// SPDX-License-Identifier: GPL-2.0-only/* * OMAP interface clock support * * Copyright (C) 2013 Texas Instruments, Inc. * * Tero Kristo <t-kristo@ti.com> */ #include <linux/clk-provider.h>#include <linux/slab.h>#include <linux/of.h>#include <linux/of_address.h>#include <linux/clk/ti.h>#include "clock.h" #undef pr_fmt#define pr_fmt(fmt) "%s: " fmt, __func__ static const struct clk_ops ti_interface_clk_ops = {	.init		= &omap2_init_clk_clkdm,	.enable		= &omap2_dflt_clk_enable,	.disable	= &omap2_dflt_clk_disable,	.is_enabled	= &omap2_dflt_clk_is_enabled,}; static struct clk *_register_interface(struct device_node *node,				       const char *name,				       const char *parent_name,				       struct clk_omap_reg *reg, u8 bit_idx,				       const struct clk_hw_omap_ops *ops){	struct clk_init_data init = { NULL };	struct clk_hw_omap *clk_hw;	struct clk *clk; 	clk_hw = kzalloc_obj(*clk_hw);	if (!clk_hw)		return ERR_PTR(-ENOMEM); 	clk_hw->hw.init = &init;	clk_hw->ops = ops;	memcpy(&clk_hw->enable_reg, reg, sizeof(*reg));	clk_hw->enable_bit = bit_idx; 	init.name = name;	init.ops = &ti_interface_clk_ops;	init.flags = 0; 	init.num_parents = 1;	init.parent_names = &parent_name; 	clk = of_ti_clk_register_omap_hw(node, &clk_hw->hw, name); 	if (IS_ERR(clk))		kfree(clk_hw); 	return clk;} static void __init _of_ti_interface_clk_setup(struct device_node *node,					      const struct clk_hw_omap_ops *ops){	struct clk *clk;	const char *parent_name;	struct clk_omap_reg reg;	u8 enable_bit = 0;	const char *name; 	if (ti_clk_get_reg_addr(node, 0, &reg))		return; 	enable_bit = reg.bit; 	parent_name = of_clk_get_parent_name(node, 0);	if (!parent_name) {		pr_err("%pOFn must have a parent\n", node);		return;	} 	name = ti_dt_clk_name(node);	clk = _register_interface(node, name, parent_name, &reg,				  enable_bit, ops); 	if (!IS_ERR(clk))		of_clk_add_provider(node, of_clk_src_simple_get, clk);} static void __init of_ti_interface_clk_setup(struct device_node *node){	_of_ti_interface_clk_setup(node, &clkhwops_iclk_wait);}CLK_OF_DECLARE(ti_interface_clk, "ti,omap3-interface-clock",	       of_ti_interface_clk_setup); static void __init of_ti_no_wait_interface_clk_setup(struct device_node *node){	_of_ti_interface_clk_setup(node, &clkhwops_iclk);}CLK_OF_DECLARE(ti_no_wait_interface_clk, "ti,omap3-no-wait-interface-clock",	       of_ti_no_wait_interface_clk_setup); #ifdef CONFIG_ARCH_OMAP3static void __init of_ti_hsotgusb_interface_clk_setup(struct device_node *node){	_of_ti_interface_clk_setup(node,				   &clkhwops_omap3430es2_iclk_hsotgusb_wait);}CLK_OF_DECLARE(ti_hsotgusb_interface_clk, "ti,omap3-hsotgusb-interface-clock",	       of_ti_hsotgusb_interface_clk_setup); static void __init of_ti_dss_interface_clk_setup(struct device_node *node){	_of_ti_interface_clk_setup(node,				   &clkhwops_omap3430es2_iclk_dss_usbhost_wait);}CLK_OF_DECLARE(ti_dss_interface_clk, "ti,omap3-dss-interface-clock",	       of_ti_dss_interface_clk_setup); static void __init of_ti_ssi_interface_clk_setup(struct device_node *node){	_of_ti_interface_clk_setup(node, &clkhwops_omap3430es2_iclk_ssi_wait);}CLK_OF_DECLARE(ti_ssi_interface_clk, "ti,omap3-ssi-interface-clock",	       of_ti_ssi_interface_clk_setup); static void __init of_ti_am35xx_interface_clk_setup(struct device_node *node){	_of_ti_interface_clk_setup(node, &clkhwops_am35xx_ipss_wait);}CLK_OF_DECLARE(ti_am35xx_interface_clk, "ti,am35xx-interface-clock",	       of_ti_am35xx_interface_clk_setup);#endif #ifdef CONFIG_SOC_OMAP2430static void __init of_ti_omap2430_interface_clk_setup(struct device_node *node){	_of_ti_interface_clk_setup(node, &clkhwops_omap2430_i2chs_wait);}CLK_OF_DECLARE(ti_omap2430_interface_clk, "ti,omap2430-interface-clock",	       of_ti_omap2430_interface_clk_setup);#endif