From: Li Zhong Date: Thu, 28 Nov 2013 09:22:25 +0000 (+0800) Subject: powerpc: Revert c6102609 and replace it with the correct fix for vio dma mask setting X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=10862a0c71bff5c7b88812d6a9a9c0be56bc659a;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git powerpc: Revert c6102609 and replace it with the correct fix for vio dma mask setting This patch reverts my previous "fix", and replace it with the correct fix from Russell. And as Russell pointed out -- dma_set_mask_and_coherent() (and the other dma_set_mask() functions) are really supposed to be used by drivers only. Signed-off-by: Li Zhong Signed-off-by: Benjamin Herrenschmidt --- diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index 826d8bd9e522..904c66128fae 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -1432,7 +1432,8 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node) /* needed to ensure proper operation of coherent allocations * later, in case driver doesn't set it explicitly */ - dma_coerce_mask_and_coherent(&viodev->dev, DMA_BIT_MASK(64)); + viodev->dev.coherent_dma_mask = DMA_BIT_MASK(64); + viodev->dev.dma_mask = &viodev->dev.coherent_dma_mask; } /* register with generic device framework */