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MIPS: lantiq: pass struct device to DMA API functions

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The DMA API generally relies on a struct device to work properly, and
only barely works without one for legacy reasons.  Pass the easily
available struct device from the platform_device to remedy this.

Also use GFP_KERNEL instead of GFP_ATOMIC as the gfp_t for the memory
allocation, as we aren't in interrupt context or under a lock.

Note that this whole function looks somewhat bogus given that we never
even look at the returned dma address, and the CPHYSADDR magic on
a returned noncached mapping looks "interesting".  But I'll leave
that to people more familiar with the code to sort out.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: John Crispin <john@phrozen.org>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: dmaengine@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Cc: linux-fbdev@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Cc: iommu@lists.linux-foundation.org
This commit is contained in:
Christoph Hellwig 2019-02-01 09:47:44 +01:00 committed by Paul Burton
parent 94ee12b507
commit 74f03104ed
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GPG key ID: 3EA79FACB57500DD
1 changed files with 2 additions and 2 deletions
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4
arch/mips/lantiq/xway/vmmc.c
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@ -31,8 +31,8 @@ static int vmmc_probe(struct platform_device *pdev)
dma_addr_t dma;
cp1_base =
(void *) CPHYSADDR(dma_alloc_coherent(NULL, CP1_SIZE,
&dma, GFP_ATOMIC));
(void *) CPHYSADDR(dma_alloc_coherent(&pdev->dev, CP1_SIZE,
&dma, GFP_KERNEL));
gpio_count = of_gpio_count(pdev->dev.of_node);
while (gpio_count > 0) {