Merge branch 'asoc-5.5' into asoc-next

17 files changed, 170 insertions, 31 deletions

diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h
index c679f6116580..b65220685920 100644
--- a/include/sound/dmaengine_pcm.h
+++ b/include/sound/dmaengine_pcm.h
@@ -83,6 +83,11 @@ void snd_dmaengine_pcm_set_config_from_dai_data(
 	const struct snd_dmaengine_dai_dma_data *dma_data,
 	struct dma_slave_config *config);
 
+int snd_dmaengine_pcm_refine_runtime_hwparams(
+	struct snd_pcm_substream *substream,
+	struct snd_dmaengine_dai_dma_data *dma_data,
+	struct snd_pcm_hardware *hw,
+	struct dma_chan *chan);
 
 /*
  * Try to request the DMA channel using compat_request_channel or
diff --git a/include/sound/hda_codec.h b/include/sound/hda_codec.h
index 9a0393cf024c..ac18f428eda6 100644
--- a/include/sound/hda_codec.h
+++ b/include/sound/hda_codec.h
@@ -254,6 +254,7 @@ struct hda_codec {
 	unsigned int force_pin_prefix:1; /* Add location prefix */
 	unsigned int link_down_at_suspend:1; /* link down at runtime suspend */
 	unsigned int relaxed_resume:1;	/* don't resume forcibly for jack */
+	unsigned int mst_no_extra_pcms:1; /* no backup PCMs for DP-MST */
 
 #ifdef CONFIG_PM
 	unsigned long power_on_acct;
diff --git a/include/sound/pxa2xx-lib.h b/include/sound/pxa2xx-lib.h
index 6758fc12fa84..0feaf16e6ac0 100644
--- a/include/sound/pxa2xx-lib.h
+++ b/include/sound/pxa2xx-lib.h
@@ -10,6 +10,7 @@ struct snd_pcm_substream;
 struct snd_pcm_hw_params;
 struct snd_soc_pcm_runtime;
 struct snd_pcm;
+struct snd_soc_component;
 
 extern int pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
 				struct snd_pcm_hw_params *params);
@@ -23,8 +24,29 @@ extern int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream,
 	struct vm_area_struct *vma);
 extern int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream);
 extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm);
-extern int pxa2xx_soc_pcm_new(struct snd_soc_pcm_runtime *rtd);
-extern const struct snd_pcm_ops pxa2xx_pcm_ops;
+extern void pxa2xx_soc_pcm_free(struct snd_soc_component *component,
+				struct snd_pcm *pcm);
+extern int pxa2xx_soc_pcm_new(struct snd_soc_component *component,
+			      struct snd_soc_pcm_runtime *rtd);
+extern int pxa2xx_soc_pcm_open(struct snd_soc_component *component,
+			       struct snd_pcm_substream *substream);
+extern int pxa2xx_soc_pcm_close(struct snd_soc_component *component,
+				struct snd_pcm_substream *substream);
+extern int pxa2xx_soc_pcm_hw_params(struct snd_soc_component *component,
+				    struct snd_pcm_substream *substream,
+				    struct snd_pcm_hw_params *params);
+extern int pxa2xx_soc_pcm_hw_free(struct snd_soc_component *component,
+				  struct snd_pcm_substream *substream);
+extern int pxa2xx_soc_pcm_prepare(struct snd_soc_component *component,
+				  struct snd_pcm_substream *substream);
+extern int pxa2xx_soc_pcm_trigger(struct snd_soc_component *component,
+				  struct snd_pcm_substream *substream, int cmd);
+extern snd_pcm_uframes_t
+pxa2xx_soc_pcm_pointer(struct snd_soc_component *component,
+		       struct snd_pcm_substream *substream);
+extern int pxa2xx_soc_pcm_mmap(struct snd_soc_component *component,
+			       struct snd_pcm_substream *substream,
+			       struct vm_area_struct *vma);
 
 /* AC97 */
 
diff --git a/include/sound/rt5682.h b/include/sound/rt5682.h
index bf2ee75aabb1..bc2c31734df1 100644
--- a/include/sound/rt5682.h
+++ b/include/sound/rt5682.h
@@ -31,6 +31,7 @@ struct rt5682_platform_data {
 	enum rt5682_dmic1_data_pin dmic1_data_pin;
 	enum rt5682_dmic1_clk_pin dmic1_clk_pin;
 	enum rt5682_jd_src jd_src;
+	unsigned int btndet_delay;
 };
 
 #endif
diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h
index 31f76b6abf71..bbdd1542d6f1 100644
--- a/include/sound/simple_card_utils.h
+++ b/include/sound/simple_card_utils.h
@@ -8,6 +8,7 @@
 #ifndef __SIMPLE_CARD_UTILS_H
 #define __SIMPLE_CARD_UTILS_H
 
+#include <linux/clk.h>
 #include <sound/soc.h>
 
 #define asoc_simple_init_hp(card, sjack, prefix) \
diff --git a/include/sound/soc-acpi-intel-match.h b/include/sound/soc-acpi-intel-match.h
index 6c9929abd90b..20c0bee3b959 100644
--- a/include/sound/soc-acpi-intel-match.h
+++ b/include/sound/soc-acpi-intel-match.h
@@ -24,9 +24,12 @@ extern struct snd_soc_acpi_mach snd_soc_acpi_intel_kbl_machines[];
 extern struct snd_soc_acpi_mach snd_soc_acpi_intel_bxt_machines[];
 extern struct snd_soc_acpi_mach snd_soc_acpi_intel_glk_machines[];
 extern struct snd_soc_acpi_mach snd_soc_acpi_intel_cnl_machines[];
+extern struct snd_soc_acpi_mach snd_soc_acpi_intel_cfl_machines[];
+extern struct snd_soc_acpi_mach snd_soc_acpi_intel_cml_machines[];
 extern struct snd_soc_acpi_mach snd_soc_acpi_intel_icl_machines[];
 extern struct snd_soc_acpi_mach snd_soc_acpi_intel_tgl_machines[];
 extern struct snd_soc_acpi_mach snd_soc_acpi_intel_ehl_machines[];
+extern struct snd_soc_acpi_mach snd_soc_acpi_intel_jsl_machines[];
 
 /*
  * generic table used for HDA codec-based platforms, possibly with
diff --git a/include/sound/soc-acpi.h b/include/sound/soc-acpi.h
index 35b38e41e5b2..c4c997bd0379 100644
--- a/include/sound/soc-acpi.h
+++ b/include/sound/soc-acpi.h
@@ -60,12 +60,14 @@ static inline struct snd_soc_acpi_mach *snd_soc_acpi_codec_list(void *arg)
  * @acpi_ipc_irq_index: used for BYT-CR detection
  * @platform: string used for HDaudio codec support
  * @codec_mask: used for HDAudio support
+ * @common_hdmi_codec_drv: use commom HDAudio HDMI codec driver
  */
 struct snd_soc_acpi_mach_params {
 	u32 acpi_ipc_irq_index;
 	const char *platform;
 	u32 codec_mask;
 	u32 dmic_num;
+	bool common_hdmi_codec_drv;
 };
 
 /**
@@ -75,6 +77,7 @@ struct snd_soc_acpi_mach_params {
  * all firmware/topology related fields.
  *
  * @id: ACPI ID (usually the codec's) used to find a matching machine driver.
+ * @link_mask: describes required board layout, e.g. for SoundWire.
  * @drv_name: machine driver name
  * @fw_filename: firmware file name. Used when SOF is not enabled.
  * @board: board name
@@ -90,6 +93,7 @@ struct snd_soc_acpi_mach_params {
 /* Descriptor for SST ASoC machine driver */
 struct snd_soc_acpi_mach {
 	const u8 id[ACPI_ID_LEN];
+	const u32 link_mask;
 	const char *drv_name;
 	const char *fw_filename;
 	const char *board;
diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h
index 5d80b2eef525..f8fadf0e696a 100644
--- a/include/sound/soc-component.h
+++ b/include/sound/soc-component.h
@@ -3,10 +3,6 @@
  * soc-component.h
  *
  * Copyright (c) 2019 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- * 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.
  */
 #ifndef __SOC_COMPONENT_H
 #define __SOC_COMPONENT_H
@@ -51,8 +47,10 @@ struct snd_soc_component_driver {
 		     unsigned int reg, unsigned int val);
 
 	/* pcm creation and destruction */
-	int (*pcm_new)(struct snd_soc_pcm_runtime *rtd);
-	void (*pcm_free)(struct snd_pcm *pcm);
+	int (*pcm_construct)(struct snd_soc_component *component,
+			     struct snd_soc_pcm_runtime *rtd);
+	void (*pcm_destruct)(struct snd_soc_component *component,
+			     struct snd_pcm *pcm);
 
 	/* component wide operations */
 	int (*set_sysclk)(struct snd_soc_component *component,
@@ -74,7 +72,40 @@ struct snd_soc_component_driver {
 	int (*set_bias_level)(struct snd_soc_component *component,
 			      enum snd_soc_bias_level level);
 
-	const struct snd_pcm_ops *ops;
+	int (*open)(struct snd_soc_component *component,
+		    struct snd_pcm_substream *substream);
+	int (*close)(struct snd_soc_component *component,
+		     struct snd_pcm_substream *substream);
+	int (*ioctl)(struct snd_soc_component *component,
+		     struct snd_pcm_substream *substream,
+		     unsigned int cmd, void *arg);
+	int (*hw_params)(struct snd_soc_component *component,
+			 struct snd_pcm_substream *substream,
+			 struct snd_pcm_hw_params *params);
+	int (*hw_free)(struct snd_soc_component *component,
+		       struct snd_pcm_substream *substream);
+	int (*prepare)(struct snd_soc_component *component,
+		       struct snd_pcm_substream *substream);
+	int (*trigger)(struct snd_soc_component *component,
+		       struct snd_pcm_substream *substream, int cmd);
+	snd_pcm_uframes_t (*pointer)(struct snd_soc_component *component,
+				     struct snd_pcm_substream *substream);
+	int (*get_time_info)(struct snd_soc_component *component,
+		struct snd_pcm_substream *substream, struct timespec *system_ts,
+		struct timespec *audio_ts,
+		struct snd_pcm_audio_tstamp_config *audio_tstamp_config,
+		struct snd_pcm_audio_tstamp_report *audio_tstamp_report);
+	int (*copy_user)(struct snd_soc_component *component,
+			 struct snd_pcm_substream *substream, int channel,
+			 unsigned long pos, void __user *buf,
+			 unsigned long bytes);
+	struct page *(*page)(struct snd_soc_component *component,
+			     struct snd_pcm_substream *substream,
+			     unsigned long offset);
+	int (*mmap)(struct snd_soc_component *component,
+		    struct snd_pcm_substream *substream,
+		    struct vm_area_struct *vma);
+
 	const struct snd_compr_ops *compr_ops;
 
 	/* probe ordering - for components with runtime dependencies */
@@ -381,7 +412,7 @@ struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
 					unsigned long offset);
 int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream,
 			       struct vm_area_struct *vma);
-int snd_soc_pcm_component_new(struct snd_pcm *pcm);
-void snd_soc_pcm_component_free(struct snd_pcm *pcm);
+int snd_soc_pcm_component_new(struct snd_soc_pcm_runtime *rtd);
+void snd_soc_pcm_component_free(struct snd_soc_pcm_runtime *rtd);
 
 #endif /* __SOC_COMPONENT_H */
diff --git a/include/sound/soc-dpcm.h b/include/sound/soc-dpcm.h
index e55aeb00ce2d..b654ebfc8766 100644
--- a/include/sound/soc-dpcm.h
+++ b/include/sound/soc-dpcm.h
@@ -103,15 +103,15 @@ struct snd_soc_dpcm_runtime {
 	int trigger_pending; /* trigger cmd + 1 if pending, 0 if not */
 };
 
-#define for_each_dpcm_fe(be, stream, dpcm)				\
-	list_for_each_entry(dpcm, &(be)->dpcm[stream].fe_clients, list_fe)
-
-#define for_each_dpcm_be(fe, stream, dpcm)				\
-	list_for_each_entry(dpcm, &(fe)->dpcm[stream].be_clients, list_be)
-#define for_each_dpcm_be_safe(fe, stream, dpcm, _dpcm)			\
-	list_for_each_entry_safe(dpcm, _dpcm, &(fe)->dpcm[stream].be_clients, list_be)
-#define for_each_dpcm_be_rollback(fe, stream, dpcm)			\
-	list_for_each_entry_continue_reverse(dpcm, &(fe)->dpcm[stream].be_clients, list_be)
+#define for_each_dpcm_fe(be, stream, _dpcm)				\
+	list_for_each_entry(_dpcm, &(be)->dpcm[stream].fe_clients, list_fe)
+
+#define for_each_dpcm_be(fe, stream, _dpcm)				\
+	list_for_each_entry(_dpcm, &(fe)->dpcm[stream].be_clients, list_be)
+#define for_each_dpcm_be_safe(fe, stream, _dpcm, __dpcm)			\
+	list_for_each_entry_safe(_dpcm, __dpcm, &(fe)->dpcm[stream].be_clients, list_be)
+#define for_each_dpcm_be_rollback(fe, stream, _dpcm)			\
+	list_for_each_entry_continue_reverse(_dpcm, &(fe)->dpcm[stream].be_clients, list_be)
 
 /* can this BE stop and free */
 int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe,
diff --git a/include/sound/soc.h b/include/sound/soc.h
index f264c6509f00..c28a1ed5e8df 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -299,6 +299,12 @@
 	.put = snd_soc_bytes_put, .private_value =	      \
 		((unsigned long)&(struct soc_bytes)           \
 		{.base = xbase, .num_regs = xregs }) }
+#define SND_SOC_BYTES_E(xname, xbase, xregs, xhandler_get, xhandler_put) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
+	.info = snd_soc_bytes_info, .get = xhandler_get, \
+	.put = xhandler_put, .private_value = \
+		((unsigned long)&(struct soc_bytes) \
+		{.base = xbase, .num_regs = xregs }) }
 
 #define SND_SOC_BYTES_MASK(xname, xbase, xregs, xmask)	      \
 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
@@ -739,10 +745,12 @@ struct snd_soc_rtdcom_list {
 struct snd_soc_component*
 snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd,
 		       const char *driver_name);
-#define for_each_rtdcom(rtd, rtdcom) \
-	list_for_each_entry(rtdcom, &(rtd)->component_list, list)
-#define for_each_rtdcom_safe(rtd, rtdcom1, rtdcom2) \
-	list_for_each_entry_safe(rtdcom1, rtdcom2, &(rtd)->component_list, list)
+#define for_each_rtd_components(rtd, rtdcom, _component)		\
+	for (rtdcom = list_first_entry(&(rtd)->component_list,		\
+				       typeof(*rtdcom), list);		\
+	     (&rtdcom->list != &(rtd)->component_list) &&		\
+		     (_component = rtdcom->component);			\
+	     rtdcom = list_next_entry(rtdcom, list))
 
 struct snd_soc_dai_link_component {
 	const char *name;
@@ -845,7 +853,9 @@ struct snd_soc_dai_link {
 	unsigned int ignore:1;
 
 	struct list_head list; /* DAI link list of the soc card */
+#ifdef CONFIG_SND_SOC_TOPOLOGY
 	struct snd_soc_dobj dobj; /* For topology */
+#endif
 };
 #define for_each_link_codecs(link, i, codec)				\
 	for ((i) = 0;							\
@@ -978,6 +988,7 @@ struct snd_soc_card {
 	const char *name;
 	const char *long_name;
 	const char *driver_name;
+	const char *components;
 	char dmi_longname[80];
 	char topology_shortname[32];
 
@@ -1148,7 +1159,6 @@ struct snd_soc_pcm_runtime {
 	struct list_head component_list; /* list of connected components */
 
 	/* bit field */
-	unsigned int dev_registered:1;
 	unsigned int pop_wait:1;
 	unsigned int fe_compr:1; /* for Dynamic PCM */
 };
@@ -1168,7 +1178,9 @@ struct soc_mixer_control {
 	unsigned int sign_bit;
 	unsigned int invert:1;
 	unsigned int autodisable:1;
+#ifdef CONFIG_SND_SOC_TOPOLOGY
 	struct snd_soc_dobj dobj;
+#endif
 };
 
 struct soc_bytes {
@@ -1179,8 +1191,9 @@ struct soc_bytes {
 
 struct soc_bytes_ext {
 	int max;
+#ifdef CONFIG_SND_SOC_TOPOLOGY
 	struct snd_soc_dobj dobj;
-
+#endif
 	/* used for TLV byte control */
 	int (*get)(struct snd_kcontrol *kcontrol, unsigned int __user *bytes,
 			unsigned int size);
@@ -1204,7 +1217,9 @@ struct soc_enum {
 	const char * const *texts;
 	const unsigned int *values;
 	unsigned int autodisable:1;
+#ifdef CONFIG_SND_SOC_TOPOLOGY
 	struct snd_soc_dobj dobj;
+#endif
 };
 
 /* device driver data */
@@ -1325,8 +1340,10 @@ struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card,
 					       int id, const char *name,
 					       const char *stream_name);
 
-int snd_soc_register_dai(struct snd_soc_component *component,
-	struct snd_soc_dai_driver *dai_drv);
+struct snd_soc_dai *snd_soc_register_dai(struct snd_soc_component *component,
+					 struct snd_soc_dai_driver *dai_drv,
+					 bool legacy_dai_naming);
+void snd_soc_unregister_dai(struct snd_soc_dai *dai);
 
 struct snd_soc_dai *snd_soc_find_dai(
 	const struct snd_soc_dai_link_component *dlc);
@@ -1391,6 +1408,11 @@ static inline void snd_soc_dapm_mutex_unlock(struct snd_soc_dapm_context *dapm)
 	mutex_unlock(&dapm->card->dapm_mutex);
 }
 
+/* bypass */
+int snd_soc_pcm_lib_ioctl(struct snd_soc_component *component,
+			  struct snd_pcm_substream *substream,
+			  unsigned int cmd, void *arg);
+
 #include <sound/soc-component.h>
 
 #endif
diff --git a/include/sound/sof.h b/include/sound/sof.h
index 4640566b54fe..479101736ee0 100644
--- a/include/sound/sof.h
+++ b/include/sound/sof.h
@@ -61,6 +61,9 @@ struct sof_dev_desc {
 	/* list of machines using this configuration */
 	struct snd_soc_acpi_mach *machines;
 
+	/* alternate list of machines using this configuration */
+	struct snd_soc_acpi_mach *alt_machines;
+
 	/* Platform resource indexes in BAR / ACPI resources. */
 	/* Must set to -1 if not used - add new items to end */
 	int resindex_lpe_base;
diff --git a/include/sound/sof/dai-imx.h b/include/sound/sof/dai-imx.h
new file mode 100644
index 000000000000..e02fb0b0fae1
--- /dev/null
+++ b/include/sound/sof/dai-imx.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
+/*
+ * Copyright 2019 NXP
+ *
+ * Author: Daniel Baluta <daniel.baluta@nxp.com>
+ */
+
+#ifndef __INCLUDE_SOUND_SOF_DAI_IMX_H__
+#define __INCLUDE_SOUND_SOF_DAI_IMX_H__
+
+#include <sound/sof/header.h>
+
+/* ESAI Configuration Request - SOF_IPC_DAI_ESAI_CONFIG */
+struct sof_ipc_dai_esai_params {
+	struct sof_ipc_hdr hdr;
+
+	/* MCLK */
+	uint16_t reserved1;
+	uint16_t mclk_id;
+	uint32_t mclk_direction;
+
+	uint32_t mclk_rate;	/* MCLK frequency in Hz */
+	uint32_t fsync_rate;	/* FSYNC frequency in Hz */
+	uint32_t bclk_rate;	/* BCLK frequency in Hz */
+
+	/* TDM */
+	uint32_t tdm_slots;
+	uint32_t rx_slots;
+	uint32_t tx_slots;
+	uint16_t tdm_slot_width;
+	uint16_t reserved2;	/* alignment */
+} __packed;
+
+#endif
diff --git a/include/sound/sof/dai.h b/include/sound/sof/dai.h
index 0f1235022146..c229565767e5 100644
--- a/include/sound/sof/dai.h
+++ b/include/sound/sof/dai.h
@@ -11,6 +11,7 @@
 
 #include <sound/sof/header.h>
 #include <sound/sof/dai-intel.h>
+#include <sound/sof/dai-imx.h>
 
 /*
  * DAI Configuration.
@@ -73,6 +74,7 @@ struct sof_ipc_dai_config {
 		struct sof_ipc_dai_dmic_params dmic;
 		struct sof_ipc_dai_hda_params hda;
 		struct sof_ipc_dai_alh_params alh;
+		struct sof_ipc_dai_esai_params esai;
 	};
 } __packed;
 
diff --git a/include/sound/sof/header.h b/include/sound/sof/header.h
index 10f00c08dbb7..bf3edd9c08b4 100644
--- a/include/sound/sof/header.h
+++ b/include/sound/sof/header.h
@@ -9,6 +9,7 @@
 #ifndef __INCLUDE_SOUND_SOF_HEADER_H__
 #define __INCLUDE_SOUND_SOF_HEADER_H__
 
+#include <linux/types.h>
 #include <uapi/sound/sof/abi.h>
 
 /** \addtogroup sof_uapi uAPI
@@ -74,6 +75,7 @@
 #define SOF_IPC_PM_CLK_GET			SOF_CMD_TYPE(0x005)
 #define SOF_IPC_PM_CLK_REQ			SOF_CMD_TYPE(0x006)
 #define SOF_IPC_PM_CORE_ENABLE			SOF_CMD_TYPE(0x007)
+#define SOF_IPC_PM_GATE				SOF_CMD_TYPE(0x008)
 
 /* component runtime config - multiple different types */
 #define SOF_IPC_COMP_SET_VALUE			SOF_CMD_TYPE(0x001)
diff --git a/include/sound/sof/pm.h b/include/sound/sof/pm.h
index 003879401d63..3cf2e0f39d94 100644
--- a/include/sound/sof/pm.h
+++ b/include/sound/sof/pm.h
@@ -45,4 +45,12 @@ struct sof_ipc_pm_core_config {
 	uint32_t enable_mask;
 } __packed;
 
+struct sof_ipc_pm_gate {
+	struct sof_ipc_cmd_hdr hdr;
+	uint32_t flags;	/* platform specific */
+
+	/* reserved for future use */
+	uint32_t reserved[5];
+} __packed;
+
 #endif
diff --git a/include/sound/sof/stream.h b/include/sound/sof/stream.h
index 0b71b381b952..7facefb541b3 100644
--- a/include/sound/sof/stream.h
+++ b/include/sound/sof/stream.h
@@ -83,10 +83,10 @@ struct sof_ipc_stream_params {
 	uint16_t sample_valid_bytes;
 	uint16_t sample_container_bytes;
 
-	/* for notifying host period has completed - 0 means no period IRQ */
 	uint32_t host_period_bytes;
+	uint16_t no_stream_position; /**< 1 means don't send stream position */
 
-	uint32_t reserved[2];
+	uint16_t reserved[3];
 	uint16_t chmap[SOF_IPC_MAX_CHANNELS];	/**< channel map - SOF_CHMAP_ */
 } __packed;
 
diff --git a/include/sound/wm8904.h b/include/sound/wm8904.h
index 14074405f501..88ac1870510e 100644
--- a/include/sound/wm8904.h
+++ b/include/sound/wm8904.h
@@ -120,7 +120,7 @@
  * DRC configurations are specified with a label and a set of register
  * values to write (the enable bits will be ignored).  At runtime an
  * enumerated control will be presented for each DRC block allowing
- * the user to choose the configration to use.
+ * the user to choose the configuration to use.
  *
  * Configurations may be generated by hand or by using the DRC control
  * panel provided by the WISCE - see  http://www.wolfsonmicro.com/wisce/