1/* 2 * Copyright (C) 2006 Atmel Corporation 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 */ 8 9#include <linux/clk.h> 10#include <linux/err.h> 11#include <linux/init.h> 12#include <linux/platform_device.h> 13 14static int __init pdc_probe(struct platform_device *pdev) 15{ 16 struct clk *pclk, *hclk; 17 18 pclk = clk_get(&pdev->dev, "pclk"); 19 if (IS_ERR(pclk)) { 20 dev_err(&pdev->dev, "no pclk defined\n"); 21 return PTR_ERR(pclk); 22 } 23 hclk = clk_get(&pdev->dev, "hclk"); 24 if (IS_ERR(hclk)) { 25 dev_err(&pdev->dev, "no hclk defined\n"); 26 clk_put(pclk); 27 return PTR_ERR(hclk); 28 } 29 30 clk_enable(pclk); 31 clk_enable(hclk); 32 33 dev_info(&pdev->dev, "Atmel Peripheral DMA Controller enabled\n"); 34 return 0; 35} 36 37static struct platform_driver pdc_driver = { 38 .driver = { 39 .name = "pdc", 40 }, 41}; 42 43static int __init pdc_init(void) 44{ 45 return platform_driver_probe(&pdc_driver, pdc_probe); 46} 47arch_initcall(pdc_init); 48