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: 1628808 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=collabora.com header.i=@collabora.com header.a=rsa-sha256 header.s=mail header.b=U74Ljn72; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by bilbo.ozlabs.org (Postfix) with ESMTP id 4Kxtnc25Drz9sG6 for ; Tue, 10 May 2022 06:59:00 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229890AbiEIVCu (ORCPT ); Mon, 9 May 2022 17:02:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59214 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229885AbiEIVCs (ORCPT ); Mon, 9 May 2022 17:02:48 -0400 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B2F812B8D24; Mon, 9 May 2022 13:58:53 -0700 (PDT) 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 Cc: kernel@collabora.com, AngeloGioacchino Del Regno , =?utf-8?b?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= , Jiaxin Yu , Krzysztof Kozlowski , Liam Girdwood , Matthias Brugger , Rob Herring , Shane Chien , alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org 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 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_PASS,SPF_PASS, T_SCC_BODY_TEXT_LINE,UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org 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