From patchwork Mon Aug 7 00:16:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kunihiko Hayashi X-Patchwork-Id: 131633 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:c44e:0:b0:3f2:4152:657d with SMTP id w14csp1152439vqr; Sun, 6 Aug 2023 17:35:23 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGq7N43zYEBtBJsO96G0MT90LSOHRr8+8qbGHQit0RevA3K0ereT+cQDHuQgZbCB5j1T5Do X-Received: by 2002:a2e:9dca:0:b0:2b6:a3a0:5f7 with SMTP id x10-20020a2e9dca000000b002b6a3a005f7mr5586001ljj.9.1691368522897; Sun, 06 Aug 2023 17:35:22 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1691368522; cv=none; d=google.com; s=arc-20160816; b=apfRZ/BwvJR6acbvK5ODaz4Fk/s1fcZal9cKd+OsbGPB8i4AdCbysth9niKNSy49nK k3xozSp/n48KWHBFvwBJw8yW/yPii7ib7No2G0iLaKZPWSPuLhEuGhdgBCeyZ/D1rxwy QJ2cNimwi2bnxI4v33z4v8PaoQpDMNk4cs2nzB+mlLJCwuq7bxGa7Jnbn1Uo603LEih+ olmzqMDU1ME+BlphE68uYDYUigcOxUkqfRY4ZukFaIvr4G4uDxRIC7PfQiMPEw9WXR/e vbVZR8gLTvAH8zNWuzRWDaVV5H7ZImFJYAY/MP8vjshVAcmr/3FipAXe90GjApfZX+vT mEMw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=5a0YVBM1KXuf92XS0W2KrHhD2shTvu8rUr8/6aj9xak=; fh=mYfWdevyHAgX1fgmT9WsKOSK2gxRxRN24g1G821/dQk=; b=uPE3Di+bOD4h9FsNRTQ1iQHzEsi1UerlM7LSwA2O6KesCnHrII+EX81wliqc9FgKFp CmhFcaInwneRI+8zdb6MbKZp5m8pGJhZVR6G9AL/B7L0w2Qq0RiLkvzuZuscqhHW+94X 44xFC4WQJKJsbvrNzRqgrE4FWdKto4USJJhnnkT602GhB+VuL6AgMt5Esc/+J6pcO2B8 MhlMQQSslKcUFL2djd7qZ/buOvaFsNvfWYAQs1BllT+gBcVCcBScrD1WIr0S7+ED1BRY gsHjDx9X7oT9tuCf4aDf1STRfylFKCOGP/7Q+EfsGz0BB/9vTD6NAD8EGVi9xlBLufcX zYCg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id y4-20020a17090614c400b0099b49483268si4926503ejc.301.2023.08.06.17.35.00; Sun, 06 Aug 2023 17:35:22 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229638AbjHGAQi (ORCPT + 99 others); Sun, 6 Aug 2023 20:16:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44228 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229436AbjHGAQh (ORCPT ); Sun, 6 Aug 2023 20:16:37 -0400 Received: from mx.socionext.com (mx.socionext.com [202.248.49.38]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 0376DFA; Sun, 6 Aug 2023 17:16:34 -0700 (PDT) Received: from unknown (HELO iyokan2-ex.css.socionext.com) ([172.31.9.54]) by mx.socionext.com with ESMTP; 07 Aug 2023 09:16:33 +0900 Received: from mail.mfilter.local (mail-arc02.css.socionext.com [10.213.46.40]) by iyokan2-ex.css.socionext.com (Postfix) with ESMTP id 6016D231A0F8; Mon, 7 Aug 2023 09:16:33 +0900 (JST) Received: from kinkan2.css.socionext.com ([172.31.9.51]) by m-FILTER with ESMTP; Mon, 7 Aug 2023 09:16:33 +0900 Received: from plum.e01.socionext.com (unknown [10.212.243.119]) by kinkan2.css.socionext.com (Postfix) with ESMTP id B6E81126DC0; Mon, 7 Aug 2023 09:16:32 +0900 (JST) From: Kunihiko Hayashi To: Serge Semin , Mark Brown Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, Kunihiko Hayashi Subject: [PATCH] spi: dw: Set default value if reg-io-width isn't specified Date: Mon, 7 Aug 2023 09:16:21 +0900 Message-Id: <20230807001621.196776-1-hayashi.kunihiko@socionext.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_NONE, SPF_PASS 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: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1773528440484237612 X-GMAIL-MSGID: 1773528440484237612 According to the dt-bindings, the default value of reg-io-width is 4. However, the value becomes zero when reg-io-width isn't specified. Should set the actual value to dws->reg_io_width, considering it referenced. Signed-off-by: Kunihiko Hayashi --- drivers/spi/spi-dw-mmio.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c index a963bc96c223..7eafc07ef7aa 100644 --- a/drivers/spi/spi-dw-mmio.c +++ b/drivers/spi/spi-dw-mmio.c @@ -369,7 +369,9 @@ static int dw_spi_mmio_probe(struct platform_device *pdev) dws->max_freq = clk_get_rate(dwsmmio->clk); - device_property_read_u32(&pdev->dev, "reg-io-width", &dws->reg_io_width); + if (device_property_read_u32(&pdev->dev, "reg-io-width", + &dws->reg_io_width)) + dws->reg_io_width = 4; num_cs = 4;