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eb4b07dae4
Add support for system sleep and runtime power management. To wake up the device, the SDA line should be held low for at least 33ms while SCL is high. As this is not possible using the i2c API (and not supported by all i2c adapters), a GPIO connected to the SDA line is needed. The GPIO is named "wakeup" and can be specified in a device tree with the "wakeup-gpios" binding. If the wake-up GPIO is not given, disable power management for the device. Entering sleep requires an SMBus byte access, hence power management is also disabled if byte access is not supported by the adapter. Signed-off-by: Vianney le Clément de Saint-Marcq <vianney.leclement@essensium.com> Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Jonathan Cameron <jic23@kernel.org> |
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| Kconfig | ||
| Makefile | ||
| mlx90614.c | ||
| tmp006.c | ||