** Description changed:
[Impact]
+ Realtek USB cardreader consumes more than 1 Watt during long idle if it's not
suspended. And it's runtime PM functions are available after v4.20.
[Fix]
-
+ To avoid conflicts, have to backport some patches for mmc core.
[Test]
+ Note: Inside () are the previous value (non-patch)
+ Sort idle: 7.76W (7.88)
+ Long idle: 4.658W (5.79)
+ S3: 0.5W (0.5)
+ S5: 0.20W (0.208)
[Regression Potential]
+ Low, most commits are for rtsx_usb_{sdmmc,ms} and are all small changes.
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https://bugs.launchpad.net/bugs/1811337
Title:
To reduce the Realtek USB cardreader power consumption
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