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authorEvan Green <evgreen@chromium.org>2019-03-21 10:17:59 -0700
committerKishon Vijay Abraham I <kishon@ti.com>2019-04-17 14:12:56 +0530
commitc9b589791fc1b37fdca35b621dae62e98e4c95fc (patch)
tree6049f17f5e3586f311376670fd2ff5287e9a0828 /drivers/scsi/ufs
parent12fd5f250db2ad6b292d3a28bc3c0011fe30511f (diff)
downloadblackbird-op-linux-c9b589791fc1b37fdca35b621dae62e98e4c95fc.tar.gz
blackbird-op-linux-c9b589791fc1b37fdca35b621dae62e98e4c95fc.zip
phy: qcom: Utilize UFS reset controller
Move the PHY reset from ufs-qcom into the respective PHYs. This will allow us to merge the two phases of UFS PHY initialization. Signed-off-by: Evan Green <evgreen@chromium.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/scsi/ufs')
-rw-r--r--drivers/scsi/ufs/ufs-qcom.c18
1 files changed, 0 insertions, 18 deletions
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index ab05ef5cfdcd..1c25b1c82314 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -261,11 +261,6 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
if (is_rate_B)
phy_set_mode(phy, PHY_MODE_UFS_HS_B);
- /* Assert PHY reset and apply PHY calibration values */
- ufs_qcom_assert_reset(hba);
- /* provide 1ms delay to let the reset pulse propagate */
- usleep_range(1000, 1100);
-
/* phy initialization - calibrate the phy */
ret = phy_init(phy);
if (ret) {
@@ -274,15 +269,6 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
goto out;
}
- /* De-assert PHY reset and start serdes */
- ufs_qcom_deassert_reset(hba);
-
- /*
- * after reset deassertion, phy will need all ref clocks,
- * voltage, current to settle down before starting serdes.
- */
- usleep_range(1000, 1100);
-
/* power on phy - start serdes and phy's power and clocks */
ret = phy_power_on(phy);
if (ret) {
@@ -296,7 +282,6 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
return 0;
out_disable_phy:
- ufs_qcom_assert_reset(hba);
phy_exit(phy);
out:
return ret;
@@ -559,9 +544,6 @@ static int ufs_qcom_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
*/
ufs_qcom_disable_lane_clks(host);
phy_power_off(phy);
-
- /* Assert PHY soft reset */
- ufs_qcom_assert_reset(hba);
goto out;
}
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