diff options
| author | Subhash Jadavani <subhashj@codeaurora.org> | 2015-07-14 17:39:27 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 11:00:21 -0700 |
| commit | dc63550fa391d4f15453fdc7e7db6f50a2383322 (patch) | |
| tree | 199623bbf4696afc4215019eb3c53b2949def777 | |
| parent | ae27e5f46ae169fb7fa7294ab7cb37f928b0ffa0 (diff) | |
scsi: ufs-qcom: don't disable host PHY ref_clk during aggressive gating
Enabling & disabling host PHY ref_clk generally may have high latencies
hence don't disable them during aggresive clock gating otherwise it could
affect the UFS performance badly.
Change-Id: I1741c75a6295c7c0b0d77ff578ab977213dcc484
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
| -rw-r--r-- | drivers/scsi/ufs/ufs-qcom.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c index 284a7397e558..9ae617a3d16c 100644 --- a/drivers/scsi/ufs/ufs-qcom.c +++ b/drivers/scsi/ufs/ufs-qcom.c @@ -1284,8 +1284,9 @@ static int ufs_qcom_setup_clocks(struct ufs_hba *hba, bool on, /* M-PHY RMMI interface clocks can be turned off */ ufs_qcom_phy_disable_iface_clk(host->generic_phy); if (!ufs_qcom_is_link_active(hba)) { - /* turn off UFS local PHY ref_clk */ - ufs_qcom_phy_disable_ref_clk(host->generic_phy); + if (!is_gating_context) + /* turn off UFS local PHY ref_clk */ + ufs_qcom_phy_disable_ref_clk(host->generic_phy); /* disable device ref_clk */ ufs_qcom_dev_ref_clk_ctrl(host, false); } |