1 // SPDX-License-Identifier: GPL-2.0
3  * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
10 #include <linux/clk-provider.h>
11 #include <linux/reset-controller.h>
15 #include "clk-rcg.h"
16 #include "clk-regmap.h"
32 	if (!f->freq)  in qcom_find_freq()
35 	for (; f->freq; f++)  in qcom_find_freq()
36 		if (rate <= f->freq)  in qcom_find_freq()
40 	return f - 1;  in qcom_find_freq()
49 	for ( ; f->freq; f++) {  in qcom_find_freq_floor()
50 		if (rate >= f->freq)  in qcom_find_freq_floor()
68 	return -ENOENT;  in qcom_find_src_index()
80 	return -ENOENT;  in qcom_find_cfg_index()
89 	struct device *dev = &pdev->dev;  in qcom_cc_map()
96 	return devm_regmap_init_mmio(dev, base, desc->config);  in qcom_cc_map()
106 	/* De-assert reset to FSM */  in qcom_pll_set_fsm_mode()
127  * Backwards compatibility with old DTs. Register a pass-through factor 1/1
142 	clocks_node = of_find_node_by_path("/clocks");  in _qcom_cc_register_board_clk()
151 			return -EINVAL;  in _qcom_cc_register_board_clk()
153 		fixed->fixed_rate = rate;  in _qcom_cc_register_board_clk()
154 		fixed->hw.init = &init_data;  in _qcom_cc_register_board_clk()
159 		ret = devm_clk_hw_register(dev, &fixed->hw);  in _qcom_cc_register_board_clk()
168 			return -EINVAL;  in _qcom_cc_register_board_clk()
170 		factor->mult = factor->div = 1;  in _qcom_cc_register_board_clk()
171 		factor->hw.init = &init_data;  in _qcom_cc_register_board_clk()
179 		ret = devm_clk_hw_register(dev, &factor->hw);  in _qcom_cc_register_board_clk()
195 	 * function to skip registration of xo factor clocks.  in qcom_cc_register_board_clk()
209 /* Drop 'protected-clocks' from the list of clocks to register */
212 	struct device_node *np = dev->of_node;  in qcom_cc_drop_protected()
217 	of_property_for_each_u32(np, "protected-clocks", prop, p, i) {  in qcom_cc_drop_protected()
218 		if (i >= cc->num_rclks)  in qcom_cc_drop_protected()
221 		cc->rclks[i] = NULL;  in qcom_cc_drop_protected()
229 	unsigned int idx = clkspec->args[0];  in qcom_cc_clk_hw_get()
231 	if (idx >= cc->num_rclks) {  in qcom_cc_clk_hw_get()
233 		return ERR_PTR(-EINVAL);  in qcom_cc_clk_hw_get()
236 	return cc->rclks[idx] ? &cc->rclks[idx]->hw : NULL;  in qcom_cc_clk_hw_get()
243 	struct device *dev = &pdev->dev;  in qcom_cc_really_probe()
247 	size_t num_clks = desc->num_clks;  in qcom_cc_really_probe()
248 	struct clk_regmap **rclks = desc->clks;  in qcom_cc_really_probe()
249 	size_t num_clk_hws = desc->num_clk_hws;  in qcom_cc_really_probe()
250 	struct clk_hw **clk_hws = desc->clk_hws;  in qcom_cc_really_probe()
254 		return -ENOMEM;  in qcom_cc_really_probe()
256 	reset = &cc->reset;  in qcom_cc_really_probe()
257 	reset->rcdev.of_node = dev->of_node;  in qcom_cc_really_probe()
258 	reset->rcdev.ops = &qcom_reset_ops;  in qcom_cc_really_probe()
259 	reset->rcdev.owner = dev->driver->owner;  in qcom_cc_really_probe()
260 	reset->rcdev.nr_resets = desc->num_resets;  in qcom_cc_really_probe()
261 	reset->regmap = regmap;  in qcom_cc_really_probe()
262 	reset->reset_map = desc->resets;  in qcom_cc_really_probe()
264 	ret = devm_reset_controller_register(dev, &reset->rcdev);  in qcom_cc_really_probe()
268 	if (desc->gdscs && desc->num_gdscs) {  in qcom_cc_really_probe()
271 			return -ENOMEM;  in qcom_cc_really_probe()
272 		scd->dev = dev;  in qcom_cc_really_probe()
273 		scd->scs = desc->gdscs;  in qcom_cc_really_probe()
274 		scd->num = desc->num_gdscs;  in qcom_cc_really_probe()
275 		ret = gdsc_register(scd, &reset->rcdev, regmap);  in qcom_cc_really_probe()
284 	cc->rclks = rclks;  in qcom_cc_really_probe()
285 	cc->num_rclks = num_clks;  in qcom_cc_really_probe()
332 	base = devm_ioremap_resource(&pdev->dev, res);  in qcom_cc_probe_by_index()
334 		return -ENOMEM;  in qcom_cc_probe_by_index()
336 	regmap = devm_regmap_init_mmio(&pdev->dev, base, desc->config);  in qcom_cc_probe_by_index()