = gpio_k64_resume_port,
};