M7350/kernel/drivers/video/msm/mddihost_e.c
2024-09-09 08:52:07 +00:00

60 lines
1.3 KiB
C

/* Copyright (c) 2008-2009, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/mm.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include "msm_fb.h"
#include "mddihost.h"
#include "mddihosti.h"
#include <linux/clk.h>
#include <mach/clk.h>
extern struct semaphore mddi_host_mutex;
static boolean mddi_host_ext_powered = FALSE;
void mddi_host_start_ext_display(void)
{
down(&mddi_host_mutex);
if (!mddi_host_ext_powered) {
mddi_host_init(MDDI_HOST_EXT);
mddi_host_ext_powered = TRUE;
}
up(&mddi_host_mutex);
}
void mddi_host_stop_ext_display(void)
{
down(&mddi_host_mutex);
if (mddi_host_ext_powered) {
mddi_host_powerdown(MDDI_HOST_EXT);
mddi_host_ext_powered = FALSE;
}
up(&mddi_host_mutex);
}