diff options
Diffstat (limited to 'drivers/video/fbdev/via/via_aux_ch7301.c')
-rw-r--r-- | drivers/video/fbdev/via/via_aux_ch7301.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/video/fbdev/via/via_aux_ch7301.c b/drivers/video/fbdev/via/via_aux_ch7301.c new file mode 100644 index 000000000000..1cbe5037a6b0 --- /dev/null +++ b/drivers/video/fbdev/via/via_aux_ch7301.c | |||
@@ -0,0 +1,50 @@ | |||
1 | /* | ||
2 | * Copyright 2011 Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or | ||
5 | * modify it under the terms of the GNU General Public | ||
6 | * License as published by the Free Software Foundation; | ||
7 | * either version 2, or (at your option) any later version. | ||
8 | * | ||
9 | * This program is distributed in the hope that it will be useful, | ||
10 | * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even | ||
11 | * the implied warranty of MERCHANTABILITY or FITNESS FOR | ||
12 | * A PARTICULAR PURPOSE.See the GNU General Public License | ||
13 | * for more details. | ||
14 | * | ||
15 | * You should have received a copy of the GNU General Public License | ||
16 | * along with this program; if not, write to the Free Software | ||
17 | * Foundation, Inc., | ||
18 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
19 | */ | ||
20 | /* | ||
21 | * driver for Chrontel CH7301 DVI Transmitter | ||
22 | */ | ||
23 | |||
24 | #include <linux/slab.h> | ||
25 | #include "via_aux.h" | ||
26 | |||
27 | |||
28 | static const char *name = "CH7301 DVI Transmitter"; | ||
29 | |||
30 | |||
31 | static void probe(struct via_aux_bus *bus, u8 addr) | ||
32 | { | ||
33 | struct via_aux_drv drv = { | ||
34 | .bus = bus, | ||
35 | .addr = addr, | ||
36 | .name = name}; | ||
37 | u8 tmp; | ||
38 | |||
39 | if (!via_aux_read(&drv, 0x4B, &tmp, 1) || tmp != 0x17) | ||
40 | return; | ||
41 | |||
42 | printk(KERN_INFO "viafb: Found %s at address 0x%x\n", name, addr); | ||
43 | via_aux_add(&drv); | ||
44 | } | ||
45 | |||
46 | void via_aux_ch7301_probe(struct via_aux_bus *bus) | ||
47 | { | ||
48 | probe(bus, 0x75); | ||
49 | probe(bus, 0x76); | ||
50 | } | ||