From patchwork Wed Feb 24 08:20:28 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 8402621 Return-Path: X-Original-To: patchwork-linux-spi@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 EF9E2C0553 for ; Wed, 24 Feb 2016 08:20:46 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 08D8B20361 for ; Wed, 24 Feb 2016 08:20:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1CF402035E for ; Wed, 24 Feb 2016 08:20:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757929AbcBXIUo (ORCPT ); Wed, 24 Feb 2016 03:20:44 -0500 Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:60030 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756950AbcBXIUo (ORCPT ); Wed, 24 Feb 2016 03:20:44 -0500 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1aYUgd-0004A9-5c; Wed, 24 Feb 2016 09:20:43 +0100 Received: from sha by dude.hi.pengutronix.de with local (Exim 4.86) (envelope-from ) id 1aYUgX-0002a9-Hm; Wed, 24 Feb 2016 09:20:37 +0100 From: Sascha Hauer To: linux-spi@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, Mark Brown , Anton Bondarenko , Sascha Hauer Subject: [PATCH 4/9] spi: imx: drop unncessary dma_is_inited variable Date: Wed, 24 Feb 2016 09:20:28 +0100 Message-Id: <1456302033-25638-5-git-send-email-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1456302033-25638-1-git-send-email-s.hauer@pengutronix.de> References: <1456302033-25638-1-git-send-email-s.hauer@pengutronix.de> X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-spi@vger.kernel.org Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, 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 There's no need for an extra dma_is_inited variable when we can equally well check for the existence of a DMA channel. Signed-off-by: Sascha Hauer --- drivers/spi/spi-imx.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index ec03304..567a242 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -102,7 +102,6 @@ struct spi_imx_data { unsigned int txfifo; /* number of words pushed in tx FIFO */ /* DMA */ - unsigned int dma_is_inited; unsigned int dma_finished; bool usedma; u32 wml; @@ -205,7 +204,7 @@ static bool spi_imx_can_dma(struct spi_master *master, struct spi_device *spi, { struct spi_imx_data *spi_imx = spi_master_get_devdata(master); - if (spi_imx->dma_is_inited && transfer->len >= spi_imx->wml && + if (master->dma_rx && transfer->len >= spi_imx->wml && (transfer->len % spi_imx->wml) == 0) return true; return false; @@ -827,8 +826,6 @@ static void spi_imx_sdma_exit(struct spi_imx_data *spi_imx) dma_release_channel(master->dma_tx); master->dma_tx = NULL; } - - spi_imx->dma_is_inited = 0; } static int spi_imx_sdma_init(struct device *dev, struct spi_imx_data *spi_imx, @@ -888,7 +885,6 @@ static int spi_imx_sdma_init(struct device *dev, struct spi_imx_data *spi_imx, master->max_dma_len = MAX_SDMA_BD_BYTES; spi_imx->bitbang.master->flags = SPI_MASTER_MUST_RX | SPI_MASTER_MUST_TX; - spi_imx->dma_is_inited = 1; return 0; err: