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=-12.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 869DEC33CB1 for ; Fri, 17 Jan 2020 15:45:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5AA902072E for ; Fri, 17 Jan 2020 15:45:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579275901; bh=M1qcblMBtK2HgtYvCeU2tDdR8sWNbc9UeQ5cFmDrVjY=; h=From:To:Cc:Subject:In-Reply-To:Date:List-ID:From; b=X89ywC/7JxHr7HxuC7vCCi45VyPo01Db/uGbFUr0/p1HETDoQ4Y5miOQ9YIQm0qMl 1Fs0/FE/jDf6Q0xTlkBovcOVXa+2JgKX96ObQnEYWXdo10Ksg1d5a9wOycFQx5r4Qy EUPDo9Lt3YJgGcXO6mtnPMUg4Ows1ErcOV+zjIZY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729436AbgAQPpA (ORCPT ); Fri, 17 Jan 2020 10:45:00 -0500 Received: from heliosphere.sirena.org.uk ([172.104.155.198]:53976 "EHLO heliosphere.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729210AbgAQPoa (ORCPT ); Fri, 17 Jan 2020 10:44:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sirena.org.uk; s=20170815-heliosphere; h=Date:Message-Id:In-Reply-To: Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References: List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner: List-Archive; bh=aNhfz5xSnBJuJUs9Nvc6bIIqDmzUTd5NmPbncOiwvWE=; b=uS47EFmEcy6v 6VUGZtKkE6CLNVfKOiGdJ4Y+D3FKbQLqDXkvL/whTBUbIhZb56/s10W2LYkw9AlzH/OUb9+9ednIJ ZY8D7Hx+SwZ63UH0EMXbYLDUcp2j2HZqAR4zoONL6QKrukQoohacqjVjAjmaUJE6EnyfHy1YBl61M 6ZhTo=; Received: from fw-tnat-cam4.arm.com ([217.140.106.52] helo=fitzroy.sirena.org.uk) by heliosphere.sirena.org.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1isTnM-0006uW-An; Fri, 17 Jan 2020 15:44:24 +0000 Received: by fitzroy.sirena.org.uk (Postfix, from userid 1000) id 062EED02BD9; Fri, 17 Jan 2020 15:44:24 +0000 (GMT) From: Mark Brown To: Tomer Maimon Cc: avifishman70@gmail.com, benjaminfair@google.com, broonie@kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, Mark Brown , mark.rutland@arm.com, openbmc@lists.ozlabs.org, robh+dt@kernel.org, tali.perry1@gmail.com, venture@google.com, yuenn@google.com Subject: Applied "spi: npcm-pspi: improve spi transfer performance" to the spi tree In-Reply-To: <20200115162301.235926-3-tmaimon77@gmail.com> Message-Id: X-Patchwork-Hint: ignore Date: Fri, 17 Jan 2020 15:44:24 +0000 (GMT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The patch spi: npcm-pspi: improve spi transfer performance has been applied to the spi tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-5.6 All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From b4adf5b27d59cdefff1e6fcba99151edea65a9f7 Mon Sep 17 00:00:00 2001 From: Tomer Maimon Date: Wed, 15 Jan 2020 18:22:59 +0200 Subject: [PATCH] spi: npcm-pspi: improve spi transfer performance Improving spi 8 bit per word mode transfer performance by using 16 bit per word transfer and receive when the data length is even and larger than one. Signed-off-by: Tomer Maimon Link: https://lore.kernel.org/r/20200115162301.235926-3-tmaimon77@gmail.com Signed-off-by: Mark Brown --- drivers/spi/spi-npcm-pspi.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/spi/spi-npcm-pspi.c b/drivers/spi/spi-npcm-pspi.c index fe624731c74c..d224aa63dbce 100644 --- a/drivers/spi/spi-npcm-pspi.c +++ b/drivers/spi/spi-npcm-pspi.c @@ -178,6 +178,13 @@ static void npcm_pspi_setup_transfer(struct spi_device *spi, priv->mode = spi->mode; } + /* + * If transfer is even length, and 8 bits per word transfer, + * then implement 16 bits-per-word transfer. + */ + if (priv->bits_per_word == 8 && !(t->len & 0x1)) + t->bits_per_word = 16; + if (!priv->is_save_param || priv->bits_per_word != t->bits_per_word) { npcm_pspi_set_transfer_size(priv, t->bits_per_word); priv->bits_per_word = t->bits_per_word; -- 2.20.1