diff options
author | Christoph Hellwig <hch@lst.de> | 2017-08-25 18:13:09 +0300 |
---|---|---|
committer | Christoph Hellwig <hch@lst.de> | 2017-09-01 12:59:17 +0300 |
commit | 2436bdcda53ff4abb7897c87fa29ef3de8055344 (patch) | |
tree | aa9204da61d1e888fea12ac09c948f5d77e793c5 /arch | |
parent | b32dbc1e0bf0eaa8bdd725491b361d5fc2f57a85 (diff) | |
download | linux-2436bdcda53ff4abb7897c87fa29ef3de8055344.tar.xz |
dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flags
DMA_MEMORY_IO was never used in the tree, so remove it. That means there is
no need for the DMA_MEMORY_MAP flag either now, so remove it as well and
change dma_declare_coherent_memory to return a normal errno value.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/mach-imx/mach-imx27_visstrim_m10.c | 44 | ||||
-rw-r--r-- | arch/arm/mach-imx/mach-mx31moboard.c | 12 | ||||
-rw-r--r-- | arch/sh/drivers/pci/fixups-dreamcast.c | 3 |
3 files changed, 24 insertions, 35 deletions
diff --git a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c index dd75a4756761..5169dfba9718 100644 --- a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c +++ b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c @@ -245,7 +245,6 @@ static phys_addr_t mx2_camera_base __initdata; static void __init visstrim_analog_camera_init(void) { struct platform_device *pdev; - int dma; gpio_set_value(TVP5150_PWDN, 1); ndelay(1); @@ -258,12 +257,9 @@ static void __init visstrim_analog_camera_init(void) if (IS_ERR(pdev)) return; - dma = dma_declare_coherent_memory(&pdev->dev, - mx2_camera_base, mx2_camera_base, - MX2_CAMERA_BUF_SIZE, - DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); - if (!(dma & DMA_MEMORY_MAP)) - return; + dma_declare_coherent_memory(&pdev->dev, mx2_camera_base, + mx2_camera_base, MX2_CAMERA_BUF_SIZE, + DMA_MEMORY_EXCLUSIVE); } static void __init visstrim_reserve(void) @@ -444,16 +440,13 @@ static const struct imx_ssi_platform_data visstrim_m10_ssi_pdata __initconst = { static void __init visstrim_coda_init(void) { struct platform_device *pdev; - int dma; pdev = imx27_add_coda(); - dma = dma_declare_coherent_memory(&pdev->dev, - mx2_camera_base + MX2_CAMERA_BUF_SIZE, - mx2_camera_base + MX2_CAMERA_BUF_SIZE, - MX2_CAMERA_BUF_SIZE, - DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); - if (!(dma & DMA_MEMORY_MAP)) - return; + dma_declare_coherent_memory(&pdev->dev, + mx2_camera_base + MX2_CAMERA_BUF_SIZE, + mx2_camera_base + MX2_CAMERA_BUF_SIZE, + MX2_CAMERA_BUF_SIZE, + DMA_MEMORY_EXCLUSIVE); } /* DMA deinterlace */ @@ -466,24 +459,21 @@ static void __init visstrim_deinterlace_init(void) { int ret = -ENOMEM; struct platform_device *pdev = &visstrim_deinterlace; - int dma; ret = platform_device_register(pdev); - dma = dma_declare_coherent_memory(&pdev->dev, - mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE, - mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE, - MX2_CAMERA_BUF_SIZE, - DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); - if (!(dma & DMA_MEMORY_MAP)) - return; + dma_declare_coherent_memory(&pdev->dev, + mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE, + mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE, + MX2_CAMERA_BUF_SIZE, + DMA_MEMORY_EXCLUSIVE); } /* Emma-PrP for format conversion */ static void __init visstrim_emmaprp_init(void) { struct platform_device *pdev; - int dma; + int ret; pdev = imx27_add_mx2_emmaprp(); if (IS_ERR(pdev)) @@ -493,11 +483,11 @@ static void __init visstrim_emmaprp_init(void) * Use the same memory area as the analog camera since both * devices are, by nature, exclusive. */ - dma = dma_declare_coherent_memory(&pdev->dev, + ret = dma_declare_coherent_memory(&pdev->dev, mx2_camera_base, mx2_camera_base, MX2_CAMERA_BUF_SIZE, - DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); - if (!(dma & DMA_MEMORY_MAP)) + DMA_MEMORY_EXCLUSIVE); + if (ret) pr_err("Failed to declare memory for emmaprp\n"); } diff --git a/arch/arm/mach-imx/mach-mx31moboard.c b/arch/arm/mach-imx/mach-mx31moboard.c index bde9a9af6714..3cd030960c98 100644 --- a/arch/arm/mach-imx/mach-mx31moboard.c +++ b/arch/arm/mach-imx/mach-mx31moboard.c @@ -475,7 +475,7 @@ static phys_addr_t mx3_camera_base __initdata; static int __init mx31moboard_init_cam(void) { - int dma, ret = -ENOMEM; + int dma, ret; struct platform_device *pdev; imx31_add_ipu_core(); @@ -484,11 +484,11 @@ static int __init mx31moboard_init_cam(void) if (IS_ERR(pdev)) return PTR_ERR(pdev); - dma = dma_declare_coherent_memory(&pdev->dev, - mx3_camera_base, mx3_camera_base, - MX3_CAMERA_BUF_SIZE, - DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); - if (!(dma & DMA_MEMORY_MAP)) + ret = dma_declare_coherent_memory(&pdev->dev, + mx3_camera_base, mx3_camera_base, + MX3_CAMERA_BUF_SIZE, + DMA_MEMORY_EXCLUSIVE); + if (ret) goto err; ret = platform_device_add(pdev); diff --git a/arch/sh/drivers/pci/fixups-dreamcast.c b/arch/sh/drivers/pci/fixups-dreamcast.c index 1d1c5a227e50..c931d5872ffe 100644 --- a/arch/sh/drivers/pci/fixups-dreamcast.c +++ b/arch/sh/drivers/pci/fixups-dreamcast.c @@ -63,11 +63,10 @@ static void gapspci_fixup_resources(struct pci_dev *dev) res.end = GAPSPCI_DMA_BASE + GAPSPCI_DMA_SIZE - 1; res.flags = IORESOURCE_MEM; pcibios_resource_to_bus(dev->bus, ®ion, &res); - BUG_ON(!dma_declare_coherent_memory(&dev->dev, + BUG_ON(dma_declare_coherent_memory(&dev->dev, res.start, region.start, resource_size(&res), - DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE)); break; default: |