Merge tag 'asm-generic-mmu-context-5.11' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-2.6-microblaze.git] / drivers / clk / meson / meson-eeclk.c
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
16 int 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 }