Merge series "ASoC: remove obsolete drivers" from Arnd Bergmann <arnd@kernel.org>

Arnd Bergmann <arnd@arndb.de>:

From: Arnd Bergmann <arnd@arndb.de>

A few Arm platforms are getting removed in v5.12, this removes
the corresponding sound drivers.

Link: https://lore.kernel.org/linux-arm-kernel/20210120124812.2800027-1-arnd@kernel.org/T/

Arnd Bergmann (2):
  ASoC: remove sirf prima/atlas drivers
  ASoC: remove zte zx drivers

 .../bindings/sound/sirf-audio-codec.txt       |  17 -
 .../devicetree/bindings/sound/sirf-usp.txt    |  27 -
 .../devicetree/bindings/sound/zte,tdm.txt     |  30 -
 .../bindings/sound/zte,zx-aud96p22.txt        |  24 -
 .../devicetree/bindings/sound/zte,zx-i2s.txt  |  45 --
 .../bindings/sound/zte,zx-spdif.txt           |  27 -
 sound/soc/Kconfig                             |   2 -
 sound/soc/Makefile                            |   2 -
 sound/soc/codecs/Makefile                     |   4 -
 sound/soc/codecs/sirf-audio-codec.c           | 575 ------------------
 sound/soc/codecs/zx_aud96p22.c                | 401 ------------
 sound/soc/sirf/Kconfig                        |  21 -
 sound/soc/sirf/Makefile                       |   8 -
 sound/soc/sirf/sirf-audio-port.c              |  86 ---
 sound/soc/sirf/sirf-audio.c                   | 160 -----
 sound/soc/sirf/sirf-usp.c                     | 435 -------------
 sound/soc/sirf/sirf-usp.h                     | 292 ---------
 sound/soc/zte/Kconfig                         |  26 -
 sound/soc/zte/Makefile                        |   4 -
 sound/soc/zte/zx-i2s.c                        | 452 --------------
 sound/soc/zte/zx-spdif.c                      | 363 -----------
 sound/soc/zte/zx-tdm.c                        | 458 --------------
 22 files changed, 3459 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/sound/sirf-audio-codec.txt
 delete mode 100644 Documentation/devicetree/bindings/sound/sirf-usp.txt
 delete mode 100644 Documentation/devicetree/bindings/sound/zte,tdm.txt
 delete mode 100644 Documentation/devicetree/bindings/sound/zte,zx-aud96p22.txt
 delete mode 100644 Documentation/devicetree/bindings/sound/zte,zx-i2s.txt
 delete mode 100644 Documentation/devicetree/bindings/sound/zte,zx-spdif.txt
 delete mode 100644 sound/soc/codecs/sirf-audio-codec.c
 delete mode 100644 sound/soc/codecs/zx_aud96p22.c
 delete mode 100644 sound/soc/sirf/Kconfig
 delete mode 100644 sound/soc/sirf/Makefile
 delete mode 100644 sound/soc/sirf/sirf-audio-port.c
 delete mode 100644 sound/soc/sirf/sirf-audio.c
 delete mode 100644 sound/soc/sirf/sirf-usp.c
 delete mode 100644 sound/soc/sirf/sirf-usp.h
 delete mode 100644 sound/soc/zte/Kconfig
 delete mode 100644 sound/soc/zte/Makefile
 delete mode 100644 sound/soc/zte/zx-i2s.c
 delete mode 100644 sound/soc/zte/zx-spdif.c
 delete mode 100644 sound/soc/zte/zx-tdm.c

--
2.29.2

Documentation/devicetree/bindings/sound/sirf-audio-codec.txt

-SiRF internal audio CODEC
-
-Required properties:
-
-  - compatible : "sirf,atlas6-audio-codec" or "sirf,prima2-audio-codec"
-
-  - reg : the register address of the device.
-
-  - clocks: the clock of SiRF internal audio codec
-
-Example:
-
-audiocodec: audiocodec@b0040000 {
-	compatible = "sirf,atlas6-audio-codec";
-	reg = <0xb0040000 0x10000>;
-	clocks = <&clks 27>;
-};

Documentation/devicetree/bindings/sound/sirf-usp.txt

-* SiRF SoC USP module
-
-Required properties:
-- compatible: "sirf,prima2-usp-pcm"
-- reg: Base address and size entries:
-- dmas: List of DMA controller phandle and DMA request line ordered pairs.
-- dma-names: Identifier string for each DMA request line in the dmas property.
-  These strings correspond 1:1 with the ordered pairs in dmas.
-
-  One of the DMA channels will be responsible for transmission (should be
-  named "tx") and one for reception (should be named "rx").
-
-- clocks: USP controller clock source
-- pinctrl-names: Must contain a "default" entry.
-- pinctrl-NNN: One property must exist for each entry in pinctrl-names.
-
-Example:
-usp0: usp@b0080000 {
-	compatible = "sirf,prima2-usp-pcm";
-	reg = <0xb0080000 0x10000>;
-	clocks = <&clks 28>;
-	dmas = <&dmac1 1>, <&dmac1 2>;
-	dma-names = "rx", "tx";
-	pinctrl-names = "default";
-	pinctrl-0 = <&usp0_only_utfs_pins_a>;
-};
-

Documentation/devicetree/bindings/sound/zte,tdm.txt

-ZTE TDM DAI driver
-
-Required properties:
-
-- compatible : should be one of the following.
-       * zte,zx296718-tdm
-- reg : physical base address of the controller and length of memory mapped
-    region.
-- clocks : Pairs of phandle and specifier referencing the controller's clocks.
-- clock-names: "wclk" for the wclk.
-               "pclk" for the pclk.
--#clock-cells: should be 1.
-- zte,tdm-dma-sysctrl : Reference to the sysctrl controller controlling
-    the dma. includes:
-	phandle of sysctrl.
-	register offset in sysctrl for control dma.
-	mask of the register that be written to sysctrl.
-
-Example:
-
-	tdm: tdm@1487000 {
-		compatible = "zte,zx296718-tdm";
-		reg = <0x01487000 0x1000>;
-		clocks = <&audiocrm AUDIO_TDM_WCLK>, <&audiocrm AUDIO_TDM_PCLK>;
-		clock-names = "wclk", "pclk";
-		#clock-cells = <1>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&tdm_global_pin>;
-		zte,tdm-dma-sysctrl = <&sysctrl 0x10c 4>;
-	};

Documentation/devicetree/bindings/sound/zte,zx-aud96p22.txt

-ZTE ZX AUD96P22 Audio Codec
-
-Required properties:
- - compatible: Must be "zte,zx-aud96p22"
- - #sound-dai-cells: Should be 0
- - reg: I2C bus slave address of AUD96P22
-
-Example:
-
-	i2c0: i2c@1486000 {
-		compatible = "zte,zx296718-i2c";
-		reg = <0x01486000 0x1000>;
-		interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
-		#address-cells = <1>;
-		#size-cells = <0>;
-		clocks = <&audiocrm AUDIO_I2C0_WCLK>;
-		clock-frequency = <1600000>;
-
-		aud96p22: codec@22 {
-			compatible = "zte,zx-aud96p22";
-			#sound-dai-cells = <0>;
-			reg = <0x22>;
-		};
-	};

Documentation/devicetree/bindings/sound/zte,zx-i2s.txt

-ZTE ZX296702 I2S controller
-
-Required properties:
- - compatible : Must be one of:
-	"zte,zx296718-i2s", "zte,zx296702-i2s"
-	"zte,zx296702-i2s"
- - reg : Must contain I2S core's registers location and length
- - clocks : Pairs of phandle and specifier referencing the controller's clocks.
- - clock-names: "wclk" for the wclk, "pclk" for the pclk to the I2S interface.
- - dmas: Pairs of phandle and specifier for the DMA channel that is used by
-   the core. The core expects two dma channels for transmit.
- - dma-names : Must be "tx" and "rx"
-
-For more details on the 'dma', 'dma-names', 'clock' and 'clock-names' properties
-please check:
-	* resource-names.txt
-	* clock/clock-bindings.txt
-	* dma/dma.txt
-
-Example:
-	i2s0: i2s@b005000 {
-		#sound-dai-cells = <0>;
-		compatible = "zte,zx296718-i2s", "zte,zx296702-i2s";
-		reg = <0x0b005000 0x1000>;
-		clocks = <&audiocrm AUDIO_I2S0_WCLK>, <&audiocrm AUDIO_I2S0_PCLK>;
-		clock-names = "wclk", "pclk";
-		interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
-		dmas = <&dma 5>, <&dma 6>;
-		dma-names = "tx", "rx";
-	};
-
-	sound {
-		compatible = "simple-audio-card";
-		simple-audio-card,name = "zx296702_snd";
-		simple-audio-card,format = "left_j";
-		simple-audio-card,bitclock-master = <&sndcodec>;
-		simple-audio-card,frame-master = <&sndcodec>;
-		sndcpu: simple-audio-card,cpu {
-			sound-dai = <&i2s0>;
-		};
-
-		sndcodec: simple-audio-card,codec {
-			sound-dai = <&acodec>;
-		};
-	};

Documentation/devicetree/bindings/sound/zte,zx-spdif.txt

-ZTE ZX296702 SPDIF controller
-
-Required properties:
- - compatible : Must be "zte,zx296702-spdif"
- - reg : Must contain SPDIF core's registers location and length
- - clocks : Pairs of phandle and specifier referencing the controller's clocks.
- - clock-names: "tx" for the clock to the SPDIF interface.
- - dmas: Pairs of phandle and specifier for the DMA channel that is used by
-   the core. The core expects one dma channel for transmit.
- - dma-names : Must be "tx"
-
-For more details on the 'dma', 'dma-names', 'clock' and 'clock-names' properties
-please check:
-	* resource-names.txt
-	* clock/clock-bindings.txt
-	* dma/dma.txt
-
-Example:
-	spdif0: spdif0@b004000 {
-		compatible = "zte,zx296702-spdif";
-		reg = <0x0b004000 0x1000>;
-		clocks = <&lsp0clk ZX296702_SPDIF0_DIV>;
-		clock-names = "tx";
-		interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
-		dmas = <&dma 4>;
-		dma-names = "tx";
-	};

sound/soc/Kconfig

@@ -62,7 +62,6 @@ source "sound/soc/qcom/Kconfig"
 source "sound/soc/rockchip/Kconfig"
 source "sound/soc/samsung/Kconfig"
 source "sound/soc/sh/Kconfig"
-source "sound/soc/sirf/Kconfig"
 source "sound/soc/sof/Kconfig"
 source "sound/soc/spear/Kconfig"
 source "sound/soc/sprd/Kconfig"
@@ -75,7 +74,6 @@ source "sound/soc/uniphier/Kconfig"
 source "sound/soc/ux500/Kconfig"
 source "sound/soc/xilinx/Kconfig"
 source "sound/soc/xtensa/Kconfig"
-source "sound/soc/zte/Kconfig"
 
 # Supported codecs
 source "sound/soc/codecs/Kconfig"

sound/soc/Makefile

@@ -45,7 +45,6 @@ obj-$(CONFIG_SND_SOC)	+= qcom/
 obj-$(CONFIG_SND_SOC)	+= rockchip/
 obj-$(CONFIG_SND_SOC)	+= samsung/
 obj-$(CONFIG_SND_SOC)	+= sh/
-obj-$(CONFIG_SND_SOC)	+= sirf/
 obj-$(CONFIG_SND_SOC)	+= sof/
 obj-$(CONFIG_SND_SOC)	+= spear/
 obj-$(CONFIG_SND_SOC)	+= sprd/
@@ -58,4 +57,3 @@ obj-$(CONFIG_SND_SOC)	+= uniphier/
 obj-$(CONFIG_SND_SOC)	+= ux500/
 obj-$(CONFIG_SND_SOC)	+= xilinx/
 obj-$(CONFIG_SND_SOC)	+= xtensa/
-obj-$(CONFIG_SND_SOC)	+= zte/

sound/soc/codecs/Makefile

@@ -201,7 +201,6 @@ snd-soc-sigmadsp-objs := sigmadsp.o
 snd-soc-sigmadsp-i2c-objs := sigmadsp-i2c.o
 snd-soc-sigmadsp-regmap-objs := sigmadsp-regmap.o
 snd-soc-si476x-objs := si476x.o
-snd-soc-sirf-audio-codec-objs := sirf-audio-codec.o
 snd-soc-spdif-tx-objs := spdif_transmitter.o
 snd-soc-spdif-rx-objs := spdif_receiver.o
 snd-soc-ssm2305-objs := ssm2305.o
@@ -302,7 +301,6 @@ snd-soc-wm9713-objs := wm9713.o
 snd-soc-wm-hubs-objs := wm_hubs.o
 snd-soc-wsa881x-objs := wsa881x.o
 snd-soc-zl38060-objs := zl38060.o
-snd-soc-zx-aud96p22-objs := zx_aud96p22.o
 # Amp
 snd-soc-max9877-objs := max9877.o
 snd-soc-max98504-objs := max98504.o
@@ -516,7 +514,6 @@ obj-$(CONFIG_SND_SOC_SIGMADSP_I2C)	+= snd-soc-sigmadsp-i2c.o
 obj-$(CONFIG_SND_SOC_SIGMADSP_REGMAP)	+= snd-soc-sigmadsp-regmap.o
 obj-$(CONFIG_SND_SOC_SI476X)	+= snd-soc-si476x.o
 obj-$(CONFIG_SND_SOC_SPDIF)	+= snd-soc-spdif-rx.o snd-soc-spdif-tx.o
-obj-$(CONFIG_SND_SOC_SIRF_AUDIO_CODEC) += sirf-audio-codec.o
 obj-$(CONFIG_SND_SOC_SSM2305)	+= snd-soc-ssm2305.o
 obj-$(CONFIG_SND_SOC_SSM2518)	+= snd-soc-ssm2518.o
 obj-$(CONFIG_SND_SOC_SSM2602)	+= snd-soc-ssm2602.o
@@ -618,7 +615,6 @@ obj-$(CONFIG_SND_SOC_WM_ADSP)	+= snd-soc-wm-adsp.o
 obj-$(CONFIG_SND_SOC_WM_HUBS)	+= snd-soc-wm-hubs.o
 obj-$(CONFIG_SND_SOC_WSA881X)	+= snd-soc-wsa881x.o
 obj-$(CONFIG_SND_SOC_ZL38060)	+= snd-soc-zl38060.o
-obj-$(CONFIG_SND_SOC_ZX_AUD96P22) += snd-soc-zx-aud96p22.o
 
 # Amp
 obj-$(CONFIG_SND_SOC_MAX9877)	+= snd-soc-max9877.o

sound/soc/sirf/Kconfig

-# SPDX-License-Identifier: GPL-2.0-only
-config SND_SOC_SIRF
-	tristate "SoC Audio for the SiRF SoC chips"
-	depends on ARCH_SIRF || COMPILE_TEST
-	select SND_SOC_GENERIC_DMAENGINE_PCM
-
-config SND_SOC_SIRF_AUDIO
-	tristate "SoC Audio support for SiRF internal audio codec"
-	depends on SND_SOC_SIRF
-	select SND_SOC_SIRF_AUDIO_CODEC
-	select SND_SOC_SIRF_AUDIO_PORT
-
-config SND_SOC_SIRF_AUDIO_PORT
-	select REGMAP_MMIO
-	tristate
-
-config SND_SOC_SIRF_USP
-	tristate "SoC Audio (I2S protocol) for SiRF SoC USP interface"
-	depends on SND_SOC_SIRF
-	select REGMAP_MMIO
-	tristate

sound/soc/sirf/Makefile

-# SPDX-License-Identifier: GPL-2.0
-snd-soc-sirf-audio-objs := sirf-audio.o
-snd-soc-sirf-audio-port-objs := sirf-audio-port.o
-snd-soc-sirf-usp-objs := sirf-usp.o
-
-obj-$(CONFIG_SND_SOC_SIRF_AUDIO) += snd-soc-sirf-audio.o
-obj-$(CONFIG_SND_SOC_SIRF_AUDIO_PORT) += snd-soc-sirf-audio-port.o
-obj-$(CONFIG_SND_SOC_SIRF_USP) += snd-soc-sirf-usp.o

sound/soc/sirf/sirf-audio-port.c

-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * SiRF Audio port driver
- *
- * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
- */
-#include <linux/module.h>
-#include <sound/soc.h>
-#include <sound/dmaengine_pcm.h>
-
-struct sirf_audio_port {
-	struct regmap *regmap;
-	struct snd_dmaengine_dai_dma_data playback_dma_data;
-	struct snd_dmaengine_dai_dma_data capture_dma_data;
-};
-
-
-static int sirf_audio_port_dai_probe(struct snd_soc_dai *dai)
-{
-	struct sirf_audio_port *port = snd_soc_dai_get_drvdata(dai);
-
-	snd_soc_dai_init_dma_data(dai, &port->playback_dma_data,
-			&port->capture_dma_data);
-	return 0;
-}
-
-static struct snd_soc_dai_driver sirf_audio_port_dai = {
-	.probe = sirf_audio_port_dai_probe,
-	.name = "sirf-audio-port",
-	.id = 0,
-	.playback = {
-		.channels_min = 2,
-		.channels_max = 2,
-		.rates = SNDRV_PCM_RATE_48000,
-		.formats = SNDRV_PCM_FMTBIT_S16_LE,
-	},
-	.capture = {
-		.channels_min = 1,
-		.channels_max = 2,
-		.rates = SNDRV_PCM_RATE_48000,
-		.formats = SNDRV_PCM_FMTBIT_S16_LE,
-	},
-};
-
-static const struct snd_soc_component_driver sirf_audio_port_component = {
-	.name       = "sirf-audio-port",
-};
-
-static int sirf_audio_port_probe(struct platform_device *pdev)
-{
-	int ret;
-	struct sirf_audio_port *port;
-
-	port = devm_kzalloc(&pdev->dev,
-			sizeof(struct sirf_audio_port), GFP_KERNEL);
-	if (!port)
-		return -ENOMEM;
-
-	ret = devm_snd_soc_register_component(&pdev->dev,
-			&sirf_audio_port_component, &sirf_audio_port_dai, 1);
-	if (ret)
-		return ret;
-
-	platform_set_drvdata(pdev, port);
-	return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
-}
-
-static const struct of_device_id sirf_audio_port_of_match[] = {
-	{ .compatible = "sirf,audio-port", },
-	{}
-};
-MODULE_DEVICE_TABLE(of, sirf_audio_port_of_match);
-
-static struct platform_driver sirf_audio_port_driver = {
-	.driver = {
-		.name = "sirf-audio-port",
-		.of_match_table = sirf_audio_port_of_match,
-	},
-	.probe = sirf_audio_port_probe,
-};
-
-module_platform_driver(sirf_audio_port_driver);
-
-MODULE_DESCRIPTION("SiRF Audio Port driver");
-MODULE_AUTHOR("RongJun Ying <Rongjun.Ying@csr.com>");
-MODULE_LICENSE("GPL v2");

sound/soc/sirf/sirf-audio.c

-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * SiRF audio card driver
- *
- * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
- */
-
-#include <linux/platform_device.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/gpio.h>
-#include <linux/of_gpio.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-
-struct sirf_audio_card {
-	unsigned int            gpio_hp_pa;
-	unsigned int            gpio_spk_pa;
-};
-
-static int sirf_audio_hp_event(struct snd_soc_dapm_widget *w,
-				struct snd_kcontrol *ctrl, int event)
-{
-	struct snd_soc_dapm_context *dapm = w->dapm;
-	struct snd_soc_card *card = dapm->card;
-	struct sirf_audio_card *sirf_audio_card = snd_soc_card_get_drvdata(card);
-	int on = !SND_SOC_DAPM_EVENT_OFF(event);
-
-	if (gpio_is_valid(sirf_audio_card->gpio_hp_pa))
-		gpio_set_value(sirf_audio_card->gpio_hp_pa, on);
-	return 0;
-}
-
-static int sirf_audio_spk_event(struct snd_soc_dapm_widget *w,
-				struct snd_kcontrol *ctrl, int event)
-{
-	struct snd_soc_dapm_context *dapm = w->dapm;
-	struct snd_soc_card *card = dapm->card;
-	struct sirf_audio_card *sirf_audio_card = snd_soc_card_get_drvdata(card);
-	int on = !SND_SOC_DAPM_EVENT_OFF(event);
-
-	if (gpio_is_valid(sirf_audio_card->gpio_spk_pa))
-		gpio_set_value(sirf_audio_card->gpio_spk_pa, on);
-
-	return 0;
-}
-static const struct snd_soc_dapm_widget sirf_audio_dapm_widgets[] = {
-	SND_SOC_DAPM_HP("Hp", sirf_audio_hp_event),
-	SND_SOC_DAPM_SPK("Ext Spk", sirf_audio_spk_event),
-	SND_SOC_DAPM_MIC("Ext Mic", NULL),
-};
-
-static const struct snd_soc_dapm_route intercon[] = {
-	{"Hp", NULL, "HPOUTL"},
-	{"Hp", NULL, "HPOUTR"},
-	{"Ext Spk", NULL, "SPKOUT"},
-	{"MICIN1", NULL, "Mic Bias"},
-	{"Mic Bias", NULL, "Ext Mic"},
-};
-
-/* Digital audio interface glue - connects codec <--> CPU */
-SND_SOC_DAILINK_DEFS(sirf,
-	DAILINK_COMP_ARRAY(COMP_EMPTY()),
-	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sirf-audio-codec")),
-	DAILINK_COMP_ARRAY(COMP_EMPTY()));
-
-static struct snd_soc_dai_link sirf_audio_dai_link[] = {
-	{
-		.name = "SiRF audio card",
-		.stream_name = "SiRF audio HiFi",
-		SND_SOC_DAILINK_REG(sirf),
-	},
-};
-
-/* Audio machine driver */
-static struct snd_soc_card snd_soc_sirf_audio_card = {
-	.name = "SiRF audio card",
-	.owner = THIS_MODULE,
-	.dai_link = sirf_audio_dai_link,
-	.num_links = ARRAY_SIZE(sirf_audio_dai_link),
-	.dapm_widgets = sirf_audio_dapm_widgets,
-	.num_dapm_widgets = ARRAY_SIZE(sirf_audio_dapm_widgets),
-	.dapm_routes = intercon,
-	.num_dapm_routes = ARRAY_SIZE(intercon),
-};
-
-static int sirf_audio_probe(struct platform_device *pdev)
-{
-	struct snd_soc_card *card = &snd_soc_sirf_audio_card;
-	struct sirf_audio_card *sirf_audio_card;
-	int ret;
-
-	sirf_audio_card = devm_kzalloc(&pdev->dev, sizeof(struct sirf_audio_card),
-			GFP_KERNEL);
-	if (sirf_audio_card == NULL)
-		return -ENOMEM;
-
-	sirf_audio_dai_link[0].cpus->of_node =
-		of_parse_phandle(pdev->dev.of_node, "sirf,audio-platform", 0);
-	sirf_audio_dai_link[0].platforms->of_node =
-		of_parse_phandle(pdev->dev.of_node, "sirf,audio-platform", 0);
-	sirf_audio_dai_link[0].codecs->of_node =
-		of_parse_phandle(pdev->dev.of_node, "sirf,audio-codec", 0);
-	sirf_audio_card->gpio_spk_pa = of_get_named_gpio(pdev->dev.of_node,
-			"spk-pa-gpios", 0);
-	sirf_audio_card->gpio_hp_pa =  of_get_named_gpio(pdev->dev.of_node,
-			"hp-pa-gpios", 0);
-	if (gpio_is_valid(sirf_audio_card->gpio_spk_pa)) {
-		ret = devm_gpio_request_one(&pdev->dev,
-				sirf_audio_card->gpio_spk_pa,
-				GPIOF_OUT_INIT_LOW, "SPA_PA_SD");
-		if (ret) {
-			dev_err(&pdev->dev,
-				"Failed to request GPIO_%d for reset: %d\n",
-				sirf_audio_card->gpio_spk_pa, ret);
-			return ret;
-		}
-	}
-	if (gpio_is_valid(sirf_audio_card->gpio_hp_pa)) {
-		ret = devm_gpio_request_one(&pdev->dev,
-				sirf_audio_card->gpio_hp_pa,
-				GPIOF_OUT_INIT_LOW, "HP_PA_SD");
-		if (ret) {
-			dev_err(&pdev->dev,
-				"Failed to request GPIO_%d for reset: %d\n",
-				sirf_audio_card->gpio_hp_pa, ret);
-			return ret;
-		}
-	}
-
-	card->dev = &pdev->dev;
-	snd_soc_card_set_drvdata(card, sirf_audio_card);
-
-	ret = devm_snd_soc_register_card(&pdev->dev, card);
-	if (ret)
-		dev_err(&pdev->dev, "snd_soc_register_card() failed:%d\n", ret);
-
-	return ret;
-}
-
-static const struct of_device_id sirf_audio_of_match[] = {
-	{.compatible = "sirf,sirf-audio-card", },
-	{ },
-};
-MODULE_DEVICE_TABLE(of, sirf_audio_of_match);
-
-static struct platform_driver sirf_audio_driver = {
-	.driver = {
-		.name = "sirf-audio-card",
-		.pm = &snd_soc_pm_ops,
-		.of_match_table = sirf_audio_of_match,
-	},
-	.probe = sirf_audio_probe,
-};
-module_platform_driver(sirf_audio_driver);
-
-MODULE_AUTHOR("RongJun Ying <RongJun.Ying@csr.com>");
-MODULE_DESCRIPTION("ALSA SoC SIRF audio card driver");
-MODULE_LICENSE("GPL v2");

sound/soc/sirf/sirf-usp.h

-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * arch/arm/mach-prima2/include/mach/sirfsoc_usp.h
- *
- * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
- */
-
-#ifndef _SIRF_USP_H
-#define _SIRF_USP_H
-
-/* USP Registers */
-#define USP_MODE1		0x00
-#define USP_MODE2		0x04
-#define USP_TX_FRAME_CTRL	0x08
-#define USP_RX_FRAME_CTRL	0x0C
-#define USP_TX_RX_ENABLE	0x10
-#define USP_INT_ENABLE		0x14
-#define USP_INT_STATUS		0x18
-#define USP_PIN_IO_DATA		0x1C
-#define USP_RISC_DSP_MODE	0x20
-#define USP_AYSNC_PARAM_REG	0x24
-#define USP_IRDA_X_MODE_DIV	0x28
-#define USP_SM_CFG		0x2C
-#define USP_TX_DMA_IO_CTRL	0x100
-#define USP_TX_DMA_IO_LEN	0x104
-#define USP_TX_FIFO_CTRL	0x108
-#define USP_TX_FIFO_LEVEL_CHK	0x10C
-#define USP_TX_FIFO_OP		0x110
-#define USP_TX_FIFO_STATUS	0x114
-#define USP_TX_FIFO_DATA	0x118
-#define USP_RX_DMA_IO_CTRL	0x120
-#define USP_RX_DMA_IO_LEN	0x124
-#define USP_RX_FIFO_CTRL	0x128
-#define USP_RX_FIFO_LEVEL_CHK	0x12C
-#define USP_RX_FIFO_OP		0x130
-#define USP_RX_FIFO_STATUS	0x134
-#define USP_RX_FIFO_DATA	0x138
-
-/* USP MODE register-1 */
-#define USP_SYNC_MODE			0x00000001
-#define USP_CLOCK_MODE_SLAVE		0x00000002
-#define USP_LOOP_BACK_EN		0x00000004
-#define USP_HPSIR_EN			0x00000008
-#define USP_ENDIAN_CTRL_LSBF		0x00000010
-#define USP_EN				0x00000020
-#define USP_RXD_ACT_EDGE_FALLING	0x00000040
-#define USP_TXD_ACT_EDGE_FALLING	0x00000080
-#define USP_RFS_ACT_LEVEL_LOGIC1	0x00000100
-#define USP_TFS_ACT_LEVEL_LOGIC1	0x00000200
-#define USP_SCLK_IDLE_MODE_TOGGLE	0x00000400
-#define USP_SCLK_IDLE_LEVEL_LOGIC1	0x00000800
-#define USP_SCLK_PIN_MODE_IO	0x00001000
-#define USP_RFS_PIN_MODE_IO	0x00002000
-#define USP_TFS_PIN_MODE_IO	0x00004000
-#define USP_RXD_PIN_MODE_IO	0x00008000
-#define USP_TXD_PIN_MODE_IO	0x00010000
-#define USP_SCLK_IO_MODE_INPUT	0x00020000
-#define USP_RFS_IO_MODE_INPUT	0x00040000
-#define USP_TFS_IO_MODE_INPUT	0x00080000
-#define USP_RXD_IO_MODE_INPUT	0x00100000
-#define USP_TXD_IO_MODE_INPUT	0x00200000
-#define USP_IRDA_WIDTH_DIV_MASK	0x3FC00000
-#define USP_IRDA_WIDTH_DIV_OFFSET	0
-#define USP_IRDA_IDLE_LEVEL_HIGH	0x40000000
-#define USP_TX_UFLOW_REPEAT_ZERO	0x80000000
-#define USP_TX_ENDIAN_MODE		0x00000020
-#define USP_RX_ENDIAN_MODE		0x00000020
-
-/* USP Mode Register-2 */
-#define USP_RXD_DELAY_LEN_MASK		0x000000FF
-#define USP_RXD_DELAY_LEN_OFFSET	0
-
-#define USP_TXD_DELAY_LEN_MASK		0x0000FF00
-#define USP_TXD_DELAY_LEN_OFFSET	8
-
-#define USP_ENA_CTRL_MODE		0x00010000
-#define USP_FRAME_CTRL_MODE		0x00020000
-#define USP_TFS_SOURCE_MODE             0x00040000
-#define USP_TFS_MS_MODE                 0x00080000
-#define USP_CLK_DIVISOR_MASK		0x7FE00000
-#define USP_CLK_DIVISOR_OFFSET		21
-
-#define USP_TFS_CLK_SLAVE_MODE		(1<<20)
-#define USP_RFS_CLK_SLAVE_MODE		(1<<19)
-
-#define USP_IRDA_DATA_WIDTH		0x80000000
-
-/* USP Transmit Frame Control Register */
-
-#define USP_TXC_DATA_LEN_MASK		0x000000FF
-#define USP_TXC_DATA_LEN_OFFSET		0
-
-#define USP_TXC_SYNC_LEN_MASK		0x0000FF00
-#define USP_TXC_SYNC_LEN_OFFSET		8
-
-#define USP_TXC_FRAME_LEN_MASK		0x00FF0000
-#define USP_TXC_FRAME_LEN_OFFSET	16
-
-#define USP_TXC_SHIFTER_LEN_MASK	0x1F000000
-#define USP_TXC_SHIFTER_LEN_OFFSET	24
-
-#define USP_TXC_SLAVE_CLK_SAMPLE	0x20000000
-
-#define USP_TXC_CLK_DIVISOR_MASK	0xC0000000
-#define USP_TXC_CLK_DIVISOR_OFFSET	30
-
-/* USP Receive Frame Control Register */
-
-#define USP_RXC_DATA_LEN_MASK		0x000000FF
-#define USP_RXC_DATA_LEN_OFFSET		0
-
-#define USP_RXC_FRAME_LEN_MASK		0x0000FF00
-#define USP_RXC_FRAME_LEN_OFFSET	8
-
-#define USP_RXC_SHIFTER_LEN_MASK	0x001F0000
-#define USP_RXC_SHIFTER_LEN_OFFSET	16
-
-#define USP_START_EDGE_MODE	0x00800000
-#define USP_I2S_SYNC_CHG	0x00200000
-
-#define USP_RXC_CLK_DIVISOR_MASK	0x0F000000
-#define USP_RXC_CLK_DIVISOR_OFFSET	24
-#define USP_SINGLE_SYNC_MODE		0x00400000
-
-/* Tx - RX Enable Register */
-
-#define USP_RX_ENA		0x00000001
-#define USP_TX_ENA		0x00000002
-
-/* USP Interrupt Enable and status Register */
-#define USP_RX_DONE_INT			0x00000001
-#define USP_TX_DONE_INT			0x00000002
-#define USP_RX_OFLOW_INT		0x00000004
-#define USP_TX_UFLOW_INT		0x00000008
-#define USP_RX_IO_DMA_INT		0x00000010
-#define USP_TX_IO_DMA_INT		0x00000020
-#define USP_RXFIFO_FULL_INT		0x00000040
-#define USP_TXFIFO_EMPTY_INT		0x00000080
-#define USP_RXFIFO_THD_INT		0x00000100
-#define USP_TXFIFO_THD_INT		0x00000200
-#define USP_UART_FRM_ERR_INT		0x00000400
-#define USP_RX_TIMEOUT_INT		0x00000800
-#define USP_TX_ALLOUT_INT		0x00001000
-#define USP_RXD_BREAK_INT		0x00008000
-
-/* All possible TX interruots */
-#define USP_TX_INTERRUPT		(USP_TX_DONE_INT|USP_TX_UFLOW_INT|\
-					USP_TX_IO_DMA_INT|\
-					USP_TXFIFO_EMPTY_INT|\
-					USP_TXFIFO_THD_INT)
-/* All possible RX interruots */
-#define USP_RX_INTERRUPT		(USP_RX_DONE_INT|USP_RX_OFLOW_INT|\
-					USP_RX_IO_DMA_INT|\
-					USP_RXFIFO_FULL_INT|\
-					USP_RXFIFO_THD_INT|\
-					USP_RX_TIMEOUT_INT)
-
-#define USP_INT_ALL        0x1FFF
-
-/* USP Pin I/O Data Register */
-
-#define USP_RFS_PIN_VALUE_MASK	0x00000001
-#define USP_TFS_PIN_VALUE_MASK	0x00000002
-#define USP_RXD_PIN_VALUE_MASK	0x00000004
-#define USP_TXD_PIN_VALUE_MASK	0x00000008
-#define USP_SCLK_PIN_VALUE_MASK	0x00000010
-
-/* USP RISC/DSP Mode Register */
-#define USP_RISC_DSP_SEL	0x00000001
-
-/* USP ASYNC PARAMETER Register*/
-
-#define USP_ASYNC_TIMEOUT_MASK	0x0000FFFF
-#define USP_ASYNC_TIMEOUT_OFFSET	0
-#define USP_ASYNC_TIMEOUT(x)	(((x)&USP_ASYNC_TIMEOUT_MASK) \
-				<<USP_ASYNC_TIMEOUT_OFFSET)
-
-#define USP_ASYNC_DIV2_MASK		0x003F0000
-#define USP_ASYNC_DIV2_OFFSET		16
-
-/* USP TX DMA I/O MODE Register */
-#define USP_TX_MODE_IO			0x00000001
-
-/* USP TX DMA I/O Length Register */
-#define USP_TX_DATA_LEN_MASK		0xFFFFFFFF
-#define USP_TX_DATA_LEN_OFFSET		0
-
-/* USP TX FIFO Control Register */
-#define USP_TX_FIFO_WIDTH_MASK		0x00000003
-#define USP_TX_FIFO_WIDTH_OFFSET	0
-
-#define USP_TX_FIFO_THD_MASK		0x000001FC
-#define USP_TX_FIFO_THD_OFFSET		2
-
-/* USP TX FIFO Level Check Register */
-#define USP_TX_FIFO_LEVEL_CHECK_MASK	0x1F
-#define USP_TX_FIFO_SC_OFFSET	0
-#define USP_TX_FIFO_LC_OFFSET	10
-#define USP_TX_FIFO_HC_OFFSET	20
-
-#define TX_FIFO_SC(x)		(((x) & USP_TX_FIFO_LEVEL_CHECK_MASK) \
-				<< USP_TX_FIFO_SC_OFFSET)
-#define TX_FIFO_LC(x)		(((x) & USP_TX_FIFO_LEVEL_CHECK_MASK) \
-				<< USP_TX_FIFO_LC_OFFSET)
-#define TX_FIFO_HC(x)		(((x) & USP_TX_FIFO_LEVEL_CHECK_MASK) \
-				<< USP_TX_FIFO_HC_OFFSET)
-
-/* USP TX FIFO Operation Register */
-#define USP_TX_FIFO_RESET		0x00000001
-#define USP_TX_FIFO_START		0x00000002
-
-/* USP TX FIFO Status Register */
-#define USP_TX_FIFO_LEVEL_MASK		0x0000007F
-#define USP_TX_FIFO_LEVEL_OFFSET	0
-
-#define USP_TX_FIFO_FULL		0x00000080
-#define USP_TX_FIFO_EMPTY		0x00000100
-
-/* USP TX FIFO Data Register */
-#define USP_TX_FIFO_DATA_MASK		0xFFFFFFFF
-#define USP_TX_FIFO_DATA_OFFSET		0
-
-/* USP RX DMA I/O MODE Register */
-#define USP_RX_MODE_IO			0x00000001
-#define USP_RX_DMA_FLUSH		0x00000004
-
-/* USP RX DMA I/O Length Register */
-#define USP_RX_DATA_LEN_MASK		0xFFFFFFFF
-#define USP_RX_DATA_LEN_OFFSET		0
-
-/* USP RX FIFO Control Register */
-#define USP_RX_FIFO_WIDTH_MASK		0x00000003
-#define USP_RX_FIFO_WIDTH_OFFSET	0
-
-#define USP_RX_FIFO_THD_MASK		0x000001FC
-#define USP_RX_FIFO_THD_OFFSET		2
-
-/* USP RX FIFO Level Check Register */
-
-#define USP_RX_FIFO_LEVEL_CHECK_MASK	0x1F
-#define USP_RX_FIFO_SC_OFFSET	0
-#define USP_RX_FIFO_LC_OFFSET	10
-#define USP_RX_FIFO_HC_OFFSET	20
-
-#define RX_FIFO_SC(x)		(((x) & USP_RX_FIFO_LEVEL_CHECK_MASK) \
-				<< USP_RX_FIFO_SC_OFFSET)
-#define RX_FIFO_LC(x)		(((x) & USP_RX_FIFO_LEVEL_CHECK_MASK) \
-				<< USP_RX_FIFO_LC_OFFSET)
-#define RX_FIFO_HC(x)		(((x) & USP_RX_FIFO_LEVEL_CHECK_MASK) \
-				<< USP_RX_FIFO_HC_OFFSET)
-
-/* USP RX FIFO Operation Register */
-#define USP_RX_FIFO_RESET		0x00000001
-#define USP_RX_FIFO_START		0x00000002
-
-/* USP RX FIFO Status Register */
-
-#define USP_RX_FIFO_LEVEL_MASK		0x0000007F
-#define USP_RX_FIFO_LEVEL_OFFSET	0
-
-#define USP_RX_FIFO_FULL		0x00000080
-#define USP_RX_FIFO_EMPTY		0x00000100
-
-/* USP RX FIFO Data Register */
-
-#define USP_RX_FIFO_DATA_MASK		0xFFFFFFFF
-#define USP_RX_FIFO_DATA_OFFSET		0
-
-/*
- * When rx thd irq occur, sender just disable tx empty irq,
- * Remaining data in tx fifo wil also be sent out.
- */
-#define USP_FIFO_SIZE			128
-#define USP_TX_FIFO_THRESHOLD		(USP_FIFO_SIZE/2)
-#define USP_RX_FIFO_THRESHOLD		(USP_FIFO_SIZE/2)
-
-/* FIFO_WIDTH for the USP_TX_FIFO_CTRL and USP_RX_FIFO_CTRL registers */
-#define USP_FIFO_WIDTH_BYTE  0x00
-#define USP_FIFO_WIDTH_WORD  0x01
-#define USP_FIFO_WIDTH_DWORD 0x02
-
-#define USP_ASYNC_DIV2          16
-
-#define USP_PLUGOUT_RETRY_CNT	2
-
-#define USP_TX_RX_FIFO_WIDTH_DWORD    2
-
-#define SIRF_USP_DIV_MCLK	0
-
-#define SIRF_USP_I2S_TFS_SYNC	0
-#define SIRF_USP_I2S_RFS_SYNC	1
-#endif

sound/soc/zte/Kconfig

-# SPDX-License-Identifier: GPL-2.0-only
-config ZX_SPDIF
-	tristate "ZTE ZX SPDIF Driver Support"
-	depends on ARCH_ZX || COMPILE_TEST
-	depends on COMMON_CLK
-	select SND_SOC_GENERIC_DMAENGINE_PCM
-	help
-	  Say Y or M if you want to add support for codecs attached to the
-	  ZTE ZX SPDIF interface
-
-config ZX_I2S
-	tristate "ZTE ZX I2S Driver Support"
-	depends on ARCH_ZX || COMPILE_TEST
-	depends on COMMON_CLK
-	select SND_SOC_GENERIC_DMAENGINE_PCM
-	help
-	  Say Y or M if you want to add support for codecs attached to the
-	  ZTE ZX I2S interface
-
-config ZX_TDM
-	tristate "ZTE ZX TDM Driver Support"
-	depends on COMMON_CLK
-	select SND_SOC_GENERIC_DMAENGINE_PCM
-	help
-	  Say Y or M if you want to add support for codecs attached to the
-	  ZTE ZX TDM interface

sound/soc/zte/Makefile

-# SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_ZX_SPDIF)	+= zx-spdif.o
-obj-$(CONFIG_ZX_I2S)	+= zx-i2s.o
-obj-$(CONFIG_ZX_TDM)	+= zx-tdm.o

sound/soc/zte/zx-spdif.c

-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2015 Linaro
- *
- * Author: Jun Nie <jun.nie@linaro.org>
- */
-
-#include <linux/clk.h>
-#include <linux/device.h>
-#include <linux/dmaengine.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/of_address.h>
-#include <sound/asoundef.h>
-#include <sound/core.h>
-#include <sound/dmaengine_pcm.h>
-#include <sound/initval.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-#include <sound/soc-dai.h>
-
-#define ZX_CTRL				0x04
-#define ZX_FIFOCTRL			0x08
-#define ZX_INT_STATUS			0x10
-#define ZX_INT_MASK			0x14
-#define ZX_DATA				0x18
-#define ZX_VALID_BIT			0x1c
-#define ZX_CH_STA_1			0x20
-#define ZX_CH_STA_2			0x24
-#define ZX_CH_STA_3			0x28
-#define ZX_CH_STA_4			0x2c
-#define ZX_CH_STA_5			0x30
-#define ZX_CH_STA_6			0x34
-
-#define ZX_CTRL_MODA_16			(0 << 6)
-#define ZX_CTRL_MODA_18			BIT(6)
-#define ZX_CTRL_MODA_20			(2 << 6)
-#define ZX_CTRL_MODA_24			(3 << 6)
-#define ZX_CTRL_MODA_MASK		(3 << 6)
-
-#define ZX_CTRL_ENB			BIT(4)
-#define ZX_CTRL_DNB			(0 << 4)
-#define ZX_CTRL_ENB_MASK		BIT(4)
-
-#define ZX_CTRL_TX_OPEN			BIT(0)
-#define ZX_CTRL_TX_CLOSE		(0 << 0)
-#define ZX_CTRL_TX_MASK			BIT(0)
-
-#define ZX_CTRL_OPEN			(ZX_CTRL_TX_OPEN | ZX_CTRL_ENB)
-#define ZX_CTRL_CLOSE			(ZX_CTRL_TX_CLOSE | ZX_CTRL_DNB)
-
-#define ZX_CTRL_DOUBLE_TRACK		(0 << 8)
-#define ZX_CTRL_LEFT_TRACK		BIT(8)
-#define ZX_CTRL_RIGHT_TRACK		(2 << 8)
-#define ZX_CTRL_TRACK_MASK		(3 << 8)
-
-#define ZX_FIFOCTRL_TXTH_MASK		(0x1f << 8)
-#define ZX_FIFOCTRL_TXTH(x)		(x << 8)
-#define ZX_FIFOCTRL_TX_DMA_EN		BIT(2)
-#define ZX_FIFOCTRL_TX_DMA_DIS		(0 << 2)
-#define ZX_FIFOCTRL_TX_DMA_EN_MASK	BIT(2)
-#define ZX_FIFOCTRL_TX_FIFO_RST		BIT(0)
-#define ZX_FIFOCTRL_TX_FIFO_RST_MASK	BIT(0)
-
-#define ZX_VALID_DOUBLE_TRACK		(0 << 0)
-#define ZX_VALID_LEFT_TRACK		BIT(1)
-#define ZX_VALID_RIGHT_TRACK		(2 << 0)
-#define ZX_VALID_TRACK_MASK		(3 << 0)
-
-#define ZX_SPDIF_CLK_RAT		(2 * 32)
-
-struct zx_spdif_info {
-	struct snd_dmaengine_dai_dma_data	dma_data;
-	struct clk				*dai_clk;
-	void __iomem				*reg_base;
-	resource_size_t				mapbase;
-};
-
-static int zx_spdif_dai_probe(struct snd_soc_dai *dai)
-{
-	struct zx_spdif_info *zx_spdif = dev_get_drvdata(dai->dev);
-
-	snd_soc_dai_set_drvdata(dai, zx_spdif);
-	zx_spdif->dma_data.addr = zx_spdif->mapbase + ZX_DATA;
-	zx_spdif->dma_data.maxburst = 8;
-	snd_soc_dai_init_dma_data(dai, &zx_spdif->dma_data, NULL);
-	return 0;
-}
-
-static int zx_spdif_chanstats(void __iomem *base, unsigned int rate)
-{
-	u32 cstas1;
-
-	switch (rate) {
-	case 22050:
-		cstas1 = IEC958_AES3_CON_FS_22050;
-		break;
-	case 24000:
-		cstas1 = IEC958_AES3_CON_FS_24000;
-		break;
-	case 32000:
-		cstas1 = IEC958_AES3_CON_FS_32000;
-		break;
-	case 44100:
-		cstas1 = IEC958_AES3_CON_FS_44100;
-		break;
-	case 48000:
-		cstas1 = IEC958_AES3_CON_FS_48000;
-		break;
-	case 88200:
-		cstas1 = IEC958_AES3_CON_FS_88200;
-		break;
-	case 96000:
-		cstas1 = IEC958_AES3_CON_FS_96000;
-		break;
-	case 176400:
-		cstas1 = IEC958_AES3_CON_FS_176400;
-		break;
-	case 192000:
-		cstas1 = IEC958_AES3_CON_FS_192000;
-		break;
-	default:
-		return -EINVAL;
-	}
-	cstas1 = cstas1 << 24;
-	cstas1 |= IEC958_AES0_CON_NOT_COPYRIGHT;
-
-	writel_relaxed(cstas1, base + ZX_CH_STA_1);
-	return 0;
-}
-
-static int zx_spdif_hw_params(struct snd_pcm_substream *substream,
-			      struct snd_pcm_hw_params *params,
-			      struct snd_soc_dai *socdai)
-{
-	struct zx_spdif_info *zx_spdif = dev_get_drvdata(socdai->dev);
-	struct zx_spdif_info *spdif = snd_soc_dai_get_drvdata(socdai);
-	struct snd_dmaengine_dai_dma_data *dma_data =
-		snd_soc_dai_get_dma_data(socdai, substream);
-	u32 val, ch_num, rate;
-	int ret;
-
-	dma_data->addr_width = params_width(params) >> 3;
-
-	val = readl_relaxed(zx_spdif->reg_base + ZX_CTRL);
-	val &= ~ZX_CTRL_MODA_MASK;
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
-		val |= ZX_CTRL_MODA_16;
-		break;
-
-	case SNDRV_PCM_FORMAT_S18_3LE:
-		val |= ZX_CTRL_MODA_18;
-		break;
-
-	case SNDRV_PCM_FORMAT_S20_3LE:
-		val |= ZX_CTRL_MODA_20;
-		break;
-
-	case SNDRV_PCM_FORMAT_S24_LE:
-		val |= ZX_CTRL_MODA_24;
-		break;
-	default:
-		dev_err(socdai->dev, "Format not support!\n");
-		return -EINVAL;
-	}
-
-	ch_num = params_channels(params);
-	if (ch_num == 2)
-		val |= ZX_CTRL_DOUBLE_TRACK;
-	else
-		val |= ZX_CTRL_LEFT_TRACK;
-	writel_relaxed(val, zx_spdif->reg_base + ZX_CTRL);
-
-	val = readl_relaxed(zx_spdif->reg_base + ZX_VALID_BIT);
-	val &= ~ZX_VALID_TRACK_MASK;
-	if (ch_num == 2)
-		val |= ZX_VALID_DOUBLE_TRACK;
-	else
-		val |= ZX_VALID_RIGHT_TRACK;
-	writel_relaxed(val, zx_spdif->reg_base + ZX_VALID_BIT);
-
-	rate = params_rate(params);
-	ret = zx_spdif_chanstats(zx_spdif->reg_base, rate);
-	if (ret)
-		return ret;
-	return clk_set_rate(spdif->dai_clk, rate * ch_num * ZX_SPDIF_CLK_RAT);
-}
-
-static void zx_spdif_cfg_tx(void __iomem *base, int on)
-{
-	u32 val;
-
-	val = readl_relaxed(base + ZX_CTRL);
-	val &= ~(ZX_CTRL_ENB_MASK | ZX_CTRL_TX_MASK);
-	val |= on ? ZX_CTRL_OPEN : ZX_CTRL_CLOSE;
-	writel_relaxed(val, base + ZX_CTRL);
-
-	val = readl_relaxed(base + ZX_FIFOCTRL);
-	val &= ~ZX_FIFOCTRL_TX_DMA_EN_MASK;
-	if (on)
-		val |= ZX_FIFOCTRL_TX_DMA_EN;
-	writel_relaxed(val, base + ZX_FIFOCTRL);
-}
-
-static int zx_spdif_trigger(struct snd_pcm_substream *substream, int cmd,
-			    struct snd_soc_dai *dai)
-{
-	u32 val;
-	struct zx_spdif_info *zx_spdif = dev_get_drvdata(dai->dev);
-	int  ret = 0;
-
-	switch (cmd) {
-	case SNDRV_PCM_TRIGGER_START:
-		val = readl_relaxed(zx_spdif->reg_base + ZX_FIFOCTRL);
-		val |= ZX_FIFOCTRL_TX_FIFO_RST;
-		writel_relaxed(val, zx_spdif->reg_base + ZX_FIFOCTRL);
-		fallthrough;
-	case SNDRV_PCM_TRIGGER_RESUME:
-	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		zx_spdif_cfg_tx(zx_spdif->reg_base, true);
-		break;
-
-	case SNDRV_PCM_TRIGGER_STOP:
-	case SNDRV_PCM_TRIGGER_SUSPEND:
-	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		zx_spdif_cfg_tx(zx_spdif->reg_base, false);
-		break;
-
-	default:
-		ret = -EINVAL;
-		break;
-	}
-
-	return ret;
-}
-
-static int zx_spdif_startup(struct snd_pcm_substream *substream,
-			    struct snd_soc_dai *dai)
-{
-	struct zx_spdif_info *zx_spdif = dev_get_drvdata(dai->dev);
-
-	return clk_prepare_enable(zx_spdif->dai_clk);
-}
-
-static void zx_spdif_shutdown(struct snd_pcm_substream *substream,
-			      struct snd_soc_dai *dai)
-{
-	struct zx_spdif_info *zx_spdif = dev_get_drvdata(dai->dev);
-
-	clk_disable_unprepare(zx_spdif->dai_clk);
-}
-
-#define ZX_RATES \
-	(SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
-	SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |\
-	SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000)
-
-#define ZX_FORMAT \
-	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S18_3LE \
-	| SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE)
-
-static const struct snd_soc_dai_ops zx_spdif_dai_ops = {
-	.trigger	= zx_spdif_trigger,
-	.startup	= zx_spdif_startup,
-	.shutdown	= zx_spdif_shutdown,
-	.hw_params	= zx_spdif_hw_params,
-};
-
-static struct snd_soc_dai_driver zx_spdif_dai = {
-	.name = "spdif",
-	.id = 0,
-	.probe = zx_spdif_dai_probe,
-	.playback = {
-		.channels_min = 1,
-		.channels_max = 2,
-		.rates = ZX_RATES,
-		.formats = ZX_FORMAT,
-	},
-	.ops = &zx_spdif_dai_ops,
-};
-
-static const struct snd_soc_component_driver zx_spdif_component = {
-	.name	= "spdif",
-};
-
-static void zx_spdif_dev_init(void __iomem *base)
-{
-	u32 val;
-
-	writel_relaxed(0, base + ZX_CTRL);
-	writel_relaxed(0, base + ZX_INT_MASK);
-	writel_relaxed(0xf, base + ZX_INT_STATUS);
-	writel_relaxed(0x1, base + ZX_FIFOCTRL);
-
-	val = readl_relaxed(base + ZX_FIFOCTRL);
-	val &= ~(ZX_FIFOCTRL_TXTH_MASK | ZX_FIFOCTRL_TX_FIFO_RST_MASK);
-	val |= ZX_FIFOCTRL_TXTH(8);
-	writel_relaxed(val, base + ZX_FIFOCTRL);
-}
-
-static int zx_spdif_probe(struct platform_device *pdev)
-{
-	struct resource *res;
-	struct zx_spdif_info *zx_spdif;
-	int ret;
-
-	zx_spdif = devm_kzalloc(&pdev->dev, sizeof(*zx_spdif), GFP_KERNEL);
-	if (!zx_spdif)
-		return -ENOMEM;
-
-	zx_spdif->dai_clk = devm_clk_get(&pdev->dev, "tx");
-	if (IS_ERR(zx_spdif->dai_clk)) {
-		dev_err(&pdev->dev, "Fail to get clk\n");
-		return PTR_ERR(zx_spdif->dai_clk);
-	}
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	zx_spdif->mapbase = res->start;
-	zx_spdif->reg_base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(zx_spdif->reg_base)) {
-		return PTR_ERR(zx_spdif->reg_base);
-	}
-
-	zx_spdif_dev_init(zx_spdif->reg_base);
-	platform_set_drvdata(pdev, zx_spdif);
-
-	ret = devm_snd_soc_register_component(&pdev->dev, &zx_spdif_component,
-					 &zx_spdif_dai, 1);
-	if (ret) {
-		dev_err(&pdev->dev, "Register DAI failed: %d\n", ret);
-		return ret;
-	}
-
-	ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
-	if (ret)
-		dev_err(&pdev->dev, "Register platform PCM failed: %d\n", ret);
-
-	return ret;
-}
-
-static const struct of_device_id zx_spdif_dt_ids[] = {
-	{ .compatible = "zte,zx296702-spdif", },
-	{}
-};
-MODULE_DEVICE_TABLE(of, zx_spdif_dt_ids);
-
-static struct platform_driver spdif_driver = {
-	.probe = zx_spdif_probe,
-	.driver = {
-		.name = "zx-spdif",
-		.of_match_table = zx_spdif_dt_ids,
-	},
-};
-
-module_platform_driver(spdif_driver);
-
-MODULE_AUTHOR("Jun Nie <jun.nie@linaro.org>");
-MODULE_DESCRIPTION("ZTE SPDIF SoC DAI");
-MODULE_LICENSE("GPL");