From patchwork Mon Nov 22 22:21:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12632947 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D30BCC433EF for ; Mon, 22 Nov 2021 22:22:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DCE6F89DFC; Mon, 22 Nov 2021 22:22:40 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6A67689D9B for ; Mon, 22 Nov 2021 22:22:39 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 2D11461004; Mon, 22 Nov 2021 22:22:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637619759; bh=sys9XJFA/dhliBmMopCopzBXwQ5L2mlun1TUrr3vGRA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WR3+Blu3IRW2Yhs5zCvf1L9Bs1DK6UlkyNrvuALltf/Cx2Ld4S+RIwoNQP1ZJa8Me 0k2gQIm+YMLlRt6gZ8S3u+mo/GUMQZG/LQIYg25XUw7m4G5+PnoriFpQxQaiHvkuzg /L+0271pMWb8Zv9xbu0UyZJjSWDGu5B/50b1v8edJiwT8VelW0JiKduUh3tFwMrJyc n0UsZBridxhTdPjzbsUJzBkQhqYc56e264H2Bsv/99bpTXzZpwFGbUEm8LiG14LSoL szfShKk7TCtNrm3icqZwHYOcAQmqiIOUKdmlM+ayHLtOrcSROgx3Zd2luYkcUzlRym p9c+BGRLp1lgw== From: Arnd Bergmann To: Vinod Koul Subject: [PATCH v2 01/11] ASoC: tegra20-spdif: stop setting slave_id Date: Mon, 22 Nov 2021 23:21:53 +0100 Message-Id: <20211122222203.4103644-2-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20211122222203.4103644-1-arnd@kernel.org> References: <20211122222203.4103644-1-arnd@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org, Bjorn Andersson , linux-tegra@vger.kernel.org, Thierry Reding , linux-mtd@lists.infradead.org, Laurent Pinchart , linux-spi@vger.kernel.org, Robert Jarzmik , Chunyan Zhang , linux-staging@lists.linux.dev, Michal Simek , Jon Hunter , Andy Gross , bcm-kernel-feedback-list@broadcom.com, linux-serial@vger.kernel.org, Orson Zhai , Nicolas Saenz Julienne , Arnd Bergmann , Manivannan Sadhasivam , linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, Mark Brown , linux-rpi-kernel@lists.infradead.org, Jaroslav Kysela , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, Scott Branden , Hyun Kwon , Greg Kroah-Hartman , linux-mmc@vger.kernel.org, Takashi Iwai , linux-kernel@vger.kernel.org, Laxman Dewangan , Baolin Wang Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Arnd Bergmann The DMA resource is never set up anywhere, and passing this as slave_id has not been the proper procedure in a long time. As a preparation for removing all slave_id references from the ALSA code, remove this one. According to Dmitry Osipenko, this driver has never been used and the mechanism for configuring DMA would not work as it is implemented, so this part will get rewritten when the driver gets put into use again in the future. Signed-off-by: Arnd Bergmann Reviewed-by: Dmitry Osipenko --- sound/soc/tegra/tegra20_spdif.c | 1 - 1 file changed, 1 deletion(-) diff --git a/sound/soc/tegra/tegra20_spdif.c b/sound/soc/tegra/tegra20_spdif.c index 9fdc82d58db3..1c3385da6f82 100644 --- a/sound/soc/tegra/tegra20_spdif.c +++ b/sound/soc/tegra/tegra20_spdif.c @@ -284,7 +284,6 @@ static int tegra20_spdif_platform_probe(struct platform_device *pdev) spdif->playback_dma_data.addr = mem->start + TEGRA20_SPDIF_DATA_OUT; spdif->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; spdif->playback_dma_data.maxburst = 4; - spdif->playback_dma_data.slave_id = dmareq->start; pm_runtime_enable(&pdev->dev); From patchwork Mon Nov 22 22:21:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12632949 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7B956C433F5 for ; Mon, 22 Nov 2021 22:22:48 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A316E89E1B; Mon, 22 Nov 2021 22:22:47 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 01E2289E1B for ; Mon, 22 Nov 2021 22:22:46 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id A4ED860F51; Mon, 22 Nov 2021 22:22:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637619765; bh=DkH2C/0N1WYbkBTHTcXs+UoiXTHoHZhSHgkMmx0w2Xc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G2Oxdt95V8shdcCR4rf8/SnteVMCqPXu7ONpufFbqQSZlnD5v72OrbusBId0aTBCO pP7ckP/ytX0pvpQkWJncqKZTFopWpfw907t6DuIdqszCUJmEH0P8XVWEEcD9/Gc22x BsbBGBjcTwnJPUC00tjAyAiRRBB7Q+yLxDG1vNK4N+lQXd5vI+hHx06boyzMJ/jE1f 5y/7vYtfL+uUibDbJ2SibZOim3YzH9m1BDyOZhEEUVCJq5dBjszMoc2+aYldAVpLgw ihYtpESUekvfxtkIZRBiMxX1y99UhIOUT9S4tCllpAW1AaavTuWHc9Nz22S82Orn3v 7aynnt3oUMzkw== From: Arnd Bergmann To: Vinod Koul Subject: [PATCH v2 02/11] ASoC: dai_dma: remove slave_id field Date: Mon, 22 Nov 2021 23:21:54 +0100 Message-Id: <20211122222203.4103644-3-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20211122222203.4103644-1-arnd@kernel.org> References: <20211122222203.4103644-1-arnd@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org, Bjorn Andersson , linux-tegra@vger.kernel.org, Thierry Reding , linux-mtd@lists.infradead.org, Laurent Pinchart , linux-spi@vger.kernel.org, Robert Jarzmik , Chunyan Zhang , linux-staging@lists.linux.dev, Michal Simek , Jon Hunter , Andy Gross , bcm-kernel-feedback-list@broadcom.com, linux-serial@vger.kernel.org, Orson Zhai , Nicolas Saenz Julienne , Arnd Bergmann , Manivannan Sadhasivam , linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, Mark Brown , linux-rpi-kernel@lists.infradead.org, Jaroslav Kysela , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, Scott Branden , Hyun Kwon , Greg Kroah-Hartman , linux-mmc@vger.kernel.org, Takashi Iwai , linux-kernel@vger.kernel.org, Laxman Dewangan , Baolin Wang Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Arnd Bergmann This field is no longer set from any driver now, so remove the last references as well. Signed-off-by: Arnd Bergmann --- include/sound/dmaengine_pcm.h | 2 -- sound/core/pcm_dmaengine.c | 5 ++--- 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h index 9144bd547851..7403870c28bd 100644 --- a/include/sound/dmaengine_pcm.h +++ b/include/sound/dmaengine_pcm.h @@ -58,7 +58,6 @@ struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream) * @maxburst: Maximum number of words(note: words, as in units of the * src_addr_width member, not bytes) that can be send to or received from the * DAI in one burst. - * @slave_id: Slave requester id for the DMA channel. * @filter_data: Custom DMA channel filter data, this will usually be used when * requesting the DMA channel. * @chan_name: Custom channel name to use when requesting DMA channel. @@ -72,7 +71,6 @@ struct snd_dmaengine_dai_dma_data { dma_addr_t addr; enum dma_slave_buswidth addr_width; u32 maxburst; - unsigned int slave_id; void *filter_data; const char *chan_name; unsigned int fifo_size; diff --git a/sound/core/pcm_dmaengine.c b/sound/core/pcm_dmaengine.c index af08bb4bf578..6762fb2083e1 100644 --- a/sound/core/pcm_dmaengine.c +++ b/sound/core/pcm_dmaengine.c @@ -91,8 +91,8 @@ EXPORT_SYMBOL_GPL(snd_hwparams_to_dma_slave_config); * @dma_data: DAI DMA data * @slave_config: DMA slave configuration * - * Initializes the {dst,src}_addr, {dst,src}_maxburst, {dst,src}_addr_width and - * slave_id fields of the DMA slave config from the same fields of the DAI DMA + * Initializes the {dst,src}_addr, {dst,src}_maxburst, {dst,src}_addr_width + * fields of the DMA slave config from the same fields of the DAI DMA * data struct. The src and dst fields will be initialized depending on the * direction of the substream. If the substream is a playback stream the dst * fields will be initialized, if it is a capture stream the src fields will be @@ -124,7 +124,6 @@ void snd_dmaengine_pcm_set_config_from_dai_data( slave_config->src_addr_width = dma_data->addr_width; } - slave_config->slave_id = dma_data->slave_id; slave_config->peripheral_config = dma_data->peripheral_config; slave_config->peripheral_size = dma_data->peripheral_size; } From patchwork Mon Nov 22 22:21:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12632951 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A827EC4167B for ; Mon, 22 Nov 2021 22:22:53 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D687389E32; Mon, 22 Nov 2021 22:22:52 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6902F89E32 for ; Mon, 22 Nov 2021 22:22:52 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 26DA261037; Mon, 22 Nov 2021 22:22:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637619772; bh=zgLZXkTyZeT2yxDxiCRe3tFY2/P5W/tmmoA+2l/FQdQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Vu62QhxeOG1cTVOI1XJg/cEM/6feijvDUEtMYFy8XGtjFmu3J1wivNmJYFrS1UcOV D+7e8/dcFQJTEA2AuE8XH0Mo5hqIkvIU7jr7CXg/xJJcBc/3gkswZgRMRHG8yZS0C6 A3RlkUSxzEV8XzxTLRQEg6uwnlfUqY5RyXCBxp+xRMO+dd1lHyAqALGLeMHvmaTpcw I7KwaDzzGuTLRIA8G7Pjt3vR4BnO8qW8/WDSQVat4v/Pe4kmO2BGzBrfFp32eScXMa WlyfUsLnnvlA2nG0tzpq6/XyXcfBH7wJwB0PO2DRQHs2fGLdesV9Gr4tLV3qGoyVAl oM4+hQ4U+pU9g== From: Arnd Bergmann To: Vinod Koul Subject: [PATCH v2 03/11] spi: pic32: stop setting dma_config->slave_id Date: Mon, 22 Nov 2021 23:21:55 +0100 Message-Id: <20211122222203.4103644-4-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20211122222203.4103644-1-arnd@kernel.org> References: <20211122222203.4103644-1-arnd@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org, Bjorn Andersson , linux-tegra@vger.kernel.org, Thierry Reding , linux-mtd@lists.infradead.org, Laurent Pinchart , linux-spi@vger.kernel.org, Robert Jarzmik , Chunyan Zhang , linux-staging@lists.linux.dev, Michal Simek , Jon Hunter , Andy Gross , bcm-kernel-feedback-list@broadcom.com, linux-serial@vger.kernel.org, Orson Zhai , Nicolas Saenz Julienne , Arnd Bergmann , Manivannan Sadhasivam , linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, Mark Brown , linux-rpi-kernel@lists.infradead.org, Jaroslav Kysela , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, Scott Branden , Hyun Kwon , Greg Kroah-Hartman , linux-mmc@vger.kernel.org, Takashi Iwai , linux-kernel@vger.kernel.org, Laxman Dewangan , Baolin Wang Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Arnd Bergmann Setting slave_id makes no sense with DT based probing, and should eventually get removed entirely. Address this driver by no longer setting the field here. I could not find which DMA driver is used on PIC32, if it's in the tree at all, but none of the obvious ones even care about slave_id any more. Acked-by: Mark Brown Signed-off-by: Arnd Bergmann --- drivers/spi/spi-pic32.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/spi/spi-pic32.c b/drivers/spi/spi-pic32.c index 5eb7b61bbb4d..f86433b29260 100644 --- a/drivers/spi/spi-pic32.c +++ b/drivers/spi/spi-pic32.c @@ -370,7 +370,6 @@ static int pic32_spi_dma_config(struct pic32_spi *pic32s, u32 dma_width) cfg.src_addr_width = dma_width; cfg.dst_addr_width = dma_width; /* tx channel */ - cfg.slave_id = pic32s->tx_irq; cfg.direction = DMA_MEM_TO_DEV; ret = dmaengine_slave_config(master->dma_tx, &cfg); if (ret) { @@ -378,7 +377,6 @@ static int pic32_spi_dma_config(struct pic32_spi *pic32s, u32 dma_width) return ret; } /* rx channel */ - cfg.slave_id = pic32s->rx_irq; cfg.direction = DMA_DEV_TO_MEM; ret = dmaengine_slave_config(master->dma_rx, &cfg); if (ret) From patchwork Mon Nov 22 22:21:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12632953 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CEC39C433F5 for ; Mon, 22 Nov 2021 22:23:00 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EAACB898E4; Mon, 22 Nov 2021 22:22:59 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id EA14B89725 for ; Mon, 22 Nov 2021 22:22:58 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 9D33661029; Mon, 22 Nov 2021 22:22:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637619778; bh=Yzq/0WIrWxlcPBkc//6CSmo6ndVdzX0jF+mbfEEAeKQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=O4fJAgmEZKY8qnvEsMyh64ToYPKYac7Tq92CFUIuy86cByfLqviMgOzUBJnUK2n2p c6ZrNUMDS2OSdZpG3581u7gew7KAjNWsQ5GK+0R0k21MpClAQpUb5gSD0Nhgx6Kz5k qSX/PWzKa3wknsa9LZ2eDypHMc1NJ8P3EVC3uwp17hnkSlM9zy+EMNm60akgXkCOBQ pfJfgTNbjJ/FXKo6ZEGH/Yw895la+JX/hFONMFZZbspmPPQ1TlQxb8IaZMUmsOFZJ2 QnvEegj8U0waajgJN5GreC5C84r7akRQMioqbUfQmFj1ra/iizUds+MMq2Lt6eaPp6 fQer4aamWrV3g== From: Arnd Bergmann To: Vinod Koul Subject: [PATCH v2 04/11] mmc: bcm2835: stop setting chan_config->slave_id Date: Mon, 22 Nov 2021 23:21:56 +0100 Message-Id: <20211122222203.4103644-5-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20211122222203.4103644-1-arnd@kernel.org> References: <20211122222203.4103644-1-arnd@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org, Bjorn Andersson , linux-tegra@vger.kernel.org, Thierry Reding , linux-mtd@lists.infradead.org, Laurent Pinchart , linux-spi@vger.kernel.org, Robert Jarzmik , Chunyan Zhang , linux-staging@lists.linux.dev, Michal Simek , Jon Hunter , Andy Gross , bcm-kernel-feedback-list@broadcom.com, linux-serial@vger.kernel.org, Orson Zhai , Nicolas Saenz Julienne , Arnd Bergmann , Manivannan Sadhasivam , linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, Mark Brown , linux-rpi-kernel@lists.infradead.org, Jaroslav Kysela , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, Scott Branden , Hyun Kwon , Greg Kroah-Hartman , linux-mmc@vger.kernel.org, Takashi Iwai , linux-kernel@vger.kernel.org, Laxman Dewangan , Baolin Wang Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Arnd Bergmann The field is not interpreted by the DMA engine driver, as all the data is passed from devicetree instead. Remove the assignment so the field can eventually be deleted. Reviewed-by: Nicolas Saenz Julienne Signed-off-by: Arnd Bergmann Acked-by: Ulf Hansson --- drivers/mmc/host/bcm2835.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c index 8c2361e66277..463b707d9e99 100644 --- a/drivers/mmc/host/bcm2835.c +++ b/drivers/mmc/host/bcm2835.c @@ -1293,14 +1293,12 @@ static int bcm2835_add_host(struct bcm2835_host *host) host->dma_cfg_tx.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; host->dma_cfg_tx.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - host->dma_cfg_tx.slave_id = 13; /* DREQ channel */ host->dma_cfg_tx.direction = DMA_MEM_TO_DEV; host->dma_cfg_tx.src_addr = 0; host->dma_cfg_tx.dst_addr = host->phys_addr + SDDATA; host->dma_cfg_rx.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; host->dma_cfg_rx.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - host->dma_cfg_rx.slave_id = 13; /* DREQ channel */ host->dma_cfg_rx.direction = DMA_DEV_TO_MEM; host->dma_cfg_rx.src_addr = host->phys_addr + SDDATA; host->dma_cfg_rx.dst_addr = 0; From patchwork Mon Nov 22 22:21:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12632955 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 69681C433FE for ; Mon, 22 Nov 2021 22:23:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8881689CF5; Mon, 22 Nov 2021 22:23:06 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 62E5B89CF5 for ; Mon, 22 Nov 2021 22:23:05 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 20BEB61028; Mon, 22 Nov 2021 22:22:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637619785; bh=d7m5O4/1nyBGt5Kh33p+oJ8bVHRAS2FfC8Aq7HlukD8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=n9vM5QRuk8fadP59ElpA3ffYUxfRVicrLxNOTf6e03SjGI2V3nsfn8cy3no76jRy2 RDW8l+sIUSCY6gvdbzO4wQ2AAfKEwEssXaTOKLN8mBgW2oC6rbb8Grgm3zn26NcITl 4hcTr9aLhkFY3SCxz7WQc70Ko9Jp/B6+EVRTt4cSjOhtxz6FOGr83EAYftKEZg7yZT GnYh/33xI6Gx+eRxpaESCR5LoWgmya5WHI/acve3Woxr1X/fjCQRjNzrWaWmJ3p2s3 Ok01FBgGD/IQQP5RVu8NbnuhF5Z+l0bB0OYW66oZ0UUqp0zstTqsn5/tPu0/YQMz8f LRNC3XKm0SL3w== From: Arnd Bergmann To: Vinod Koul Subject: [PATCH v2 05/11] dmaengine: shdma: remove legacy slave_id parsing Date: Mon, 22 Nov 2021 23:21:57 +0100 Message-Id: <20211122222203.4103644-6-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20211122222203.4103644-1-arnd@kernel.org> References: <20211122222203.4103644-1-arnd@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org, Bjorn Andersson , linux-tegra@vger.kernel.org, Thierry Reding , linux-mtd@lists.infradead.org, Laurent Pinchart , linux-spi@vger.kernel.org, Robert Jarzmik , Chunyan Zhang , linux-staging@lists.linux.dev, Michal Simek , Jon Hunter , Andy Gross , bcm-kernel-feedback-list@broadcom.com, linux-serial@vger.kernel.org, Orson Zhai , Nicolas Saenz Julienne , Arnd Bergmann , Manivannan Sadhasivam , linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, Mark Brown , linux-rpi-kernel@lists.infradead.org, Jaroslav Kysela , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, Scott Branden , Hyun Kwon , Greg Kroah-Hartman , linux-mmc@vger.kernel.org, Takashi Iwai , linux-kernel@vger.kernel.org, Laxman Dewangan , Baolin Wang Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Arnd Bergmann The slave device is picked through either devicetree or a filter function, and any remaining out-of-tree drivers would have warned about this usage since 2015. Stop interpreting the field finally so it can be removed from the interface. Reviewed-by: Laurent Pinchart Signed-off-by: Arnd Bergmann --- drivers/dma/sh/shdma-base.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c index 7f72b3f4cd1a..41c6bc650fa3 100644 --- a/drivers/dma/sh/shdma-base.c +++ b/drivers/dma/sh/shdma-base.c @@ -786,14 +786,6 @@ static int shdma_config(struct dma_chan *chan, if (!config) return -EINVAL; - /* - * overriding the slave_id through dma_slave_config is deprecated, - * but possibly some out-of-tree drivers still do it. - */ - if (WARN_ON_ONCE(config->slave_id && - config->slave_id != schan->real_slave_id)) - schan->real_slave_id = config->slave_id; - /* * We could lock this, but you shouldn't be configuring the * channel, while using it... From patchwork Mon Nov 22 22:21:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12632957 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3B6D4C43219 for ; Mon, 22 Nov 2021 22:23:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7313B89E47; Mon, 22 Nov 2021 22:23:13 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id D104389E47 for ; Mon, 22 Nov 2021 22:23:11 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 9540861051; Mon, 22 Nov 2021 22:23:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637619791; bh=mEZeKwAu9cmy86njGDu0eXHIrGjfEnYmGSI37A9u8C4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Mds7UvBahSLSVHiBQ9v2Ytg5G1Sxspx3HwfkVRigOS+lcbEmjTSyArF7E1ugjwBBD 2YqSubbC7b6D0R0dyKzHjgFlTme434/IjPEnvZwi2CG9RIUhvUPIqM1M6Qfe8xBdtS n7Cbk51NQppDYReLPMyQPjV7wY1ln/ndhpewTxxkL/meQAovg2HWZHUjvGmZNShKh4 +lzzUkQ+p/BnGqZl17YTexH1jnjJNGGbt90k/iXE3j4vagAjUI+gZPiuTSca+PmE0+ vis7Va7kgZlXo6RAiCjJUtA+avyjvYe+q5Y2LJSAAPAoO/7sW8Al8MVdglg/v4rbAT AcAek++ntYExw== From: Arnd Bergmann To: Vinod Koul Subject: [PATCH v2 06/11] dmaengine: pxa/mmp: stop referencing config->slave_id Date: Mon, 22 Nov 2021 23:21:58 +0100 Message-Id: <20211122222203.4103644-7-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20211122222203.4103644-1-arnd@kernel.org> References: <20211122222203.4103644-1-arnd@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org, Bjorn Andersson , linux-tegra@vger.kernel.org, Thierry Reding , linux-mtd@lists.infradead.org, Laurent Pinchart , linux-spi@vger.kernel.org, Robert Jarzmik , Chunyan Zhang , linux-staging@lists.linux.dev, Michal Simek , Jon Hunter , Andy Gross , bcm-kernel-feedback-list@broadcom.com, linux-serial@vger.kernel.org, Orson Zhai , Nicolas Saenz Julienne , Arnd Bergmann , Manivannan Sadhasivam , linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, Mark Brown , linux-rpi-kernel@lists.infradead.org, Jaroslav Kysela , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, Scott Branden , Hyun Kwon , Greg Kroah-Hartman , linux-mmc@vger.kernel.org, Takashi Iwai , linux-kernel@vger.kernel.org, Laxman Dewangan , Baolin Wang Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Arnd Bergmann The last driver referencing the slave_id on Marvell PXA and MMP platforms was the SPI driver, but this stopped doing so a long time ago, so the TODO from the earlier patch can no be removed. Fixes: b729bf34535e ("spi/pxa2xx: Don't use slave_id of dma_slave_config") Fixes: 13b3006b8ebd ("dma: mmp_pdma: add filter function") Signed-off-by: Arnd Bergmann --- drivers/dma/mmp_pdma.c | 6 ------ drivers/dma/pxa_dma.c | 7 ------- 2 files changed, 13 deletions(-) diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c index a23563cd118b..5a53d7fcef01 100644 --- a/drivers/dma/mmp_pdma.c +++ b/drivers/dma/mmp_pdma.c @@ -727,12 +727,6 @@ static int mmp_pdma_config_write(struct dma_chan *dchan, chan->dir = direction; chan->dev_addr = addr; - /* FIXME: drivers should be ported over to use the filter - * function. Once that's done, the following two lines can - * be removed. - */ - if (cfg->slave_id) - chan->drcmr = cfg->slave_id; return 0; } diff --git a/drivers/dma/pxa_dma.c b/drivers/dma/pxa_dma.c index 52d04641e361..6078cc81892e 100644 --- a/drivers/dma/pxa_dma.c +++ b/drivers/dma/pxa_dma.c @@ -909,13 +909,6 @@ static void pxad_get_config(struct pxad_chan *chan, *dcmd |= PXA_DCMD_BURST16; else if (maxburst == 32) *dcmd |= PXA_DCMD_BURST32; - - /* FIXME: drivers should be ported over to use the filter - * function. Once that's done, the following two lines can - * be removed. - */ - if (chan->cfg.slave_id) - chan->drcmr = chan->cfg.slave_id; } static struct dma_async_tx_descriptor * From patchwork Mon Nov 22 22:21:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12632959 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 12EB1C433FE for ; Mon, 22 Nov 2021 22:23:20 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3ED4889D9B; Mon, 22 Nov 2021 22:23:19 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 51AEF89E5A for ; Mon, 22 Nov 2021 22:23:18 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 1651060FE6; Mon, 22 Nov 2021 22:23:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637619798; bh=McpWp/4AcEZeBd39ynQN6eTYVALGVNvs8cD8tBGVm+Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rpP6eKOrl9dj0+CGG0X5A92xrHnDtIWKLHyPyGZsCeDj6+Y3LlX4ce9t+tYu5Utwc GAD/Dm5Ge6oMPjFnQSe7UC4zsOfp19LJfRk9htLP7pl58RZUdw4odqBlhALUfyEkPP qLyhySmSJtoWdnOXs2KUJIGAxo1Y++knYawaZrSKgfizR+WGB/R0Co73Hc2RCgB+E0 SnKiJkIj+uf0eSIppmJ/1Qu+fX8RKmW186XR2XxbrB1rlTFDwIKlQBRQYQBOkHt4mL PvQ4jmOgipvUVh2E0J+xZnDuaSHyDWJVEg2FeTDb2h+g2D3rOu3i4dwNJrZUZKWxqT E58/3dIDp/niw== From: Arnd Bergmann To: Vinod Koul Subject: [PATCH v2 07/11] dmaengine: sprd: stop referencing config->slave_id Date: Mon, 22 Nov 2021 23:21:59 +0100 Message-Id: <20211122222203.4103644-8-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20211122222203.4103644-1-arnd@kernel.org> References: <20211122222203.4103644-1-arnd@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org, Bjorn Andersson , linux-tegra@vger.kernel.org, Thierry Reding , linux-mtd@lists.infradead.org, Laurent Pinchart , linux-spi@vger.kernel.org, Robert Jarzmik , Chunyan Zhang , linux-staging@lists.linux.dev, Michal Simek , Jon Hunter , Andy Gross , bcm-kernel-feedback-list@broadcom.com, linux-serial@vger.kernel.org, Orson Zhai , Nicolas Saenz Julienne , Arnd Bergmann , Manivannan Sadhasivam , linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, Mark Brown , linux-rpi-kernel@lists.infradead.org, Jaroslav Kysela , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, Scott Branden , Hyun Kwon , Greg Kroah-Hartman , linux-mmc@vger.kernel.org, Takashi Iwai , linux-kernel@vger.kernel.org, Laxman Dewangan , Baolin Wang Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Arnd Bergmann It appears that the code that reads the slave_id from the channel config was copied incorrectly from other drivers. Nothing ever sets this field on platforms that use this driver, so remove the reference. Reviewed-by: Baolin Wang Signed-off-by: Arnd Bergmann --- drivers/dma/sprd-dma.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c index 4357d2395e6b..7f158ef5672d 100644 --- a/drivers/dma/sprd-dma.c +++ b/drivers/dma/sprd-dma.c @@ -795,9 +795,6 @@ static int sprd_dma_fill_desc(struct dma_chan *chan, return dst_datawidth; } - if (slave_cfg->slave_id) - schan->dev_id = slave_cfg->slave_id; - hw->cfg = SPRD_DMA_DONOT_WAIT_BDONE << SPRD_DMA_WAIT_BDONE_OFFSET; /* From patchwork Mon Nov 22 22:22:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12632961 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 95386C433F5 for ; Mon, 22 Nov 2021 22:23:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D144489E06; Mon, 22 Nov 2021 22:23:25 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id C6AD389E7B for ; Mon, 22 Nov 2021 22:23:24 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 8A23E61004; Mon, 22 Nov 2021 22:23:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637619804; bh=/2trEm7P51vShJVT4L//ULHB8/frZ2/a9IRms2t1oZ4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eUYcqMYkNe1Xum01V2uvB3psRVm+wYEqzl9iXZGURcKBMZGJuDEU21EVwlQZCzwci ky1fboovXxBlCGiHnqjaUZoqPZUu45797ZuVdg9UikqPmWxFk6fvk6c9cUXrxgdxaZ ePxgKiO4gmzrwwFWfFJkDB2LEHTJJJi9C8tBaBL5eYjm3DzACS50jd7rCfXl3gjiYH OieTX7tzg9h3+Ci04y8j8LIbN4p3iqgGwfz8IHw9fKfPob+T7wLvTsmNMshhucX68k yCXQDVvNtYtWd1gm2q84wMedxvMIeGPVitC0S4INVJqIYP6CN2ZRRj8m8kCIafC+ac 25oKKEdgM72zg== From: Arnd Bergmann To: Vinod Koul Subject: [PATCH v2 08/11] dmaengine: qcom-adm: stop abusing slave_id config Date: Mon, 22 Nov 2021 23:22:00 +0100 Message-Id: <20211122222203.4103644-9-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20211122222203.4103644-1-arnd@kernel.org> References: <20211122222203.4103644-1-arnd@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org, Bjorn Andersson , linux-tegra@vger.kernel.org, Thierry Reding , linux-mtd@lists.infradead.org, Laurent Pinchart , linux-spi@vger.kernel.org, Robert Jarzmik , Chunyan Zhang , linux-staging@lists.linux.dev, Michal Simek , Jon Hunter , Andy Gross , bcm-kernel-feedback-list@broadcom.com, linux-serial@vger.kernel.org, Orson Zhai , Nicolas Saenz Julienne , Arnd Bergmann , Manivannan Sadhasivam , linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, Mark Brown , linux-rpi-kernel@lists.infradead.org, Jaroslav Kysela , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, Scott Branden , Hyun Kwon , Greg Kroah-Hartman , linux-mmc@vger.kernel.org, Takashi Iwai , linux-kernel@vger.kernel.org, Laxman Dewangan , Baolin Wang Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Arnd Bergmann The slave_id was previously used to pick one DMA slave instead of another, but this is now done through the DMA descriptors in device tree. For the qcom_adm driver, the configuration is documented in the DT binding to contain a tuple of device identifier and a "crci" field, but the implementation ends up using only a single cell for identifying the slave, with the crci getting passed in nonstandard properties of the device, and passed through the dma driver using the old slave_id field. Part of the problem apparently is that the nand driver ends up using only a single DMA request ID, but requires distinct values for "crci" depending on the type of transfer. Change both the dmaengine driver and the two slave drivers to allow the documented binding to work in addition to the ad-hoc passing of crci values. In order to no longer abuse the slave_id field, pass the data using the "peripheral_config" mechanism instead. Signed-off-by: Arnd Bergmann --- drivers/dma/qcom/qcom_adm.c | 56 +++++++++++++++++++++++++++---- drivers/mtd/nand/raw/qcom_nandc.c | 14 ++++++-- drivers/tty/serial/msm_serial.c | 15 +++++++-- include/linux/dma/qcom_adm.h | 12 +++++++ 4 files changed, 86 insertions(+), 11 deletions(-) create mode 100644 include/linux/dma/qcom_adm.h diff --git a/drivers/dma/qcom/qcom_adm.c b/drivers/dma/qcom/qcom_adm.c index ee78bed8d60d..bb338b303af6 100644 --- a/drivers/dma/qcom/qcom_adm.c +++ b/drivers/dma/qcom/qcom_adm.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include #include @@ -140,6 +141,8 @@ struct adm_chan { struct adm_async_desc *curr_txd; struct dma_slave_config slave; + u32 crci; + u32 mux; struct list_head node; int error; @@ -379,8 +382,8 @@ static struct dma_async_tx_descriptor *adm_prep_slave_sg(struct dma_chan *chan, return ERR_PTR(-EINVAL); } - crci = achan->slave.slave_id & 0xf; - if (!crci || achan->slave.slave_id > 0x1f) { + crci = achan->crci & 0xf; + if (!crci || achan->crci > 0x1f) { dev_err(adev->dev, "invalid crci value\n"); return ERR_PTR(-EINVAL); } @@ -403,9 +406,7 @@ static struct dma_async_tx_descriptor *adm_prep_slave_sg(struct dma_chan *chan, if (!async_desc) return ERR_PTR(-ENOMEM); - if (crci) - async_desc->mux = achan->slave.slave_id & ADM_CRCI_MUX_SEL ? - ADM_CRCI_CTL_MUX_SEL : 0; + async_desc->mux = achan->mux ? ADM_CRCI_CTL_MUX_SEL : 0; async_desc->crci = crci; async_desc->blk_size = blk_size; async_desc->dma_len = single_count * sizeof(struct adm_desc_hw_single) + @@ -488,10 +489,13 @@ static int adm_terminate_all(struct dma_chan *chan) static int adm_slave_config(struct dma_chan *chan, struct dma_slave_config *cfg) { struct adm_chan *achan = to_adm_chan(chan); + struct qcom_adm_peripheral_config *config = cfg->peripheral_config; unsigned long flag; spin_lock_irqsave(&achan->vc.lock, flag); memcpy(&achan->slave, cfg, sizeof(struct dma_slave_config)); + if (cfg->peripheral_size == sizeof(config)) + achan->crci = config->crci; spin_unlock_irqrestore(&achan->vc.lock, flag); return 0; @@ -694,6 +698,45 @@ static void adm_channel_init(struct adm_device *adev, struct adm_chan *achan, achan->vc.desc_free = adm_dma_free_desc; } +/** + * adm_dma_xlate + * @dma_spec: pointer to DMA specifier as found in the device tree + * @ofdma: pointer to DMA controller data + * + * This can use either 1-cell or 2-cell formats, the first cell + * identifies the slave device, while the optional second cell + * contains the crci value. + * + * Returns pointer to appropriate dma channel on success or NULL on error. + */ +struct dma_chan *adm_dma_xlate(struct of_phandle_args *dma_spec, + struct of_dma *ofdma) +{ + struct dma_device *dev = ofdma->of_dma_data; + struct dma_chan *chan, *candidate = NULL; + struct adm_chan *achan; + + if (!dev || dma_spec->args_count > 2) + return NULL; + + list_for_each_entry(chan, &dev->channels, device_node) + if (chan->chan_id == dma_spec->args[0]) { + candidate = chan; + break; + } + + if (!candidate) + return NULL; + + achan = to_adm_chan(candidate); + if (dma_spec->args_count == 2) + achan->crci = dma_spec->args[1]; + else + achan->crci = 0; + + return dma_get_slave_channel(candidate); +} + static int adm_dma_probe(struct platform_device *pdev) { struct adm_device *adev; @@ -838,8 +881,7 @@ static int adm_dma_probe(struct platform_device *pdev) goto err_disable_clks; } - ret = of_dma_controller_register(pdev->dev.of_node, - of_dma_xlate_by_chan_id, + ret = of_dma_controller_register(pdev->dev.of_node, adm_dma_xlate, &adev->common); if (ret) goto err_unregister_dma; diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c index 04e6f7b26706..7c6efa3b6255 100644 --- a/drivers/mtd/nand/raw/qcom_nandc.c +++ b/drivers/mtd/nand/raw/qcom_nandc.c @@ -6,6 +6,7 @@ #include #include #include +#include #include #include #include @@ -952,6 +953,7 @@ static int prep_adm_dma_desc(struct qcom_nand_controller *nandc, bool read, struct dma_async_tx_descriptor *dma_desc; struct scatterlist *sgl; struct dma_slave_config slave_conf; + struct qcom_adm_peripheral_config periph_conf = {}; enum dma_transfer_direction dir_eng; int ret; @@ -983,11 +985,19 @@ static int prep_adm_dma_desc(struct qcom_nand_controller *nandc, bool read, if (read) { slave_conf.src_maxburst = 16; slave_conf.src_addr = nandc->base_dma + reg_off; - slave_conf.slave_id = nandc->data_crci; + if (nandc->data_crci) { + periph_conf.crci = nandc->data_crci; + slave_conf.peripheral_config = &periph_conf; + slave_conf.peripheral_size = sizeof(periph_conf); + } } else { slave_conf.dst_maxburst = 16; slave_conf.dst_addr = nandc->base_dma + reg_off; - slave_conf.slave_id = nandc->cmd_crci; + if (nandc->cmd_crci) { + periph_conf.crci = nandc->cmd_crci; + slave_conf.peripheral_config = &periph_conf; + slave_conf.peripheral_size = sizeof(periph_conf); + } } ret = dmaengine_slave_config(nandc->chan, &slave_conf); diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c index fcef7a961430..c6be09f44dc1 100644 --- a/drivers/tty/serial/msm_serial.c +++ b/drivers/tty/serial/msm_serial.c @@ -9,6 +9,7 @@ #include #include +#include #include #include #include @@ -290,6 +291,7 @@ static void msm_request_tx_dma(struct msm_port *msm_port, resource_size_t base) { struct device *dev = msm_port->uart.dev; struct dma_slave_config conf; + struct qcom_adm_peripheral_config periph_conf = {}; struct msm_dma *dma; u32 crci = 0; int ret; @@ -308,7 +310,11 @@ static void msm_request_tx_dma(struct msm_port *msm_port, resource_size_t base) conf.device_fc = true; conf.dst_addr = base + UARTDM_TF; conf.dst_maxburst = UARTDM_BURST_SIZE; - conf.slave_id = crci; + if (crci) { + conf.peripheral_config = &periph_conf; + conf.peripheral_size = sizeof(periph_conf); + periph_conf.crci = crci; + } ret = dmaengine_slave_config(dma->chan, &conf); if (ret) @@ -333,6 +339,7 @@ static void msm_request_rx_dma(struct msm_port *msm_port, resource_size_t base) { struct device *dev = msm_port->uart.dev; struct dma_slave_config conf; + struct qcom_adm_peripheral_config periph_conf = {}; struct msm_dma *dma; u32 crci = 0; int ret; @@ -355,7 +362,11 @@ static void msm_request_rx_dma(struct msm_port *msm_port, resource_size_t base) conf.device_fc = true; conf.src_addr = base + UARTDM_RF; conf.src_maxburst = UARTDM_BURST_SIZE; - conf.slave_id = crci; + if (crci) { + conf.peripheral_config = &periph_conf; + conf.peripheral_size = sizeof(periph_conf); + periph_conf.crci = crci; + } ret = dmaengine_slave_config(dma->chan, &conf); if (ret) diff --git a/include/linux/dma/qcom_adm.h b/include/linux/dma/qcom_adm.h new file mode 100644 index 000000000000..af20df674f0c --- /dev/null +++ b/include/linux/dma/qcom_adm.h @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0-only +#ifndef __LINUX_DMA_QCOM_ADM_H +#define __LINUX_DMA_QCOM_ADM_H + +#include + +struct qcom_adm_peripheral_config { + u32 crci; + u32 mux; +}; + +#endif /* __LINUX_DMA_QCOM_ADM_H */ From patchwork Mon Nov 22 22:22:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12632963 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9D1BFC433F5 for ; Mon, 22 Nov 2021 22:23:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BA7BC89E2B; Mon, 22 Nov 2021 22:23:31 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4885189E2B for ; Mon, 22 Nov 2021 22:23:31 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 0E0A061053; Mon, 22 Nov 2021 22:23:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637619811; bh=DMxz9rkJwWZ5AqTdDggA8BLDb3DTgP5Oz0VUo2zj6B4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=D2LWKDbatUWolgPnSkaWF6uAmXJr7TRUsffIAYil8ieu9gP8qTxDGTlSSeFslk+FX lfasUT+qjAZz4FqvxeQbdvqY7gm+Szg9KN11yNlzJ9GOQaUe2v85AHYKYosrXAMyrE 83Qo7Vahw/aCxC+KQwYxEhvp5nYKM2xiNPHzZz3mpotZj10zImrNUftev0qcZA03Zn NQLipAZpiDTgThm7UHwH21MkyStuMHBgZkt8Z6fmCqVtjxInuWYT3q2YF1Ajj0kiB1 UMwMelZbEWO8BXX6fob9irbYUtNypouPZRN0P8c65LiXoihCRpce5QwQAS3j6Vkxsv uUuI47S8VCEng== From: Arnd Bergmann To: Vinod Koul Subject: [PATCH v2 09/11] dmaengine: xilinx_dpdma: stop using slave_id field Date: Mon, 22 Nov 2021 23:22:01 +0100 Message-Id: <20211122222203.4103644-10-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20211122222203.4103644-1-arnd@kernel.org> References: <20211122222203.4103644-1-arnd@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org, Bjorn Andersson , linux-tegra@vger.kernel.org, Thierry Reding , linux-mtd@lists.infradead.org, Laurent Pinchart , linux-spi@vger.kernel.org, Robert Jarzmik , Chunyan Zhang , linux-staging@lists.linux.dev, Michal Simek , Jon Hunter , Andy Gross , bcm-kernel-feedback-list@broadcom.com, linux-serial@vger.kernel.org, Orson Zhai , Nicolas Saenz Julienne , Arnd Bergmann , Manivannan Sadhasivam , linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, Mark Brown , linux-rpi-kernel@lists.infradead.org, Jaroslav Kysela , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, Scott Branden , Hyun Kwon , Greg Kroah-Hartman , linux-mmc@vger.kernel.org, Takashi Iwai , linux-kernel@vger.kernel.org, Laxman Dewangan , Baolin Wang Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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. Reviewed-by: Laurent Pinchart Signed-off-by: Arnd Bergmann --- drivers/dma/xilinx/xilinx_dpdma.c | 17 +++++++++++------ drivers/gpu/drm/xlnx/zynqmp_disp.c | 9 +++++++-- include/linux/dma/xilinx_dpdma.h | 11 +++++++++++ 3 files changed, 29 insertions(+), 8 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..b0f4948b00a5 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; /* @@ -1282,15 +1284,18 @@ static int xilinx_dpdma_config(struct dma_chan *dchan, * fixed both on the DPDMA side and on the DP controller side. */ - spin_lock_irqsave(&chan->lock, flags); - /* - * Abuse the slave_id to indicate that the channel is part of a video - * group. + * Use the peripheral_config to indicate that the channel is part + * of a video group. This requires matching use of the custom + * structure in each driver. */ - if (chan->id <= ZYNQMP_DPDMA_VIDEO2) - chan->video_group = config->slave_id != 0; + pconfig = config->peripheral_config; + if (WARN_ON(pconfig && config->peripheral_size != sizeof(*pconfig))) + return -EINVAL; + spin_lock_irqsave(&chan->lock, flags); + if (chan->id <= ZYNQMP_DPDMA_VIDEO2 && pconfig) + chan->video_group = pconfig->video_group; spin_unlock_irqrestore(&chan->lock, flags); return 0; 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 */ From patchwork Mon Nov 22 22:22:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12632965 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 90D8DC433EF for ; Mon, 22 Nov 2021 22:23:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 15A5889EAE; Mon, 22 Nov 2021 22:23:38 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id C25DF89EAE for ; Mon, 22 Nov 2021 22:23:37 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 8354861078; Mon, 22 Nov 2021 22:23:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637619817; bh=efjqB8lclC/CTZtvxidalnRW6k3GNlgXbza8zFiCoZM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=U8NP1Zc1gLJF725LnCrWHgavWOnwK2Ly1UnDTKcbTcdYbgu+miYfDh7Q5MZ9ByoyK GvjVX6mKNAxeCgehUkVbusSV4QnRfJUYbwPUXViEyL36MN8wB2u6OmqubcsatL9+Mq yeV+rIZkvLJeCdnf9o9aNwg+uxPfN+v8kmtNfC7MLTzE2itRKsloRWob2HCygsanXX VTKTLI7mi+52T1tblQaF6Ba0ZDdU3kkLWFXoKX2E3e7ejJJSpfWQ0xjrJeJKfQB24g xd90ghdcOKTXQirzhVKhiK98fux08E5EopBbXH5f2PC+N20hBxkQSuiFisX18MW7Gu qmf6Z6dWyCwbA== From: Arnd Bergmann To: Vinod Koul Subject: [PATCH v2 10/11] dmaengine: tegra20-apb: stop checking config->slave_id Date: Mon, 22 Nov 2021 23:22:02 +0100 Message-Id: <20211122222203.4103644-11-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20211122222203.4103644-1-arnd@kernel.org> References: <20211122222203.4103644-1-arnd@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org, Bjorn Andersson , linux-tegra@vger.kernel.org, Thierry Reding , linux-mtd@lists.infradead.org, Laurent Pinchart , linux-spi@vger.kernel.org, Robert Jarzmik , Chunyan Zhang , linux-staging@lists.linux.dev, Michal Simek , Jon Hunter , Andy Gross , bcm-kernel-feedback-list@broadcom.com, linux-serial@vger.kernel.org, Orson Zhai , Nicolas Saenz Julienne , Arnd Bergmann , Manivannan Sadhasivam , linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, Mark Brown , linux-rpi-kernel@lists.infradead.org, Jaroslav Kysela , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, Scott Branden , Hyun Kwon , Greg Kroah-Hartman , linux-mmc@vger.kernel.org, Takashi Iwai , linux-kernel@vger.kernel.org, Laxman Dewangan , Baolin Wang Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Arnd Bergmann Nothing sets the slave_id field any more, so stop accessing it to allow the removal of this field. Signed-off-by: Arnd Bergmann --- drivers/dma/tegra20-apb-dma.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c index b7260749e8ee..eaafcbe4ca94 100644 --- a/drivers/dma/tegra20-apb-dma.c +++ b/drivers/dma/tegra20-apb-dma.c @@ -343,12 +343,6 @@ static int tegra_dma_slave_config(struct dma_chan *dc, } memcpy(&tdc->dma_sconfig, sconfig, sizeof(*sconfig)); - if (tdc->slave_id == TEGRA_APBDMA_SLAVE_ID_INVALID && - sconfig->device_fc) { - if (sconfig->slave_id > TEGRA_APBDMA_CSR_REQ_SEL_MASK) - return -EINVAL; - tdc->slave_id = sconfig->slave_id; - } tdc->config_init = true; return 0; From patchwork Mon Nov 22 22:22:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12632967 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0EA9CC433F5 for ; Mon, 22 Nov 2021 22:23:46 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 606FF89244; Mon, 22 Nov 2021 22:23:45 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4671A89244 for ; Mon, 22 Nov 2021 22:23:44 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 064F96103C; Mon, 22 Nov 2021 22:23:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637619824; bh=kK/0hn3Tn2Fi1LQ6SeIagL/0lsO2CrpknZyQZAqq6H8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=D2/yNDzBENZCV3sSIl45F//FfTAukYJn/aB/UGh8I2KaOy7hp22Bp+4Hk7x39Hi7u 6e+dm5/YqhRogLXgrZ4AGc43mg64vHlOq1gIn5GVeiq9ATMgMjPD8mxPFDFaQ3aa+j MQv7bncgFO5dExmwoX3s7KxgzNmRdjAvJ8L8yiSvS5qic4CJs5WDTicWXy2EK3Rvgg cAaYtYpjbFTPUW/LIgaSPH1XVukM1CNyFl/il1Z3hpw7wYnUGTRu2xxQu7y1304Q4O DqXPeJwj0DSwecC7x7qSXRZYQTTmspHVwU6Jw3E235yowtMHJ5mtFd1BPBQlG3mqm6 Syi2DD+et8CSw== From: Arnd Bergmann To: Vinod Koul Subject: [PATCH v2 11/11] dmaengine: remove slave_id config field Date: Mon, 22 Nov 2021 23:22:03 +0100 Message-Id: <20211122222203.4103644-12-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20211122222203.4103644-1-arnd@kernel.org> References: <20211122222203.4103644-1-arnd@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org, Bjorn Andersson , linux-tegra@vger.kernel.org, Thierry Reding , linux-mtd@lists.infradead.org, Laurent Pinchart , linux-spi@vger.kernel.org, Robert Jarzmik , Chunyan Zhang , linux-staging@lists.linux.dev, Michal Simek , Jon Hunter , Andy Gross , bcm-kernel-feedback-list@broadcom.com, linux-serial@vger.kernel.org, Orson Zhai , Nicolas Saenz Julienne , Arnd Bergmann , Manivannan Sadhasivam , linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, Mark Brown , linux-rpi-kernel@lists.infradead.org, Jaroslav Kysela , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, Scott Branden , Hyun Kwon , Greg Kroah-Hartman , linux-mmc@vger.kernel.org, Takashi Iwai , linux-kernel@vger.kernel.org, Laxman Dewangan , Baolin Wang Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Arnd Bergmann All references to the slave_id field have been removed, so remove the field as well to prevent new references from creeping in again. Originally this allowed slave DMA drivers to configure which device is accessed with the dmaengine_slave_config() call, but this was inconsistent, as the same information is also passed while requesting a channel, and never changes in practice. In modern kernels, the device is always selected when requesting the channel, so the .slave_id field is no longer useful. Reviewed-by: Laurent Pinchart Signed-off-by: Arnd Bergmann --- include/linux/dmaengine.h | 4 ---- 1 file changed, 4 deletions(-) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 9000f3ffce8b..0349b35235e6 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -418,9 +418,6 @@ enum dma_slave_buswidth { * @device_fc: Flow Controller Settings. Only valid for slave channels. Fill * with 'true' if peripheral should be flow controller. Direction will be * selected at Runtime. - * @slave_id: Slave requester id. Only valid for slave channels. The dma - * slave peripheral will have unique id as dma requester which need to be - * pass as slave config. * @peripheral_config: peripheral configuration for programming peripheral * for dmaengine transfer * @peripheral_size: peripheral configuration buffer size @@ -448,7 +445,6 @@ struct dma_slave_config { u32 src_port_window_size; u32 dst_port_window_size; bool device_fc; - unsigned int slave_id; void *peripheral_config; size_t peripheral_size; };