From: Linus Walleij Date: Fri, 13 Jan 2017 15:02:03 +0000 (+0100) Subject: dmaengine: ste_dma40: indicate directions on channels X-Git-Tag: v5.15~11856^2~2^2~1 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=49873e99b7b5d59eef238199fd55f8345e860824;p=mirror_ubuntu-kernels.git dmaengine: ste_dma40: indicate directions on channels Since the introduction of the .directions flags, ste_dma40 was never patched to indicate which transfer directions it can manage. This causes a problem when trying to use the dmaengine for generic ALSA SoC DMA: ux500-msp-i2s.1: Failed to get DMA channel capabilities, falling back to period counting: -6 This patch fixes this issue by indicating the supported transfer directions for slave and memcpy channels. Signed-off-by: Linus Walleij Signed-off-by: Vinod Koul --- diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 8684d11b29bb..2f0852dfbd1b 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -2809,12 +2809,14 @@ static void __init d40_chan_init(struct d40_base *base, struct dma_device *dma, static void d40_ops_init(struct d40_base *base, struct dma_device *dev) { - if (dma_has_cap(DMA_SLAVE, dev->cap_mask)) + if (dma_has_cap(DMA_SLAVE, dev->cap_mask)) { dev->device_prep_slave_sg = d40_prep_slave_sg; + dev->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); + } if (dma_has_cap(DMA_MEMCPY, dev->cap_mask)) { dev->device_prep_dma_memcpy = d40_prep_memcpy; - + dev->directions = BIT(DMA_MEM_TO_MEM); /* * This controller can only access address at even * 32bit boundaries, i.e. 2^2