// 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_device.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_onecell_data->num; i++) { /* array might be sparse */ if (!data->hw_onecell_data->hws[i]) continue; ret = devm_clk_hw_register(dev, data->hw_onecell_data->hws[i]); if (ret) { dev_err(dev, "Clock registration failed\n"); return ret; } } return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, data->hw_onecell_data); } EXPORT_SYMBOL_GPL(meson_eeclkc_probe); MODULE_LICENSE("GPL v2");