ASoC: fsl: mpc8610_hpcd: Remove unused driver

The mpc8610_hpcd.c driver depends on CONFIG_MPC8610_HPCD which was
removed in commit 248667f8bbde ("powerpc: drop HPCD/MPC8610 evaluation
platform support"). That makes the driver unbuildable and unusable, so
remove it.

Depends-on: 248667f8bbde ("powerpc: drop HPCD/MPC8610 evaluation platform support")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20231122062712.2250426-1-mpe@ellerman.id.au
Signed-off-by: Mark Brown <broonie@kernel.org>

3 files changed, 0 insertions, 468 deletions

diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig
index 725c530a3636..bec2aa561930 100644
--- a/sound/soc/fsl/Kconfig
+++ b/sound/soc/fsl/Kconfig
@@ -183,19 +183,6 @@ config SND_SOC_POWERPC_QMC_AUDIO
 
 comment "SoC Audio support for Freescale PPC boards:"
 
-config SND_SOC_MPC8610_HPCD
-	tristate "ALSA SoC support for the Freescale MPC8610 HPCD board"
-	# I2C is necessary for the CS4270 driver
-	depends on MPC8610_HPCD && I2C
-	select SND_SOC_FSL_SSI
-	select SND_SOC_FSL_UTILS
-	select SND_SOC_POWERPC_DMA
-	select SND_SOC_CS4270
-	select SND_SOC_CS4270_VD33_ERRATA
-	default y if MPC8610_HPCD
-	help
-	  Say Y if you want to enable audio on the Freescale MPC8610 HPCD.
-
 config SND_SOC_P1022_DS
 	tristate "ALSA SoC support for the Freescale P1022 DS board"
 	# I2C is necessary for the WM8776 driver
diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile
index 8db7e97d0bd5..b45eda80c196 100644
--- a/sound/soc/fsl/Makefile
+++ b/sound/soc/fsl/Makefile
@@ -1,8 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-# MPC8610 HPCD Machine Support
-snd-soc-mpc8610-hpcd-objs := mpc8610_hpcd.o
-obj-$(CONFIG_SND_SOC_MPC8610_HPCD) += snd-soc-mpc8610-hpcd.o
-
 # P1022 DS Machine Support
 snd-soc-p1022-ds-objs := p1022_ds.o
 obj-$(CONFIG_SND_SOC_P1022_DS) += snd-soc-p1022-ds.o
diff --git a/sound/soc/fsl/mpc8610_hpcd.c b/sound/soc/fsl/mpc8610_hpcd.c
deleted file mode 100644
index 52fb9e7bcca4..000000000000
--- a/sound/soc/fsl/mpc8610_hpcd.c
+++ /dev/null
@@ -1,451 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-//
-// Freescale MPC8610HPCD ALSA SoC Machine driver
-//
-// Author: Timur Tabi <timur@freescale.com>
-//
-// Copyright 2007-2010 Freescale Semiconductor, Inc.
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/fsl/guts.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/slab.h>
-#include <sound/soc.h>
-
-#include "fsl_dma.h"
-#include "fsl_ssi.h"
-#include "fsl_utils.h"
-
-/* There's only one global utilities register */
-static phys_addr_t guts_phys;
-
-/**
- * mpc8610_hpcd_data: machine-specific ASoC device data
- *
- * This structure contains data for a single sound platform device on an
- * MPC8610 HPCD.  Some of the data is taken from the device tree.
- */
-struct mpc8610_hpcd_data {
-	struct snd_soc_dai_link dai[2];
-	struct snd_soc_card card;
-	unsigned int dai_format;
-	unsigned int codec_clk_direction;
-	unsigned int cpu_clk_direction;
-	unsigned int clk_frequency;
-	unsigned int ssi_id;		/* 0 = SSI1, 1 = SSI2, etc */
-	unsigned int dma_id[2];		/* 0 = DMA1, 1 = DMA2, etc */
-	unsigned int dma_channel_id[2]; /* 0 = ch 0, 1 = ch 1, etc*/
-	char codec_dai_name[DAI_NAME_SIZE];
-	char platform_name[2][DAI_NAME_SIZE]; /* One for each DMA channel */
-};
-
-/**
- * mpc8610_hpcd_machine_probe: initialize the board
- *
- * This function is used to initialize the board-specific hardware.
- *
- * Here we program the DMACR and PMUXCR registers.
- */
-static int mpc8610_hpcd_machine_probe(struct snd_soc_card *card)
-{
-	struct mpc8610_hpcd_data *machine_data =
-		container_of(card, struct mpc8610_hpcd_data, card);
-	struct ccsr_guts __iomem *guts;
-
-	guts = ioremap(guts_phys, sizeof(struct ccsr_guts));
-	if (!guts) {
-		dev_err(card->dev, "could not map global utilities\n");
-		return -ENOMEM;
-	}
-
-	/* Program the signal routing between the SSI and the DMA */
-	guts_set_dmacr(guts, machine_data->dma_id[0],
-		       machine_data->dma_channel_id[0],
-		       CCSR_GUTS_DMACR_DEV_SSI);
-	guts_set_dmacr(guts, machine_data->dma_id[1],
-		       machine_data->dma_channel_id[1],
-		       CCSR_GUTS_DMACR_DEV_SSI);
-
-	guts_set_pmuxcr_dma(guts, machine_data->dma_id[0],
-			    machine_data->dma_channel_id[0], 0);
-	guts_set_pmuxcr_dma(guts, machine_data->dma_id[1],
-			    machine_data->dma_channel_id[1], 0);
-
-	switch (machine_data->ssi_id) {
-	case 0:
-		clrsetbits_be32(&guts->pmuxcr,
-			CCSR_GUTS_PMUXCR_SSI1_MASK, CCSR_GUTS_PMUXCR_SSI1_SSI);
-		break;
-	case 1:
-		clrsetbits_be32(&guts->pmuxcr,
-			CCSR_GUTS_PMUXCR_SSI2_MASK, CCSR_GUTS_PMUXCR_SSI2_SSI);
-		break;
-	}
-
-	iounmap(guts);
-
-	return 0;
-}
-
-/**
- * mpc8610_hpcd_startup: program the board with various hardware parameters
- *
- * This function takes board-specific information, like clock frequencies
- * and serial data formats, and passes that information to the codec and
- * transport drivers.
- */
-static int mpc8610_hpcd_startup(struct snd_pcm_substream *substream)
-{
-	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
-	struct mpc8610_hpcd_data *machine_data =
-		container_of(rtd->card, struct mpc8610_hpcd_data, card);
-	struct device *dev = rtd->card->dev;
-	int ret = 0;
-
-	/* Tell the codec driver what the serial protocol is. */
-	ret = snd_soc_dai_set_fmt(snd_soc_rtd_to_codec(rtd, 0), machine_data->dai_format);
-	if (ret < 0) {
-		dev_err(dev, "could not set codec driver audio format\n");
-		return ret;
-	}
-
-	/*
-	 * Tell the codec driver what the MCLK frequency is, and whether it's
-	 * a slave or master.
-	 */
-	ret = snd_soc_dai_set_sysclk(snd_soc_rtd_to_codec(rtd, 0), 0,
-				     machine_data->clk_frequency,
-				     machine_data->codec_clk_direction);
-	if (ret < 0) {
-		dev_err(dev, "could not set codec driver clock params\n");
-		return ret;
-	}
-
-	return 0;
-}
-
-/**
- * mpc8610_hpcd_machine_remove: Remove the sound device
- *
- * This function is called to remove the sound device for one SSI.  We
- * de-program the DMACR and PMUXCR register.
- */
-static int mpc8610_hpcd_machine_remove(struct snd_soc_card *card)
-{
-	struct mpc8610_hpcd_data *machine_data =
-		container_of(card, struct mpc8610_hpcd_data, card);
-	struct ccsr_guts __iomem *guts;
-
-	guts = ioremap(guts_phys, sizeof(struct ccsr_guts));
-	if (!guts) {
-		dev_err(card->dev, "could not map global utilities\n");
-		return -ENOMEM;
-	}
-
-	/* Restore the signal routing */
-
-	guts_set_dmacr(guts, machine_data->dma_id[0],
-		       machine_data->dma_channel_id[0], 0);
-	guts_set_dmacr(guts, machine_data->dma_id[1],
-		       machine_data->dma_channel_id[1], 0);
-
-	switch (machine_data->ssi_id) {
-	case 0:
-		clrsetbits_be32(&guts->pmuxcr,
-			CCSR_GUTS_PMUXCR_SSI1_MASK, CCSR_GUTS_PMUXCR_SSI1_LA);
-		break;
-	case 1:
-		clrsetbits_be32(&guts->pmuxcr,
-			CCSR_GUTS_PMUXCR_SSI2_MASK, CCSR_GUTS_PMUXCR_SSI2_LA);
-		break;
-	}
-
-	iounmap(guts);
-
-	return 0;
-}
-
-/**
- * mpc8610_hpcd_ops: ASoC machine driver operations
- */
-static const struct snd_soc_ops mpc8610_hpcd_ops = {
-	.startup = mpc8610_hpcd_startup,
-};
-
-/**
- * mpc8610_hpcd_probe: platform probe function for the machine driver
- *
- * Although this is a machine driver, the SSI node is the "master" node with
- * respect to audio hardware connections.  Therefore, we create a new ASoC
- * device for each new SSI node that has a codec attached.
- */
-static int mpc8610_hpcd_probe(struct platform_device *pdev)
-{
-	struct device *dev = pdev->dev.parent;
-	/* ssi_pdev is the platform device for the SSI node that probed us */
-	struct platform_device *ssi_pdev = to_platform_device(dev);
-	struct device_node *np = ssi_pdev->dev.of_node;
-	struct device_node *codec_np = NULL;
-	struct mpc8610_hpcd_data *machine_data;
-	struct snd_soc_dai_link_component *comp;
-	int ret;
-	const char *sprop;
-	const u32 *iprop;
-
-	/* Find the codec node for this SSI. */
-	codec_np = of_parse_phandle(np, "codec-handle", 0);
-	if (!codec_np) {
-		dev_err(dev, "invalid codec node\n");
-		return -EINVAL;
-	}
-
-	machine_data = kzalloc(sizeof(struct mpc8610_hpcd_data), GFP_KERNEL);
-	if (!machine_data) {
-		ret = -ENOMEM;
-		goto error_alloc;
-	}
-
-	comp = devm_kzalloc(&pdev->dev, 6 * sizeof(*comp), GFP_KERNEL);
-	if (!comp) {
-		ret = -ENOMEM;
-		goto error_alloc;
-	}
-
-	machine_data->dai[0].cpus	= &comp[0];
-	machine_data->dai[0].codecs	= &comp[1];
-	machine_data->dai[0].platforms	= &comp[2];
-
-	machine_data->dai[0].num_cpus		= 1;
-	machine_data->dai[0].num_codecs		= 1;
-	machine_data->dai[0].num_platforms	= 1;
-
-	machine_data->dai[1].cpus	= &comp[3];
-	machine_data->dai[1].codecs	= &comp[4];
-	machine_data->dai[1].platforms	= &comp[5];
-
-	machine_data->dai[1].num_cpus		= 1;
-	machine_data->dai[1].num_codecs		= 1;
-	machine_data->dai[1].num_platforms	= 1;
-
-	machine_data->dai[0].cpus->dai_name = dev_name(&ssi_pdev->dev);
-	machine_data->dai[0].ops = &mpc8610_hpcd_ops;
-
-	/* ASoC core can match codec with device node */
-	machine_data->dai[0].codecs->of_node = codec_np;
-
-	/* The DAI name from the codec (snd_soc_dai_driver.name) */
-	machine_data->dai[0].codecs->dai_name = "cs4270-hifi";
-
-	/* We register two DAIs per SSI, one for playback and the other for
-	 * capture.  Currently, we only support codecs that have one DAI for
-	 * both playback and capture.
-	 */
-	memcpy(&machine_data->dai[1], &machine_data->dai[0],
-	       sizeof(struct snd_soc_dai_link));
-
-	/* Get the device ID */
-	iprop = of_get_property(np, "cell-index", NULL);
-	if (!iprop) {
-		dev_err(&pdev->dev, "cell-index property not found\n");
-		ret = -EINVAL;
-		goto error;
-	}
-	machine_data->ssi_id = be32_to_cpup(iprop);
-
-	/* Get the serial format and clock direction. */
-	sprop = of_get_property(np, "fsl,mode", NULL);
-	if (!sprop) {
-		dev_err(&pdev->dev, "fsl,mode property not found\n");
-		ret = -EINVAL;
-		goto error;
-	}
-
-	if (strcasecmp(sprop, "i2s-slave") == 0) {
-		machine_data->dai_format =
-			SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBP_CFP;
-		machine_data->codec_clk_direction = SND_SOC_CLOCK_OUT;
-		machine_data->cpu_clk_direction = SND_SOC_CLOCK_IN;
-
-		/* In i2s-slave mode, the codec has its own clock source, so we
-		 * need to get the frequency from the device tree and pass it to
-		 * the codec driver.
-		 */
-		iprop = of_get_property(codec_np, "clock-frequency", NULL);
-		if (!iprop || !*iprop) {
-			dev_err(&pdev->dev, "codec bus-frequency "
-				"property is missing or invalid\n");
-			ret = -EINVAL;
-			goto error;
-		}
-		machine_data->clk_frequency = be32_to_cpup(iprop);
-	} else if (strcasecmp(sprop, "i2s-master") == 0) {
-		machine_data->dai_format =
-			SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBC_CFC;
-		machine_data->codec_clk_direction = SND_SOC_CLOCK_IN;
-		machine_data->cpu_clk_direction = SND_SOC_CLOCK_OUT;
-	} else if (strcasecmp(sprop, "lj-slave") == 0) {
-		machine_data->dai_format =
-			SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_CBP_CFP;
-		machine_data->codec_clk_direction = SND_SOC_CLOCK_OUT;
-		machine_data->cpu_clk_direction = SND_SOC_CLOCK_IN;
-	} else if (strcasecmp(sprop, "lj-master") == 0) {
-		machine_data->dai_format =
-			SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_CBC_CFC;
-		machine_data->codec_clk_direction = SND_SOC_CLOCK_IN;
-		machine_data->cpu_clk_direction = SND_SOC_CLOCK_OUT;
-	} else if (strcasecmp(sprop, "rj-slave") == 0) {
-		machine_data->dai_format =
-			SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_CBP_CFP;
-		machine_data->codec_clk_direction = SND_SOC_CLOCK_OUT;
-		machine_data->cpu_clk_direction = SND_SOC_CLOCK_IN;
-	} else if (strcasecmp(sprop, "rj-master") == 0) {
-		machine_data->dai_format =
-			SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_CBC_CFC;
-		machine_data->codec_clk_direction = SND_SOC_CLOCK_IN;
-		machine_data->cpu_clk_direction = SND_SOC_CLOCK_OUT;
-	} else if (strcasecmp(sprop, "ac97-slave") == 0) {
-		machine_data->dai_format =
-			SND_SOC_DAIFMT_AC97 | SND_SOC_DAIFMT_CBP_CFP;
-		machine_data->codec_clk_direction = SND_SOC_CLOCK_OUT;
-		machine_data->cpu_clk_direction = SND_SOC_CLOCK_IN;
-	} else if (strcasecmp(sprop, "ac97-master") == 0) {
-		machine_data->dai_format =
-			SND_SOC_DAIFMT_AC97 | SND_SOC_DAIFMT_CBC_CFC;
-		machine_data->codec_clk_direction = SND_SOC_CLOCK_IN;
-		machine_data->cpu_clk_direction = SND_SOC_CLOCK_OUT;
-	} else {
-		dev_err(&pdev->dev,
-			"unrecognized fsl,mode property '%s'\n", sprop);
-		ret = -EINVAL;
-		goto error;
-	}
-
-	if (!machine_data->clk_frequency) {
-		dev_err(&pdev->dev, "unknown clock frequency\n");
-		ret = -EINVAL;
-		goto error;
-	}
-
-	/* Find the playback DMA channel to use. */
-	machine_data->dai[0].platforms->name = machine_data->platform_name[0];
-	ret = fsl_asoc_get_dma_channel(np, "fsl,playback-dma",
-				       &machine_data->dai[0],
-				       &machine_data->dma_channel_id[0],
-				       &machine_data->dma_id[0]);
-	if (ret) {
-		dev_err(&pdev->dev, "missing/invalid playback DMA phandle\n");
-		goto error;
-	}
-
-	/* Find the capture DMA channel to use. */
-	machine_data->dai[1].platforms->name = machine_data->platform_name[1];
-	ret = fsl_asoc_get_dma_channel(np, "fsl,capture-dma",
-				       &machine_data->dai[1],
-				       &machine_data->dma_channel_id[1],
-				       &machine_data->dma_id[1]);
-	if (ret) {
-		dev_err(&pdev->dev, "missing/invalid capture DMA phandle\n");
-		goto error;
-	}
-
-	/* Initialize our DAI data structure.  */
-	machine_data->dai[0].stream_name = "playback";
-	machine_data->dai[1].stream_name = "capture";
-	machine_data->dai[0].name = machine_data->dai[0].stream_name;
-	machine_data->dai[1].name = machine_data->dai[1].stream_name;
-
-	machine_data->card.probe = mpc8610_hpcd_machine_probe;
-	machine_data->card.remove = mpc8610_hpcd_machine_remove;
-	machine_data->card.name = pdev->name; /* The platform driver name */
-	machine_data->card.owner = THIS_MODULE;
-	machine_data->card.dev = &pdev->dev;
-	machine_data->card.num_links = 2;
-	machine_data->card.dai_link = machine_data->dai;
-
-	/* Register with ASoC */
-	ret = snd_soc_register_card(&machine_data->card);
-	if (ret) {
-		dev_err(&pdev->dev, "could not register card\n");
-		goto error;
-	}
-
-	of_node_put(codec_np);
-
-	return 0;
-
-error:
-	kfree(machine_data);
-error_alloc:
-	of_node_put(codec_np);
-	return ret;
-}
-
-/**
- * mpc8610_hpcd_remove: remove the platform device
- *
- * This function is called when the platform device is removed.
- */
-static void mpc8610_hpcd_remove(struct platform_device *pdev)
-{
-	struct snd_soc_card *card = platform_get_drvdata(pdev);
-	struct mpc8610_hpcd_data *machine_data =
-		container_of(card, struct mpc8610_hpcd_data, card);
-
-	snd_soc_unregister_card(card);
-	kfree(machine_data);
-}
-
-static struct platform_driver mpc8610_hpcd_driver = {
-	.probe = mpc8610_hpcd_probe,
-	.remove_new = mpc8610_hpcd_remove,
-	.driver = {
-		/* The name must match 'compatible' property in the device tree,
-		 * in lowercase letters.
-		 */
-		.name = "snd-soc-mpc8610hpcd",
-	},
-};
-
-/**
- * mpc8610_hpcd_init: machine driver initialization.
- *
- * This function is called when this module is loaded.
- */
-static int __init mpc8610_hpcd_init(void)
-{
-	struct device_node *guts_np;
-	struct resource res;
-
-	pr_info("Freescale MPC8610 HPCD ALSA SoC machine driver\n");
-
-	/* Get the physical address of the global utilities registers */
-	guts_np = of_find_compatible_node(NULL, NULL, "fsl,mpc8610-guts");
-	if (of_address_to_resource(guts_np, 0, &res)) {
-		pr_err("mpc8610-hpcd: missing/invalid global utilities node\n");
-		of_node_put(guts_np);
-		return -EINVAL;
-	}
-	guts_phys = res.start;
-	of_node_put(guts_np);
-
-	return platform_driver_register(&mpc8610_hpcd_driver);
-}
-
-/**
- * mpc8610_hpcd_exit: machine driver exit
- *
- * This function is called when this driver is unloaded.
- */
-static void __exit mpc8610_hpcd_exit(void)
-{
-	platform_driver_unregister(&mpc8610_hpcd_driver);
-}
-
-module_init(mpc8610_hpcd_init);
-module_exit(mpc8610_hpcd_exit);
-
-MODULE_AUTHOR("Timur Tabi <timur@freescale.com>");
-MODULE_DESCRIPTION("Freescale MPC8610 HPCD ALSA SoC machine driver");
-MODULE_LICENSE("GPL v2");