Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
[profile/ivi/kernel-adaptation-intel-automotive.git] / arch / arm / mach-s3c24xx / simtec-audio.c
1 /* linux/arch/arm/plat-s3c24xx/simtec-audio.c
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  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12 */
13
14 #include <linux/kernel.h>
15 #include <linux/interrupt.h>
16 #include <linux/init.h>
17 #include <linux/device.h>
18 #include <linux/io.h>
19
20 #include <mach/bast-map.h>
21 #include <mach/bast-irq.h>
22 #include <mach/bast-cpld.h>
23
24 #include <mach/hardware.h>
25 #include <mach/regs-gpio.h>
26
27 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
28 #include <plat/devs.h>
29
30 #include "simtec.h"
31
32 /* platform ops for audio */
33
34 static void simtec_audio_startup_lrroute(void)
35 {
36         unsigned int tmp;
37         unsigned long flags;
38
39         local_irq_save(flags);
40
41         tmp = __raw_readb(BAST_VA_CTRL1);
42         tmp &= ~BAST_CPLD_CTRL1_LRMASK;
43         tmp |= BAST_CPLD_CTRL1_LRCDAC;
44         __raw_writeb(tmp, BAST_VA_CTRL1);
45
46         local_irq_restore(flags);
47 }
48
49 static struct s3c24xx_audio_simtec_pdata simtec_audio_platdata;
50 static char our_name[32];
51
52 static struct platform_device simtec_audio_dev = {
53         .name   = our_name,
54         .id     = -1,
55         .dev    = {
56                 .parent         = &s3c_device_iis.dev,
57                 .platform_data  = &simtec_audio_platdata,
58         },
59 };
60
61 int __init simtec_audio_add(const char *name, bool has_lr_routing,
62                             struct s3c24xx_audio_simtec_pdata *spd)
63 {
64         if (!name)
65                 name = "tlv320aic23";
66
67         snprintf(our_name, sizeof(our_name)-1, "s3c24xx-simtec-%s", name);
68
69         /* copy platform data so the source can be __initdata */
70         if (spd)
71                 simtec_audio_platdata = *spd;
72
73         if (has_lr_routing)
74                 simtec_audio_platdata.startup = simtec_audio_startup_lrroute;
75
76         platform_device_register(&s3c_device_iis);
77         platform_device_register(&simtec_audio_dev);
78         return 0;
79 }