From patchwork Thu Nov 11 03:19:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Hui Wang X-Patchwork-Id: 1553730 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=canonical.com header.i=@canonical.com header.a=rsa-sha256 header.s=20210705 header.b=AvGfmYkg; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; helo=huckleberry.canonical.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=) Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HqRmh1v39z9sXM for ; Thu, 11 Nov 2021 14:20:20 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1ml0dG-0007MM-G8; Thu, 11 Nov 2021 03:20:10 +0000 Received: from smtp-relay-canonical-0.internal ([10.131.114.83] helo=smtp-relay-canonical-0.canonical.com) by huckleberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1ml0dE-0007LU-R3 for kernel-team@lists.ubuntu.com; Thu, 11 Nov 2021 03:20:08 +0000 Received: from localhost.localdomain (unknown [123.112.64.86]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-canonical-0.canonical.com (Postfix) with ESMTPSA id 6BA7A3F212 for ; Thu, 11 Nov 2021 03:20:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1636600808; bh=Mu7z+EiUNLgne7zqhc9wH2jpSIXiER3sKk/+GAD/5UU=; h=From:To:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=AvGfmYkgaB+5zsZ5T5pMuhG9qe4j5C2trctERD8WZyLJvM34YVbYsjXSfZXnrD39g ZD/hysDSTe1WZcfIm/+/D19D+TJlujFwEMt5KpA8fjnzu420LFmaUg0MBfXrSlx7jR QpGrp3J7eZxfpkdT+z/mZH/8wJqc4BChBipFazTs9ELLRm0mccqH/oUJpyNiMeyn5E ELIFRK108Gvy/1L3X08s0BRjMzIdnanVTCQ0lAc8PRnGc7JAQ6J5FuL2RgJUOfmg/Q 6V1cl2/gyeUarAeFsW3mqo5Sjj2nXtq/QdoeCUDxdHfwlqNiUHutzz66Z+7dMMrDbr SyZH9ANK1d4iQ== From: Hui Wang To: kernel-team@lists.ubuntu.com Subject: [SRU][J][PATCH 1/1] ASoC: SOF: Intel: hda: fix hotplug when only codec is suspended Date: Thu, 11 Nov 2021 11:19:55 +0800 Message-Id: <20211111031955.11426-3-hui.wang@canonical.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211111031955.11426-1-hui.wang@canonical.com> References: <20211111031955.11426-1-hui.wang@canonical.com> MIME-Version: 1.0 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" From: Kai Vehmanen BugLink: https://bugs.launchpad.net/bugs/1950540 If codec is in runtime suspend, but controller is not, hotplug events are missed as the codec has no way to alert the controller. Problem does not occur if both controller and codec are active, or when both are suspended. An easy way to reproduce is to play an audio stream on one codec (e.g. to HDMI/DP display codec), wait for other HDA codec to go to runtime suspend, and then plug in a headset to the suspended codec. The jack event is not reported correctly in this case. Another way to reproduce is to force controller to stay active with "snd_sof_pci.sof_pci_debug=0x1" Fix the issue by reconfiguring the WAKEEN register when powering up/down individual links, and handling control events in the interrupt handler. Fixes: 87fc20e4a0cb ("ASoC: SOF: Intel: hda: use hdac_ext fine-grained link management") Reported-by: Hui Wang Signed-off-by: Kai Vehmanen Reviewed-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Reviewed-by: Péter Ujfalusi Link: https://lore.kernel.org/r/20211105111655.668777-1-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown (cherry picked from commit fd572393baf0350835e8d822db588f679dc7bcb8 linux-next) Signed-off-by: Hui Wang --- sound/soc/sof/intel/hda-bus.c | 17 +++++++++++++++++ sound/soc/sof/intel/hda-dsp.c | 3 +-- sound/soc/sof/intel/hda.c | 16 ++++++++++++++++ 3 files changed, 34 insertions(+), 2 deletions(-) diff --git a/sound/soc/sof/intel/hda-bus.c b/sound/soc/sof/intel/hda-bus.c index 30025d3c16b6..0862ff8b6627 100644 --- a/sound/soc/sof/intel/hda-bus.c +++ b/sound/soc/sof/intel/hda-bus.c @@ -10,6 +10,8 @@ #include #include #include +#include +#include #include "../sof-priv.h" #include "hda.h" @@ -21,6 +23,18 @@ #endif #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) +static void update_codec_wake_enable(struct hdac_bus *bus, unsigned int addr, bool link_power) +{ + unsigned int mask = snd_hdac_chip_readw(bus, WAKEEN); + + if (link_power) + mask &= ~BIT(addr); + else + mask |= BIT(addr); + + snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, mask); +} + static void sof_hda_bus_link_power(struct hdac_device *codec, bool enable) { struct hdac_bus *bus = codec->bus; @@ -41,6 +55,9 @@ static void sof_hda_bus_link_power(struct hdac_device *codec, bool enable) */ if (codec->addr == HDA_IDISP_ADDR && !enable) snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false); + + /* WAKEEN needs to be set for disabled links */ + update_codec_wake_enable(bus, codec->addr, enable); } static const struct hdac_bus_ops bus_core_ops = { diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c index 623cf291e207..262a70791a8f 100644 --- a/sound/soc/sof/intel/hda-dsp.c +++ b/sound/soc/sof/intel/hda-dsp.c @@ -623,8 +623,7 @@ static int hda_suspend(struct snd_sof_dev *sdev, bool runtime_suspend) hda_dsp_ipc_int_disable(sdev); #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) - if (runtime_suspend) - hda_codec_jack_wake_enable(sdev, true); + hda_codec_jack_wake_enable(sdev, runtime_suspend); /* power down all hda link */ snd_hdac_ext_bus_link_power_down_all(bus); diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c index f60e2c57d3d0..ef92cca7ae01 100644 --- a/sound/soc/sof/intel/hda.c +++ b/sound/soc/sof/intel/hda.c @@ -696,6 +696,20 @@ static int hda_init_caps(struct snd_sof_dev *sdev) return 0; } +static void hda_check_for_state_change(struct snd_sof_dev *sdev) +{ +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) + struct hdac_bus *bus = sof_to_bus(sdev); + unsigned int codec_mask; + + codec_mask = snd_hdac_chip_readw(bus, STATESTS); + if (codec_mask) { + hda_codec_jack_check(sdev); + snd_hdac_chip_writew(bus, STATESTS, codec_mask); + } +#endif +} + static irqreturn_t hda_dsp_interrupt_handler(int irq, void *context) { struct snd_sof_dev *sdev = context; @@ -737,6 +751,8 @@ static irqreturn_t hda_dsp_interrupt_thread(int irq, void *context) if (hda_sdw_check_wakeen_irq(sdev)) hda_sdw_process_wakeen(sdev); + hda_check_for_state_change(sdev); + /* enable GIE interrupt */ snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL,