ASoC: remove w90x900/nuc900 platform drivers

The ARM w90x900 platform is getting removed, so this driver is obsolete.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20190809202749.742267-9-arnd@arndb.de
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 0 insertions, 391 deletions

diff --git a/sound/soc/nuc900/nuc900-ac97.c b/sound/soc/nuc900/nuc900-ac97.c
deleted file mode 100644
index 5f2e5c069377..000000000000
--- a/sound/soc/nuc900/nuc900-ac97.c
+++ /dev/null
@@ -1,391 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2009-2010 Nuvoton technology corporation.
- *
- * Wan ZongShun <mcuos.com@gmail.com>
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/device.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/suspend.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/initval.h>
-#include <sound/soc.h>
-#include <linux/clk.h>
-
-#include <mach/mfp.h>
-
-#include "nuc900-audio.h"
-
-static DEFINE_MUTEX(ac97_mutex);
-struct nuc900_audio *nuc900_ac97_data;
-EXPORT_SYMBOL_GPL(nuc900_ac97_data);
-
-static int nuc900_checkready(void)
-{
-	struct nuc900_audio *nuc900_audio = nuc900_ac97_data;
-
-	if (!(AUDIO_READ(nuc900_audio->mmio + ACTL_ACIS0) & CODEC_READY))
-		return -EPERM;
-
-	return 0;
-}
-
-/* AC97 controller reads codec register */
-static unsigned short nuc900_ac97_read(struct snd_ac97 *ac97,
-					unsigned short reg)
-{
-	struct nuc900_audio *nuc900_audio = nuc900_ac97_data;
-	unsigned long timeout = 0x10000, val;
-
-	mutex_lock(&ac97_mutex);
-
-	val = nuc900_checkready();
-	if (val) {
-		dev_err(nuc900_audio->dev, "AC97 codec is not ready\n");
-		goto out;
-	}
-
-	/* set the R_WB bit and write register index */
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_ACOS1, R_WB | reg);
-
-	/* set the valid frame bit and valid slots */
-	val = AUDIO_READ(nuc900_audio->mmio + ACTL_ACOS0);
-	val |= (VALID_FRAME | SLOT1_VALID);
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_ACOS0, val);
-
-	udelay(100);
-
-	/* polling the AC_R_FINISH */
-	while (!(AUDIO_READ(nuc900_audio->mmio + ACTL_ACCON) & AC_R_FINISH)
-								&& --timeout)
-		mdelay(1);
-
-	if (!timeout) {
-		dev_err(nuc900_audio->dev, "AC97 read register time out !\n");
-		val = -EPERM;
-		goto out;
-	}
-
-	val = AUDIO_READ(nuc900_audio->mmio + ACTL_ACOS0) ;
-	val &= ~SLOT1_VALID;
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_ACOS0, val);
-
-	if (AUDIO_READ(nuc900_audio->mmio + ACTL_ACIS1) >> 2 != reg) {
-		dev_err(nuc900_audio->dev,
-				"R_INDEX of REG_ACTL_ACIS1 not match!\n");
-	}
-
-	udelay(100);
-	val = (AUDIO_READ(nuc900_audio->mmio + ACTL_ACIS2) & 0xFFFF);
-
-out:
-	mutex_unlock(&ac97_mutex);
-	return val;
-}
-
-/* AC97 controller writes to codec register */
-static void nuc900_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
-				unsigned short val)
-{
-	struct nuc900_audio *nuc900_audio = nuc900_ac97_data;
-	unsigned long tmp, timeout = 0x10000;
-
-	mutex_lock(&ac97_mutex);
-
-	tmp = nuc900_checkready();
-	if (tmp)
-		dev_err(nuc900_audio->dev, "AC97 codec is not ready\n");
-
-	/* clear the R_WB bit and write register index */
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_ACOS1, reg);
-
-	/* write register value */
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_ACOS2, val);
-
-	/* set the valid frame bit and valid slots */
-	tmp = AUDIO_READ(nuc900_audio->mmio + ACTL_ACOS0);
-	tmp |= SLOT1_VALID | SLOT2_VALID | VALID_FRAME;
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_ACOS0, tmp);
-
-	udelay(100);
-
-	/* polling the AC_W_FINISH */
-	while ((AUDIO_READ(nuc900_audio->mmio + ACTL_ACCON) & AC_W_FINISH)
-								&& --timeout)
-		mdelay(1);
-
-	if (!timeout)
-		dev_err(nuc900_audio->dev, "AC97 write register time out !\n");
-
-	tmp = AUDIO_READ(nuc900_audio->mmio + ACTL_ACOS0);
-	tmp &= ~(SLOT1_VALID | SLOT2_VALID);
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_ACOS0, tmp);
-
-	mutex_unlock(&ac97_mutex);
-
-}
-
-static void nuc900_ac97_warm_reset(struct snd_ac97 *ac97)
-{
-	struct nuc900_audio *nuc900_audio = nuc900_ac97_data;
-	unsigned long val;
-
-	mutex_lock(&ac97_mutex);
-
-	/* warm reset AC 97 */
-	val = AUDIO_READ(nuc900_audio->mmio + ACTL_ACCON);
-	val |= AC_W_RES;
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_ACCON, val);
-
-	udelay(100);
-
-	val = nuc900_checkready();
-	if (val)
-		dev_err(nuc900_audio->dev, "AC97 codec is not ready\n");
-
-	mutex_unlock(&ac97_mutex);
-}
-
-static void nuc900_ac97_cold_reset(struct snd_ac97 *ac97)
-{
-	struct nuc900_audio *nuc900_audio = nuc900_ac97_data;
-	unsigned long val;
-
-	mutex_lock(&ac97_mutex);
-
-	/* reset Audio Controller */
-	val = AUDIO_READ(nuc900_audio->mmio + ACTL_RESET);
-	val |= ACTL_RESET_BIT;
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_RESET, val);
-
-	val = AUDIO_READ(nuc900_audio->mmio + ACTL_RESET);
-	val &= (~ACTL_RESET_BIT);
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_RESET, val);
-
-	/* reset AC-link interface */
-
-	val = AUDIO_READ(nuc900_audio->mmio + ACTL_RESET);
-	val |= AC_RESET;
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_RESET, val);
-
-	val = AUDIO_READ(nuc900_audio->mmio + ACTL_RESET);
-	val &= ~AC_RESET;
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_RESET, val);
-
-	/* cold reset AC 97 */
-	val = AUDIO_READ(nuc900_audio->mmio + ACTL_ACCON);
-	val |= AC_C_RES;
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_ACCON, val);
-
-	val = AUDIO_READ(nuc900_audio->mmio + ACTL_ACCON);
-	val &= (~AC_C_RES);
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_ACCON, val);
-
-	udelay(100);
-
-	mutex_unlock(&ac97_mutex);
-
-}
-
-/* AC97 controller operations */
-static struct snd_ac97_bus_ops nuc900_ac97_ops = {
-	.read		= nuc900_ac97_read,
-	.write		= nuc900_ac97_write,
-	.reset		= nuc900_ac97_cold_reset,
-	.warm_reset	= nuc900_ac97_warm_reset,
-};
-
-static int nuc900_ac97_trigger(struct snd_pcm_substream *substream,
-				int cmd, struct snd_soc_dai *dai)
-{
-	struct nuc900_audio *nuc900_audio = nuc900_ac97_data;
-	int ret;
-	unsigned long val, tmp;
-
-	ret = 0;
-
-	switch (cmd) {
-	case SNDRV_PCM_TRIGGER_START:
-	case SNDRV_PCM_TRIGGER_RESUME:
-		val = AUDIO_READ(nuc900_audio->mmio + ACTL_RESET);
-		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-			tmp = AUDIO_READ(nuc900_audio->mmio + ACTL_ACOS0);
-			tmp |= (SLOT3_VALID | SLOT4_VALID | VALID_FRAME);
-			AUDIO_WRITE(nuc900_audio->mmio + ACTL_ACOS0, tmp);
-
-			tmp = AUDIO_READ(nuc900_audio->mmio + ACTL_PSR);
-			tmp |= (P_DMA_END_IRQ | P_DMA_MIDDLE_IRQ);
-			AUDIO_WRITE(nuc900_audio->mmio + ACTL_PSR, tmp);
-			val |= AC_PLAY;
-		} else {
-			tmp = AUDIO_READ(nuc900_audio->mmio + ACTL_RSR);
-			tmp |= (R_DMA_END_IRQ | R_DMA_MIDDLE_IRQ);
-
-			AUDIO_WRITE(nuc900_audio->mmio + ACTL_RSR, tmp);
-			val |= AC_RECORD;
-		}
-
-		AUDIO_WRITE(nuc900_audio->mmio + ACTL_RESET, val);
-
-		break;
-	case SNDRV_PCM_TRIGGER_STOP:
-	case SNDRV_PCM_TRIGGER_SUSPEND:
-		val = AUDIO_READ(nuc900_audio->mmio + ACTL_RESET);
-		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-			tmp = AUDIO_READ(nuc900_audio->mmio + ACTL_ACOS0);
-			tmp &= ~(SLOT3_VALID | SLOT4_VALID);
-			AUDIO_WRITE(nuc900_audio->mmio + ACTL_ACOS0, tmp);
-
-			AUDIO_WRITE(nuc900_audio->mmio + ACTL_PSR, RESET_PRSR);
-			val &= ~AC_PLAY;
-		} else {
-			AUDIO_WRITE(nuc900_audio->mmio + ACTL_RSR, RESET_PRSR);
-			val &= ~AC_RECORD;
-		}
-
-		AUDIO_WRITE(nuc900_audio->mmio + ACTL_RESET, val);
-
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	return ret;
-}
-
-static int nuc900_ac97_probe(struct snd_soc_dai *dai)
-{
-	struct nuc900_audio *nuc900_audio = nuc900_ac97_data;
-	unsigned long val;
-
-	mutex_lock(&ac97_mutex);
-
-	/* enable unit clock */
-	clk_enable(nuc900_audio->clk);
-
-	/* enable audio controller and AC-link interface */
-	val = AUDIO_READ(nuc900_audio->mmio + ACTL_CON);
-	val |= (IIS_AC_PIN_SEL | ACLINK_EN);
-	AUDIO_WRITE(nuc900_audio->mmio + ACTL_CON, val);
-
-	mutex_unlock(&ac97_mutex);
-
-	return 0;
-}
-
-static int nuc900_ac97_remove(struct snd_soc_dai *dai)
-{
-	struct nuc900_audio *nuc900_audio = nuc900_ac97_data;
-
-	clk_disable(nuc900_audio->clk);
-	return 0;
-}
-
-static const struct snd_soc_dai_ops nuc900_ac97_dai_ops = {
-	.trigger	= nuc900_ac97_trigger,
-};
-
-static struct snd_soc_dai_driver nuc900_ac97_dai = {
-	.probe			= nuc900_ac97_probe,
-	.remove			= nuc900_ac97_remove,
-	.bus_control		= true,
-	.playback = {
-		.rates		= SNDRV_PCM_RATE_8000_48000,
-		.formats	= SNDRV_PCM_FMTBIT_S16_LE,
-		.channels_min	= 1,
-		.channels_max	= 2,
-	},
-	.capture = {
-		.rates		= SNDRV_PCM_RATE_8000_48000,
-		.formats	= SNDRV_PCM_FMTBIT_S16_LE,
-		.channels_min	= 1,
-		.channels_max	= 2,
-	},
-	.ops = &nuc900_ac97_dai_ops,
-};
-
-static const struct snd_soc_component_driver nuc900_ac97_component = {
-	.name		= "nuc900-ac97",
-};
-
-static int nuc900_ac97_drvprobe(struct platform_device *pdev)
-{
-	struct nuc900_audio *nuc900_audio;
-	int ret;
-
-	if (nuc900_ac97_data)
-		return -EBUSY;
-
-	nuc900_audio = devm_kzalloc(&pdev->dev, sizeof(struct nuc900_audio),
-				    GFP_KERNEL);
-	if (!nuc900_audio)
-		return -ENOMEM;
-
-	spin_lock_init(&nuc900_audio->lock);
-
-	nuc900_audio->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	nuc900_audio->mmio = devm_ioremap_resource(&pdev->dev,
-						   nuc900_audio->res);
-	if (IS_ERR(nuc900_audio->mmio))
-		return PTR_ERR(nuc900_audio->mmio);
-
-	nuc900_audio->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(nuc900_audio->clk)) {
-		ret = PTR_ERR(nuc900_audio->clk);
-		goto out;
-	}
-
-	ret = platform_get_irq(pdev, 0);
-	if (ret < 0)
-		goto out;
-	nuc900_audio->irq_num = ret;
-
-	nuc900_ac97_data = nuc900_audio;
-
-	ret = snd_soc_set_ac97_ops(&nuc900_ac97_ops);
-	if (ret)
-		goto out;
-
-	ret = devm_snd_soc_register_component(&pdev->dev, &nuc900_ac97_component,
-					 &nuc900_ac97_dai, 1);
-	if (ret)
-		goto out;
-
-	/* enbale ac97 multifunction pin */
-	mfp_set_groupg(nuc900_audio->dev, NULL);
-
-	return 0;
-
-out:
-	snd_soc_set_ac97_ops(NULL);
-	return ret;
-}
-
-static int nuc900_ac97_drvremove(struct platform_device *pdev)
-{
-	nuc900_ac97_data = NULL;
-	snd_soc_set_ac97_ops(NULL);
-
-	return 0;
-}
-
-static struct platform_driver nuc900_ac97_driver = {
-	.driver	= {
-		.name	= "nuc900-ac97",
-	},
-	.probe		= nuc900_ac97_drvprobe,
-	.remove		= nuc900_ac97_drvremove,
-};
-
-module_platform_driver(nuc900_ac97_driver);
-
-MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
-MODULE_DESCRIPTION("NUC900 AC97 SoC driver!");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:nuc900-ac97");