linux/drivers/media/platform/microchip/microchip-isc-clk.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Microchip Image Sensor Controller (ISC) common clock driver setup
 *
 * Copyright (C) 2016 Microchip Technology, Inc.
 *
 * Author: Songjun Wu
 * Author: Eugen Hristev <[email protected]>
 *
 */
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>

#include "microchip-isc-regs.h"
#include "microchip-isc.h"

static int isc_wait_clk_stable(struct clk_hw *hw)
{ … }

static int isc_clk_prepare(struct clk_hw *hw)
{ … }

static void isc_clk_unprepare(struct clk_hw *hw)
{ … }

static int isc_clk_enable(struct clk_hw *hw)
{ … }

static void isc_clk_disable(struct clk_hw *hw)
{ … }

static int isc_clk_is_enabled(struct clk_hw *hw)
{ … }

static unsigned long
isc_clk_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
{ … }

static int isc_clk_determine_rate(struct clk_hw *hw,
				  struct clk_rate_request *req)
{ … }

static int isc_clk_set_parent(struct clk_hw *hw, u8 index)
{ … }

static u8 isc_clk_get_parent(struct clk_hw *hw)
{ … }

static int isc_clk_set_rate(struct clk_hw *hw,
			    unsigned long rate,
			    unsigned long parent_rate)
{ … }

static const struct clk_ops isc_clk_ops = …;

static int isc_clk_register(struct isc_device *isc, unsigned int id)
{ … }

int microchip_isc_clk_init(struct isc_device *isc)
{ … }
EXPORT_SYMBOL_GPL(…);

void microchip_isc_clk_cleanup(struct isc_device *isc)
{ … }
EXPORT_SYMBOL_GPL(…);