From patchwork Tue May 19 14:26:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pratyush Yadav X-Patchwork-Id: 11557801 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 7F5E41391 for ; Tue, 19 May 2020 14:27:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 677442083E for ; Tue, 19 May 2020 14:27:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="sTNGSLoH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729166AbgESO1h (ORCPT ); Tue, 19 May 2020 10:27:37 -0400 Received: from lelv0142.ext.ti.com ([198.47.23.249]:43582 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729159AbgESO1f (ORCPT ); Tue, 19 May 2020 10:27:35 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 04JER3Mp005249; Tue, 19 May 2020 09:27:03 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1589898423; bh=8wsmxHh8Fj6nnuOv4RqixX/76ikZXmO9s3dBnceWxdw=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=sTNGSLoHgIbZldl7H5+uVC20Pf2pG9ekXgjXgkNBY8SbtsRpdN09a9leXDHl+9ybt Q6/Tj/OZRDWK/4tqj2lW31Yk57bicxoQCbDo8UZnu+ATbfq37ijMXewSV9/TaNb5k4 bReo/wFDviBlwRrvG+OjEOiwfea/X/dz3qELbXgE= Received: from DFLE113.ent.ti.com (dfle113.ent.ti.com [10.64.6.34]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTP id 04JER3Hr037848; Tue, 19 May 2020 09:27:03 -0500 Received: from DFLE111.ent.ti.com (10.64.6.32) by DFLE113.ent.ti.com (10.64.6.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Tue, 19 May 2020 09:27:03 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE111.ent.ti.com (10.64.6.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Tue, 19 May 2020 09:27:03 -0500 Received: from pratyush-OptiPlex-790.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 04JEQgjL008313; Tue, 19 May 2020 09:26:58 -0500 From: Pratyush Yadav To: Tudor Ambarus , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Mark Brown , Nicolas Ferre , Alexandre Belloni , Ludovic Desroches , Matthias Brugger , , , , , CC: Pratyush Yadav , Sekhar Nori , Boris Brezillon , Mason Yang Subject: [PATCH v5 03/19] spi: spi-mtk-nor: reject DTR ops Date: Tue, 19 May 2020 19:56:25 +0530 Message-ID: <20200519142642.24131-4-p.yadav@ti.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200519142642.24131-1-p.yadav@ti.com> References: <20200519142642.24131-1-p.yadav@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Double Transfer Rate (DTR) ops are added in spi-mem. But this controller doesn't support DTR transactions. Since we don't use the default supports_op(), which rejects all DTR ops, do that explicitly in our supports_op(). Signed-off-by: Pratyush Yadav --- drivers/spi/spi-mtk-nor.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/spi/spi-mtk-nor.c b/drivers/spi/spi-mtk-nor.c index 7bc302b50396..7015dccedf00 100644 --- a/drivers/spi/spi-mtk-nor.c +++ b/drivers/spi/spi-mtk-nor.c @@ -211,6 +211,10 @@ static bool mtk_nor_supports_op(struct spi_mem *mem, if (op->cmd.buswidth != 1) return false; + /* DTR ops not supported. */ + if (op->cmd.dtr || op->addr.dtr || op->dummy.dtr || op->data.dtr) + return false; + if ((op->addr.nbytes == 3) || (op->addr.nbytes == 4)) { if ((op->data.dir == SPI_MEM_DATA_IN) && mtk_nor_match_read(op)) return true;