1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (c) 2019 BayLibre, SAS.
 4 * Author: Jerome Brunet <jbrunet@baylibre.com>
 5 */
 6
 7#include <linux/clk-provider.h>
 8#include <linux/of.h>
 9#include <linux/platform_device.h>
10#include <linux/mfd/syscon.h>
11#include <linux/regmap.h>
12#include <linux/module.h>
13
14#include "clk-regmap.h"
15#include "meson-eeclk.h"
16
17int meson_eeclkc_probe(struct platform_device *pdev)
18{
19	const struct meson_eeclkc_data *data;
20	struct device *dev = &pdev->dev;
21	struct device_node *np;
22	struct regmap *map;
23	int ret, i;
24
25	data = of_device_get_match_data(dev);
26	if (!data)
27		return -EINVAL;
28
29	/* Get the hhi system controller node */
30	np = of_get_parent(dev->of_node);
31	map = syscon_node_to_regmap(np);
32	of_node_put(np);
33	if (IS_ERR(map)) {
34		dev_err(dev,
35			"failed to get HHI regmap\n");
36		return PTR_ERR(map);
37	}
38
39	if (data->init_count)
40		regmap_multi_reg_write(map, data->init_regs, data->init_count);
41
42	/* Populate regmap for the regmap backed clocks */
43	for (i = 0; i < data->regmap_clk_num; i++)
44		data->regmap_clks[i]->map = map;
45
46	for (i = 0; i < data->hw_clks.num; i++) {
47		/* array might be sparse */
48		if (!data->hw_clks.hws[i])
49			continue;
50
51		ret = devm_clk_hw_register(dev, data->hw_clks.hws[i]);
52		if (ret) {
53			dev_err(dev, "Clock registration failed\n");
54			return ret;
55		}
56	}
57
58	return devm_of_clk_add_hw_provider(dev, meson_clk_hw_get, (void *)&data->hw_clks);
 
59}
60EXPORT_SYMBOL_NS_GPL(meson_eeclkc_probe, "CLK_MESON");
61
62MODULE_DESCRIPTION("Amlogic Main Clock Controller Helpers");
63MODULE_LICENSE("GPL");
64MODULE_IMPORT_NS("CLK_MESON");

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (c) 2019 BayLibre, SAS.
 4 * Author: Jerome Brunet <jbrunet@baylibre.com>
 5 */
 6
 7#include <linux/clk-provider.h>
 8#include <linux/of_device.h>
 9#include <linux/platform_device.h>
10#include <linux/mfd/syscon.h>
11#include <linux/regmap.h>
 
12
13#include "clk-regmap.h"
14#include "meson-eeclk.h"
15
16int meson_eeclkc_probe(struct platform_device *pdev)
17{
18	const struct meson_eeclkc_data *data;
19	struct device *dev = &pdev->dev;
 
20	struct regmap *map;
21	int ret, i;
22
23	data = of_device_get_match_data(dev);
24	if (!data)
25		return -EINVAL;
26
27	/* Get the hhi system controller node */
28	map = syscon_node_to_regmap(of_get_parent(dev->of_node));
 
 
29	if (IS_ERR(map)) {
30		dev_err(dev,
31			"failed to get HHI regmap\n");
32		return PTR_ERR(map);
33	}
34
35	if (data->init_count)
36		regmap_multi_reg_write(map, data->init_regs, data->init_count);
37
38	/* Populate regmap for the regmap backed clocks */
39	for (i = 0; i < data->regmap_clk_num; i++)
40		data->regmap_clks[i]->map = map;
41
42	for (i = 0; i < data->hw_onecell_data->num; i++) {
43		/* array might be sparse */
44		if (!data->hw_onecell_data->hws[i])
45			continue;
46
47		ret = devm_clk_hw_register(dev, data->hw_onecell_data->hws[i]);
48		if (ret) {
49			dev_err(dev, "Clock registration failed\n");
50			return ret;
51		}
52	}
53
54	return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get,
55					   data->hw_onecell_data);
56}