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9d200153 SM |
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 | ||
36 | extern struct semaphore mddi_host_mutex; | |
37 | static boolean mddi_host_ext_powered = FALSE; | |
38 | ||
39 | void 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 | ||
52 | void 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 | } |