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spi: let SPI masters ignore their children for PM 

Let all SPI masters ignore their children: when it comes
to power management: SPI children have no business doing
keeping their parents awake: they are completely autonomous
devices that just use their parent to talk, and the latter
usecase must be power managed by the host itself on a
per-message basis.

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Linus Walleij 2016-04-11 13:51:03 +02:00 committed by Mark Brown
parent f55532a0c0
commit d7e2ee2570
1 changed files with 1 additions and 0 deletions
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drivers/spi/spi.c
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@ -1764,6 +1764,7 @@ struct spi_master *spi_alloc_master(struct device *dev, unsigned size)
master->num_chipselect = 1;
master->dev.class = &spi_master_class;
master->dev.parent = dev;
pm_suspend_ignore_children(&master->dev, true);
spi_master_set_devdata(master, &master[1]);
return master;