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 X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9BF3FC43441 for ; Wed, 10 Oct 2018 17:10:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 716CC20870 for ; Wed, 10 Oct 2018 17:10:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 716CC20870 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=v3.sk Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727585AbeJKAdd (ORCPT ); Wed, 10 Oct 2018 20:33:33 -0400 Received: from shell.v3.sk ([90.176.6.54]:54247 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727059AbeJKAdc (ORCPT ); Wed, 10 Oct 2018 20:33:32 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id CEE84BCF8F; Wed, 10 Oct 2018 19:10:25 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id s3tClKtFfeaQ; Wed, 10 Oct 2018 19:10:10 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 12426BCF91; Wed, 10 Oct 2018 19:10:00 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id uzCEfFFGFfLT; Wed, 10 Oct 2018 19:09:56 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id C3753BCF82; Wed, 10 Oct 2018 19:09:54 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven Cc: James Cameron , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Lubomir Rintel Subject: [PATCH 09/11] dt-bindings: spi/spi-pxa2xx: Add ready GPIO signal Date: Wed, 10 Oct 2018 19:09:34 +0200 Message-Id: <20181010170936.316862-10-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010170936.316862-1-lkundrak@v3.sk> References: <20181010170936.316862-1-lkundrak@v3.sk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This this is used to let the SPI master know that our FIFO is filled and we're ready to service a transfer. Only useful in slave mode. A signal like this is used by an embedded controller on a OLPC XO 1.75 machine, that happens to be a SPI master. Signed-off-by: Lubomir Rintel --- Documentation/devicetree/bindings/spi/spi-pxa2xx.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/spi/spi-pxa2xx.txt b/Docum= entation/devicetree/bindings/spi/spi-pxa2xx.txt index 89b2832283e3..681a82b40e6f 100644 --- a/Documentation/devicetree/bindings/spi/spi-pxa2xx.txt +++ b/Documentation/devicetree/bindings/spi/spi-pxa2xx.txt @@ -12,6 +12,8 @@ Optional properties: - cs-gpios: list of GPIO chip selects. See the SPI bus bindings, Documentation/devicetree/bindings/spi/spi-bus.txt - spi-slave: Empty property indicating the SPI controller is used in sla= ve mode. +- ready-gpio: GPIO used to signal a SPI master that the FIFO is filled + and we're ready to service a transfer. Only useful in slave mode. =20 Child nodes represent devices on the SPI bus See ../spi/spi-bus.txt --=20 2.19.0 From mboxrd@z Thu Jan 1 00:00:00 1970 From: lkundrak@v3.sk (Lubomir Rintel) Date: Wed, 10 Oct 2018 19:09:34 +0200 Subject: [PATCH 09/11] dt-bindings: spi/spi-pxa2xx: Add ready GPIO signal In-Reply-To: <20181010170936.316862-1-lkundrak@v3.sk> References: <20181010170936.316862-1-lkundrak@v3.sk> Message-ID: <20181010170936.316862-10-lkundrak@v3.sk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This this is used to let the SPI master know that our FIFO is filled and we're ready to service a transfer. Only useful in slave mode. A signal like this is used by an embedded controller on a OLPC XO 1.75 machine, that happens to be a SPI master. Signed-off-by: Lubomir Rintel --- Documentation/devicetree/bindings/spi/spi-pxa2xx.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/spi/spi-pxa2xx.txt b/Documentation/devicetree/bindings/spi/spi-pxa2xx.txt index 89b2832283e3..681a82b40e6f 100644 --- a/Documentation/devicetree/bindings/spi/spi-pxa2xx.txt +++ b/Documentation/devicetree/bindings/spi/spi-pxa2xx.txt @@ -12,6 +12,8 @@ Optional properties: - cs-gpios: list of GPIO chip selects. See the SPI bus bindings, Documentation/devicetree/bindings/spi/spi-bus.txt - spi-slave: Empty property indicating the SPI controller is used in slave mode. +- ready-gpio: GPIO used to signal a SPI master that the FIFO is filled + and we're ready to service a transfer. Only useful in slave mode. Child nodes represent devices on the SPI bus See ../spi/spi-bus.txt -- 2.19.0