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From: Baolin Wang <baolin.wang@linaro.org>
To: dan.j.williams@intel.com, vkoul@kernel.org
Cc: thierry.reding@gmail.com, jonathanh@nvidia.com,
	linux-tegra@vger.kernel.org, shawnguo@kernel.org,
	s.hauer@pengutronix.de, kernel@pengutronix.de,
	festevam@gmail.com, linux-imx@nxp.com,
	Zubair.Kakakhel@imgtec.com, wsa+renesas@sang-engineering.com,
	jroedel@suse.de, vincent.guittot@linaro.org,
	baolin.wang@linaro.org, dmaengine@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 7/8] dmaengine: sh: rcar-dmac: Let the core do the device node validation
Date: Tue,  7 May 2019 14:09:44 +0800	[thread overview]
Message-ID: <e5a9e3101218d5216dae62da447e9a80d04a741e.1557206859.git.baolin.wang@linaro.org> (raw)
In-Reply-To: <cover.1557206859.git.baolin.wang@linaro.org>
In-Reply-To: <cover.1557206859.git.baolin.wang@linaro.org>

Let the DMA engine core do the device node validation instead of drivers.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
---
 drivers/dma/sh/rcar-dmac.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 2b4f256..9474d5b 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1632,8 +1632,7 @@ static bool rcar_dmac_chan_filter(struct dma_chan *chan, void *arg)
 	 * Forcing it to call dma_request_channel() and iterate through all
 	 * channels from all controllers is just pointless.
 	 */
-	if (chan->device->device_config != rcar_dmac_device_config ||
-	    dma_spec->np != chan->device->dev->of_node)
+	if (chan->device->device_config != rcar_dmac_device_config)
 		return false;
 
 	return !test_and_set_bit(dma_spec->args[0], dmac->modules);
@@ -1653,7 +1652,8 @@ static struct dma_chan *rcar_dmac_of_xlate(struct of_phandle_args *dma_spec,
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_SLAVE, mask);
 
-	chan = dma_request_channel(mask, rcar_dmac_chan_filter, dma_spec);
+	chan = __dma_request_channel(&mask, rcar_dmac_chan_filter, dma_spec,
+				     ofdma->of_node);
 	if (!chan)
 		return NULL;
 
-- 
1.7.9.5


  parent reply	other threads:[~2019-05-07  6:10 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-07  6:09 [PATCH 0/8] Add matching device node validation in DMA engine core Baolin Wang
2019-05-07  6:09 ` [PATCH 1/8] dmaengine: Add matching device node validation in __dma_request_channel() Baolin Wang
2019-05-07  8:37   ` Peter Ujfalusi
2019-05-20 11:27     ` Baolin Wang
2019-05-07  6:09 ` [PATCH 2/8] soc: tegra: fuse: Change to the correct __dma_request_channel() prototype Baolin Wang
2019-05-08 15:15   ` Dmitry Osipenko
2019-05-09  1:44     ` Baolin Wang
2019-05-07  6:09 ` [PATCH 3/8] dmaengine: imx-sdma: Let the core do the device node validation Baolin Wang
2019-05-07  6:09 ` [PATCH 4/8] dmaengine: dma-jz4780: " Baolin Wang
2019-05-07  6:09 ` [PATCH 5/8] dmaengine: mmp_tdma: " Baolin Wang
2019-05-07  6:09 ` [PATCH 6/8] dmaengine: mxs-dma: " Baolin Wang
2019-05-07  6:09 ` Baolin Wang [this message]
2019-05-07  6:09 ` [PATCH 8/8] dmaengine: sh: usb-dmac: " Baolin Wang

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