From patchwork Wed Aug 7 15:33:51 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Mack X-Patchwork-Id: 265530 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from casper.infradead.org (unknown [IPv6:2001:770:15f::2]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 552242C019A for ; Thu, 8 Aug 2013 01:35:26 +1000 (EST) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1V75lT-0005RI-Qh; Wed, 07 Aug 2013 15:35:08 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1V75lQ-0003jR-OC; Wed, 07 Aug 2013 15:35:05 +0000 Received: from svenfoo.org ([82.94.215.22] helo=mail.zonque.de) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1V75lB-0003ga-Pr; Wed, 07 Aug 2013 15:34:51 +0000 Received: from localhost (localhost [127.0.0.1]) by mail.zonque.de (Postfix) with ESMTP id E9BF4C0599; Wed, 7 Aug 2013 17:34:28 +0200 (CEST) Received: from mail.zonque.de ([127.0.0.1]) by localhost (rambrand.bugwerft.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tUoGlM_8W1Wf; Wed, 7 Aug 2013 17:34:28 +0200 (CEST) Received: from tamtam.fritz.box (p5DDC7ADB.dip0.t-ipconnect.de [93.220.122.219]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.zonque.de (Postfix) with ESMTPSA id 52B94C057D; Wed, 7 Aug 2013 17:34:27 +0200 (CEST) From: Daniel Mack To: haojian.zhuang@linaro.org, eric.y.miao@gmail.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH 02/20] mtd: pxa3xx-nand: use mmp_pdma_filter_fn and dma_request_slave_channel_compat Date: Wed, 7 Aug 2013 17:33:51 +0200 Message-Id: <1375889649-14638-3-git-send-email-zonque@gmail.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1375889649-14638-1-git-send-email-zonque@gmail.com> References: <1375889649-14638-1-git-send-email-zonque@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130807_113450_621040_D2A8B2BC X-CRM114-Status: GOOD ( 11.22 ) X-Spam-Score: 1.5 (+) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (1.5 points) pts rule name description ---- ---------------------- -------------------------------------------------- 1.7 KHOP_BIG_TO_CC Sent to 10+ recipients instaed of Bcc or a list 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (zonque[at]gmail.com) 0.0 DKIM_ADSP_CUSTOM_MED No valid author signature, adsp_override is CUSTOM_MED 0.8 SPF_NEUTRAL SPF: sender does not match SPF record (neutral) -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 0.9 NML_ADSP_CUSTOM_MED ADSP custom_med hit, and not from a mailing list Cc: mark.rutland@arm.com, s.neumann@raumfeld.com, linux-mtd@lists.infradead.org, Daniel Mack , cxie4@marvell.com, lars@metafoo.de, nico@linaro.org, vinod.koul@intel.com, marek.vasut@gmail.com, ezequiel.garcia@free-electrons.com, rmk+kernel@arm.linux.org.uk, devicetree@vger.kernel.org, samuel@sortiz.org, arnd@arndb.de, broonie@kernel.org, mika.westerberg@linux.intel.com, thomas.petazzoni@free-electrons.com, gregkh@linuxfoundation.org, g.liakhovetski@gmx.de, sachin.kamat@linaro.org, kernel@pengutronix.de, djbw@fb.com, davem@davemloft.net X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Signed-off-by: Daniel Mack --- drivers/mtd/nand/pxa3xx_nand.c | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 736673a..99f56c3 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -25,6 +25,7 @@ #include #include #include +#include #include @@ -396,6 +397,7 @@ static void start_data_dma(struct pxa3xx_nand_info *info) int dma_len = ALIGN(info->data_size + info->oob_size, 32); struct dma_slave_config conf; + memset(&conf, 0, sizeof(conf)); dma_dev = info->data_dma_ch->device; switch (info->state) { @@ -419,7 +421,6 @@ static void start_data_dma(struct pxa3xx_nand_info *info) BUG(); } - conf.slave_id = info->drcmr_dat; dmaengine_slave_config(info->data_dma_ch, &conf); tx = dma_dev->device_prep_dma_memcpy(info->data_dma_ch, dma_dst_addr, dma_src_addr, dma_len, 0); @@ -940,7 +941,10 @@ static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info) dma_cap_zero(mask); dma_cap_set(DMA_MEMCPY, mask); - info->data_dma_ch = dma_request_channel(mask, NULL, NULL); + info->data_dma_ch = + dma_request_slave_channel_compat(mask, mmp_pdma_filter_fn, + &info->drcmr_dat, + &pdev->dev, "data"); if (!info->data_dma_ch) { dev_info(&pdev->dev, "Failed to request DMA channel\n"); goto dma_request_fail; @@ -1143,16 +1147,7 @@ static int alloc_nand_resource(struct platform_device *pdev) return ret; if (use_dma) { - /* - * This is a dirty hack to make this driver work from - * devicetree bindings. It can be removed once we have - * a prober DMA controller framework for DT. - */ - if (pdev->dev.of_node && - of_machine_is_compatible("marvell,pxa3xx")) { - info->drcmr_dat = 97; - info->drcmr_cmd = 99; - } else { + if (!pdev->dev.of_node) { r = platform_get_resource(pdev, IORESOURCE_DMA, 0); if (r == NULL) { dev_err(&pdev->dev,