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phy: qcom-ufs: add support for 20nm phy

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This change adds a support for a 20nm qcom-ufs phy that is required in
platforms that use ufs-qcom controller.

Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Reviewed-by: Dov Levenglick <dovl@codeaurora.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Yaniv Gardi 2015-01-15 16:32:36 +02:00 • committed by Christoph Hellwig
parent adaafaa393
commit 39e794bff7
5 changed files with 594 additions and 1 deletions
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59
include/linux/phy/phy-qcom-ufs.h Normal file
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/*
* Copyright (c) 2013-2015, Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef PHY_QCOM_UFS_H_
#define PHY_QCOM_UFS_H_
#include "phy.h"
/**
* ufs_qcom_phy_enable_ref_clk() - Enable the phy
* ref clock.
* @phy: reference to a generic phy
*
* returns 0 for success, and non-zero for error.
*/
int ufs_qcom_phy_enable_ref_clk(struct phy *phy);
/**
* ufs_qcom_phy_disable_ref_clk() - Disable the phy
* ref clock.
* @phy: reference to a generic phy.
*/
void ufs_qcom_phy_disable_ref_clk(struct phy *phy);
/**
* ufs_qcom_phy_enable_dev_ref_clk() - Enable the device
* ref clock.
* @phy: reference to a generic phy.
*/
void ufs_qcom_phy_enable_dev_ref_clk(struct phy *phy);
/**
* ufs_qcom_phy_disable_dev_ref_clk() - Disable the device
* ref clock.
* @phy: reference to a generic phy.
*/
void ufs_qcom_phy_disable_dev_ref_clk(struct phy *phy);
int ufs_qcom_phy_enable_iface_clk(struct phy *phy);
void ufs_qcom_phy_disable_iface_clk(struct phy *phy);
int ufs_qcom_phy_start_serdes(struct phy *phy);
int ufs_qcom_phy_set_tx_lane_enable(struct phy *phy, u32 tx_lanes);
int ufs_qcom_phy_calibrate_phy(struct phy *phy, bool is_rate_B);
int ufs_qcom_phy_is_pcs_ready(struct phy *phy);
void ufs_qcom_phy_save_controller_version(struct phy *phy,
u8 major, u16 minor, u16 step);
#endif /* PHY_QCOM_UFS_H_ */