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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: "Pierre-Louis Bossart" <pierre-louis.bossart@linux.intel.com>,
	"Mauro Carvalho Chehab" <mchehab@kernel.org>,
	"Bard Liao" <yung-chuan.liao@linux.intel.com>,
	"Péter Ujfalusi" <peter.ujfalusi@linux.intel.com>,
	"Takashi Iwai" <tiwai@suse.de>, "Sasha Levin" <sashal@kernel.org>,
	perex@perex.cz, tiwai@suse.com, broonie@kernel.org,
	amadeuszx.slawinski@linux.intel.com, markhas@chromium.org,
	bradynorander@gmail.com, linux-sound@vger.kernel.org
Subject: [PATCH AUTOSEL 6.8 33/52] ALSA: hda: intel-dsp-config: harden I2C/I2S codec detection
Date: Tue,  7 May 2024 19:06:59 -0400	[thread overview]
Message-ID: <20240507230800.392128-33-sashal@kernel.org> (raw)
In-Reply-To: <20240507230800.392128-1-sashal@kernel.org>

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

[ Upstream commit 79ac4c1443eaec0d09355307043a9149287f23c1 ]

The SOF driver is selected whenever specific I2C/I2S HIDs are reported
as 'present' in the ACPI DSDT. In some cases, an HID is reported but
the hardware does not actually rely on I2C/I2S.  This false positive
leads to an invalid selection of the SOF driver and as a result an
invalid topology is loaded.

This patch hardens the detection with a check that the NHLT table is
consistent with the report of an I2S-based codec in DSDT. This table
should expose at least one SSP endpoint configured for an I2S-codec
connection.

Tested on Huawei Matebook D14 (NBLB-WAX9N) using an HDaudio codec with
an invalid ES8336 ACPI HID reported:

[    7.858249] snd_hda_intel 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040380
[    7.858312] snd_hda_intel 0000:00:1f.3: snd_intel_dsp_find_config: no valid SSP found for HID ESSX8336, skipped

Reported-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Tested-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Closes: https://github.com/thesofproject/linux/issues/4934
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Message-ID: <20240426152818.38443-1-pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/hda/intel-dsp-config.c | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/sound/hda/intel-dsp-config.c b/sound/hda/intel-dsp-config.c
index 6a384b922e4fa..d1f6cdcf1866e 100644
--- a/sound/hda/intel-dsp-config.c
+++ b/sound/hda/intel-dsp-config.c
@@ -557,9 +557,32 @@ static const struct config_entry *snd_intel_dsp_find_config
 		if (table->codec_hid) {
 			int i;
 
-			for (i = 0; i < table->codec_hid->num_codecs; i++)
-				if (acpi_dev_present(table->codec_hid->codecs[i], NULL, -1))
+			for (i = 0; i < table->codec_hid->num_codecs; i++) {
+				struct nhlt_acpi_table *nhlt;
+				bool ssp_found = false;
+
+				if (!acpi_dev_present(table->codec_hid->codecs[i], NULL, -1))
+					continue;
+
+				nhlt = intel_nhlt_init(&pci->dev);
+				if (!nhlt) {
+					dev_warn(&pci->dev, "%s: NHLT table not found, skipped HID %s\n",
+						 __func__, table->codec_hid->codecs[i]);
+					continue;
+				}
+
+				if (intel_nhlt_has_endpoint_type(nhlt, NHLT_LINK_SSP) &&
+				    intel_nhlt_ssp_endpoint_mask(nhlt, NHLT_DEVICE_I2S))
+					ssp_found = true;
+
+				intel_nhlt_free(nhlt);
+
+				if (ssp_found)
 					break;
+
+				dev_warn(&pci->dev, "%s: no valid SSP found for HID %s, skipped\n",
+					 __func__, table->codec_hid->codecs[i]);
+			}
 			if (i == table->codec_hid->num_codecs)
 				continue;
 		}
-- 
2.43.0


      parent reply	other threads:[~2024-05-07 23:09 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-07 23:06 [PATCH AUTOSEL 6.8 01/52] ASoC: Intel: bytcr_rt5640: Apply Asus T100TA quirk to Asus T100TAM too Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 03/52] ALSA: hda: cs35l56: Exit cache-only after cs35l56_wait_for_firmware_boot() Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 04/52] ASoC: SOF: ipc4-pcm: Use consistent name for snd_sof_pcm_stream pointer Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 05/52] ASoC: SOF: ipc4-pcm: Use consistent name for sof_ipc4_timestamp_info pointer Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 06/52] ASoC: SOF: ipc4-pcm: Introduce generic sof_ipc4_pcm_stream_priv Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 07/52] ASoC: SOF: pcm: Restrict DSP D0i3 during S0ix to IPC3 Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 08/52] ASoC: acp: Support microphone from device Acer 315-24p Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 09/52] ASoC: rt5645: Fix the electric noise due to the CBJ contacts floating Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 10/52] ASoC: dt-bindings: rt5645: add cbj sleeve gpio property Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 11/52] ASoC: rt722-sdca: modify channel number to support 4 channels Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 12/52] ASoC: rt722-sdca: add headset microphone vrefo setting Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 15/52] ASoC: cs35l41: Update DSP1RX5/6 Sources for DSP config Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 16/52] ASoC: rt715: add vendor clear control register Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 17/52] ASoC: rt715-sdca: volume step modification Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 24/52] ALSA: emu10k1: factor out snd_emu1010_load_dock_firmware() Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 25/52] ALSA: emu10k1: make E-MU FPGA writes potentially more reliable Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 31/52] ASoC: da7219-aad: fix usage of device_get_named_child_node() Sasha Levin
2024-05-07 23:06 ` [PATCH AUTOSEL 6.8 32/52] ASoC: cs35l56: fix usages " Sasha Levin
2024-05-07 23:06 ` Sasha Levin [this message]

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