{"id":2225758,"url":"http://patchwork.ozlabs.org/api/patches/2225758/?format=json","web_url":"http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/20260421144053.131431-3-tobias.heider@canonical.com/","project":{"id":15,"url":"http://patchwork.ozlabs.org/api/projects/15/?format=json","name":"Ubuntu Kernel","link_name":"ubuntu-kernel","list_id":"kernel-team.lists.ubuntu.com","list_email":"kernel-team@lists.ubuntu.com","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260421144053.131431-3-tobias.heider@canonical.com>","list_archive_url":null,"date":"2026-04-21T14:40:55","name":"[SRU,R] UBUNTU: SAUCE: ASoC: qcom: x1e80100: limit speaker volumes","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"30d372a884c7956bec7c161583c703fda7dfe3c3","submitter":{"id":90158,"url":"http://patchwork.ozlabs.org/api/people/90158/?format=json","name":"Tobias Heider","email":"tobias.heider@canonical.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/20260421144053.131431-3-tobias.heider@canonical.com/mbox/","series":[{"id":500825,"url":"http://patchwork.ozlabs.org/api/series/500825/?format=json","web_url":"http://patchwork.ozlabs.org/project/ubuntu-kernel/list/?series=500825","date":"2026-04-21T14:40:55","name":"[SRU,R] UBUNTU: SAUCE: ASoC: qcom: x1e80100: limit speaker volumes","version":1,"mbox":"http://patchwork.ozlabs.org/series/500825/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2225758/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2225758/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (4096-bit key;\n unprotected) header.d=canonical.com header.i=@canonical.com\n header.a=rsa-sha256 header.s=20251003 header.b=BhzHXxpP;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com\n (client-ip=185.125.189.65; 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charset=\"utf-8\"","Content-Transfer-Encoding":"base64","Errors-To":"kernel-team-bounces@lists.ubuntu.com","Sender":"\"kernel-team\" "},"content":"BugLink: https://bugs.launchpad.net/bugs/2149808\n\nLimit the digital gain and PA volumes to a combined -3 dB in the machine\ndriver to reduce the risk of speaker damage until we have active speaker\nprotection in place (or higher safe levels have been established).\n\nBased on commit c481016bb4f8 (\"ASoC: qcom: sc8280xp: limit speaker\nvolumes\") which addressed the same issue on the sc8280x SoC with some\nminor changes as explained below.\n\nThe Digital Volume behaves identical to sc8280x, both use the same\nlpass-wsa-macro.\nFor PA x1e80100 machines use wsa884x amplifiers which expose a linear\nscale from -9 dB to 9 dB with a 1.5 dB step size giving us\n0 dB = -9 dB + 6 * 1.5 dB.\n\nOn x1e80100 there are two different speaker topologies we need to handle:\n 2-Speakers: SpkrLeft, Spkr Right\n 4-Speakers: WooferLeft, WooferRight, TweeterLeft, TweeterRight\n\nSigned-off-by: Tobias Heider \n---\n sound/soc/qcom/x1e80100.c | 17 +++++++++++++++++\n 1 file changed, 17 insertions(+)","diff":"diff --git a/sound/soc/qcom/x1e80100.c b/sound/soc/qcom/x1e80100.c\nindex a3f4785c4bbe..94ed3ade0daf 100644\n--- a/sound/soc/qcom/x1e80100.c\n+++ b/sound/soc/qcom/x1e80100.c\n@@ -27,10 +27,27 @@ static int x1e80100_snd_init(struct snd_soc_pcm_runtime *rtd)\n {\n \tstruct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card);\n \tstruct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);\n+\tstruct snd_soc_card *card = rtd->card;\n \tstruct snd_soc_jack *dp_jack = NULL;\n \tint dp_pcm_id = 0;\n \n \tswitch (cpu_dai->id) {\n+\tcase WSA_CODEC_DMA_RX_0:\n+\tcase WSA_CODEC_DMA_RX_1:\n+\t\t/*\n+\t\t * Set limit of -3 dB on Digital Volume and 0 dB on PA Volume\n+\t\t * to reduce the risk of speaker damage until we have active\n+\t\t * speaker protection in place.\n+\t\t */\n+\t\tsnd_soc_limit_volume(card, \"WSA_RX0 Digital Volume\", 81);\n+\t\tsnd_soc_limit_volume(card, \"WSA_RX1 Digital Volume\", 81);\n+\t\tsnd_soc_limit_volume(card, \"SpkrLeft PA Volume\", 6);\n+\t\tsnd_soc_limit_volume(card, \"SpkrRight PA Volume\", 6);\n+\t\tsnd_soc_limit_volume(card, \"WooferLeft PA Volume\", 6);\n+\t\tsnd_soc_limit_volume(card, \"TweeterLeft PA Volume\", 6);\n+\t\tsnd_soc_limit_volume(card, \"WooferRight PA Volume\", 6);\n+\t\tsnd_soc_limit_volume(card, \"TweeterRight PA Volume\", 6);\n+\t\tbreak;\n \tcase DISPLAY_PORT_RX_0:\n \t\tdp_pcm_id = 0;\n \t\tdp_jack = &data->dp_jack[dp_pcm_id];\n","prefixes":["SRU","R"]}