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