From patchwork Fri Jul 8 19:26:05 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: 588858 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C02BEC433EF for ; Fri, 8 Jul 2022 19:26:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239600AbiGHT0O (ORCPT ); Fri, 8 Jul 2022 15:26:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36886 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238768AbiGHT0O (ORCPT ); Fri, 8 Jul 2022 15:26:14 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 83A8E20189; Fri, 8 Jul 2022 12:26:13 -0700 (PDT) Received: from notapiano.myfiosgateway.com (pool-98-113-53-228.nycmny.fios.verizon.net [98.113.53.228]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nfraprado) by madras.collabora.co.uk (Postfix) with ESMTPSA id 52D5866019F2; Fri, 8 Jul 2022 20:26:10 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1657308371; bh=XB+Q5+iW9bzcYdl1fBbqu9s42fjAPkdcGjUotn5OaPM=; h=From:To:Cc:Subject:Date:From; b=aAjTkJkxs/dZshN+srt3jMFNrbpIL9P4Xd9CTTckQX5iZDBqf1Ce/WjXCA+ekWoUE qBLcmyhpoR/8rczvCLZwMVOp4tKqKTs9Y/nUzg+TSzbowItA6xb/GoxwjnEV2pUDgB wAF0Qq97/uPv3kXY8F5kdsfP3OrqUMLHDBulNZ1JJlqSACpP5Cx6vCW2rhmXt36eWf DXne89DgjSxE1AZWLja3vqAJiinx/G7Y1bTSjNcL07NZ5rg8zj9cC05qP4uLgFIEhT Jv5DHCY/Re4aRnglvJYWNVPjGBV75pGJDCmpGMO7p7OQDDQqqorNEs+XcEcptx5D8J UNHbLJPMIl2hA== From: =?utf-8?b?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= To: Greg Kroah-Hartman Cc: kernel@collabora.com, AngeloGioacchino Del Regno , =?utf-8?b?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= , Chunfeng Yun , Krzysztof Kozlowski , Matthias Brugger , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-usb@vger.kernel.org Subject: [PATCH] Revert "dt-bindings: usb: mtk-xhci: Make all clocks required" Date: Fri, 8 Jul 2022 15:26:05 -0400 Message-Id: <20220708192605.43351-1-nfraprado@collabora.com> X-Mailer: git-send-email 2.37.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org This reverts commit ebc4969ae125e65fdb563f66f4bfa7aec95f7eb4. That commit was supposed to make the binding better reflect the MediaTek XHCI hardware block by requiring all clocks to be present. But doing that also causes too much noise in the devicetrees, since it requires updating old MediaTek DTs to add clock handles for the fixed clocks, and going forward every new clock added to the binding would require even more updates. The commit also didn't update the example to match the changes, causing additional warnings. Instead let's keep the clocks optional so that old devicetrees can keep omitting the fixed clocks, and we'll just add the clocks as required on new DTs. Signed-off-by: Nícolas F. R. A. Prado Reviewed-by: Chunfeng Yun Reviewed-by: AngeloGioacchino Del Regno Acked-by: Rob Herring --- Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml index 1444d18ef9bc..63cbc2b62d18 100644 --- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml +++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml @@ -67,6 +67,7 @@ properties: maxItems: 1 clocks: + minItems: 1 items: - description: Controller clock used by normal mode - description: Reference clock used by low power mode etc @@ -75,8 +76,9 @@ properties: - description: controller clock clock-names: + minItems: 1 items: - - const: sys_ck + - const: sys_ck # required, the following ones are optional - const: ref_ck - const: mcu_ck - const: dma_ck