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scsi: ufs-qcom: phy/hcd: Refactoring phy clock handling

Forráskód böngészése 
Add phy clock enable code to phy_power_on/off callbacks, and
remove explicit calls to enable these phy clocks from the
ufs-qcom hcd driver.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Vivek Gautam
2016-11-08 15:37:48 +05:30
committed by Martin K. Petersen
szülő 9c7ce698ba
commit feb3d79800
3 fájl változott, egészen pontosan 24 új sor hozzáadva és 51 régi sor törölve
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21
drivers/scsi/ufs/ufs-qcom.c
Fájl megtekintése

@@ -1114,17 +1114,8 @@ static int ufs_qcom_setup_clocks(struct ufs_hba *hba, bool on,
return 0;
if (on && (status == POST_CHANGE)) {
err = ufs_qcom_phy_enable_iface_clk(host->generic_phy);
if (err)
goto out;
phy_power_on(host->generic_phy);
err = ufs_qcom_phy_enable_ref_clk(host->generic_phy);
if (err) {
dev_err(hba->dev, "%s enable phy ref clock failed, err=%d\n",
__func__, err);
ufs_qcom_phy_disable_iface_clk(host->generic_phy);
goto out;
}
/* enable the device ref clock for HS mode*/
if (ufshcd_is_hs_mode(&hba->pwr_info))
ufs_qcom_dev_ref_clk_ctrl(host, true);
@@ -1133,13 +1124,14 @@ static int ufs_qcom_setup_clocks(struct ufs_hba *hba, bool on,
ufs_qcom_update_bus_bw_vote(host);
} else if (!on && (status == PRE_CHANGE)) {
/* 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 (!ufs_qcom_is_link_active(hba)) {
/* disable device ref_clk */
ufs_qcom_dev_ref_clk_ctrl(host, false);
/* powering off PHY during aggressive clk gating */
phy_power_off(host->generic_phy);
}
vote = host->bus_vote.min_bw_vote;
}
@@ -1148,7 +1140,6 @@ static int ufs_qcom_setup_clocks(struct ufs_hba *hba, bool on,
dev_err(hba->dev, "%s: set bus vote failed %d\n",
__func__, err);
out:
return err;
}