1/* 2 * OMAP IP block custom reset and preprogramming stubs 3 * 4 * Copyright (C) 2012 Texas Instruments, Inc. 5 * Paul Walmsley 6 * 7 * A small number of IP blocks need custom reset and preprogramming 8 * functions. The stubs in this file provide a standard way for the 9 * hwmod code to call these functions, which are to be located under 10 * drivers/. 11 * 12 * This program is free software; you can redistribute it and/or 13 * modify it under the terms of the GNU General Public License as 14 * published by the Free Software Foundation version 2. 15 * 16 * This program is distributed "as is" WITHOUT ANY WARRANTY of any 17 * kind, whether express or implied; without even the implied warranty 18 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 24 * 02110-1301 USA 25 */ 26#include <linux/kernel.h> 27#include <linux/errno.h> 28 29#include <sound/aess.h> 30 31#include "omap_hwmod.h" 32 33/** 34 * omap_hwmod_aess_preprogram - enable AESS internal autogating 35 * @oh: struct omap_hwmod * 36 * 37 * The AESS will not IdleAck to the PRCM until its internal autogating 38 * is enabled. Since internal autogating is disabled by default after 39 * AESS reset, we must enable autogating after the hwmod code resets 40 * the AESS. Returns 0. 41 */ 42int omap_hwmod_aess_preprogram(struct omap_hwmod *oh) 43{ 44 void __iomem *va; 45 46 va = omap_hwmod_get_mpu_rt_va(oh); 47 if (!va) 48 return -EINVAL; 49 50 aess_enable_autogating(va); 51 52 return 0; 53} 54