/* * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. *//* * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License * Version 2 or later at the following locations: * * http://www.opensource.org/licenses/gpl-license.html * http://www.gnu.org/copyleft/gpl.html *//*! * @file sensor_clock.c * * @brief camera clock function * * @ingroup Camera */#include <linux/init.h>#include <linux/ctype.h>#include <linux/types.h>#include <linux/device.h>#include <linux/clk.h>/* * set_mclk_rate * * @param       p_mclk_freq  mclk frequence * */void set_mclk_rate(uint32_t * p_mclk_freq){	struct clk *clk;	int i;	uint32_t freq = 0;	uint32_t step = *p_mclk_freq / 8;	clk = clk_get(NULL, "csi_clk");	for (i = 0; i <= 8; i++) {		freq = clk_round_rate(clk, *p_mclk_freq - (i * step));		if (freq <= *p_mclk_freq)			break;	}	clk_set_rate(clk, freq);	*p_mclk_freq = freq;	clk_put(clk);	pr_debug("mclk frequency = %d\n", *p_mclk_freq);}/* Exported symbols for modules. */EXPORT_SYMBOL(set_mclk_rate);