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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143// 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, ®)) 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, ®, 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