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i2c: designware: Enable async suspend / resume of designware devices 

Mark the designware devices for asynchronous suspend. With this, the
resume for designware devices does not get stuck behind other unrelated
devices (e.g. intel_backlight that takes hundreds of ms to resume,
waiting for its parent devices).

Signed-off-by: Rajat Jain <rajatja@google.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
This commit is contained in:
Rajat Jain 2021-10-25 14:35:29 -07:00 committed by Wolfram Sang
parent ebe82cf92c
commit 7c5b3c158b
1 changed files with 2 additions and 0 deletions
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2
drivers/i2c/busses/i2c-designware-platdrv.c
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@ -293,6 +293,8 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
DPM_FLAG_MAY_SKIP_RESUME);
}
device_enable_async_suspend(&pdev->dev);
/* The code below assumes runtime PM to be disabled. */
WARN_ON(pm_runtime_enabled(&pdev->dev));