linux/drivers/clk/x86/clk-fch.c

// SPDX-License-Identifier: MIT
/*
 * clock framework for AMD FCH controller block
 *
 * Copyright 2018 Advanced Micro Devices, Inc.
 */

#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
#include <linux/pci.h>
#include <linux/platform_data/clk-fch.h>
#include <linux/platform_device.h>

/* Clock Driving Strength 2 register */
#define CLKDRVSTR2 …
/* Clock Control 1 register */
#define MISCCLKCNTL1 …
/* Auxiliary clock1 enable bit */
#define OSCCLKENB …
/* 25Mhz auxiliary output clock freq bit */
#define OSCOUT1CLK25MHZ …

#define ST_CLK_48M …
#define ST_CLK_25M …
#define ST_CLK_MUX …
#define ST_CLK_GATE …
#define ST_MAX_CLKS …

#define CLK_48M_FIXED …
#define CLK_GATE_FIXED …
#define CLK_MAX_FIXED …

/* List of supported CPU ids for clk mux with 25Mhz clk support */
#define AMD_CPU_ID_ST …

static const char * const clk_oscout1_parents[] = …;
static struct clk_hw *hws[ST_MAX_CLKS];

static const struct pci_device_id fch_pci_ids[] = …;

static int fch_clk_probe(struct platform_device *pdev)
{ … }

static void fch_clk_remove(struct platform_device *pdev)
{ … }

static struct platform_driver fch_clk_driver = …;
builtin_platform_driver(…) …;