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 VT1636 LVDS Transmitter
7 */
8
9#include <linux/slab.h>
10#include "via_aux.h"
11
12
13static const char *name = "VT1636 LVDS Transmitter";
14
15
16void via_aux_vt1636_probe(struct via_aux_bus *bus)
17{
18	struct via_aux_drv drv = {
19		.bus	=	bus,
20		.addr	=	0x40,
21		.name	=	name};
22	/* check vendor id and device id */
23	const u8 id[] = {0x06, 0x11, 0x45, 0x33}, len = ARRAY_SIZE(id);
24	u8 tmp[ARRAY_SIZE(id)];
25
26	if (!via_aux_read(&drv, 0x00, tmp, len) || memcmp(id, tmp, len))
27		return;
28
29	printk(KERN_INFO "viafb: Found %s\n", name);
30	via_aux_add(&drv);
31}
32