1/* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved. 2 * 3 * This program is free software; you can redistribute it and/or modify 4 * it under the terms of the GNU General Public License version 2 and 5 * only version 2 as published by the Free Software Foundation. 6 * 7 * This program is distributed in the hope that it will be useful, 8 * but WITHOUT ANY WARRANTY; without even the implied warranty of 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 * GNU General Public License for more details. 11 * 12 * You should have received a copy of the GNU General Public License 13 * along with this program; if not, write to the Free Software 14 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 15 * 02110-1301, USA. 16 */ 17 18#include <linux/module.h> 19#include <linux/kernel.h> 20#include <linux/slab.h> 21#include <linux/delay.h> 22#include <linux/mm.h> 23#include <linux/fb.h> 24#include <linux/init.h> 25#include <linux/ioport.h> 26#include <linux/device.h> 27#include <linux/dma-mapping.h> 28 29#include "msm_fb.h" 30#include "mddihost.h" 31#include "mddihosti.h" 32 33#include <linux/clk.h> 34#include <mach/clk.h> 35 36extern struct semaphore mddi_host_mutex; 37static boolean mddi_host_ext_powered = FALSE; 38 39void mddi_host_start_ext_display(void) 40{ 41 down(&mddi_host_mutex); 42 43 if (!mddi_host_ext_powered) { 44 mddi_host_init(MDDI_HOST_EXT); 45 46 mddi_host_ext_powered = TRUE; 47 } 48 49 up(&mddi_host_mutex); 50} 51 52void mddi_host_stop_ext_display(void) 53{ 54 down(&mddi_host_mutex); 55 56 if (mddi_host_ext_powered) { 57 mddi_host_powerdown(MDDI_HOST_EXT); 58 59 mddi_host_ext_powered = FALSE; 60 } 61 62 up(&mddi_host_mutex); 63} 64