1 // SPDX-License-Identifier: GPL-2.0
3 // Copyright (c) 2009 Simtec Electronics
4 // http://armlinux.simtec.co.uk/
5 // Ben Dooks <ben@simtec.co.uk>
7 // Audio setup for various Simtec S3C24XX implementations
9 #include <linux/kernel.h>
10 #include <linux/interrupt.h>
11 #include <linux/init.h>
12 #include <linux/device.h>
15 #include <mach/hardware.h>
16 #include <mach/regs-gpio.h>
18 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
19 #include <plat/devs.h>
24 /* platform ops for audio */
26 static void simtec_audio_startup_lrroute(void)
31 local_irq_save(flags);
33 tmp = __raw_readb(BAST_VA_CTRL1);
34 tmp &= ~BAST_CPLD_CTRL1_LRMASK;
35 tmp |= BAST_CPLD_CTRL1_LRCDAC;
36 __raw_writeb(tmp, BAST_VA_CTRL1);
38 local_irq_restore(flags);
41 static struct s3c24xx_audio_simtec_pdata simtec_audio_platdata;
42 static char our_name[32];
44 static struct platform_device simtec_audio_dev = {
48 .parent = &s3c_device_iis.dev,
49 .platform_data = &simtec_audio_platdata,
53 int __init simtec_audio_add(const char *name, bool has_lr_routing,
54 struct s3c24xx_audio_simtec_pdata *spd)
59 snprintf(our_name, sizeof(our_name)-1, "s3c24xx-simtec-%s", name);
61 /* copy platform data so the source can be __initdata */
63 simtec_audio_platdata = *spd;
66 simtec_audio_platdata.startup = simtec_audio_startup_lrroute;
68 platform_device_register(&s3c_device_iis);
69 platform_device_register(&simtec_audio_dev);