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=-9.3 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 01442C433E2 for ; Mon, 25 May 2020 07:21:58 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 CB20C2065F for ; Mon, 25 May 2020 07:21:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Pmqbvbjf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CB20C2065F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0A8FC89DBA; Mon, 25 May 2020 07:21:10 +0000 (UTC) Received: from mail-pg1-x541.google.com (mail-pg1-x541.google.com [IPv6:2607:f8b0:4864:20::541]) by gabe.freedesktop.org (Postfix) with ESMTPS id 71F9E89D5E for ; Mon, 25 May 2020 03:41:49 +0000 (UTC) Received: by mail-pg1-x541.google.com with SMTP id w20so3091634pga.6 for ; Sun, 24 May 2020 20:41:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=Eu+Ho/X9r7MZN52F/RomcQQtgjiQ+X/m9AkGhdRXtC0=; b=PmqbvbjfQbPp8aCgYV4adtOizlxzzoYkkP3BmW00smgp2fP0Bgb6gdyaUQ4hSIboyv v17woXHMmCbO+WITpNoew3ZTtwk+GINDY8hwKAcYqbhKR5mfY5n8Sx6wOC3DKlVsJ254 LC94GQMZAP7XMrauRY3joLeFA5EyYlu3MTIORwdh5K6lKQ4XbdESZQCBS+FTPbumlf4A WElSv97Cre7PEAgs33dgrOqpa7Caw6r+g2WUAH+gf6a6dTsV05j64XII4l4nOrXjlXB5 lVAnOeQ9wLz5J4uOpLCjlTipqGfMETbFE4vqCnbX2n8GsVykhRXpzBRU8Xuzqeu9NO5H w0GQ== 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:in-reply-to :references; bh=Eu+Ho/X9r7MZN52F/RomcQQtgjiQ+X/m9AkGhdRXtC0=; b=Eck+5+jjuEurTbIsaOPDZmq3Gd5XzXGB1XgIPl0hNFGMpgqs3KnPBiMwpFxXV4ytJ3 Vr9DsRPnGGE1ZpEO51jZxVnoT8Qle54DbcZxHch4k6ChMoXKY11annzsR5emSTwRHCgn FiYf4Bb8y7w6XpDy9/TGPHBmWeUyAPuP512mQ5fNkcFkh6LH37/N4Nw+M52+1snGs208 OCNkaJ8kxpEAJpzdDRNv9PAkPGI4DzfvCpBFeJzbNqELc1BIvFEkjTn0vTAafLTJTdb4 kKXoE9JO7xLURXC0gfYk8IpIjzBI0jD3xBqwDNAZWso7zMlaYnjWeLXNmQuKX3Wrt4Xj g3Mw== X-Gm-Message-State: AOAM5303o6HjJsqjZShsECGnaS14cctsPkayEXtOO8mXnHMD+oTsBIXq ZIRVaA5shb4oTn50tZ+nUQk= X-Google-Smtp-Source: ABdhPJxIuHMaJzv5SBEYVh6aGCYw3zkHcCsCQujjuOk1hJAg5OSAvXpvA0RjBvenltA1HqrMvGbYhQ== X-Received: by 2002:a65:41c8:: with SMTP id b8mr23889318pgq.265.1590378108951; Sun, 24 May 2020 20:41:48 -0700 (PDT) Received: from fmin-OptiPlex-7060.nreal.work ([103.206.191.44]) by smtp.gmail.com with ESMTPSA id 7sm11981695pfc.203.2020.05.24.20.41.44 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 24 May 2020 20:41:48 -0700 (PDT) From: dillon.minfei@gmail.com To: robh+dt@kernel.org, p.zabel@pengutronix.de, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com, thierry.reding@gmail.com, sam@ravnborg.org, airlied@linux.ie, daniel@ffwll.ch, mturquette@baylibre.com, sboyd@kernel.org Subject: [PATCH v5 8/8] spi: flags 'SPI_CONTROLLER_MUST_RX' and 'SPI_CONTROLLER_MUST_TX' can't be coexit with 'SPI_3WIRE' mode Date: Mon, 25 May 2020 11:41:02 +0800 Message-Id: <1590378062-7965-9-git-send-email-dillon.minfei@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1590378062-7965-1-git-send-email-dillon.minfei@gmail.com> References: <1590378062-7965-1-git-send-email-dillon.minfei@gmail.com> X-Mailman-Approved-At: Mon, 25 May 2020 07:21:04 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-spi@vger.kernel.org, dillon min , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: dillon min since chip spi driver need get the transfer direction by 'tx_buf' and 'rx_buf' of 'struct spi_transfer' in 'SPI_3WIRE' mode. so, we need bypass 'SPI_CONTROLLER_MUST_RX' and 'SPI_CONTROLLER_MUST_TX' feature in 'SPI_3WIRE' mode Signed-off-by: dillon min --- drivers/spi/spi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index c92c894..f884411 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -1023,7 +1023,8 @@ static int spi_map_msg(struct spi_controller *ctlr, struct spi_message *msg) void *tmp; unsigned int max_tx, max_rx; - if (ctlr->flags & (SPI_CONTROLLER_MUST_RX | SPI_CONTROLLER_MUST_TX)) { + if ((ctlr->flags & (SPI_CONTROLLER_MUST_RX | SPI_CONTROLLER_MUST_TX)) + && !(msg->spi->mode & SPI_3WIRE)) { max_tx = 0; max_rx = 0; -- 2.7.4 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel