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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 CF710FA372C for ; Fri, 8 Nov 2019 14:10:21 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A084121848 for ; Fri, 8 Nov 2019 14:10:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="oLkOgR2x"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="HAixXYSq" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A084121848 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ETdEnxXlePHpv3yyUgNr3ApNh5zTz0RpDUrnw6VZU74=; b=oLkOgR2xKhkSAg S0IXt4S33zrCCDKU8zQy+T40ddzxYowqVd+uheJnrrAOZ76fxcEGQ60iv2zt4u0JCiOHDCe04ojIP CQopwEwuP+T3lohwhHuIR/V6V3nHiPg38f/0rQtjOav9JsCMC4HZ3tnt8GL4beK4ChFegCClaFu0X qLYgYdj12z7YIttSDp4zYdxcF7Ji1CSk9yhgQTdjyN4aatiq/cUGFD3sV0X2u8/jqie2xtL6w/nRw +3gqVMUaCtFo9WqOJ/LLslRWqXdObcDCmbbRDBj1nWm12upUoGrzc3sLpIlaaeQwGOXlHq4G6IDpY XN/SyoxJz06FBHimx+IQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iT4xw-0002AL-RU; Fri, 08 Nov 2019 14:10:20 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iT4wA-0006r9-R3 for linux-arm-kernel@bombadil.infradead.org; Fri, 08 Nov 2019 14:08:30 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=xA0cX5X/Y7jat8grCqpD1sOGVRzZcJmvZ9p2WYzh3vE=; b=HAixXYSqRhTz7znaxN2A3nfYDP sEXnN22aMsYGbjrwtdEgVFr29xbNt/S1cJ41c0PemitCOKPOt5ECCpA0BrNZbO0URNgRWv+jK0ycB f6Rlc6znSiFlezv0Q+wEvDugNqYdOj3w9K7s79tEbY6vuwmjVUh0PN379+sbUB7e/KCGMtbF6aRcl oj521acNb4Lz12KATIQ5G2iQNaahQwEYfvoZpjjoD1DN0QeIUEBt6AN/onLZQjiviUeMlD26m0m1A 1fQKZap5aiOr3ExgGzZCYlZDhCIytEbjnL5WUVwQhXQmkqkxR/9e2eH/ErgibvNDxMgkdPHCHlsiQ 8Tp3XW9A==; Received: from relay7-d.mail.gandi.net ([217.70.183.200]) by casper.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iT4we-00056h-3x for linux-arm-kernel@lists.infradead.org; Fri, 08 Nov 2019 14:09:02 +0000 X-Originating-IP: 86.206.246.123 Received: from localhost.localdomain (lfbn-tou-1-421-123.w86-206.abo.wanadoo.fr [86.206.246.123]) (Authenticated sender: miquel.raynal@bootlin.com) by relay7-d.mail.gandi.net (Postfix) with ESMTPSA id 8BC8F20006; Fri, 8 Nov 2019 14:07:47 +0000 (UTC) From: Miquel Raynal To: Mark Brown , Michal Simek , Naga Sureshkumar Relli Subject: [PATCH v2 1/7] spi: zynq-qspi: Anything else than CS0 is not supported yet Date: Fri, 8 Nov 2019 15:07:38 +0100 Message-Id: <20191108140744.1734-2-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191108140744.1734-1-miquel.raynal@bootlin.com> References: <20191108140744.1734-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191108_140900_216893_071B1356 X-CRM114-Status: GOOD ( 14.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Miquel Raynal , Tudor Ambarus , linux-arm-kernel@lists.infradead.org, Thomas Petazzoni , linux-spi@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Unlike what the driver is currently advertizing, CS0 only can be used, CS1 is not supported at all. Prevent people to use CS1. Signed-off-by: Miquel Raynal --- drivers/spi/spi-zynq-qspi.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-zynq-qspi.c b/drivers/spi/spi-zynq-qspi.c index 5cf6993ddce5..713f9a03a40a 100644 --- a/drivers/spi/spi-zynq-qspi.c +++ b/drivers/spi/spi-zynq-qspi.c @@ -681,10 +681,14 @@ static int zynq_qspi_probe(struct platform_device *pdev) ret = of_property_read_u32(np, "num-cs", &num_cs); - if (ret < 0) + if (ret < 0) { ctlr->num_chipselect = ZYNQ_QSPI_DEFAULT_NUM_CS; - else + } else if (num_cs > ZYNQ_QSPI_DEFAULT_NUM_CS) { + dev_err(&pdev->dev, "anything but CS0 is not yet supported\n"); + goto remove_master; + } else { ctlr->num_chipselect = num_cs; + } ctlr->mode_bits = SPI_RX_DUAL | SPI_RX_QUAD | SPI_TX_DUAL | SPI_TX_QUAD; -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel