linux/drivers/ufs/host/ufshcd-dwc.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * UFS Host driver for Synopsys Designware Core
 *
 * Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com)
 *
 * Authors: Joao Pinto <[email protected]>
 */

#include <linux/module.h>

#include <ufs/ufshcd.h>
#include <ufs/unipro.h>

#include "ufshcd-dwc.h"
#include "ufshci-dwc.h"

int ufshcd_dwc_dme_set_attrs(struct ufs_hba *hba,
				const struct ufshcd_dme_attr_val *v, int n)
{ … }
EXPORT_SYMBOL(…);

/**
 * ufshcd_dwc_program_clk_div() - program clock divider.
 * @hba: Private Structure pointer
 * @divider_val: clock divider value to be programmed
 *
 */
static void ufshcd_dwc_program_clk_div(struct ufs_hba *hba, u32 divider_val)
{ … }

/**
 * ufshcd_dwc_link_is_up() - check if link is up.
 * @hba: private structure pointer
 *
 * Return: 0 on success, non-zero value on failure.
 */
static int ufshcd_dwc_link_is_up(struct ufs_hba *hba)
{ … }

/**
 * ufshcd_dwc_connection_setup() - configure unipro attributes.
 * @hba: pointer to drivers private data
 *
 * This function configures both the local side (host) and the peer side
 * (device) unipro attributes to establish the connection to application/
 * cport.
 * This function is not required if the hardware is properly configured to
 * have this connection setup on reset. But invoking this function does no
 * harm and should be fine even working with any ufs device.
 *
 * Return: 0 on success non-zero value on failure.
 */
static int ufshcd_dwc_connection_setup(struct ufs_hba *hba)
{ … }

/**
 * ufshcd_dwc_link_startup_notify() - program clock divider.
 * @hba: private structure pointer
 * @status: Callback notify status
 *
 * Return: 0 on success, non-zero value on failure.
 */
int ufshcd_dwc_link_startup_notify(struct ufs_hba *hba,
					enum ufs_notify_change_status status)
{ … }
EXPORT_SYMBOL(…);

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;