From patchwork Mon May 9 20:58:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= X-Patchwork-Id: 571012 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 74497C433F5 for ; Mon, 9 May 2022 20:59:54 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id E617F16D9; Mon, 9 May 2022 22:59:01 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz E617F16D9 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1652129992; bh=j+wdfrc3FXi43X0VkODadFay6bg9FKNBstYCTMpecA8=; h=From:To:Subject:Date:Cc:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=qfCENUZIMIev0cIF4IgI/2UwzPXJK3BrX5d4nCZLt/WvmHIkA1DOu4v76noV7+y1b kotdqPGrU82iiN3usI6aOjWQN6fA4sCnPQeRQC8F6zFzxMXifI0OlXLgJA/z89S3qe aDZGc92pCayfjkLG1xyViBJs7kUNYcMnNKh+no4E= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 6C2E7F80237; Mon, 9 May 2022 22:59:00 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 4B32EF8025D; Mon, 9 May 2022 22:58:59 +0200 (CEST) Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 0AFF7F800D3 for ; Mon, 9 May 2022 22:58:52 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 0AFF7F800D3 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="U74Ljn72" Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: nfraprado) with ESMTPSA id 564EA1F42F48 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1652129932; bh=j+wdfrc3FXi43X0VkODadFay6bg9FKNBstYCTMpecA8=; h=From:To:Cc:Subject:Date:From; b=U74Ljn728Csp+ET2xThho9d1REqGnsswajm8GHfb67k2/RQZQWrjH38iHELrF44Nj xjNY6xlKH4B+68AQjDzJ4U9UXWZJZvRQXVg+CE577q+KjYL03FmMa/3TLtBWPFbaJc CZtRlFSbP4P6LvKc4+03hk9wBfEX4V83iyBOVw4o1AuuX92sETE6/YrYOK5HC+RLse usJnlXHQmatb4Tr1cmtTPqJ7rXIY3//R6J9m5ZXiAvwzZW6PwC2awkxQcnstozW5iT i1yFHZ/MGA/PZzO3rWICOJ8hBGFEU41lmBA6aSosZ+mnNFsx4iQ1oOlQOIjrv9EE/V Tc+X6cFr8gC1Q== From: =?utf-8?b?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= To: Mark Brown Subject: [PATCH v2] ASoC: dt-bindings: mediatek: mt8192: Add i2s-share properties Date: Mon, 9 May 2022 16:58:47 -0400 Message-Id: <20220509205847.607076-1-nfraprado@collabora.com> X-Mailer: git-send-email 2.36.0 MIME-Version: 1.0 Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org, =?utf-8?b?TsOt?= =?utf-8?b?Y29sYXMgRi4gUi4gQS4gUHJhZG8=?= , Liam Girdwood , Jiaxin Yu , linux-kernel@vger.kernel.org, Shane Chien , Rob Herring , linux-mediatek@lists.infradead.org, Krzysztof Kozlowski , Matthias Brugger , kernel@collabora.com, linux-arm-kernel@lists.infradead.org, AngeloGioacchino Del Regno X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" The Mediatek AFE PCM controller for MT8192 allows two I2S interfaces to share the same clock and act as a single interface with both input and output. Add patterns for these properties in the dt-binding. The property is split into two patterns in order to allow all valid interface pairings. Signed-off-by: Nícolas F. R. A. Prado --- The series from v1 of this patch was merged although some changes were still needed in this patch, so the v1 of this patch was reverted [1] and this standalone commit addresses the feedback from v1 and readds the property. [1] https://lore.kernel.org/all/20220509185625.580811-1-nfraprado@collabora.com v1: https://lore.kernel.org/all/20220429203039.2207848-2-nfraprado@collabora.com/ Changes in v2: - Added "mediatek," prefix to property - Rewrote and added more information to property description - Split into two patterns to validate that output-input pairings are done .../bindings/sound/mt8192-afe-pcm.yaml | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/mt8192-afe-pcm.yaml b/Documentation/devicetree/bindings/sound/mt8192-afe-pcm.yaml index 7a25bc9b8060..2abf43c6c2c3 100644 --- a/Documentation/devicetree/bindings/sound/mt8192-afe-pcm.yaml +++ b/Documentation/devicetree/bindings/sound/mt8192-afe-pcm.yaml @@ -54,6 +54,22 @@ properties: - const: aud_infra_clk - const: aud_infra_26m_clk +patternProperties: + "^mediatek,i2s[13579]-share$": + description: + Each I2S interface has a single data line, input if its index is even or + output if the index is odd. An input and an output I2S interface can be + used together as if they were a single I2S interface with both input and + output data lines by sharing the same clock. This property represents this + pairing. The value should be the name of the interface whose clock is + used, and the property name the other interface that depends on this + clock. + pattern: "^I2S[0268]$" + + "^mediatek,i2s[0268]-share$": + description: Same as above. + pattern: "^I2S[13579]$" + required: - compatible - interrupts