[PATCH AUTOSEL 6.11 06/21] ASoC: codecs: rt5640: Always disable IRQs from rt5640_cancel_work()

[PATCH AUTOSEL 6.11 06/21] ASoC: codecs: rt5640: Always disable IRQs from rt5640_cancel_work()

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 032532f91a1d06d0750f16c49a9698ef5374a68f ]

Disable IRQs from rt5640_cancel_work(), this fixes a crash caused by
the IRQ never getting freed when the driver is unbound from the i2c_client
with jack-detection active:

[  193.138780] rt5640 i2c-rt5640: ASoC: unknown pin LDO2
[  193.138830] rt5640 i2c-rt5640: ASoC: unknown pin MICBIAS1
[  193.671218] BUG: kernel NULL pointer dereference, address: 0000000000000078
[  193.671239] #PF: supervisor read access in kernel mode
[  193.671248] #PF: error_code(0x0000) - not-present page
...
[  193.671531]  ? asm_exc_page_fault+0x22/0x30
[  193.671551]  ? rt5640_jack_inserted+0x10/0x80 [snd_soc_rt5640]
[  193.671574]  rt5640_detect_headset+0x93/0x130 [snd_soc_rt5640]
[  193.671596]  rt5640_jack_work+0x93/0x355 [snd_soc_rt5640]

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20241024215612.92147-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/rt5640.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c
index 16f3425a3e35c..855139348edb4 100644
--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -2419,10 +2419,20 @@ static irqreturn_t rt5640_jd_gpio_irq(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static void rt5640_cancel_work(void *data)
+static void rt5640_disable_irq_and_cancel_work(void *data)
 {
 	struct rt5640_priv *rt5640 = data;
 
+	if (rt5640->jd_gpio_irq_requested) {
+		free_irq(rt5640->jd_gpio_irq, rt5640);
+		rt5640->jd_gpio_irq_requested = false;
+	}
+
+	if (rt5640->irq_requested) {
+		free_irq(rt5640->irq, rt5640);
+		rt5640->irq_requested = false;
+	}
+
 	cancel_delayed_work_sync(&rt5640->jack_work);
 	cancel_delayed_work_sync(&rt5640->bp_work);
 }
@@ -2463,13 +2473,7 @@ static void rt5640_disable_jack_detect(struct snd_soc_component *component)
 	if (!rt5640->jack)
 		return;
 
-	if (rt5640->jd_gpio_irq_requested)
-		free_irq(rt5640->jd_gpio_irq, rt5640);
-
-	if (rt5640->irq_requested)
-		free_irq(rt5640->irq, rt5640);
-
-	rt5640_cancel_work(rt5640);
+	rt5640_disable_irq_and_cancel_work(rt5640);
 
 	if (rt5640->jack->status & SND_JACK_MICROPHONE) {
 		rt5640_disable_micbias1_ovcd_irq(component);
@@ -2477,8 +2481,6 @@ static void rt5640_disable_jack_detect(struct snd_soc_component *component)
 		snd_soc_jack_report(rt5640->jack, 0, SND_JACK_BTN_0);
 	}
 
-	rt5640->jd_gpio_irq_requested = false;
-	rt5640->irq_requested = false;
 	rt5640->jd_gpio = NULL;
 	rt5640->jack = NULL;
 }
@@ -2798,7 +2800,8 @@ static int rt5640_suspend(struct snd_soc_component *component)
 	if (rt5640->jack) {
 		/* disable jack interrupts during system suspend */
 		disable_irq(rt5640->irq);
-		rt5640_cancel_work(rt5640);
+		cancel_delayed_work_sync(&rt5640->jack_work);
+		cancel_delayed_work_sync(&rt5640->bp_work);
 	}
 
 	snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF);
@@ -3032,7 +3035,7 @@ static int rt5640_i2c_probe(struct i2c_client *i2c)
 	INIT_DELAYED_WORK(&rt5640->jack_work, rt5640_jack_work);
 
 	/* Make sure work is stopped on probe-error / remove */
-	ret = devm_add_action_or_reset(&i2c->dev, rt5640_cancel_work, rt5640);
+	ret = devm_add_action_or_reset(&i2c->dev, rt5640_disable_irq_and_cancel_work, rt5640);
 	if (ret)
 		return ret;
 
-- 
2.43.0

[PATCH AUTOSEL 6.11 07/21] ASoC: Intel: bytcr_rt5640: Add support for non ACPI instantiated codec

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit d48696b915527b5bcdd207a299aec03fb037eb17 ]

On some x86 Bay Trail tablets which shipped with Android as factory OS,
the DSDT is so broken that the codec needs to be manually instantatiated
by the special x86-android-tablets.ko "fixup" driver for cases like this.

This means that the codec-dev cannot be retrieved through its ACPI fwnode,
add support to the bytcr_rt5640 machine driver for such manually
instantiated rt5640 i2c_clients.

An example of a tablet which needs this is the Vexia EDU ATLA 10 tablet,
which has been distributed to schools in the Spanish Andalucía region.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20241024211615.79518-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/intel/boards/bytcr_rt5640.c | 33 ++++++++++++++++++++++++---
 1 file changed, 30 insertions(+), 3 deletions(-)

diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c
index 4479825c08b5e..ba4293ae7c24f 100644
--- a/sound/soc/intel/boards/bytcr_rt5640.c
+++ b/sound/soc/intel/boards/bytcr_rt5640.c
@@ -17,6 +17,7 @@
 #include <linux/acpi.h>
 #include <linux/clk.h>
 #include <linux/device.h>
+#include <linux/device/bus.h>
 #include <linux/dmi.h>
 #include <linux/gpio/consumer.h>
 #include <linux/gpio/machine.h>
@@ -32,6 +33,8 @@
 #include "../atom/sst-atom-controls.h"
 #include "../common/soc-intel-quirks.h"
 
+#define BYT_RT5640_FALLBACK_CODEC_DEV_NAME	"i2c-rt5640"
+
 enum {
 	BYT_RT5640_DMIC1_MAP,
 	BYT_RT5640_DMIC2_MAP,
@@ -1698,9 +1701,33 @@ static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
 
 	codec_dev = acpi_get_first_physical_node(adev);
 	acpi_dev_put(adev);
-	if (!codec_dev)
-		return -EPROBE_DEFER;
-	priv->codec_dev = get_device(codec_dev);
+
+	if (codec_dev) {
+		priv->codec_dev = get_device(codec_dev);
+	} else {
+		/*
+		 * Special case for Android tablets where the codec i2c_client
+		 * has been manually instantiated by x86_android_tablets.ko due
+		 * to a broken DSDT.
+		 */
+		codec_dev = bus_find_device_by_name(&i2c_bus_type, NULL,
+					BYT_RT5640_FALLBACK_CODEC_DEV_NAME);
+		if (!codec_dev)
+			return -EPROBE_DEFER;
+
+		if (!i2c_verify_client(codec_dev)) {
+			dev_err(dev, "Error '%s' is not an i2c_client\n",
+				BYT_RT5640_FALLBACK_CODEC_DEV_NAME);
+			put_device(codec_dev);
+		}
+
+		/* fixup codec name */
+		strscpy(byt_rt5640_codec_name, BYT_RT5640_FALLBACK_CODEC_DEV_NAME,
+			sizeof(byt_rt5640_codec_name));
+
+		/* bus_find_device() returns a reference no need to get() */
+		priv->codec_dev = codec_dev;
+	}
 
 	/*
 	 * swap SSP0 if bytcr is detected
-- 
2.43.0

[PATCH AUTOSEL 6.11 08/21] ASoC: Intel: bytcr_rt5640: Add DMI quirk for Vexia Edu Atla 10 tablet

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 0107f28f135231da22a9ad5756bb16bd5cada4d5 ]

The Vexia Edu Atla 10 tablet mostly uses the BYTCR tablet defaults,
but as happens on more models it is using IN1 instead of IN3 for
its internal mic and JD_SRC_JD2_IN4N instead of JD_SRC_JD1_IN4P
for jack-detection.

Add a DMI quirk for this to fix the internal-mic and jack-detection.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20241024211615.79518-2-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/intel/boards/bytcr_rt5640.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c
index ba4293ae7c24f..2e786836588fb 100644
--- a/sound/soc/intel/boards/bytcr_rt5640.c
+++ b/sound/soc/intel/boards/bytcr_rt5640.c
@@ -1132,6 +1132,21 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = {
 					BYT_RT5640_SSP0_AIF2 |
 					BYT_RT5640_MCLK_EN),
 	},
+	{	/* Vexia Edu Atla 10 tablet */
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+			DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
+			/* Above strings are too generic, also match on BIOS date */
+			DMI_MATCH(DMI_BIOS_DATE, "08/25/2014"),
+		},
+		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
+					BYT_RT5640_JD_SRC_JD2_IN4N |
+					BYT_RT5640_OVCD_TH_2000UA |
+					BYT_RT5640_OVCD_SF_0P75 |
+					BYT_RT5640_DIFF_MIC |
+					BYT_RT5640_SSP0_AIF2 |
+					BYT_RT5640_MCLK_EN),
+	},
 	{	/* Voyo Winpad A15 */
 		.matches = {
 			DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
-- 
2.43.0

[PATCH AUTOSEL 6.11 09/21] ASoC: Intel: sst: Support LPE0F28 ACPI HID

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 6668610b4d8ce9a3ee3ed61a9471f62fb5f05bf9 ]

Some old Bay Trail tablets which shipped with Android as factory OS
have the SST/LPE audio engine described by an ACPI device with a
HID (Hardware-ID) of LPE0F28 instead of 80860F28.

Add support for this. Note this uses a new sst_res_info for just
the LPE0F28 case because it has a different layout for the IO-mem ACPI
resources then the 80860F28.

An example of a tablet which needs this is the Vexia EDU ATLA 10 tablet,
which has been distributed to schools in the Spanish Andalucía region.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20241025090221.52198-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/hda/intel-dsp-config.c        |  4 ++
 sound/soc/intel/atom/sst/sst_acpi.c | 64 +++++++++++++++++++++++++----
 2 files changed, 59 insertions(+), 9 deletions(-)

diff --git a/sound/hda/intel-dsp-config.c b/sound/hda/intel-dsp-config.c
index 913880b090657..ee4157992f6bf 100644
--- a/sound/hda/intel-dsp-config.c
+++ b/sound/hda/intel-dsp-config.c
@@ -732,6 +732,10 @@ static const struct config_entry acpi_config_table[] = {
 #if IS_ENABLED(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI) || \
     IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
 /* BayTrail */
+	{
+		.flags = FLAG_SST_OR_SOF_BYT,
+		.acpi_hid = "LPE0F28",
+	},
 	{
 		.flags = FLAG_SST_OR_SOF_BYT,
 		.acpi_hid = "80860F28",
diff --git a/sound/soc/intel/atom/sst/sst_acpi.c b/sound/soc/intel/atom/sst/sst_acpi.c
index 29d44c989e5fc..1f9bb1b84949d 100644
--- a/sound/soc/intel/atom/sst/sst_acpi.c
+++ b/sound/soc/intel/atom/sst/sst_acpi.c
@@ -125,6 +125,28 @@ static const struct sst_res_info bytcr_res_info = {
 	.acpi_ipc_irq_index = 0
 };
 
+/* For "LPE0F28" ACPI device found on some Android factory OS models */
+static const struct sst_res_info lpe8086_res_info = {
+	.shim_offset = 0x140000,
+	.shim_size = 0x000100,
+	.shim_phy_addr = SST_BYT_SHIM_PHY_ADDR,
+	.ssp0_offset = 0xa0000,
+	.ssp0_size = 0x1000,
+	.dma0_offset = 0x98000,
+	.dma0_size = 0x4000,
+	.dma1_offset = 0x9c000,
+	.dma1_size = 0x4000,
+	.iram_offset = 0x0c0000,
+	.iram_size = 0x14000,
+	.dram_offset = 0x100000,
+	.dram_size = 0x28000,
+	.mbox_offset = 0x144000,
+	.mbox_size = 0x1000,
+	.acpi_lpe_res_index = 1,
+	.acpi_ddr_index = 0,
+	.acpi_ipc_irq_index = 0
+};
+
 static struct sst_platform_info byt_rvp_platform_data = {
 	.probe_data = &byt_fwparse_info,
 	.ipc_info = &byt_ipc_info,
@@ -268,10 +290,38 @@ static int sst_acpi_probe(struct platform_device *pdev)
 		mach->pdata = &chv_platform_data;
 	pdata = mach->pdata;
 
-	ret = kstrtouint(id->id, 16, &dev_id);
-	if (ret < 0) {
-		dev_err(dev, "Unique device id conversion error: %d\n", ret);
-		return ret;
+	if (!strcmp(id->id, "LPE0F28")) {
+		struct resource *rsrc;
+
+		/* Use regular BYT SST PCI VID:PID */
+		dev_id = 0x80860F28;
+		byt_rvp_platform_data.res_info = &lpe8086_res_info;
+
+		/*
+		 * The "LPE0F28" ACPI device has separate IO-mem resources for:
+		 * DDR, SHIM, MBOX, IRAM, DRAM, CFG
+		 * None of which covers the entire LPE base address range.
+		 * lpe8086_res_info.acpi_lpe_res_index points to the SHIM.
+		 * Patch this to cover the entire base address range as expected
+		 * by sst_platform_get_resources().
+		 */
+		rsrc = platform_get_resource(pdev, IORESOURCE_MEM,
+					     pdata->res_info->acpi_lpe_res_index);
+		if (!rsrc) {
+			dev_err(ctx->dev, "Invalid SHIM base\n");
+			return -EIO;
+		}
+		rsrc->start -= pdata->res_info->shim_offset;
+		rsrc->end = rsrc->start + 0x200000 - 1;
+	} else {
+		ret = kstrtouint(id->id, 16, &dev_id);
+		if (ret < 0) {
+			dev_err(dev, "Unique device id conversion error: %d\n", ret);
+			return ret;
+		}
+
+		if (soc_intel_is_byt_cr(pdev))
+			byt_rvp_platform_data.res_info = &bytcr_res_info;
 	}
 
 	dev_dbg(dev, "ACPI device id: %x\n", dev_id);
@@ -280,11 +330,6 @@ static int sst_acpi_probe(struct platform_device *pdev)
 	if (ret < 0)
 		return ret;
 
-	if (soc_intel_is_byt_cr(pdev)) {
-		/* override resource info */
-		byt_rvp_platform_data.res_info = &bytcr_res_info;
-	}
-
 	/* update machine parameters */
 	mach->mach_params.acpi_ipc_irq_index =
 		pdata->res_info->acpi_ipc_irq_index;
@@ -344,6 +389,7 @@ static void sst_acpi_remove(struct platform_device *pdev)
 }
 
 static const struct acpi_device_id sst_acpi_ids[] = {
+	{ "LPE0F28", (unsigned long)&snd_soc_acpi_intel_baytrail_machines},
 	{ "80860F28", (unsigned long)&snd_soc_acpi_intel_baytrail_machines},
 	{ "808622A8", (unsigned long)&snd_soc_acpi_intel_cherrytrail_machines},
 	{ },
-- 
2.43.0

[PATCH AUTOSEL 6.11 16/21] ALSA: hda/realtek: Add subwoofer quirk for Infinix ZERO BOOK 13

[Sasha Levin]

From: Piyush Raj Chouhan <piyushchouhan1598@gmail.com>

[ Upstream commit ef5fbdf732a158ec27eeba69d8be851351f29f73 ]

Infinix ZERO BOOK 13 has a 2+2 speaker system which isn't probed correctly.
This patch adds a quirk with the proper pin connections.
Also The mic in this laptop suffers too high gain resulting in mostly
fan noise being recorded,
This patch Also limit mic boost.

HW Probe for device; https://linux-hardware.org/?probe=a2e892c47b

Test: All 4 speaker works, Mic has low noise.

Signed-off-by: Piyush Raj Chouhan <piyushchouhan1598@gmail.com>
Link: https://patch.msgid.link/20241028155516.15552-1-piyuschouhan1598@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/patch_realtek.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 2583081c0a3a5..1fed705d8815e 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -7537,6 +7537,7 @@ enum {
 	ALC290_FIXUP_SUBWOOFER_HSJACK,
 	ALC269_FIXUP_THINKPAD_ACPI,
 	ALC269_FIXUP_DMIC_THINKPAD_ACPI,
+	ALC269VB_FIXUP_INFINIX_ZERO_BOOK_13,
 	ALC269VB_FIXUP_CHUWI_COREBOOK_XPRO,
 	ALC255_FIXUP_ACER_MIC_NO_PRESENCE,
 	ALC255_FIXUP_ASUS_MIC_NO_PRESENCE,
@@ -7984,6 +7985,16 @@ static const struct hda_fixup alc269_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc269_fixup_pincfg_U7x7_headset_mic,
 	},
+	[ALC269VB_FIXUP_INFINIX_ZERO_BOOK_13] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x14, 0x90170151 }, /* use as internal speaker (LFE) */
+			{ 0x1b, 0x90170152 }, /* use as internal speaker (back) */
+			{ }
+		},
+		.chained = true,
+		.chain_id = ALC269_FIXUP_LIMIT_INT_MIC_BOOST
+	},
 	[ALC269VB_FIXUP_CHUWI_COREBOOK_XPRO] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = (const struct hda_pintbl[]) {
@@ -10963,6 +10974,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1d72, 0x1945, "Redmi G", ALC256_FIXUP_ASUS_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1d72, 0x1947, "RedmiBook Air", ALC255_FIXUP_XIAOMI_HEADSET_MIC),
 	SND_PCI_QUIRK(0x2782, 0x0214, "VAIO VJFE-CL", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
+	SND_PCI_QUIRK(0x2782, 0x0228, "Infinix ZERO BOOK 13", ALC269VB_FIXUP_INFINIX_ZERO_BOOK_13),
 	SND_PCI_QUIRK(0x2782, 0x0232, "CHUWI CoreBook XPro", ALC269VB_FIXUP_CHUWI_COREBOOK_XPRO),
 	SND_PCI_QUIRK(0x2782, 0x1707, "Vaio VJFE-ADL", ALC298_FIXUP_SPK_VOLUME),
 	SND_PCI_QUIRK(0x8086, 0x2074, "Intel NUC 8", ALC233_FIXUP_INTEL_NUC8_DMIC),
-- 
2.43.0

[PATCH AUTOSEL 6.11 17/21] ASoC: codecs: wcd937x: add missing LO Switch control

[Sasha Levin]

From: Alexey Klimov <alexey.klimov@linaro.org>

[ Upstream commit 041db4bbe04e8e0b48350b3bbbd9a799794d5c1e ]

The wcd937x supports also AUX input but the control that sets correct
soundwire port for this is missing. This control is required for audio
playback, for instance, on qrb4210 RB2 board as well as on other
SoCs.

Reported-by: Adam Skladowski <a39.skl@gmail.com>
Reported-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Suggested-by: Adam Skladowski <a39.skl@gmail.com>
Suggested-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
Link: https://patch.msgid.link/20241022033132.787416-2-alexey.klimov@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/wcd937x.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/wcd937x.c b/sound/soc/codecs/wcd937x.c
index af296b77a723a..63b25c321a03d 100644
--- a/sound/soc/codecs/wcd937x.c
+++ b/sound/soc/codecs/wcd937x.c
@@ -2049,6 +2049,8 @@ static const struct snd_kcontrol_new wcd937x_snd_controls[] = {
 		       wcd937x_get_swr_port, wcd937x_set_swr_port),
 	SOC_SINGLE_EXT("HPHR Switch", WCD937X_HPH_R, 0, 1, 0,
 		       wcd937x_get_swr_port, wcd937x_set_swr_port),
+	SOC_SINGLE_EXT("LO Switch", WCD937X_LO, 0, 1, 0,
+		       wcd937x_get_swr_port, wcd937x_set_swr_port),
 
 	SOC_SINGLE_EXT("ADC1 Switch", WCD937X_ADC1, 1, 1, 0,
 		       wcd937x_get_swr_port, wcd937x_set_swr_port),
-- 
2.43.0

[PATCH AUTOSEL 6.11 18/21] ASoC: codecs: wcd937x: relax the AUX PDM watchdog

[Sasha Levin]

From: Alexey Klimov <alexey.klimov@linaro.org>

[ Upstream commit 107a5c853eef5336a9846e7dd2f9184b6e3c07c7 ]

On a system with wcd937x, rxmacro and Qualcomm audio DSP, which is pretty
common set of devices on Qualcomm platforms, and due to the order of how
DAPM widgets are powered on (they are sorted), there is a small time window
when wcd937x chip is online and expects the flow of incoming data but
rxmacro is not yet online. When wcd937x is programmed to receive data
via AUX port then its AUX PDM watchdog is enabled in
wcd937x_codec_enable_aux_pa(). If due to some reasons the rxmacro and
soundwire machinery are delayed to start streaming data, then there is
a chance for this AUX PDM watchdog to reset the wcd937x codec. Such event
is not logged as a message and only wcd937x IRQ counter is increased
however there could be a lot of other reasons for that IRQ.
There is a similar opportunity for such delay during DAPM widgets power
down sequence.

If wcd937x codec reset happens on the start of the playback, then there
will be no sound and if such reset happens at the end of a playback then
it may generate additional clicks and pops noises.

On qrb4210 RB2 board without any debugging bits the wcd937x resets are
sometimes observed at the end of a playback though not always.
With some debugging messages or with some tracing enabled the AUX PDM
watchdog resets the wcd937x codec at the start of a playback and there
is no sound output at all.

In this patch:
 - TIMEOUT_SEL bit in PDM_WD_CTL2 register is set to increase the watchdog
reset delay to 100ms which eliminates the AUX PDM watchdog IRQs on
qrb4210 RB2 board completely and decreases the number of unwanted clicks
noises;

 - HOLD_OFF bit postpones triggering such watchdog IRQ till wcd937x codec
reset which usually happens at the end of a playback. This allows to
actually output some sound in case of debugging.

Cc: Adam Skladowski <a39.skl@gmail.com>
Cc: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Cc: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
Link: https://patch.msgid.link/20241022033132.787416-3-alexey.klimov@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/wcd937x.c | 10 ++++++++--
 sound/soc/codecs/wcd937x.h |  4 ++++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/wcd937x.c b/sound/soc/codecs/wcd937x.c
index 63b25c321a03d..3c1224d8f2dff 100644
--- a/sound/soc/codecs/wcd937x.c
+++ b/sound/soc/codecs/wcd937x.c
@@ -715,12 +715,17 @@ static int wcd937x_codec_enable_aux_pa(struct snd_soc_dapm_widget *w,
 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 	struct wcd937x_priv *wcd937x = snd_soc_component_get_drvdata(component);
 	int hph_mode = wcd937x->hph_mode;
+	u8 val;
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
+		val = WCD937X_DIGITAL_PDM_WD_CTL2_EN |
+		      WCD937X_DIGITAL_PDM_WD_CTL2_TIMEOUT_SEL |
+		      WCD937X_DIGITAL_PDM_WD_CTL2_HOLD_OFF;
 		snd_soc_component_update_bits(component,
 					      WCD937X_DIGITAL_PDM_WD_CTL2,
-					      BIT(0), BIT(0));
+					      WCD937X_DIGITAL_PDM_WD_CTL2_MASK,
+					      val);
 		break;
 	case SND_SOC_DAPM_POST_PMU:
 		usleep_range(1000, 1010);
@@ -741,7 +746,8 @@ static int wcd937x_codec_enable_aux_pa(struct snd_soc_dapm_widget *w,
 					hph_mode);
 		snd_soc_component_update_bits(component,
 					      WCD937X_DIGITAL_PDM_WD_CTL2,
-					      BIT(0), 0x00);
+					      WCD937X_DIGITAL_PDM_WD_CTL2_MASK,
+					      0x00);
 		break;
 	}
 
diff --git a/sound/soc/codecs/wcd937x.h b/sound/soc/codecs/wcd937x.h
index 37bff16e88ddd..a2bd47a93e507 100644
--- a/sound/soc/codecs/wcd937x.h
+++ b/sound/soc/codecs/wcd937x.h
@@ -391,6 +391,10 @@
 #define WCD937X_DIGITAL_PDM_WD_CTL0		0x3465
 #define WCD937X_DIGITAL_PDM_WD_CTL1		0x3466
 #define WCD937X_DIGITAL_PDM_WD_CTL2		0x3467
+#define WCD937X_DIGITAL_PDM_WD_CTL2_HOLD_OFF	BIT(2)
+#define WCD937X_DIGITAL_PDM_WD_CTL2_TIMEOUT_SEL	BIT(1)
+#define WCD937X_DIGITAL_PDM_WD_CTL2_EN		BIT(0)
+#define WCD937X_DIGITAL_PDM_WD_CTL2_MASK	GENMASK(2, 0)
 #define WCD937X_DIGITAL_INTR_MODE		0x346A
 #define WCD937X_DIGITAL_INTR_MASK_0		0x346B
 #define WCD937X_DIGITAL_INTR_MASK_1		0x346C
-- 
2.43.0