1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2018, The Linux Foundation. All rights reserved.
4 #include <linux/kernel.h>
5 #include <linux/init.h>
6 #include <linux/module.h>
7 #include <linux/platform_device.h>
11 #include <linux/of_device.h>
12 #include <linux/clk.h>
13 #include <linux/clk-provider.h>
15 static const char *aux_parents[] = {
20 static const u32 aux_parent_map[] = {
25 static const struct of_device_id kpss_xcc_match_table[] = {
26 { .compatible = "qcom,kpss-acc-v1", .data = (void *)1UL },
27 { .compatible = "qcom,kpss-gcc" },
30 MODULE_DEVICE_TABLE(of, kpss_xcc_match_table);
32 static int kpss_xcc_driver_probe(struct platform_device *pdev)
34 const struct of_device_id *id;
39 id = of_match_device(kpss_xcc_match_table, &pdev->dev);
43 base = devm_platform_ioremap_resource(pdev, 0);
48 if (of_property_read_string_index(pdev->dev.of_node,
58 clk = clk_register_mux_table(&pdev->dev, name, aux_parents,
59 ARRAY_SIZE(aux_parents), 0, base, 0, 0x3,
60 0, aux_parent_map, NULL);
62 platform_set_drvdata(pdev, clk);
64 return PTR_ERR_OR_ZERO(clk);
67 static int kpss_xcc_driver_remove(struct platform_device *pdev)
69 clk_unregister_mux(platform_get_drvdata(pdev));
73 static struct platform_driver kpss_xcc_driver = {
74 .probe = kpss_xcc_driver_probe,
75 .remove = kpss_xcc_driver_remove,
78 .of_match_table = kpss_xcc_match_table,
81 module_platform_driver(kpss_xcc_driver);
83 MODULE_DESCRIPTION("Krait Processor Sub System (KPSS) Clock Driver");
84 MODULE_LICENSE("GPL v2");
85 MODULE_ALIAS("platform:kpss-xcc");