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=-3.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 84228C46470 for ; Tue, 7 Aug 2018 10:43:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 27CDA2173F for ; Tue, 7 Aug 2018 10:43:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=linaro.org header.i=@linaro.org header.b="Jc2u/rJx" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 27CDA2173F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org 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 S1732135AbeHGM5k (ORCPT ); Tue, 7 Aug 2018 08:57:40 -0400 Received: from mail-pl0-f68.google.com ([209.85.160.68]:43260 "EHLO mail-pl0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726968AbeHGM5k (ORCPT ); Tue, 7 Aug 2018 08:57:40 -0400 Received: by mail-pl0-f68.google.com with SMTP id x6-v6so6947804plv.10 for ; Tue, 07 Aug 2018 03:43:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=ni9lYCCJ1DN/2Vf0QZIqF72U+f3npylLIvSbMNmcQyA=; b=Jc2u/rJxX49nKk3ledHSW0qa+3DjKge/MKOOHVVXFU7Z4a3Qw6n6akwx1y2VTGF++i Rtk8U5XRUwHukoR+Tsu6qXf4j3XqrUH1bDtTsCPoxyqx2e3g3yfUqNs9XK7DbKXoFr1H FiNWcyhNI5+QnocMmmz9VbIIfK+yesSKgG6og= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=ni9lYCCJ1DN/2Vf0QZIqF72U+f3npylLIvSbMNmcQyA=; b=PN0na+g5da5AuL0IU28PN3avsF8gjC6+chj+dk3QxVbad1hiBO/UWufyAufrBZyOtC ln1ijS4c7ecM7+GTznsPEzhPjo/7EcpIxJDsrEYIawCJ7f7rUSpwJbQjsy95Qt0jso5T 7k6DqT399GYwJLo6yoKYPaGK7W9GEuzlNqJdpsq97hI+aIyAhrjlRtAJkHMECcvS2aHi xAghcsF8A+Yd4rJ7IMI1aYFfy7m/LwENSA4ioUfu6SJ2EMY7QVteMJSpn2NFy0GzA6EW 6LKONc8LCClNNnWSQro7XlfxAYx2uks1Dyb+9R2mfkwoPjee/0k3LglO2inHtOoZ8PwR WS8g== X-Gm-Message-State: AOUpUlHdvCLc9IEvX38gTwT7fs+kBLBNGKttwkeh/HBskC/I7bFuEmiP P2rLTo6Vb64IHk9+q8nvXrLwrw== X-Google-Smtp-Source: AAOMgpcapeW5UKOHkjUUwjQpH9++0a8wr4LafmyZGZ6zjyk+CAJMEJdsSpKTiWj5XaVWzfdvtb9Cbw== X-Received: by 2002:a17:902:2d24:: with SMTP id o33-v6mr17486946plb.38.1533638636738; Tue, 07 Aug 2018 03:43:56 -0700 (PDT) Received: from baolinwangubtpc.spreadtrum.com ([117.18.48.102]) by smtp.gmail.com with ESMTPSA id l127-v6sm2305547pfc.55.2018.08.07.03.43.53 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 07 Aug 2018 03:43:56 -0700 (PDT) From: Baolin Wang To: broonie@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com Cc: orsonzhai@gmail.com, zhang.lyra@gmail.com, lanqing.liu@spreadtrum.com, baolin.wang@linaro.org, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] dt-bindings: spi: Add Spreadtrum SPI controller documentation Date: Tue, 7 Aug 2018 18:43:37 +0800 Message-Id: <64681bf903104c8a02f118294e616e2a12a5ebe4.1533638405.git.baolin.wang@linaro.org> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lanqing Liu This patch adds the binding documentation for Spreadtrum SPI controller device. Signed-off-by: Lanqing Liu Signed-off-by: Baolin Wang --- Documentation/devicetree/bindings/spi/spi-sprd.txt | 31 ++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-sprd.txt diff --git a/Documentation/devicetree/bindings/spi/spi-sprd.txt b/Documentation/devicetree/bindings/spi/spi-sprd.txt new file mode 100644 index 0000000..06ff746 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/spi-sprd.txt @@ -0,0 +1,31 @@ +Spreadtrum SPI Controller + +Required properties: +- compatible: Should be "sprd,sc9860-spi". +- reg: Offset and length of SPI controller register space. +- interrupts: Should contain SPI interrupt. +- clock-names: Should contain following entries: + "spi" for SPI clock, + "source" for SPI source (parent) clock, + "enable" for SPI module enable clock. +- clocks: List of clock input name strings sorted in the same order + as the clock-names property. +- #address-cells: The number of cells required to define a chip select + address on the SPI bus. Should be set to 1. +- #size-cells: Should be set to 0. + +Optional properties: +- sprd,spi-interval: Specify the intervals of two SPI frames, which can be + converted to the delay clock cycles = interval number * 4 + 10. + +Example: +spi0: spi@70a00000{ + compatible = "sprd,sc9860-spi"; + reg = <0 0x70a00000 0 0x1000>; + interrupts = ; + clock-names = "spi", "source","enable"; + clocks = <&clk_spi0>, <&ext_26m>, <&clk_ap_apb_gates 5>; + sprd,spi-interval = <9>; + #address-cells = <1>; + #size-cells = <0>; +}; -- 1.7.9.5