From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 92BD9C4453C for ; Wed, 22 Jul 2026 15:45:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=UxqTQUedMW11L44cfz0sokOiKw9TU6GOz2WqvONqzw4=; b=PCrIQfHmO3R+PqH9S62IC5a+SO 5TZWIGBu1kSBHLU8O0Xru5X9emC7qYl5F554xjhbuQk0y7mga5/fN4WG/HsFtddiCi9/MSE84CHOt zNz8xgBRVHeW3VqAQc2lgaI/02az0HwHGLFMt4lHU+MY24CbvJ4Qn6LIC2H0jG9/Lqn5RnTQasBB1 FuE1Ea4XI/tphkQznJOZDwj7ZkaKYEs9S/IswOkKFU3lr2lJLE50zukCfdJXrFH4POMRl+Uwzgjoc LbL6jTJBB24dDkCPXG8PQHXEF/f8jIOhXvozG4Cwauar6hjRs/WMficTPrWt7xcFx5doQNuCa3lvp 6eJv1dQA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wmZ8p-0000000CECW-0bh5; Wed, 22 Jul 2026 15:45:51 +0000 Received: from pidgin.makrotopia.org ([2a07:2ec0:3002::65]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wmZ8l-0000000CEAi-3Vit; Wed, 22 Jul 2026 15:45:49 +0000 Received: from local by pidgin.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.99) (envelope-from ) id 1wmZ8R-000000006a3-2gyv; Wed, 22 Jul 2026 15:45:27 +0000 Date: Wed, 22 Jul 2026 16:45:24 +0100 From: Daniel Golle To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Luca Ceresoli , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Matthias Brugger , AngeloGioacchino Del Regno , Hermes Wu , Allen Chen , Pin-yen Lin , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Cc: Chen-Yu Tsai Subject: [PATCH v5 00/11] drm/bridge: it6505: DP audio support + shared-DAI hw_params fix Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260722_084547_884537_7BF6D54B X-CRM114-Status: GOOD ( 11.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Revive HDMI/DP audio support for the it6505, originally posted by Jiaxin Yu [1], rebased onto current -next with the review feedback addressed: &client->dev is gone (the driver gained it6505->dev) and "#sound-dai-cells" has since been added by commit 325af1bef5b9 ("dt-bindings: display: bridge: it6505: Add #sound-dai-cells"). Patches 1-9 fix pre-existing bugs found during review of earlier versions of this series; they carry Fixes: tags and are ordered first so stable trees can pick them. Patch 10 wires up the it6505 audio helpers via hdmi_codec_ops, unblocking the mt8186-mt6366 sound card which references it6505 as the I2S3 codec. Patch 11 makes hw_params succeed with no display attached, needed when the I2S bus is shared with another codec as on MT8186 "steelix" Chromebooks, where the speaker path must keep working regardless of the it6505 link state. Tested on a MT8186 (google,steelix) Chromebook: the sound card comes up, speakers, microphone and headset jack work. HDMI/DP audio output itself could not be tested for lack of a suitable adapter cable. [1] https://lore.kernel.org/all/20230730180803.22570-4-jiaxin.yu@mediatek.com/ --- v5: * patch 1: serialise notifier registration state with extcon_lock * patch 2: also drop the runtime PM usage ref held for a connected display; retitled * new patches 3-7 and 9: more pre-existing fixes from v4 review (AUX unregister symmetry, poweroff error path, IRQ status read errors, two divisions by zero, of_node_put before use) * patch 10 (was 4): update plugged_cb/codec_dev under mode_lock * patches 8 and 11: no changes v4: https://lore.kernel.org/all/cover.1784681487.git.daniel@makrotopia.org/ * patch 1: quiesce extcon notifier and IRQ before cancelling work, initialise extcon_wq in probe; retitled * new patch 2: disable runtime PM on remove * patch 3 (was 2): collected Chen-Yu Tsai's Reviewed-by * patch 4 (was 3): start out muted; mute state and cached parameters updated under audio_lock; unregister codec after quiesce * patch 5 (was 4): apply audio defaults at probe time v3: https://lore.kernel.org/all/cover.1784600387.git.daniel@makrotopia.org/ * new patches 1 and 2, fixing a pre-existing use-after-free on remove() and an out-of-bounds read with channel_count == 0 * patch 3 (was 1): serialise audio enable/disable with audio_lock; track mute state so the FIFO-error IRQ cannot undo a mute * patch 4 (was 2): no changes v2: https://lore.kernel.org/all/cover.1784561622.git.daniel@makrotopia.org/ * keep and unregister the hdmi-codec platform_device on remove * initialise delayed_audio before registering the codec device * cancel delayed_audio synchronously on shutdown and remove * disable audio immediately when muting * patch 2: drop the encoder check instead of returning 0 early Daniel Golle (10): drm/bridge: it6505: quiesce event sources and work on remove() drm/bridge: it6505: balance and disable runtime PM on remove drm/bridge: it6505: unregister DP AUX adapter on bridge detach drm/bridge: it6505: complete poweroff even if disabling regulators fails drm/bridge: it6505: bail out of the IRQ handler when status reads fail drm/bridge: it6505: avoid division by zero in pixel clock calculation drm/bridge: it6505: avoid division by zero in audio FS debug print drm/bridge: it6505: guard against zero channel count in audio infoframe drm/bridge: it6505: hold endpoint OF node reference while parsing it drm/bridge: it6505: Don't reject audio hw_params without an encoder Jiaxin Yu (1): drm/bridge: it6505: Add audio support drivers/gpu/drm/bridge/ite-it6505.c | 247 +++++++++++++++++++++------- 1 file changed, 190 insertions(+), 57 deletions(-) base-commit: 0718283ab28bc3907e10b61a6b4be6fefa1cbb2f -- 2.55.0