diff --git a/include/sound/cs35l56.h b/include/sound/cs35l56.h
index b3300bce74f4..dd7503464651 100644
--- a/include/sound/cs35l56.h
+++ b/include/sound/cs35l56.h
@@ -43,8 +43,6 @@
 #define CS35L56_SWIRE_DP3_CH2_INPUT			0x0004C74
 #define CS35L56_SWIRE_DP3_CH3_INPUT			0x0004C78
 #define CS35L56_SWIRE_DP3_CH4_INPUT			0x0004C7C
-#define CS35L56_SWIRE_DP3_CH5_INPUT			0x0004C80
-#define CS35L56_SWIRE_DP3_CH6_INPUT			0x0004C84
 #define CS35L56_IRQ1_CFG				0x000E000
 #define CS35L56_IRQ1_STATUS				0x000E004
 #define CS35L56_IRQ1_EINT_1				0x000E010
@@ -262,7 +260,6 @@ extern const struct cs_dsp_region cs35l56_dsp1_regions[CS35L56_NUM_DSP_REGIONS];
 extern const char * const cs35l56_tx_input_texts[CS35L56_NUM_INPUT_SRC];
 extern const unsigned int cs35l56_tx_input_values[CS35L56_NUM_INPUT_SRC];
 
-void cs35l56_patch(struct device *dev, struct regmap *regmap, u8 revid);
 void cs35l56_reread_firmware_registers(struct device *dev, struct regmap *regmap);
 int cs35l56_get_bclk_freq_id(unsigned int freq);
 void cs35l56_fill_supply_names(struct regulator_bulk_data *data);
diff --git a/sound/soc/codecs/cs35l56-shared.c b/sound/soc/codecs/cs35l56-shared.c
index d8bc06ad4888..f5fa6bb04d38 100644
--- a/sound/soc/codecs/cs35l56-shared.c
+++ b/sound/soc/codecs/cs35l56-shared.c
@@ -28,8 +28,6 @@ static const struct reg_default cs35l56_reg_defaults[] = {
 	{ CS35L56_SWIRE_DP3_CH2_INPUT,		0x00000019 },
 	{ CS35L56_SWIRE_DP3_CH3_INPUT,		0x00000029 },
 	{ CS35L56_SWIRE_DP3_CH4_INPUT,		0x00000028 },
-	{ CS35L56_SWIRE_DP3_CH5_INPUT,		0x00000018 },
-	{ CS35L56_SWIRE_DP3_CH6_INPUT,		0x00000018 },
 	{ CS35L56_IRQ1_CFG,			0x00000000 },
 	{ CS35L56_IRQ1_MASK_1,			0x83ffffff },
 	{ CS35L56_IRQ1_MASK_2,			0xffff7fff },
@@ -42,29 +40,6 @@ static const struct reg_default cs35l56_reg_defaults[] = {
 	/* CS35L56_MAIN_POSTURE_NUMBER - soft register, no default	*/
 };
 
-/*
- * The Ax devices have different default register values to that of B0,
- * establish a common set of register defaults.
- */
-static const struct reg_sequence cs35l56_reva_patch[] = {
-	{ CS35L56_SWIRE_DP3_CH5_INPUT,	0x00000018 },
-	{ CS35L56_SWIRE_DP3_CH6_INPUT,	0x00000018 },
-};
-
-void cs35l56_patch(struct device *dev, struct regmap *regmap, u8 revid)
-{
-	int ret;
-
-	if (revid >= CS35L56_REVID_B0)
-		return;
-
-	ret = regmap_register_patch(regmap, cs35l56_reva_patch,
-				    ARRAY_SIZE(cs35l56_reva_patch));
-	if (ret)
-		dev_err(dev, "Failed to apply patch: %d\n", ret);
-}
-EXPORT_SYMBOL_NS_GPL(cs35l56_patch, SND_SOC_CS35L56_SHARED);
-
 static bool cs35l56_is_dsp_memory(unsigned int reg)
 {
 	switch (reg) {
@@ -114,8 +89,6 @@ static bool cs35l56_readable_reg(struct device *dev, unsigned int reg)
 	case CS35L56_SWIRE_DP3_CH2_INPUT:
 	case CS35L56_SWIRE_DP3_CH3_INPUT:
 	case CS35L56_SWIRE_DP3_CH4_INPUT:
-	case CS35L56_SWIRE_DP3_CH5_INPUT:
-	case CS35L56_SWIRE_DP3_CH6_INPUT:
 	case CS35L56_IRQ1_CFG:
 	case CS35L56_IRQ1_STATUS:
 	case CS35L56_IRQ1_EINT_1 ... CS35L56_IRQ1_EINT_8:
diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c
index 1b80cae5026e..c0a857cfb8cb 100644
--- a/sound/soc/codecs/cs35l56.c
+++ b/sound/soc/codecs/cs35l56.c
@@ -166,24 +166,6 @@ static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_sdw1tx4_enum,
 static const struct snd_kcontrol_new sdw1_tx4_mux =
 	SOC_DAPM_ENUM("SDW1TX4 SRC", cs35l56_sdw1tx4_enum);
 
-static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_sdw1tx5_enum,
-				CS35L56_SWIRE_DP3_CH5_INPUT,
-				0, CS35L56_SWIRETXn_SRC_MASK,
-				cs35l56_tx_input_texts,
-				cs35l56_tx_input_values);
-
-static const struct snd_kcontrol_new sdw1_tx5_mux =
-	SOC_DAPM_ENUM("SDW1TX5 SRC", cs35l56_sdw1tx5_enum);
-
-static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_sdw1tx6_enum,
-				CS35L56_SWIRE_DP3_CH6_INPUT,
-				0, CS35L56_SWIRETXn_SRC_MASK,
-				cs35l56_tx_input_texts,
-				cs35l56_tx_input_values);
-
-static const struct snd_kcontrol_new sdw1_tx6_mux =
-	SOC_DAPM_ENUM("SDW1TX6 SRC", cs35l56_sdw1tx6_enum);
-
 static int cs35l56_play_event(struct snd_soc_dapm_widget *w,
 			      struct snd_kcontrol *kcontrol, int event)
 {
@@ -251,8 +233,6 @@ static const struct snd_soc_dapm_widget cs35l56_dapm_widgets[] = {
 	SND_SOC_DAPM_MUX("SDW1 TX2 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx2_mux),
 	SND_SOC_DAPM_MUX("SDW1 TX3 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx3_mux),
 	SND_SOC_DAPM_MUX("SDW1 TX4 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx4_mux),
-	SND_SOC_DAPM_MUX("SDW1 TX5 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx5_mux),
-	SND_SOC_DAPM_MUX("SDW1 TX6 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx6_mux),
 
 	SND_SOC_DAPM_SIGGEN("VMON ADC"),
 	SND_SOC_DAPM_SIGGEN("IMON ADC"),
@@ -318,14 +298,10 @@ static const struct snd_soc_dapm_route cs35l56_audio_map[] = {
 	CS35L56_SRC_ROUTE("SDW1 TX2")
 	CS35L56_SRC_ROUTE("SDW1 TX3")
 	CS35L56_SRC_ROUTE("SDW1 TX4")
-	CS35L56_SRC_ROUTE("SDW1 TX5")
-	CS35L56_SRC_ROUTE("SDW1 TX6")
 	{ "SDW1 Capture", NULL, "SDW1 TX1 Source" },
 	{ "SDW1 Capture", NULL, "SDW1 TX2 Source" },
 	{ "SDW1 Capture", NULL, "SDW1 TX3 Source" },
 	{ "SDW1 Capture", NULL, "SDW1 TX4 Source" },
-	{ "SDW1 Capture", NULL, "SDW1 TX5 Source" },
-	{ "SDW1 Capture", NULL, "SDW1 TX6 Source" },
 };
 
 static int cs35l56_dsp_event(struct snd_soc_dapm_widget *w,
@@ -779,7 +755,7 @@ static struct snd_soc_dai_driver cs35l56_dai[] = {
 		.capture = {
 			.stream_name = "SDW1 Capture",
 			.channels_min = 1,
-			.channels_max = 6,
+			.channels_max = 4,
 			.rates = CS35L56_RATES,
 			.formats = CS35L56_TX_FORMATS,
 		},
@@ -1535,8 +1511,6 @@ int cs35l56_init(struct cs35l56_private *cs35l56)
 	dev_info(cs35l56->dev, "Cirrus Logic CS35L56%s Rev %02X OTP%d\n",
 		 cs35l56->secured ? "s" : "", cs35l56->rev, otpid);
 
-	cs35l56_patch(cs35l56->dev, cs35l56->regmap, cs35l56->rev);
-
 	/* Wake source and *_BLOCKED interrupts default to unmasked, so mask them */
 	regmap_write(cs35l56->regmap, CS35L56_IRQ1_MASK_20, 0xffffffff);
 	regmap_update_bits(cs35l56->regmap, CS35L56_IRQ1_MASK_1,