mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-02 15:18:19 +00:00
Code Issues Releases Wiki Activity

scsi: ufs: Select INITIAL ADAPT type for HS Gear4

Browse source 
ADAPT is added specifically for HS Gear4 mode only. Select INITIAL ADAPT
before power mode change to G4 and select NO ADAPT before switch to non-G4
modes.

[mkp: fixed typo in header file]

Link: https://lore.kernel.org/r/1581485910-8307-3-git-send-email-cang@codeaurora.org
Signed-off-by: Can Guo <cang@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Can Guo 2020-02-11 21:38:29 -08:00 committed by Martin K. Petersen
parent 984eaac133
commit 518b32f1dd
2 changed files with 21 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
drivers/scsi/ufs/ufs-qcom.c
View file

@ -896,6 +896,20 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
if (!ufshcd_is_hs_mode(&hba->pwr_info) &&
ufshcd_is_hs_mode(dev_req_params))
ufs_qcom_dev_ref_clk_ctrl(host, true);
if (host->hw_ver.major >= 0x4) {
if (dev_req_params->gear_tx == UFS_HS_G4) {
/* INITIAL ADAPT */
ufshcd_dme_set(hba,
UIC_ARG_MIB(PA_TXHSADAPTTYPE),
PA_INITIAL_ADAPT);
} else {
/* NO ADAPT */
ufshcd_dme_set(hba,
UIC_ARG_MIB(PA_TXHSADAPTTYPE),
PA_NO_ADAPT);
}
}
break;
case POST_CHANGE:
if (ufs_qcom_cfg_timers(hba, dev_req_params->gear_rx,

7
drivers/scsi/ufs/unipro.h
View file

@ -146,6 +146,12 @@
#define PA_SLEEPNOCONFIGTIME 0x15A2
#define PA_STALLNOCONFIGTIME 0x15A3
#define PA_SAVECONFIGTIME 0x15A4
#define PA_TXHSADAPTTYPE 0x15D4
/* Adpat type for PA_TXHSADAPTTYPE attribute */
#define PA_REFRESH_ADAPT 0x00
#define PA_INITIAL_ADAPT 0x01
#define PA_NO_ADAPT 0x03
#define PA_TACTIVATE_TIME_UNIT_US 10
#define PA_HIBERN8_TIME_UNIT_US 100
@ -203,6 +209,7 @@ enum ufs_hs_gear_tag {
UFS_HS_G1, /* HS Gear 1 (default for reset) */
UFS_HS_G2, /* HS Gear 2 */
UFS_HS_G3, /* HS Gear 3 */
UFS_HS_G4, /* HS Gear 4 */
};
enum ufs_unipro_ver {