Re: [alsa-devel] [PATCH] ASoC: Intel: sof_rt5682: Ignore the speaker amp when there isn't one.

From: Pierre-Louis Bossart
Date: Thu Jan 02 2020 - 16:18:36 EST

On 1/1/20 6:28 PM, Sam McNally wrote:
Some members of the Google_Hatch family include a rt5682, but not a
speaker amp. When a speaker amp is also present, it matches MX98357A
as well, resulting in the quirk_data field in the snd_soc_acpi_mach
being non-null. When only the rt5682 is present, quirk_data is left

Sorry, I don't get this last sentence.

There is a single entry for 10EC5682 in sound-acpi-intel-glk-match.c and quirk_data is assigned - thus can never be NULL.

I wonder if your Chrome kernel has an extra entry in snd_soc_acpi_intel_glk_machines[] ? What I am missing?

The sof_rt5682 driver's DMI data matching identifies that a speaker amp
is present for all Google_Hatch family devices. Detect cases where there
is no speaker amp by checking for a null quirk_data in the
snd_soc_acpi_mach and remove the speaker amp bit in that case.

Signed-off-by: Sam McNally <sammc@xxxxxxxxxxxx>

sound/soc/intel/boards/sof_rt5682.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/boards/sof_rt5682.c b/sound/soc/intel/boards/sof_rt5682.c
index ad8a2b4bc709..8a13231dee15 100644
--- a/sound/soc/intel/boards/sof_rt5682.c
+++ b/sound/soc/intel/boards/sof_rt5682.c
@@ -603,6 +603,14 @@ static int sof_audio_probe(struct platform_device *pdev)
+ mach = (&pdev->dev)->platform_data;
+ /* A speaker amp might not be present when the quirk claims one is.
+ * Detect this via whether the machine driver match includes quirk_data.
+ */
+ if ((sof_rt5682_quirk & SOF_SPEAKER_AMP_PRESENT) && !mach->quirk_data)
+ sof_rt5682_quirk &= ~SOF_SPEAKER_AMP_PRESENT;
if (soc_intel_is_byt() || soc_intel_is_cht()) {
is_legacy_cpu = 1;
dmic_be_num = 0;
@@ -663,7 +671,6 @@ static int sof_audio_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&ctx->hdmi_pcm_list); = &pdev->dev;
- mach = (&pdev->dev)->platform_data;
/* set platform name for each dailink */
ret = snd_soc_fixup_dai_links_platform_name(&sof_audio_card_rt5682,