From patchwork Wed Oct 14 10:13:54 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 11837327 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 900B51580 for ; Wed, 14 Oct 2020 10:14:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 75CD620848 for ; Wed, 14 Oct 2020 10:14:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729881AbgJNKOn (ORCPT ); Wed, 14 Oct 2020 06:14:43 -0400 Received: from mail.baikalelectronics.com ([87.245.175.226]:46092 "EHLO mail.baikalelectronics.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729993AbgJNKOT (ORCPT ); Wed, 14 Oct 2020 06:14:19 -0400 Received: from localhost (unknown [127.0.0.1]) by mail.baikalelectronics.ru (Postfix) with ESMTP id 13EF980023F8; Wed, 14 Oct 2020 10:14:14 +0000 (UTC) X-Virus-Scanned: amavisd-new at baikalelectronics.ru Received: from mail.baikalelectronics.ru ([127.0.0.1]) by localhost (mail.baikalelectronics.ru [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DsxEGLhxyhtr; Wed, 14 Oct 2020 13:14:13 +0300 (MSK) From: Serge Semin To: Mathias Nyman , Felipe Balbi , Greg Kroah-Hartman , Rob Herring CC: Serge Semin , Serge Semin , Alexey Malahov , Pavel Parkhomenko , Andy Gross , Bjorn Andersson , Manu Gautam , Roger Quadros , Lad Prabhakar , Yoshihiro Shimoda , Neil Armstrong , Kevin Hilman , , , , , , , Subject: [PATCH 12/20] dt-bindings: usb: dwc3: Add Tx De-emphasis restrictions Date: Wed, 14 Oct 2020 13:13:54 +0300 Message-ID: <20201014101402.18271-13-Sergey.Semin@baikalelectronics.ru> In-Reply-To: <20201014101402.18271-1-Sergey.Semin@baikalelectronics.ru> References: <20201014101402.18271-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org In accordance with the driver comments the PIPE3 de-emphasis can be tuned to be either -6dB, -2.5dB or disabled. Let's add the de-emphasis property restriction so the DT schema would make sure the controller DT node is equipped with correct value. Signed-off-by: Serge Semin Reviewed-by: Rob Herring --- Changelog v2: - Grammar fix: "s/tunned/tuned" - Grammar fix: remove redundant "or" conjunction. --- Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml index 2f746ac64e71..307affb669aa 100644 --- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml +++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml @@ -145,6 +145,10 @@ properties: The value driven to the PHY is controlled by the LTSSM during USB3 Compliance mode. $ref: /schemas/types.yaml#/definitions/uint8 + enum: + - 0 # -6dB de-emphasis + - 1 # -3.5dB de-emphasis + - 2 # No de-emphasis snps,dis_u3_susphy_quirk: description: When set core will disable USB3 suspend phy