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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 23CE0C3DA7D for ; Wed, 28 Dec 2022 15:48:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233604AbiL1Psj (ORCPT ); Wed, 28 Dec 2022 10:48:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36446 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234062AbiL1PsX (ORCPT ); Wed, 28 Dec 2022 10:48:23 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 97F7E17E18 for ; Wed, 28 Dec 2022 07:48:22 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 368AE61572 for ; Wed, 28 Dec 2022 15:48:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1D244C433EF; Wed, 28 Dec 2022 15:48:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1672242501; bh=aY37VRJGVWapcHGzUuJcRsc53vUmD/yFtF5zhR7ZWiQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=m9bVXKSgXTe5/99sPLR5zxGduJJUbwd88jngsAear6cA5hg10Ratl3B0GXQqaQeQI gpVE0kSvm97H1A3iKMzYR2tAJWDJk6E+bac1LDDXnWatFHs+KPAeQ3XPMrRtOPXpwG wvkigfkGJRye3+bDrXPxcW67/HmG5Q/+gaeJnQQQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, "zhichao.liu" , Mark Brown , Sasha Levin Subject: [PATCH 6.0 0417/1073] spi: mt65xx: Add dma max segment size declaration Date: Wed, 28 Dec 2022 15:33:25 +0100 Message-Id: <20221228144339.349078816@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20221228144328.162723588@linuxfoundation.org> References: <20221228144328.162723588@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: zhichao.liu [ Upstream commit 309e98548c2b144512d0a212f2d786ae9694f5e4 ] Add spi dma max segment size declaration according to spi hardware capability, instead of 64KB by system default setting, to improve bus bandwidth for mass data transmission. Signed-off-by: zhichao.liu Link: https://lore.kernel.org/r/20220927083248.25404-1-zhichao.liu@mediatek.com Signed-off-by: Mark Brown Stable-dep-of: c6f7874687f7 ("spi: mediatek: Enable irq when pdata is ready") Signed-off-by: Sasha Levin --- drivers/spi/spi-mt65xx.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c index a7cc96aeb590..d6aff909fc36 100644 --- a/drivers/spi/spi-mt65xx.c +++ b/drivers/spi/spi-mt65xx.c @@ -1187,6 +1187,11 @@ static int mtk_spi_probe(struct platform_device *pdev) if (!dev->dma_mask) dev->dma_mask = &dev->coherent_dma_mask; + if (mdata->dev_comp->ipm_design) + dma_set_max_seg_size(dev, SZ_16M); + else + dma_set_max_seg_size(dev, SZ_256K); + ret = devm_request_irq(dev, irq, mtk_spi_interrupt, IRQF_TRIGGER_NONE, dev_name(dev), master); if (ret) -- 2.35.1