From patchwork Fri Dec 9 10:18:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kai Vehmanen X-Patchwork-Id: 13069459 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2C2B6C04FDE for ; Fri, 9 Dec 2022 10:19:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 68C9C10E51B; Fri, 9 Dec 2022 10:19:01 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id A503D10E519 for ; Fri, 9 Dec 2022 10:18:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1670581133; x=1702117133; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ZCXgyDaHVQAe/Fu//g372KfhGJpE9bthk3Co6jIyNT4=; b=bLBJA1v5v714Tt3uHBh2FNBI7uKuzre77FoEJYqKvpSM6oungNU9EYX9 sCMdYw9qwFjv9WFipmXw9hD4JnG6wE3SgWoVdm1YwMRy8PhEfGkLxUlBk KV80/wcRnacK6AxtxOmPaUi4VvIWH7hGZBMJLTkesHWDXclrIpL1bxvu6 MWCg5OeyQibZ5ujt/nisK3EM0/v6OfY7RvBT4tcal6TWVW+88IFhUvAX/ tWfMhf+TM0ZJogA5b2UjpGDiOY8J8fa8TRKxJHFinJLhqmn7tGu46exl8 ZUBvMwhyDpMqCU7nvDXgb/9FIDagHOBS9FcAJcMx13QMBvqNe8/REb7IQ g==; X-IronPort-AV: E=McAfee;i="6500,9779,10555"; a="316135216" X-IronPort-AV: E=Sophos;i="5.96,230,1665471600"; d="scan'208";a="316135216" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Dec 2022 02:18:53 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10555"; a="649510777" X-IronPort-AV: E=Sophos;i="5.96,230,1665471600"; d="scan'208";a="649510777" Received: from eliteleevi.tm.intel.com ([10.237.54.20]) by fmsmga007.fm.intel.com with ESMTP; 09 Dec 2022 02:18:51 -0800 From: Kai Vehmanen To: alsa-devel@alsa-project.org, tiwai@suse.de Date: Fri, 9 Dec 2022 12:18:22 +0200 Message-Id: <20221209101822.3893675-4-kai.vehmanen@linux.intel.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221209101822.3893675-1-kai.vehmanen@linux.intel.com> References: <20221209101822.3893675-1-kai.vehmanen@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 3/3] ALSA: hda/hdmi: fix stream-id config keep-alive for rt suspend X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx@lists.freedesktop.org, Pierre-Louis Bossart , Rodrigo Vivi Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" When the new style KAE keep-alive implementation is used on compatible Intel hardware, the clocks are maintained when codec is in D3. The generic code in hda_cleanup_all_streams() can however interfere with generation of audio samples in this mode, by setting the stream and channel ids to zero. To get full benefit of the keepalive, set the new no_stream_clean_at_suspend quirk bit on affected Intel hardware. When this bit is set, stream cleanup is skipped in hda_call_codec_suspend(). Special handling is needed for the case when system goes to suspend. The stream id programming can be lost in this case. This will also cause codec->cvt_setups to be out of sync. Handle this by implementing custom suspend/resume handlers. If keep-alive is active for any converter, set the quirk flags no_stream_clean_at_suspend and forced_resume. Upon resume, keepalive programming is restored if needed. Fixes: 15175a4f2bbb ("ALSA: hda/hdmi: add keep-alive support for ADL-P and DG2") Signed-off-by: Kai Vehmanen Reviewed-by: Pierre-Louis Bossart --- include/sound/hda_codec.h | 1 + sound/pci/hda/hda_codec.c | 3 +- sound/pci/hda/patch_hdmi.c | 90 +++++++++++++++++++++++++++++++++++++- 3 files changed, 92 insertions(+), 2 deletions(-) diff --git a/include/sound/hda_codec.h b/include/sound/hda_codec.h index 25ec8c181688..eba23daf2c29 100644 --- a/include/sound/hda_codec.h +++ b/include/sound/hda_codec.h @@ -258,6 +258,7 @@ struct hda_codec { unsigned int link_down_at_suspend:1; /* link down at runtime suspend */ unsigned int relaxed_resume:1; /* don't resume forcibly for jack */ unsigned int forced_resume:1; /* forced resume for jack */ + unsigned int no_stream_clean_at_suspend:1; /* do not clean streams at suspend */ #ifdef CONFIG_PM unsigned long power_on_acct; diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index b4d1e658c556..edd653ece70d 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -2886,7 +2886,8 @@ static unsigned int hda_call_codec_suspend(struct hda_codec *codec) snd_hdac_enter_pm(&codec->core); if (codec->patch_ops.suspend) codec->patch_ops.suspend(codec); - hda_cleanup_all_streams(codec); + if (!codec->no_stream_clean_at_suspend) + hda_cleanup_all_streams(codec); state = hda_set_power_state(codec, AC_PWRST_D3); update_power_acct(codec, true); snd_hdac_leave_pm(&codec->core); diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index f8e6ff7f8820..8015e4471267 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -2926,6 +2926,88 @@ static void i915_pin_cvt_fixup(struct hda_codec *codec, } } +#ifdef CONFIG_PM +static int i915_adlp_hdmi_suspend(struct hda_codec *codec) +{ + struct hdmi_spec *spec = codec->spec; + bool silent_streams = false; + int pin_idx, res; + + res = generic_hdmi_suspend(codec); + + for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) { + struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx); + + if (per_pin->silent_stream) { + silent_streams = true; + break; + } + } + + if (silent_streams && spec->silent_stream_type == SILENT_STREAM_KAE) { + /* + * stream-id should remain programmed when codec goes + * to runtime suspend + */ + codec->no_stream_clean_at_suspend = 1; + + /* + * the system might go to S3, in which case keep-alive + * must be reprogrammed upon resume + */ + codec->forced_resume = 1; + + codec_dbg(codec, "HDMI: KAE active at suspend\n"); + } else { + codec->no_stream_clean_at_suspend = 0; + codec->forced_resume = 0; + } + + return res; +} + +static int i915_adlp_hdmi_resume(struct hda_codec *codec) +{ + struct hdmi_spec *spec = codec->spec; + int pin_idx, res; + + res = generic_hdmi_resume(codec); + + /* KAE not programmed at suspend, nothing to do here */ + if (!codec->no_stream_clean_at_suspend) + return res; + + for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) { + struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx); + + /* + * If system was in suspend with monitor connected, + * the codec setting may have been lost. Re-enable + * keep-alive. + */ + if (per_pin->silent_stream) { + unsigned int param; + + param = snd_hda_codec_read(codec, per_pin->cvt_nid, 0, + AC_VERB_GET_CONV, 0); + if (!param) { + codec_dbg(codec, "HDMI: KAE: restore stream id\n"); + silent_stream_enable_i915(codec, per_pin); + } + + param = snd_hda_codec_read(codec, per_pin->cvt_nid, 0, + AC_VERB_GET_DIGI_CONVERT_1, 0); + if (!(param & (AC_DIG3_KAE << 16))) { + codec_dbg(codec, "HDMI: KAE: restore DIG3_KAE\n"); + silent_stream_set_kae(codec, per_pin, true); + } + } + } + + return res; +} +#endif + /* precondition and allocation for Intel codecs */ static int alloc_intel_hdmi(struct hda_codec *codec) { @@ -3056,8 +3138,14 @@ static int patch_i915_adlp_hdmi(struct hda_codec *codec) if (!res) { spec = codec->spec; - if (spec->silent_stream_type) + if (spec->silent_stream_type) { spec->silent_stream_type = SILENT_STREAM_KAE; + +#ifdef CONFIG_PM + codec->patch_ops.resume = i915_adlp_hdmi_resume; + codec->patch_ops.suspend = i915_adlp_hdmi_suspend; +#endif + } } return res;