include/linux/phy/phy-qcom-ufs.h

   1 /*
   2  * Copyright (c) 2013-2015, Linux Foundation. All rights reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 and
   6  * only version 2 as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  */
  14
  15 #ifndef PHY_QCOM_UFS_H_
  16 #define PHY_QCOM_UFS_H_
  17
  18 #include "phy.h"
  19
  20 /**
  21  * ufs_qcom_phy_enable_ref_clk() - Enable the phy
  22  * ref clock.
  23  * @phy: reference to a generic phy
  24  *
  25  * returns 0 for success, and non-zero for error.
  26  */
  27 int ufs_qcom_phy_enable_ref_clk(struct phy *phy);
  28
  29 /**
  30  * ufs_qcom_phy_disable_ref_clk() - Disable the phy
  31  * ref clock.
  32  * @phy: reference to a generic phy.
  33  */
  34 void ufs_qcom_phy_disable_ref_clk(struct phy *phy);
  35
  36 /**
  37  * ufs_qcom_phy_enable_dev_ref_clk() - Enable the device
  38  * ref clock.
  39  * @phy: reference to a generic phy.
  40  */
  41 void ufs_qcom_phy_enable_dev_ref_clk(struct phy *phy);
  42
  43 /**
  44  * ufs_qcom_phy_disable_dev_ref_clk() - Disable the device
  45  * ref clock.
  46  * @phy: reference to a generic phy.
  47  */
  48 void ufs_qcom_phy_disable_dev_ref_clk(struct phy *phy);
  49
  50 int ufs_qcom_phy_enable_iface_clk(struct phy *phy);
  51 void ufs_qcom_phy_disable_iface_clk(struct phy *phy);
  52 int ufs_qcom_phy_start_serdes(struct phy *phy);
  53 int ufs_qcom_phy_set_tx_lane_enable(struct phy *phy, u32 tx_lanes);
  54 int ufs_qcom_phy_calibrate_phy(struct phy *phy, bool is_rate_B);
  55 int ufs_qcom_phy_is_pcs_ready(struct phy *phy);
  56 void ufs_qcom_phy_save_controller_version(struct phy *phy,
  57                         u8 major, u16 minor, u16 step);
  58
  59 #endif /* PHY_QCOM_UFS_H_ */