1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright 2011 Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
4 */
5 /*
6 * driver for VIA VT1622(M) Digital TV Encoder
7 */
8
9 #include <linux/slab.h>
10 #include "via_aux.h"
11
12
13 static const char *name = "VT1622(M) Digital TV Encoder";
14
15
probe(struct via_aux_bus * bus,u8 addr)16 static void probe(struct via_aux_bus *bus, u8 addr)
17 {
18 struct via_aux_drv drv = {
19 .bus = bus,
20 .addr = addr,
21 .name = name};
22 u8 tmp;
23
24 if (!via_aux_read(&drv, 0x1B, &tmp, 1) || tmp != 0x03)
25 return;
26
27 printk(KERN_INFO "viafb: Found %s at address 0x%x\n", name, addr);
28 via_aux_add(&drv);
29 }
30
via_aux_vt1622_probe(struct via_aux_bus * bus)31 void via_aux_vt1622_probe(struct via_aux_bus *bus)
32 {
33 probe(bus, 0x20);
34 probe(bus, 0x21);
35 }
36