From 74f03104ed465ff71b11076ef620e4eaa53dbf74 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 1 Feb 2019 09:47:44 +0100 Subject: [PATCH] MIPS: lantiq: pass struct device to DMA API functions 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 Signed-off-by: Paul Burton Cc: John Crispin Cc: Vinod Koul Cc: Dmitry Tarnyagin Cc: Nicolas Ferre Cc: Sudip Mukherjee Cc: Felipe Balbi 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 --- arch/mips/lantiq/xway/vmmc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/arch/mips/lantiq/xway/vmmc.c +++ b/arch/mips/lantiq/xway/vmmc.c @@ -31,8 +31,8 @@ static int vmmc_probe(struct platform_de 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) {