From patchwork Fri Jan 22 18:18:36 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 8091711 Return-Path: X-Original-To: patchwork-linux-rockchip@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 462C2BEEE5 for ; Fri, 22 Jan 2016 18:19:56 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3F0D8204DE for ; Fri, 22 Jan 2016 18:19:55 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7444D2034A for ; Fri, 22 Jan 2016 18:19:54 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1aMgJL-0003wt-NT; Fri, 22 Jan 2016 18:19:51 +0000 Received: from mail-pa0-x234.google.com ([2607:f8b0:400e:c03::234]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1aMgJK-0003t6-5I for linux-rockchip@lists.infradead.org; Fri, 22 Jan 2016 18:19:51 +0000 Received: by mail-pa0-x234.google.com with SMTP id cy9so45423703pac.0 for ; Fri, 22 Jan 2016 10:19:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=wHGKVlgUxhIT3p7iicUoH+h0cOlqI4q9r/Hhed7XnEA=; b=ZN5W0GqURW+JMi1olEIjj8AzCQ69RQ2k6TAsLm15tJvWea/xwv7lIiMJASw9EFm8fY kaCaLhiUvtL/L5mTdcJlhdFa0lpwo8ISWVbPQtwtsUKvircC2yfh86ZyVonQ3Szpo9rk yeCS/myD+dyrwRlicqQsKnZW0thmRRAiRdpm0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=wHGKVlgUxhIT3p7iicUoH+h0cOlqI4q9r/Hhed7XnEA=; b=fmgK4LmTOG2VNhEGa+wf/nL7wDNj7ac/NXCR72z8TFSJl3tv/njoOfmDGodNBX5jl8 N25I34J7Z80BQhuvBoXCnDcHTS60CXPUQmVqDHGOAr3FzQDAMiEAcJFx/VjFZOfqt6lP fu94OuXHRa9zZ5moA+EwohJRevRxMrGyXVJ1pmrvitDuNcMH+wkrqmEJMyTmSxV73rne iFBwuypz+YoWgZgfjAlb2AprRaJpGTToQ/s/nI7OjvbwxByr+e6LBDJSBIRIpwH/ULgV jfeGX21zFqNFsLxscVAhz7D4uPXMPlp8hoP+Xr9iN+LTapTBhuJRBr09EfxOsOnJ0pKh gLGw== X-Gm-Message-State: AG10YOTvIYA2utfHe1uqfAGjXSdrG2/nO91jg6XYAcaXo4GQ8erb4cjfoqwtzbUXtN0yzg== X-Received: by 10.66.158.129 with SMTP id wu1mr6423102pab.146.1453486769585; Fri, 22 Jan 2016 10:19:29 -0800 (PST) Received: from tictac.mtv.corp.google.com ([172.22.65.76]) by smtp.gmail.com with ESMTPSA id y86sm11276415pfa.26.2016.01.22.10.19.28 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 22 Jan 2016 10:19:28 -0800 (PST) From: Douglas Anderson To: John Youn , balbi@ti.com, kever.yang@rock-chips.com Subject: [PATCH v5 01/21] usb: dwc2: rockchip: Make the max_transfer_size automatic Date: Fri, 22 Jan 2016 10:18:36 -0800 Message-Id: <1453486736-15358-2-git-send-email-dianders@chromium.org> X-Mailer: git-send-email 2.7.0.rc3.207.g0ac5344 In-Reply-To: <1453486736-15358-1-git-send-email-dianders@chromium.org> References: <1453486736-15358-1-git-send-email-dianders@chromium.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160122_101950_338372_654AB6FD X-CRM114-Status: GOOD ( 11.28 ) X-Spam-Score: -2.7 (--) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: huangtao@rock-chips.com, gregory.herrero@intel.com, heiko@sntech.de, johnyoun@synopsys.com, gregkh@linuxfoundation.org, ming.lei@canonical.com, linux-usb@vger.kernel.org, Douglas Anderson , linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, yousaf.kaukab@intel.com, stern@rowland.harvard.edu, william.wu@rock-chips.com, Julius Werner , dinguyen@opensource.altera.com MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Previously we needed to set the max_transfer_size to explicitly be 65535 because the old driver would detect that our hardware could support much bigger transfers and then would try to do them. This wouldn't work since the DMA alignment code couldn't support it. Later in commit e8f8c14d9da7 ("usb: dwc2: clip max_transfer_size to 65535") upstream added support for clipping this automatically. Since that commit it has been OK to just use "-1" (default), but nobody bothered to change it. Let's change it to default now for two reasons: - It's nice to use autodetected params. - If we can remove the 65535 limit, we can transfer more! Signed-off-by: Douglas Anderson Acked-by: John Youn Tested-by: Heiko Stuebner --- Changes in v5: None Changes in v4: - Add John's Acks from Changes in v3: None Changes in v2: None drivers/usb/dwc2/platform.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c index 510f787434b3..5008a467ce06 100644 --- a/drivers/usb/dwc2/platform.c +++ b/drivers/usb/dwc2/platform.c @@ -129,7 +129,7 @@ static const struct dwc2_core_params params_rk3066 = { .host_rx_fifo_size = 520, /* 520 DWORDs */ .host_nperio_tx_fifo_size = 128, /* 128 DWORDs */ .host_perio_tx_fifo_size = 256, /* 256 DWORDs */ - .max_transfer_size = 65535, + .max_transfer_size = -1, .max_packet_count = -1, .host_channels = -1, .phy_type = -1,