From patchwork Tue Jan 5 17:49:33 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 7956881 Return-Path: X-Original-To: patchwork-linux-spi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 227549F3E6 for ; Tue, 5 Jan 2016 17:50:39 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4893A2025B for ; Tue, 5 Jan 2016 17:50:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6B3A120221 for ; Tue, 5 Jan 2016 17:50:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752783AbcAERuV (ORCPT ); Tue, 5 Jan 2016 12:50:21 -0500 Received: from mezzanine.sirena.org.uk ([106.187.55.193]:37069 "EHLO mezzanine.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753175AbcAERtj (ORCPT ); Tue, 5 Jan 2016 12:49:39 -0500 Received: from cpc11-sgyl31-2-0-cust672.sgyl.cable.virginm.net ([94.175.94.161] helo=debutante) by mezzanine.sirena.org.uk with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1aGVjk-00021E-Qu; Tue, 05 Jan 2016 17:49:37 +0000 Received: from broonie by debutante with local (Exim 4.86) (envelope-from ) id 1aGVjh-0003Gg-Th; Tue, 05 Jan 2016 17:49:33 +0000 From: Mark Brown To: Michal Suchanek , Mark Brown Cc: linux-spi@vger.kernel.org In-Reply-To: Message-Id: Date: Tue, 05 Jan 2016 17:49:33 +0000 X-SA-Exim-Connect-IP: 94.175.94.161 X-SA-Exim-Mail-From: broonie@sirena.org.uk X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Subject: Applied "spi: fsl-espi: expose maximum transfer size limit" to the spi tree X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on mezzanine.sirena.org.uk) Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The patch spi: fsl-espi: expose maximum transfer size limit has been applied to the spi tree at git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git 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 b541eef125fa3ae0df84572459af4e7084cb6343 Mon Sep 17 00:00:00 2001 From: Michal Suchanek Date: Wed, 2 Dec 2015 10:38:21 +0000 Subject: [PATCH] spi: fsl-espi: expose maximum transfer size limit The fsl-espi hardware can trasfer at most 64K data so report teh limitation. Based on patch by Heiner Kallweit CC: Heiner Kallweit Signed-off-by: Michal Suchanek Signed-off-by: Mark Brown --- drivers/spi/spi-fsl-espi.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c index c27124a5ec8e..7fd6a4c009d2 100644 --- a/drivers/spi/spi-fsl-espi.c +++ b/drivers/spi/spi-fsl-espi.c @@ -643,6 +643,11 @@ static int fsl_espi_runtime_resume(struct device *dev) } #endif +static size_t fsl_espi_max_transfer_size(struct spi_device *spi) +{ + return SPCOM_TRANLEN_MAX; +} + static struct spi_master * fsl_espi_probe(struct device *dev, struct resource *mem, unsigned int irq) { @@ -670,6 +675,7 @@ static struct spi_master * fsl_espi_probe(struct device *dev, master->cleanup = fsl_espi_cleanup; master->transfer_one_message = fsl_espi_do_one_msg; master->auto_runtime_pm = true; + master->max_transfer_size = fsl_espi_max_transfer_size; mpc8xxx_spi = spi_master_get_devdata(master);