1 /* 2 * abx500 clock implementation for ux500 platform. 3 * 4 * Copyright (C) 2012 ST-Ericsson SA 5 * Author: Ulf Hansson <ulf.hansson@linaro.org> 6 * 7 * License terms: GNU General Public License (GPL) version 2 8 */ 9 10 #include <linux/err.h> 11 #include <linux/module.h> 12 #include <linux/device.h> 13 #include <linux/platform_device.h> 14 #include <linux/mfd/abx500/ab8500.h> 15 16 /* TODO: Add clock implementations here */ 17 18 19 /* Clock definitions for ab8500 */ 20 static int ab8500_reg_clks(struct device *dev) 21 { 22 return 0; 23 } 24 25 /* Clock definitions for ab8540 */ 26 static int ab8540_reg_clks(struct device *dev) 27 { 28 return 0; 29 } 30 31 /* Clock definitions for ab9540 */ 32 static int ab9540_reg_clks(struct device *dev) 33 { 34 return 0; 35 } 36 37 static int __devinit abx500_clk_probe(struct platform_device *pdev) 38 { 39 struct ab8500 *parent = dev_get_drvdata(pdev->dev.parent); 40 int ret; 41 42 if (is_ab8500(parent) || is_ab8505(parent)) { 43 ret = ab8500_reg_clks(&pdev->dev); 44 } else if (is_ab8540(parent)) { 45 ret = ab8540_reg_clks(&pdev->dev); 46 } else if (is_ab9540(parent)) { 47 ret = ab9540_reg_clks(&pdev->dev); 48 } else { 49 dev_err(&pdev->dev, "non supported plf id\n"); 50 return -ENODEV; 51 } 52 53 return ret; 54 } 55 56 static struct platform_driver abx500_clk_driver = { 57 .driver = { 58 .name = "abx500-clk", 59 .owner = THIS_MODULE, 60 }, 61 .probe = abx500_clk_probe, 62 }; 63 64 static int __init abx500_clk_init(void) 65 { 66 return platform_driver_register(&abx500_clk_driver); 67 } 68 69 arch_initcall(abx500_clk_init); 70 71 MODULE_AUTHOR("Ulf Hansson <ulf.hansson@linaro.org"); 72 MODULE_DESCRIPTION("ABX500 clk driver"); 73 MODULE_LICENSE("GPL v2"); 74