Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Clock driver for the ARM Integrator/AP, Integrator/CP, Versatile AB and
 * Versatile PB boards.
 * Copyright (C) 2012 Linus Walleij
 */
#include <linux/clk-provider.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/of_address.h>
 
#include "icst.h"
#include "clk-icst.h"
 
#define INTEGRATOR_HDR_LOCK_OFFSET	0x14
 
#define VERSATILE_SYS_OSCCLCD_OFFSET	0x1c
#define VERSATILE_SYS_LOCK_OFFSET	0x20
 
/* Base offset for the core module */
static void __iomem *cm_base;
 
static const struct icst_params cp_auxosc_params = {
<------>.vco_max	= ICST525_VCO_MAX_5V,
<------>.vco_min	= ICST525_VCO_MIN,
<------>.vd_min 	= 8,
<------>.vd_max 	= 263,
<------>.rd_min 	= 3,
<------>.rd_max 	= 65,
<------>.s2div		= icst525_s2div,
<------>.idx2s		= icst525_idx2s,
};
 
static const struct clk_icst_desc cm_auxosc_desc __initconst = {
<------>.params = &cp_auxosc_params,
<------>.vco_offset = 0x1c,
<------>.lock_offset = INTEGRATOR_HDR_LOCK_OFFSET,
};
 
static const struct icst_params versatile_auxosc_params = {
<------>.vco_max	= ICST307_VCO_MAX,
<------>.vco_min	= ICST307_VCO_MIN,
<------>.vd_min		= 4 + 8,
<------>.vd_max		= 511 + 8,
<------>.rd_min		= 1 + 2,
<------>.rd_max		= 127 + 2,
<------>.s2div		= icst307_s2div,
<------>.idx2s		= icst307_idx2s,
};
 
static const struct clk_icst_desc versatile_auxosc_desc __initconst = {
<------>.params = &versatile_auxosc_params,
<------>.vco_offset = VERSATILE_SYS_OSCCLCD_OFFSET,
<------>.lock_offset = VERSATILE_SYS_LOCK_OFFSET,
};
static void __init cm_osc_setup(struct device_node *np,
<------><------><------><------>const struct clk_icst_desc *desc)
{
<------>struct clk *clk;
<------>const char *clk_name = np->name;
<------>const char *parent_name;
 
<------>if (!cm_base) {
<------><------>/* Remap the core module base if not done yet */
<------><------>struct device_node *parent;
 
<------><------>parent = of_get_parent(np);
<------><------>if (!parent) {
<------><------><------>pr_err("no parent on core module clock\n");
<------><------><------>return;
<------><------>}
<------><------>cm_base = of_iomap(parent, 0);
<------><------>of_node_put(parent);
<------><------>if (!cm_base) {
<------><------><------>pr_err("could not remap core module base\n");
<------><------><------>return;
<------><------>}
<------>}
 
<------>parent_name = of_clk_get_parent_name(np, 0);
<------>clk = icst_clk_register(NULL, desc, clk_name, parent_name, cm_base);
<------>if (!IS_ERR(clk))
<------><------>of_clk_add_provider(np, of_clk_src_simple_get, clk);
}
 
static void __init of_integrator_cm_osc_setup(struct device_node *np)
{
<------>cm_osc_setup(np, &cm_auxosc_desc);
}
CLK_OF_DECLARE(integrator_cm_auxosc_clk,
<------>"arm,integrator-cm-auxosc", of_integrator_cm_osc_setup);
 
static void __init of_versatile_cm_osc_setup(struct device_node *np)
{
<------>cm_osc_setup(np, &versatile_auxosc_desc);
}
CLK_OF_DECLARE(versatile_cm_auxosc_clk,
<------>       "arm,versatile-cm-auxosc", of_versatile_cm_osc_setup);