linux/drivers/phy/phy-core-mipi-dphy.c

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2013 NVIDIA Corporation
 * Copyright (C) 2018 Cadence Design Systems Inc.
 */

#include <linux/errno.h>
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/time64.h>

#include <linux/phy/phy.h>
#include <linux/phy/phy-mipi-dphy.h>

/*
 * Minimum D-PHY timings based on MIPI D-PHY specification. Derived
 * from the valid ranges specified in Section 6.9, Table 14, Page 41
 * of the D-PHY specification (v1.2).
 */
static int phy_mipi_dphy_calc_config(unsigned long pixel_clock,
				     unsigned int bpp,
				     unsigned int lanes,
				     unsigned long long hs_clk_rate,
				     struct phy_configure_opts_mipi_dphy *cfg)
{ … }

int phy_mipi_dphy_get_default_config(unsigned long pixel_clock,
				     unsigned int bpp,
				     unsigned int lanes,
				     struct phy_configure_opts_mipi_dphy *cfg)
{ … }
EXPORT_SYMBOL(…);

int phy_mipi_dphy_get_default_config_for_hsclk(unsigned long long hs_clk_rate,
					       unsigned int lanes,
					       struct phy_configure_opts_mipi_dphy *cfg)
{ … }
EXPORT_SYMBOL(…);

/*
 * Validate D-PHY configuration according to MIPI D-PHY specification
 * (v1.2, Section Section 6.9 "Global Operation Timing Parameters").
 */
int phy_mipi_dphy_config_validate(struct phy_configure_opts_mipi_dphy *cfg)
{ … }
EXPORT_SYMBOL(…);