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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,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 04EAFC07E9C for ; Mon, 12 Jul 2021 15:50:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DDCD661242 for ; Mon, 12 Jul 2021 15:50:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233875AbhGLPx2 (ORCPT ); Mon, 12 Jul 2021 11:53:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46900 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230228AbhGLPx2 (ORCPT ); Mon, 12 Jul 2021 11:53:28 -0400 Received: from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com [IPv6:2607:f8b0:4864:20::1029]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D305FC0613E5 for ; Mon, 12 Jul 2021 08:50:39 -0700 (PDT) Received: by mail-pj1-x1029.google.com with SMTP id g6-20020a17090adac6b029015d1a9a6f1aso192865pjx.1 for ; Mon, 12 Jul 2021 08:50:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=XITR/kwZy//PlpcIAsFK/jAVgSCAdwr/J1KWtmSxoRU=; b=NmIpqyWgbVpP8SrdaAQTFC7pf8nGBDa5ujmPMZwL+IEvLMUQO1XdnMqnvc4rZQ4WIc 8bcGM0vtpHFoMVNbpewcP2u55iRVmD5fLe41pbi9xLXa/Wa+UrtLyt7u81QuFJm+t3IQ fpLm7+zrNSlwsTi1+lUxSuSDNuvfNM+VJMFz0= 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:mime-version :content-transfer-encoding; bh=XITR/kwZy//PlpcIAsFK/jAVgSCAdwr/J1KWtmSxoRU=; b=a5La+KBmBhKc82p2xyq+TIrOlK3Ms4lM8so/WlA8b0U5N064zKq6EC3Fb8D8Zho7Ro BRQxfwXbji+78eYrPpanemixVDkdtgWUVqwkZI9ow34EGogZx+WL8+Zf0/F6aw9Ev7L7 GMY/LtzkPj9460CHhSeROfwYf9ZDXg4suDlo2DJCBZz5qUOwfpYgbBLJRr+p7DCuePIc yRiPy38aEpH/As2VNXNzSEdPakaw1MhinbmUBpyHEnZY6Q1jE4vzLzfe7iqmNjTd3sKf ADrjbR+YEoBIowFrcx6CCMNmz+Qngw4I09xDQIN9b+bZfu9q1ldUYb5JuXp473KO72QP w7XQ== X-Gm-Message-State: AOAM532n+uVBuGs1lWAe3Zy1W3FQnS0DwxIOxQhay44HIwnBXx/njODP T3Ql9sFrnGOthGIBK7acJ2lnpg== X-Google-Smtp-Source: ABdhPJwqh/PO/r75ZVxPjCtHmUaaMELknvcWs207dTZChUH9u3XbcJZFzJ1thLq5Qqg7tTzacp+TNw== X-Received: by 2002:a17:902:a9c7:b029:12b:349:b318 with SMTP id b7-20020a170902a9c7b029012b0349b318mr7287990plr.13.1626105039398; Mon, 12 Jul 2021 08:50:39 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:202:201:da04:fb7:6001:b6d1]) by smtp.gmail.com with ESMTPSA id n33sm17772436pgm.55.2021.07.12.08.50.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Jul 2021 08:50:38 -0700 (PDT) From: Douglas Anderson To: Mark Brown Cc: akashast@codeaurora.org, vkoul@kernel.org, swboyd@chromium.org, Douglas Anderson , Andy Gross , Bjorn Andersson , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org Subject: [PATCH] spi: spi-geni-qcom: Remove confusing comment about setting the watermark Date: Mon, 12 Jul 2021 08:50:17 -0700 Message-Id: <20210712085010.1.Ie3bb9f9d30d6475bb75251d32635194c1c72b9ee@changeid> X-Mailer: git-send-email 2.32.0.93.g670b81a890-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The comment in setup_fifo_xfer() about setting the watermark wasn't quite proper grammar and also stopped making sense around commit 6d66507d9b55 ("spi: spi-geni-qcom: Don't wait to start 1st transfer if transmitting"). After that commit we actually start the transfer _before_ the watermark interrupt comes. I don't think the comment really has any value anymore. We've already got a comment when we grab the spinlock saying that our interrupt can come any time as a result of the things in the locked section. Let's just remove it. Signed-off-by: Douglas Anderson --- drivers/spi/spi-geni-qcom.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c index b3861fb88711..2f51421e2a71 100644 --- a/drivers/spi/spi-geni-qcom.c +++ b/drivers/spi/spi-geni-qcom.c @@ -549,12 +549,6 @@ static void setup_fifo_xfer(struct spi_transfer *xfer, */ spin_lock_irq(&mas->lock); geni_se_setup_m_cmd(se, m_cmd, FRAGMENTATION); - - /* - * TX_WATERMARK_REG should be set after SPI configuration and - * setting up GENI SE engine, as driver starts data transfer - * for the watermark interrupt. - */ if (m_cmd & SPI_TX_ONLY) { if (geni_spi_handle_tx(mas)) writel(mas->tx_wm, se->base + SE_GENI_TX_WATERMARK_REG); -- 2.32.0.93.g670b81a890-goog