linux/drivers/media/platform/sunxi/sun8i-a83t-mipi-csi2/sun8i_a83t_dphy.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright 2020-2022 Bootlin
 * Author: Paul Kocialkowski <[email protected]>
 */

#include <linux/phy/phy.h>
#include <linux/regmap.h>

#include "sun8i_a83t_dphy.h"
#include "sun8i_a83t_mipi_csi2.h"

static int sun8i_a83t_dphy_configure(struct phy *dphy,
				     union phy_configure_opts *opts)
{ … }

static int sun8i_a83t_dphy_power_on(struct phy *dphy)
{
	struct sun8i_a83t_mipi_csi2_device *csi2_dev = phy_get_drvdata(dphy);
	struct regmap *regmap = csi2_dev->regmap;

	regmap_write(regmap, SUN8I_A83T_DPHY_CTRL_REG,
		     SUN8I_A83T_DPHY_CTRL_RESET_N |
		     SUN8I_A83T_DPHY_CTRL_SHUTDOWN_N);

	regmap_write(regmap, SUN8I_A83T_DPHY_ANA0_REG,
		     SUN8I_A83T_DPHY_ANA0_REXT_EN |
		     SUN8I_A83T_DPHY_ANA0_RINT(2) |
		     SUN8I_A83T_DPHY_ANA0_SNK(2));

	return 0;
};

static int sun8i_a83t_dphy_power_off(struct phy *dphy)
{
	struct sun8i_a83t_mipi_csi2_device *csi2_dev = phy_get_drvdata(dphy);
	struct regmap *regmap = csi2_dev->regmap;

	regmap_write(regmap, SUN8I_A83T_DPHY_CTRL_REG, 0);

	return 0;
};

static const struct phy_ops sun8i_a83t_dphy_ops = …;

int sun8i_a83t_dphy_register(struct sun8i_a83t_mipi_csi2_device *csi2_dev)
{ … }