mirror of https://gitee.com/openkylin/linux.git
78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
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/* linux/arch/arm/plat-s3c24xx/simtec-audio.c
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*
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* Copyright (c) 2009 Simtec Electronics
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* http://armlinux.simtec.co.uk/
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* Ben Dooks <ben@simtec.co.uk>
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*
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* Audio setup for various Simtec S3C24XX implementations
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/io.h>
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#include <mach/bast-map.h>
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#include <mach/bast-irq.h>
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#include <mach/bast-cpld.h>
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#include <mach/hardware.h>
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#include <mach/regs-gpio.h>
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#include <plat/audio-simtec.h>
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#include <plat/devs.h>
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/* platform ops for audio */
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static void simtec_audio_startup_lrroute(void)
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{
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unsigned int tmp;
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unsigned long flags;
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local_irq_save(flags);
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tmp = __raw_readb(BAST_VA_CTRL1);
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tmp &= ~BAST_CPLD_CTRL1_LRMASK;
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tmp |= BAST_CPLD_CTRL1_LRCDAC;
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__raw_writeb(tmp, BAST_VA_CTRL1);
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local_irq_restore(flags);
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}
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static struct s3c24xx_audio_simtec_pdata simtec_audio_platdata;
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static char our_name[32];
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static struct platform_device simtec_audio_dev = {
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.name = our_name,
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.id = -1,
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.dev = {
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.parent = &s3c_device_iis.dev,
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.platform_data = &simtec_audio_platdata,
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},
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};
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int __init simtec_audio_add(const char *name, bool has_lr_routing,
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struct s3c24xx_audio_simtec_pdata *spd)
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{
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if (!name)
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name = "tlv320aic23";
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snprintf(our_name, sizeof(our_name)-1, "s3c24xx-simtec-%s", name);
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/* copy platform data so the source can be __initdata */
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if (spd)
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simtec_audio_platdata = *spd;
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if (has_lr_routing)
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simtec_audio_platdata.startup = simtec_audio_startup_lrroute;
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platform_device_register(&s3c_device_iis);
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platform_device_register(&simtec_audio_dev);
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return 0;
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}
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