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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CA619C433F5 for ; Mon, 15 Nov 2021 09:13:55 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8AEC061BFE for ; Mon, 15 Nov 2021 09:13:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 8AEC061BFE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=SGowWtdaI+84t724hd4mBGqnSKNmMuk5MBUHm101atg=; b=2cxRu6NhlRLR00 xmAk7gv/x3aNffbU157ijjRfTOOTDJTxiTsSv+bRD3VwtvBFrFEOqOD7CaYHSf/3VgEvpZMWATDbA ZBjU8FlbIMO9u/V1t1hpcXz4UFCeLrfDvpz0Rc409sJumRs9qDLZz4QGSGT6YrJz6mMKIhphceFC+ 7ACam3n4FWIQhNxdl7eZIALsIKnuWDqYjYnlOt+VsjxPNP7YetpDUhsqPseE2bXFfuicsZaU1PfPT nv3bzlJICAKjfRcP909NILtyFbe8/oEDxC5afCIK6pYAv48NMVrkUsBQhO7LUuvNZ8K3zz3Sgsk/w Loo5achBs0E/rqfJa0cw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mmY3B-00Erod-0G; Mon, 15 Nov 2021 09:13:17 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mmXm7-00EmUH-2p; Mon, 15 Nov 2021 08:55:40 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id A00EC61BE2; Mon, 15 Nov 2021 08:55:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1636966538; bh=2mwiQpykEAXMR4c+gQ0r0Cque843ND6M/qUoWmqOlf8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pHgGGVZQvgwKAmuviD4hubeWYMREgXxWJfeEBFZjz9j7lBnAjNfaItSixiYQ6tjsd jlNLqSO0tvDtiPP2nku90UBbbEHEImWKTSBEcAumAqCmZQgGOYbpyk8Rb61A5J0ESC 99O3hsO+/+1bwks/a9SZtbcyG0O+O/00i2AbMnY7eG3n//Jaz8vyE/OfHd8obW8zPq 3Ut6okySvy2UdYHuRjo3kbCZGY58jshqcW/NX5g436dbVwon7Kj6IlVof7U6GVjRvg 28QwkGliURHIe9Bf7nzdJhzb6dqoRlNUVZg2hdB7bsOSgpPSdfvbPnSPLYKcfSwNZz a4RwOAKAjsSCg== From: Arnd Bergmann To: Vinod Koul Cc: Arnd Bergmann , Andy Gross , Andy Shevchenko , Baolin Wang , Bjorn Andersson , Chunyan Zhang , Greg Kroah-Hartman , Hyun Kwon , Jaroslav Kysela , Jon Hunter , Lars-Peter Clausen , Laurent Pinchart , Laxman Dewangan , Manivannan Sadhasivam , Mark Brown , Michal Simek , Nicolas Saenz Julienne , Orson Zhai , Robert Jarzmik , Scott Branden , Takashi Iwai , Thierry Reding , alsa-devel@alsa-project.org, bcm-kernel-feedback-list@broadcom.com, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, linux-serial@vger.kernel.org, linux-spi@vger.kernel.org, linux-staging@lists.linux.dev, linux-tegra@vger.kernel.org Subject: [PATCH 08/11] dmaengine: xilinx_dpdma: stop using slave_id field Date: Mon, 15 Nov 2021 09:54:00 +0100 Message-Id: <20211115085403.360194-9-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20211115085403.360194-1-arnd@kernel.org> References: <20211115085403.360194-1-arnd@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211115_005539_225974_D66EE7B4 X-CRM114-Status: GOOD ( 22.90 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org From: Arnd Bergmann The display driver wants to pass a custom flag to the DMA engine driver, which it started doing by using the slave_id field that was traditionally used for a different purpose. As there is no longer a correct use for the slave_id field, it should really be removed, and the remaining users changed over to something different. The new mechanism for passing nonstandard settings is using the .peripheral_config field, so use that to pass a newly defined structure here, making it clear that this will not work in portable drivers. Signed-off-by: Arnd Bergmann --- drivers/dma/xilinx/xilinx_dpdma.c | 12 ++++++++---- drivers/gpu/drm/xlnx/zynqmp_disp.c | 9 +++++++-- include/linux/dma/xilinx_dpdma.h | 11 +++++++++++ 3 files changed, 26 insertions(+), 6 deletions(-) create mode 100644 include/linux/dma/xilinx_dpdma.h diff --git a/drivers/dma/xilinx/xilinx_dpdma.c b/drivers/dma/xilinx/xilinx_dpdma.c index ce5c66e6897d..e2c1ef7a659c 100644 --- a/drivers/dma/xilinx/xilinx_dpdma.c +++ b/drivers/dma/xilinx/xilinx_dpdma.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -1273,6 +1274,7 @@ static int xilinx_dpdma_config(struct dma_chan *dchan, struct dma_slave_config *config) { struct xilinx_dpdma_chan *chan = to_xilinx_chan(dchan); + struct xilinx_dpdma_peripheral_config *pconfig; unsigned long flags; /* @@ -1285,11 +1287,13 @@ static int xilinx_dpdma_config(struct dma_chan *dchan, spin_lock_irqsave(&chan->lock, flags); /* - * Abuse the slave_id to indicate that the channel is part of a video - * group. + * Abuse the peripheral_config to indicate that the channel is part + * of a video group. */ - if (chan->id <= ZYNQMP_DPDMA_VIDEO2) - chan->video_group = config->slave_id != 0; + pconfig = config->peripheral_config; + if (chan->id <= ZYNQMP_DPDMA_VIDEO2 && + config->peripheral_size == sizeof(*pconfig)) + chan->video_group = pconfig->video_group; spin_unlock_irqrestore(&chan->lock, flags); diff --git a/drivers/gpu/drm/xlnx/zynqmp_disp.c b/drivers/gpu/drm/xlnx/zynqmp_disp.c index ff2b308d8651..11c409cbc88e 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_disp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_disp.c @@ -24,6 +24,7 @@ #include #include +#include #include #include #include @@ -1058,14 +1059,18 @@ static void zynqmp_disp_layer_set_format(struct zynqmp_disp_layer *layer, zynqmp_disp_avbuf_set_format(layer->disp, layer, layer->disp_fmt); /* - * Set slave_id for each DMA channel to indicate they're part of a + * Set pconfig for each DMA channel to indicate they're part of a * video group. */ for (i = 0; i < info->num_planes; i++) { struct zynqmp_disp_layer_dma *dma = &layer->dmas[i]; + struct xilinx_dpdma_peripheral_config pconfig = { + .video_group = true, + }; struct dma_slave_config config = { .direction = DMA_MEM_TO_DEV, - .slave_id = 1, + .peripheral_config = &pconfig, + .peripheral_size = sizeof(pconfig), }; dmaengine_slave_config(dma->chan, &config); diff --git a/include/linux/dma/xilinx_dpdma.h b/include/linux/dma/xilinx_dpdma.h new file mode 100644 index 000000000000..83a1377f03f8 --- /dev/null +++ b/include/linux/dma/xilinx_dpdma.h @@ -0,0 +1,11 @@ +// SPDX-License-Identifier: GPL-2.0 +#ifndef __LINUX_DMA_XILINX_DPDMA_H +#define __LINUX_DMA_XILINX_DPDMA_H + +#include + +struct xilinx_dpdma_peripheral_config { + bool video_group; +}; + +#endif /* __LINUX_DMA_XILINX_DPDMA_H */ -- 2.30.2 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/