1// SPDX-License-Identifier: GPL-2.0
 2//
 3// Copyright (c) 2009 Simtec Electronics
 4//	http://armlinux.simtec.co.uk/
 5//	Ben Dooks <ben@simtec.co.uk>
 6//
 7// Audio setup for various Simtec S3C24XX implementations
 8
 9#include <linux/kernel.h>
10#include <linux/interrupt.h>
11#include <linux/init.h>
12#include <linux/device.h>
13#include <linux/io.h>
14
15#include "regs-gpio.h"
16#include "gpio-samsung.h"
17#include "gpio-cfg.h"
18
19#include <linux/platform_data/asoc-s3c24xx_simtec.h>
20#include "devs.h"
21
22#include "bast.h"
23#include "simtec.h"
24
25/* platform ops for audio */
26
27static void simtec_audio_startup_lrroute(void)
28{
29	unsigned int tmp;
30	unsigned long flags;
31
32	local_irq_save(flags);
33
34	tmp = __raw_readb(BAST_VA_CTRL1);
35	tmp &= ~BAST_CPLD_CTRL1_LRMASK;
36	tmp |= BAST_CPLD_CTRL1_LRCDAC;
37	__raw_writeb(tmp, BAST_VA_CTRL1);
38
39	local_irq_restore(flags);
40}
41
42static struct s3c24xx_audio_simtec_pdata simtec_audio_platdata;
43static char our_name[32];
44
45static struct platform_device simtec_audio_dev = {
46	.name	= our_name,
47	.id	= -1,
48	.dev	= {
49		.parent		= &s3c_device_iis.dev,
50		.platform_data	= &simtec_audio_platdata,
51	},
52};
53
54int __init simtec_audio_add(const char *name, bool has_lr_routing,
55			    struct s3c24xx_audio_simtec_pdata *spd)
56{
57	if (!name)
58		name = "tlv320aic23";
59
60	snprintf(our_name, sizeof(our_name)-1, "s3c24xx-simtec-%s", name);
61
62	/* copy platform data so the source can be __initdata */
63	if (spd)
64		simtec_audio_platdata = *spd;
65
66	if (has_lr_routing)
67		simtec_audio_platdata.startup = simtec_audio_startup_lrroute;
68
69	/* Configure the I2S pins (GPE0...GPE4) in correct mode */
70	s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
71			      S3C_GPIO_PULL_NONE);
72
73	platform_device_register(&s3c_device_iis);
74	platform_device_register(&simtec_audio_dev);
75	return 0;
76}