diff options
| author | Subhash Jadavani <subhashj@codeaurora.org> | 2016-08-22 16:43:41 -0700 |
|---|---|---|
| committer | Venkat Gopalakrishnan <venkatg@codeaurora.org> | 2016-08-29 00:16:43 -0700 |
| commit | a58cf90d63b6239ede20c79f57b8ca0c4a27851c (patch) | |
| tree | 133b27159747f6921b2bbb4ea06f7124fc7349d2 | |
| parent | b938e3480e77c692e14e7b60e5edb4fdd98938a9 (diff) | |
scsi: ufs-qcom: skip svs2 configuration for newer controllers
Newer QCOM UFS host controller doesn't need to execute
the special LPM mode configuration when switching to SVS2
mode. This change looks at the host controller version
to bypass this special configuration for newer controller
version.
Change-Id: Ib84663955c0c0db6124819c4c4749e5c347a3495
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
| -rw-r--r-- | drivers/scsi/ufs/ufs-qcom.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c index b8067a11a665..bfa82ca64499 100644 --- a/drivers/scsi/ufs/ufs-qcom.c +++ b/drivers/scsi/ufs/ufs-qcom.c @@ -2087,6 +2087,11 @@ static inline int ufs_qcom_configure_lpm(struct ufs_hba *hba, bool enable) if (!ufs_qcom_cap_svs2(host)) goto out; + if (!((host->hw_ver.major == 0x3) && + (host->hw_ver.minor == 0x0) && + (host->hw_ver.step == 0x0))) + goto out; + /* * The link should be put in hibern8 state before * configuring the PHY to enter/exit SVS2 mode. |