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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * TI Fixed Factor Clock4 *5 * Copyright (C) 2013 Texas Instruments, Inc.6 *7 * Tero Kristo <t-kristo@ti.com>8 */9 10#include <linux/clk-provider.h>11#include <linux/slab.h>12#include <linux/err.h>13#include <linux/of.h>14#include <linux/of_address.h>15#include <linux/clk/ti.h>16 17#include "clock.h"18 19#undef pr_fmt20#define pr_fmt(fmt) "%s: " fmt, __func__21 22/**23 * of_ti_fixed_factor_clk_setup - Setup function for TI fixed factor clock24 * @node: device node for this clock25 *26 * Sets up a simple fixed factor clock based on device tree info.27 */28static void __init of_ti_fixed_factor_clk_setup(struct device_node *node)29{30	struct clk *clk;31	const char *clk_name = ti_dt_clk_name(node);32	const char *parent_name;33	u32 div, mult;34	u32 flags = 0;35 36	if (of_property_read_u32(node, "ti,clock-div", &div)) {37		pr_err("%pOFn must have a clock-div property\n", node);38		return;39	}40 41	if (of_property_read_u32(node, "ti,clock-mult", &mult)) {42		pr_err("%pOFn must have a clock-mult property\n", node);43		return;44	}45 46	if (of_property_read_bool(node, "ti,set-rate-parent"))47		flags |= CLK_SET_RATE_PARENT;48 49	parent_name = of_clk_get_parent_name(node, 0);50 51	clk = clk_register_fixed_factor(NULL, clk_name, parent_name, flags,52					mult, div);53 54	if (!IS_ERR(clk)) {55		of_clk_add_provider(node, of_clk_src_simple_get, clk);56		of_ti_clk_autoidle_setup(node);57		ti_clk_add_alias(clk, clk_name);58	}59}60CLK_OF_DECLARE(ti_fixed_factor_clk, "ti,fixed-factor-clock",61	       of_ti_fixed_factor_clk_setup);62