| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Copyright (c) 2019 BayLibre, SAS. |
| * Author: Jerome Brunet <jbrunet@baylibre.com> |
| */ |
| |
| #include <linux/clk-provider.h> |
| #include <linux/of.h> |
| #include <linux/platform_device.h> |
| #include <linux/mfd/syscon.h> |
| #include <linux/regmap.h> |
| #include <linux/module.h> |
| |
| #include "clk-regmap.h" |
| #include "meson-eeclk.h" |
| |
| int meson_eeclkc_probe(struct platform_device *pdev) |
| { |
| const struct meson_eeclkc_data *data; |
| struct device *dev = &pdev->dev; |
| struct device_node *np; |
| struct regmap *map; |
| int ret, i; |
| |
| data = of_device_get_match_data(dev); |
| if (!data) |
| return -EINVAL; |
| |
| /* Get the hhi system controller node */ |
| np = of_get_parent(dev->of_node); |
| map = syscon_node_to_regmap(np); |
| of_node_put(np); |
| if (IS_ERR(map)) { |
| dev_err(dev, |
| "failed to get HHI regmap\n"); |
| return PTR_ERR(map); |
| } |
| |
| if (data->init_count) |
| regmap_multi_reg_write(map, data->init_regs, data->init_count); |
| |
| /* Populate regmap for the regmap backed clocks */ |
| for (i = 0; i < data->regmap_clk_num; i++) |
| data->regmap_clks[i]->map = map; |
| |
| for (i = 0; i < data->hw_clks.num; i++) { |
| /* array might be sparse */ |
| if (!data->hw_clks.hws[i]) |
| continue; |
| |
| ret = devm_clk_hw_register(dev, data->hw_clks.hws[i]); |
| if (ret) { |
| dev_err(dev, "Clock registration failed\n"); |
| return ret; |
| } |
| } |
| |
| return devm_of_clk_add_hw_provider(dev, meson_clk_hw_get, (void *)&data->hw_clks); |
| } |
| EXPORT_SYMBOL_GPL(meson_eeclkc_probe); |
| MODULE_LICENSE("GPL"); |