1 /* 2 * clk-max77686.c - Clock driver for Maxim 77686 3 * 4 * Copyright (C) 2012 Samsung Electornics 5 * Jonghwa Lee <jonghwa3.lee@samsung.com> 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or (at your 10 * option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 * 21 */ 22 23 #include <linux/kernel.h> 24 #include <linux/slab.h> 25 #include <linux/err.h> 26 #include <linux/platform_device.h> 27 #include <linux/mfd/max77686.h> 28 #include <linux/mfd/max77686-private.h> 29 #include <linux/clk-provider.h> 30 #include <linux/mutex.h> 31 #include <linux/clkdev.h> 32 33 #include <dt-bindings/clock/maxim,max77686.h> 34 #include "clk-max-gen.h" 35 36 static struct clk_init_data max77686_clks_init[MAX77686_CLKS_NUM] = { 37 [MAX77686_CLK_AP] = { 38 .name = "32khz_ap", 39 .ops = &max_gen_clk_ops, 40 .flags = CLK_IS_ROOT, 41 }, 42 [MAX77686_CLK_CP] = { 43 .name = "32khz_cp", 44 .ops = &max_gen_clk_ops, 45 .flags = CLK_IS_ROOT, 46 }, 47 [MAX77686_CLK_PMIC] = { 48 .name = "32khz_pmic", 49 .ops = &max_gen_clk_ops, 50 .flags = CLK_IS_ROOT, 51 }, 52 }; 53 54 static int max77686_clk_probe(struct platform_device *pdev) 55 { 56 struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent); 57 58 return max_gen_clk_probe(pdev, iodev->regmap, MAX77686_REG_32KHZ, 59 max77686_clks_init, MAX77686_CLKS_NUM); 60 } 61 62 static int max77686_clk_remove(struct platform_device *pdev) 63 { 64 return max_gen_clk_remove(pdev, MAX77686_CLKS_NUM); 65 } 66 67 static const struct platform_device_id max77686_clk_id[] = { 68 { "max77686-clk", 0}, 69 { }, 70 }; 71 MODULE_DEVICE_TABLE(platform, max77686_clk_id); 72 73 static struct platform_driver max77686_clk_driver = { 74 .driver = { 75 .name = "max77686-clk", 76 }, 77 .probe = max77686_clk_probe, 78 .remove = max77686_clk_remove, 79 .id_table = max77686_clk_id, 80 }; 81 82 module_platform_driver(max77686_clk_driver); 83 84 MODULE_DESCRIPTION("MAXIM 77686 Clock Driver"); 85 MODULE_AUTHOR("Jonghwa Lee <jonghwa3.lee@samsung.com>"); 86 MODULE_LICENSE("GPL"); 87