1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun //
3*4882a593Smuzhiyun // Copyright (c) 2009 Simtec Electronics
4*4882a593Smuzhiyun // http://armlinux.simtec.co.uk/
5*4882a593Smuzhiyun // Ben Dooks <ben@simtec.co.uk>
6*4882a593Smuzhiyun //
7*4882a593Smuzhiyun // Audio setup for various Simtec S3C24XX implementations
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <linux/kernel.h>
10*4882a593Smuzhiyun #include <linux/interrupt.h>
11*4882a593Smuzhiyun #include <linux/init.h>
12*4882a593Smuzhiyun #include <linux/device.h>
13*4882a593Smuzhiyun #include <linux/io.h>
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #include "regs-gpio.h"
16*4882a593Smuzhiyun #include "gpio-samsung.h"
17*4882a593Smuzhiyun #include "gpio-cfg.h"
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun #include <linux/platform_data/asoc-s3c24xx_simtec.h>
20*4882a593Smuzhiyun #include "devs.h"
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun #include "bast.h"
23*4882a593Smuzhiyun #include "simtec.h"
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun /* platform ops for audio */
26*4882a593Smuzhiyun
simtec_audio_startup_lrroute(void)27*4882a593Smuzhiyun static void simtec_audio_startup_lrroute(void)
28*4882a593Smuzhiyun {
29*4882a593Smuzhiyun unsigned int tmp;
30*4882a593Smuzhiyun unsigned long flags;
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun local_irq_save(flags);
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun tmp = __raw_readb(BAST_VA_CTRL1);
35*4882a593Smuzhiyun tmp &= ~BAST_CPLD_CTRL1_LRMASK;
36*4882a593Smuzhiyun tmp |= BAST_CPLD_CTRL1_LRCDAC;
37*4882a593Smuzhiyun __raw_writeb(tmp, BAST_VA_CTRL1);
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun local_irq_restore(flags);
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun static struct s3c24xx_audio_simtec_pdata simtec_audio_platdata;
43*4882a593Smuzhiyun static char our_name[32];
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun static struct platform_device simtec_audio_dev = {
46*4882a593Smuzhiyun .name = our_name,
47*4882a593Smuzhiyun .id = -1,
48*4882a593Smuzhiyun .dev = {
49*4882a593Smuzhiyun .parent = &s3c_device_iis.dev,
50*4882a593Smuzhiyun .platform_data = &simtec_audio_platdata,
51*4882a593Smuzhiyun },
52*4882a593Smuzhiyun };
53*4882a593Smuzhiyun
simtec_audio_add(const char * name,bool has_lr_routing,struct s3c24xx_audio_simtec_pdata * spd)54*4882a593Smuzhiyun int __init simtec_audio_add(const char *name, bool has_lr_routing,
55*4882a593Smuzhiyun struct s3c24xx_audio_simtec_pdata *spd)
56*4882a593Smuzhiyun {
57*4882a593Smuzhiyun if (!name)
58*4882a593Smuzhiyun name = "tlv320aic23";
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun snprintf(our_name, sizeof(our_name)-1, "s3c24xx-simtec-%s", name);
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun /* copy platform data so the source can be __initdata */
63*4882a593Smuzhiyun if (spd)
64*4882a593Smuzhiyun simtec_audio_platdata = *spd;
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun if (has_lr_routing)
67*4882a593Smuzhiyun simtec_audio_platdata.startup = simtec_audio_startup_lrroute;
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun /* Configure the I2S pins (GPE0...GPE4) in correct mode */
70*4882a593Smuzhiyun s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
71*4882a593Smuzhiyun S3C_GPIO_PULL_NONE);
72*4882a593Smuzhiyun
73*4882a593Smuzhiyun platform_device_register(&s3c_device_iis);
74*4882a593Smuzhiyun platform_device_register(&simtec_audio_dev);
75*4882a593Smuzhiyun return 0;
76*4882a593Smuzhiyun }
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