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FROMGIT: scsi: ufs: Select INITIAL ADAPT type for HS Gear4

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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>

Bug: 150731199
Change-Id: I6226b91826e139f9b8e99523da4861b01254fea8
(cherry picked from commit 518b32f1dd
https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git 5.7/scsi-queue)
Signed-off-by: Can Guo <cang@codeaurora.org>
This commit is contained in:
Can Guo
2020-02-11 06:06:29 -08:00
committed by Todd Kjos
parent 070d717720
commit 82a1b05eaa
2 changed files with 21 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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

@@ -926,6 +926,20 @@ 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 {