[v5,0/7] Several changes for UFS WriteBooster

Message

Bean Huo Dec. 15, 2020, 11:05 p.m. UTC

From: Bean Huo <[e-mail]>

Changelog:
V--V5:
  1. Add patch "docs: ABI: Add wb_on documentation for UFS sysfs"
  2. Unify WB related flags with wb_* prefix (Stanley Chu)
  3. Delete d_ext_ufs_feature_sup (Stanley Chu)
  4. Incorporate Stanley's suggestion to patch 6/7
  5. Replace scnprintf() with sysfs_emit() in 1/7 (Greg KH)

v3--v4:
  1. Rebase patch on 5.11/scsi-staging
  2. Add WB cleanup patches 3/6, 4/6 adn 5/6

v2--v3:
  1. Change multi-line comments style in patch 1/3 (Can Guo)

v1--v2:
  1. Take is_hibern8_wb_flush checkup out from function
     ufshcd_wb_need_flush() in patch 2/3
  2. Add UFSHCD_CAP_CLK_SCALING checkup in patch 1/3. that means
     only for the platform, which doesn't support UFSHCD_CAP_CLK_SCALING,
     can control WB through "wb_on".

Bean Huo (7):
  scsi: ufs: Add "wb_on" sysfs node to control WB on/off
  docs: ABI: Add wb_on documentation for UFS sysfs
  scsi: ufs: Changes comment in the function ufshcd_wb_probe()
  scsi: ufs: Remove two WB related fields from struct ufs_dev_info
  scsi: ufs: Group UFS WB related flags to struct ufs_dev_info
  scsi: ufs: Cleanup WB buffer flush toggle implementation
  scsi: ufs: Keep device active mode only
    fWriteBoosterBufferFlushDuringHibernate == 1

 Documentation/ABI/testing/sysfs-driver-ufs |   8 ++
 drivers/scsi/ufs/ufs-sysfs.c               |  41 +++++++
 drivers/scsi/ufs/ufs.h                     |  30 ++---
 drivers/scsi/ufs/ufshcd.c                  | 124 +++++++++------------
 drivers/scsi/ufs/ufshcd.h                  |   6 +-
 5 files changed, 122 insertions(+), 87 deletions(-)