Sometimes, specific information about the UFS controller revision is
required in order to determine certain operations or execute
controller dependent quirks.
In order to avoid reading the controller revision multiple times,
we simply read it once and save this information in internal structure.
Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Reviewed-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
This change adds support for Qualcomm Technologies Inc platforms that
use UFS driver. for example, it adds :
- PM specific operations during hibern8, suspend, resume, clock setup
- qcom-ufs generic phy driver initialization, calibration,
power-on/off sequence, etc.
- UFS Controller specific configuration
- Rate, Gear, Mode negotiation between device and controller
Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Reviewed-by: Dov Levenglick <dovl@codeaurora.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
