ufs-qcom: add support for Qualcomm Technologies Inc platforms
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>
diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
index 6e07b2a..8a1f4b3 100644
--- a/drivers/scsi/ufs/Kconfig
+++ b/drivers/scsi/ufs/Kconfig
@@ -70,3 +70,16 @@
If you have a controller with this interface, say Y or M here.
If unsure, say N.
+
+config SCSI_UFS_QCOM
+ bool "QCOM specific hooks to UFS controller platform driver"
+ depends on SCSI_UFSHCD_PLATFORM && ARCH_MSM
+ select PHY_QCOM_UFS
+ help
+ This selects the QCOM specific additions to UFSHCD platform driver.
+ UFS host on QCOM needs some vendor specific configuration before
+ accessing the hardware which includes PHY configuration and vendor
+ specific registers.
+
+ Select this if you have UFS controller on QCOM chipset.
+ If unsure, say N.