Commit 7d71490f authored Jul 14, 2015 by Subhash Jadavani

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>

parent ff134c6d

drivers/scsi/ufs/ufs-qcom.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -1283,6 +1283,7 @@ 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)) {
		if (!is_gating_context)
		/* turn off UFS local PHY ref_clk */
		ufs_qcom_phy_disable_ref_clk(host->generic_phy);
		/* disable device ref_clk */