On Wed, Sep 21, 2022 at 09:51:59AM -0600, Raul E Rangel wrote: > Device tree already has a mechanism to pass the wake_irq. It does this > by looking for the wakeup-source property and setting the > I2C_CLIENT_WAKE flag. This CL adds the ACPI equivalent. It uses the > ACPI interrupt wake flag to determine if the interrupt can be used to > wake the system. Previously the i2c drivers had to make assumptions and > blindly enable the wake IRQ. This can cause spurious wake events. e.g., > If there is a device with an Active Low interrupt and the device gets > powered off while suspending, the interrupt line will go low since it's > no longer powered and wakes the system. For this reason we should > respect the board designers wishes and honor the wake bit defined on the > interrupt. > > Signed-off-by: Raul E Rangel <rrangel@xxxxxxxxxxxx> > Reviewed-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> > Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> > Acked-by: Wolfram Sang <wsa@xxxxxxxxxx>
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