[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / video / via / via_aux_vt1636.c

/*
 * Copyright 2011 Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation;
 * either version 2, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
 * the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE.See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc.,
 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
/*
 * driver for VIA VT1636 LVDS Transmitter
 */

#include <linux/slab.h>
#include "via_aux.h"


static const char *name = "VT1636 LVDS Transmitter";


void via_aux_vt1636_probe(struct via_aux_bus *bus)
{
	struct via_aux_drv drv = {
		.bus	=	bus,
		.addr	=	0x40,
		.name	=	name};
	/* check vendor id and device id */
	const u8 id[] = {0x06, 0x11, 0x45, 0x33}, len = ARRAY_SIZE(id);
	u8 tmp[len];

	if (!via_aux_read(&drv, 0x00, tmp, len) || memcmp(id, tmp, len))
		return;

	printk(KERN_INFO "viafb: Found %s\n", name);
	via_aux_add(&drv);
}
Commit	Line	Data
e7589271 FTS	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 VIA VT1636 LVDS Transmitter
	22	*/
	23
	24	#include <linux/slab.h>
	25	#include "via_aux.h"
	26
	27
	28	static const char *name = "VT1636 LVDS Transmitter";
	29
	30
	31	void via_aux_vt1636_probe(struct via_aux_bus *bus)
	32	{
	33	struct via_aux_drv drv = {
	34	.bus = bus,
	35	.addr = 0x40,
	36	.name = name};
	37	/* check vendor id and device id */
	38	const u8 id[] = {0x06, 0x11, 0x45, 0x33}, len = ARRAY_SIZE(id);
	39	u8 tmp[len];
	40
	41	if (!via_aux_read(&drv, 0x00, tmp, len) \|\| memcmp(id, tmp, len))
	42	return;
	43
	44	printk(KERN_INFO "viafb: Found %s\n", name);
	45	via_aux_add(&drv);
	46	}