1 files changed, 0 insertions, 471 deletions
diff --git a/sound/soc/samsung/s3c24xx-i2s.c b/sound/soc/samsung/s3c24xx-i2s.c
deleted file mode 100644
index 60bfaed5f7a6..000000000000
--- a/sound/soc/samsung/s3c24xx-i2s.c
+++ /dev/null
@@ -1,471 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-//
-// s3c24xx-i2s.c  --  ALSA Soc Audio Layer
-//
-// (c) 2006 Wolfson Microelectronics PLC.
-// Graeme Gregory graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
-//
-// Copyright 2004-2005 Simtec Electronics
-//	http://armlinux.simtec.co.uk/
-//	Ben Dooks <ben@simtec.co.uk>
-
-#include <linux/delay.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/gpio.h>
-#include <linux/module.h>
-
-#include <sound/soc.h>
-#include <sound/pcm_params.h>
-
-#include <mach/gpio-samsung.h>
-#include <plat/gpio-cfg.h>
-#include "regs-iis.h"
-
-#include "dma.h"
-#include "s3c24xx-i2s.h"
-
-static struct snd_dmaengine_dai_dma_data s3c24xx_i2s_pcm_stereo_out = {
-	.chan_name	= "tx",
-	.addr_width	= 2,
-};
-
-static struct snd_dmaengine_dai_dma_data s3c24xx_i2s_pcm_stereo_in = {
-	.chan_name	= "rx",
-	.addr_width	= 2,
-};
-
-struct s3c24xx_i2s_info {
-	void __iomem	*regs;
-	struct clk	*iis_clk;
-	u32		iiscon;
-	u32		iismod;
-	u32		iisfcon;
-	u32		iispsr;
-};
-static struct s3c24xx_i2s_info s3c24xx_i2s;
-
-static void s3c24xx_snd_txctrl(int on)
-{
-	u32 iisfcon;
-	u32 iiscon;
-	u32 iismod;
-
-	iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON);
-	iiscon  = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
-	iismod  = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
-
-	pr_debug("r: IISCON: %x IISMOD: %x IISFCON: %x\n", iiscon, iismod, iisfcon);
-
-	if (on) {
-		iisfcon |= S3C2410_IISFCON_TXDMA | S3C2410_IISFCON_TXENABLE;
-		iiscon  |= S3C2410_IISCON_TXDMAEN | S3C2410_IISCON_IISEN;
-		iiscon  &= ~S3C2410_IISCON_TXIDLE;
-		iismod  |= S3C2410_IISMOD_TXMODE;
-
-		writel(iismod,  s3c24xx_i2s.regs + S3C2410_IISMOD);
-		writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
-		writel(iiscon,  s3c24xx_i2s.regs + S3C2410_IISCON);
-	} else {
-		/* note, we have to disable the FIFOs otherwise bad things
-		 * seem to happen when the DMA stops. According to the
-		 * Samsung supplied kernel, this should allow the DMA
-		 * engine and FIFOs to reset. If this isn't allowed, the
-		 * DMA engine will simply freeze randomly.
-		 */
-
-		iisfcon &= ~S3C2410_IISFCON_TXENABLE;
-		iisfcon &= ~S3C2410_IISFCON_TXDMA;
-		iiscon  |=  S3C2410_IISCON_TXIDLE;
-		iiscon  &= ~S3C2410_IISCON_TXDMAEN;
-		iismod  &= ~S3C2410_IISMOD_TXMODE;
-
-		writel(iiscon,  s3c24xx_i2s.regs + S3C2410_IISCON);
-		writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
-		writel(iismod,  s3c24xx_i2s.regs + S3C2410_IISMOD);
-	}
-
-	pr_debug("w: IISCON: %x IISMOD: %x IISFCON: %x\n", iiscon, iismod, iisfcon);
-}
-
-static void s3c24xx_snd_rxctrl(int on)
-{
-	u32 iisfcon;
-	u32 iiscon;
-	u32 iismod;
-
-	iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON);
-	iiscon  = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
-	iismod  = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
-
-	pr_debug("r: IISCON: %x IISMOD: %x IISFCON: %x\n", iiscon, iismod, iisfcon);
-
-	if (on) {
-		iisfcon |= S3C2410_IISFCON_RXDMA | S3C2410_IISFCON_RXENABLE;
-		iiscon  |= S3C2410_IISCON_RXDMAEN | S3C2410_IISCON_IISEN;
-		iiscon  &= ~S3C2410_IISCON_RXIDLE;
-		iismod  |= S3C2410_IISMOD_RXMODE;
-
-		writel(iismod,  s3c24xx_i2s.regs + S3C2410_IISMOD);
-		writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
-		writel(iiscon,  s3c24xx_i2s.regs + S3C2410_IISCON);
-	} else {
-		/* note, we have to disable the FIFOs otherwise bad things
-		 * seem to happen when the DMA stops. According to the
-		 * Samsung supplied kernel, this should allow the DMA
-		 * engine and FIFOs to reset. If this isn't allowed, the
-		 * DMA engine will simply freeze randomly.
-		 */
-
-		iisfcon &= ~S3C2410_IISFCON_RXENABLE;
-		iisfcon &= ~S3C2410_IISFCON_RXDMA;
-		iiscon  |= S3C2410_IISCON_RXIDLE;
-		iiscon  &= ~S3C2410_IISCON_RXDMAEN;
-		iismod  &= ~S3C2410_IISMOD_RXMODE;
-
-		writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
-		writel(iiscon,  s3c24xx_i2s.regs + S3C2410_IISCON);
-		writel(iismod,  s3c24xx_i2s.regs + S3C2410_IISMOD);
-	}
-
-	pr_debug("w: IISCON: %x IISMOD: %x IISFCON: %x\n", iiscon, iismod, iisfcon);
-}
-
-/*
- * Wait for the LR signal to allow synchronisation to the L/R clock
- * from the codec. May only be needed for slave mode.
- */
-static int s3c24xx_snd_lrsync(void)
-{
-	u32 iiscon;
-	int timeout = 50; /* 5ms */
-
-	while (1) {
-		iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
-		if (iiscon & S3C2410_IISCON_LRINDEX)
-			break;
-
-		if (!timeout--)
-			return -ETIMEDOUT;
-		udelay(100);
-	}
-
-	return 0;
-}
-
-/*
- * Check whether CPU is the master or slave
- */
-static inline int s3c24xx_snd_is_clkmaster(void)
-{
-	return (readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & S3C2410_IISMOD_SLAVE) ? 0:1;
-}
-
-/*
- * Set S3C24xx I2S DAI format
- */
-static int s3c24xx_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
-		unsigned int fmt)
-{
-	u32 iismod;
-
-	iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
-	pr_debug("hw_params r: IISMOD: %x \n", iismod);
-
-	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
-	case SND_SOC_DAIFMT_CBM_CFM:
-		iismod |= S3C2410_IISMOD_SLAVE;
-		break;
-	case SND_SOC_DAIFMT_CBS_CFS:
-		iismod &= ~S3C2410_IISMOD_SLAVE;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
-	case SND_SOC_DAIFMT_LEFT_J:
-		iismod |= S3C2410_IISMOD_MSB;
-		break;
-	case SND_SOC_DAIFMT_I2S:
-		iismod &= ~S3C2410_IISMOD_MSB;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
-	pr_debug("hw_params w: IISMOD: %x \n", iismod);
-
-	return 0;
-}
-
-static int s3c24xx_i2s_hw_params(struct snd_pcm_substream *substream,
-				 struct snd_pcm_hw_params *params,
-				 struct snd_soc_dai *dai)
-{
-	struct snd_dmaengine_dai_dma_data *dma_data;
-	u32 iismod;
-
-	dma_data = snd_soc_dai_get_dma_data(dai, substream);
-
-	/* Working copies of register */
-	iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
-	pr_debug("hw_params r: IISMOD: %x\n", iismod);
-
-	switch (params_width(params)) {
-	case 8:
-		iismod &= ~S3C2410_IISMOD_16BIT;
-		dma_data->addr_width = 1;
-		break;
-	case 16:
-		iismod |= S3C2410_IISMOD_16BIT;
-		dma_data->addr_width = 2;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
-	pr_debug("hw_params w: IISMOD: %x\n", iismod);
-
-	return 0;
-}
-
-static int s3c24xx_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
-			       struct snd_soc_dai *dai)
-{
-	int ret = 0;
-
-	switch (cmd) {
-	case SNDRV_PCM_TRIGGER_START:
-	case SNDRV_PCM_TRIGGER_RESUME:
-	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		if (!s3c24xx_snd_is_clkmaster()) {
-			ret = s3c24xx_snd_lrsync();
-			if (ret)
-				goto exit_err;
-		}
-
-		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
-			s3c24xx_snd_rxctrl(1);
-		else
-			s3c24xx_snd_txctrl(1);
-
-		break;
-	case SNDRV_PCM_TRIGGER_STOP:
-	case SNDRV_PCM_TRIGGER_SUSPEND:
-	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
-			s3c24xx_snd_rxctrl(0);
-		else
-			s3c24xx_snd_txctrl(0);
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	}
-
-exit_err:
-	return ret;
-}
-
-/*
- * Set S3C24xx Clock source
- */
-static int s3c24xx_i2s_set_sysclk(struct snd_soc_dai *cpu_dai,
-	int clk_id, unsigned int freq, int dir)
-{
-	u32 iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
-
-	iismod &= ~S3C2440_IISMOD_MPLL;
-
-	switch (clk_id) {
-	case S3C24XX_CLKSRC_PCLK:
-		break;
-	case S3C24XX_CLKSRC_MPLL:
-		iismod |= S3C2440_IISMOD_MPLL;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
-	return 0;
-}
-
-/*
- * Set S3C24xx Clock dividers
- */
-static int s3c24xx_i2s_set_clkdiv(struct snd_soc_dai *cpu_dai,
-	int div_id, int div)
-{
-	u32 reg;
-
-	switch (div_id) {
-	case S3C24XX_DIV_BCLK:
-		reg = readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & ~S3C2410_IISMOD_FS_MASK;
-		writel(reg | div, s3c24xx_i2s.regs + S3C2410_IISMOD);
-		break;
-	case S3C24XX_DIV_MCLK:
-		reg = readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & ~(S3C2410_IISMOD_384FS);
-		writel(reg | div, s3c24xx_i2s.regs + S3C2410_IISMOD);
-		break;
-	case S3C24XX_DIV_PRESCALER:
-		writel(div, s3c24xx_i2s.regs + S3C2410_IISPSR);
-		reg = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
-		writel(reg | S3C2410_IISCON_PSCEN, s3c24xx_i2s.regs + S3C2410_IISCON);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-/*
- * To avoid duplicating clock code, allow machine driver to
- * get the clockrate from here.
- */
-u32 s3c24xx_i2s_get_clockrate(void)
-{
-	return clk_get_rate(s3c24xx_i2s.iis_clk);
-}
-EXPORT_SYMBOL_GPL(s3c24xx_i2s_get_clockrate);
-
-static int s3c24xx_i2s_probe(struct snd_soc_dai *dai)
-{
-	int ret;
-	snd_soc_dai_init_dma_data(dai, &s3c24xx_i2s_pcm_stereo_out,
-					&s3c24xx_i2s_pcm_stereo_in);
-
-	s3c24xx_i2s.iis_clk = devm_clk_get(dai->dev, "iis");
-	if (IS_ERR(s3c24xx_i2s.iis_clk)) {
-		pr_err("failed to get iis_clock\n");
-		return PTR_ERR(s3c24xx_i2s.iis_clk);
-	}
-	ret = clk_prepare_enable(s3c24xx_i2s.iis_clk);
-	if (ret)
-		return ret;
-
-	/* Configure the I2S pins (GPE0...GPE4) in correct mode */
-	s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
-			      S3C_GPIO_PULL_NONE);
-
-	writel(S3C2410_IISCON_IISEN, s3c24xx_i2s.regs + S3C2410_IISCON);
-
-	s3c24xx_snd_txctrl(0);
-	s3c24xx_snd_rxctrl(0);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int s3c24xx_i2s_suspend(struct snd_soc_component *component)
-{
-	s3c24xx_i2s.iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
-	s3c24xx_i2s.iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
-	s3c24xx_i2s.iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON);
-	s3c24xx_i2s.iispsr = readl(s3c24xx_i2s.regs + S3C2410_IISPSR);
-
-	clk_disable_unprepare(s3c24xx_i2s.iis_clk);
-
-	return 0;
-}
-
-static int s3c24xx_i2s_resume(struct snd_soc_component *component)
-{
-	int ret;
-
-	ret = clk_prepare_enable(s3c24xx_i2s.iis_clk);
-	if (ret)
-		return ret;
-
-	writel(s3c24xx_i2s.iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
-	writel(s3c24xx_i2s.iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
-	writel(s3c24xx_i2s.iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
-	writel(s3c24xx_i2s.iispsr, s3c24xx_i2s.regs + S3C2410_IISPSR);
-
-	return 0;
-}
-#else
-#define s3c24xx_i2s_suspend NULL
-#define s3c24xx_i2s_resume NULL
-#endif
-
-#define S3C24XX_I2S_RATES \
-	(SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000 | \
-	SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
-	SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
-
-static const struct snd_soc_dai_ops s3c24xx_i2s_dai_ops = {
-	.trigger	= s3c24xx_i2s_trigger,
-	.hw_params	= s3c24xx_i2s_hw_params,
-	.set_fmt	= s3c24xx_i2s_set_fmt,
-	.set_clkdiv	= s3c24xx_i2s_set_clkdiv,
-	.set_sysclk	= s3c24xx_i2s_set_sysclk,
-};
-
-static struct snd_soc_dai_driver s3c24xx_i2s_dai = {
-	.probe = s3c24xx_i2s_probe,
-	.playback = {
-		.channels_min = 2,
-		.channels_max = 2,
-		.rates = S3C24XX_I2S_RATES,
-		.formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE,},
-	.capture = {
-		.channels_min = 2,
-		.channels_max = 2,
-		.rates = S3C24XX_I2S_RATES,
-		.formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = &s3c24xx_i2s_dai_ops,
-};
-
-static const struct snd_soc_component_driver s3c24xx_i2s_component = {
-	.name		= "s3c24xx-i2s",
-	.suspend	= s3c24xx_i2s_suspend,
-	.resume		= s3c24xx_i2s_resume,
-};
-
-static int s3c24xx_iis_dev_probe(struct platform_device *pdev)
-{
-	struct resource *res;
-	int ret;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	s3c24xx_i2s.regs = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(s3c24xx_i2s.regs))
-		return PTR_ERR(s3c24xx_i2s.regs);
-
-	s3c24xx_i2s_pcm_stereo_out.addr = res->start + S3C2410_IISFIFO;
-	s3c24xx_i2s_pcm_stereo_in.addr = res->start + S3C2410_IISFIFO;
-
-	ret = samsung_asoc_dma_platform_register(&pdev->dev, NULL,
-						 "tx", "rx", NULL);
-	if (ret) {
-		dev_err(&pdev->dev, "Failed to register the DMA: %d\n", ret);
-		return ret;
-	}
-
-	ret = devm_snd_soc_register_component(&pdev->dev,
-			&s3c24xx_i2s_component, &s3c24xx_i2s_dai, 1);
-	if (ret)
-		dev_err(&pdev->dev, "Failed to register the DAI\n");
-
-	return ret;
-}
-
-static struct platform_driver s3c24xx_iis_driver = {
-	.probe  = s3c24xx_iis_dev_probe,
-	.driver = {
-		.name = "s3c24xx-iis",
-	},
-};
-
-module_platform_driver(s3c24xx_iis_driver);
-
-/* Module information */
-MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("s3c24xx I2S SoC Interface");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:s3c24xx-iis");