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https://github.com/edk2-porting/linux-next.git
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9a9a369d61
This deploys runtime and system PM in the KXSD9 driver: - Use the force_runtime_suspend/resume callbacks as system PM operations. - Add buffer prepare/unprepare callbacks to grab the runtime PM while we're using buffered reads and put get/put_autosuspend in these. - Insert get/put_autosuspend calls anywhere the IO is used from the raw read/write callbacks. - Move the fullscale setting to be cached in the state container so we can restore it properly when coming back from system/runtime suspend. - Set the autosuspend delay to two orders of magnitude that of the sensor start-up time (20ms) so we will autosuspend after 2s. - Register the callbacks in both the SPI and I2C subdrivers. Tested with the I2C KXSD9 on the Qualcomm APQ8060 Dragonboard. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
13 lines
309 B
C
13 lines
309 B
C
#include <linux/device.h>
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#include <linux/kernel.h>
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#define KXSD9_STATE_RX_SIZE 2
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#define KXSD9_STATE_TX_SIZE 2
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int kxsd9_common_probe(struct device *dev,
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struct regmap *map,
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const char *name);
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int kxsd9_common_remove(struct device *dev);
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extern const struct dev_pm_ops kxsd9_dev_pm_ops;
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