diff options
Diffstat (limited to 'target/linux/layerscape/patches-4.4/3032-arm64-Add-pdev_archdata-for-dmamask.patch')
-rw-r--r-- | target/linux/layerscape/patches-4.4/3032-arm64-Add-pdev_archdata-for-dmamask.patch | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/target/linux/layerscape/patches-4.4/3032-arm64-Add-pdev_archdata-for-dmamask.patch b/target/linux/layerscape/patches-4.4/3032-arm64-Add-pdev_archdata-for-dmamask.patch deleted file mode 100644 index 5246872..0000000 --- a/target/linux/layerscape/patches-4.4/3032-arm64-Add-pdev_archdata-for-dmamask.patch +++ /dev/null @@ -1,51 +0,0 @@ -From f7e48669bb75f3b52e9f3ce1a5d885c49b7c4712 Mon Sep 17 00:00:00 2001 -From: Cristian Sovaiala <cristian.sovaiala@freescale.com> -Date: Thu, 4 Jun 2015 18:27:20 +0300 -Subject: [PATCH 32/70] arm64: Add pdev_archdata for dmamask - -The dma_mask for a device structure is a pointer. This pointer -needs to be set up before the dma mask can actually be set. Most -frameworks in the kernel take care of setting this up properly but -platform devices that don't follow a regular bus structure may not -ever have this set. As a result, checks such as dma_capable will -always return false on a raw platform device and dma_set_mask will -always return -EIO. Fix this by adding a dma_mask in the -platform_device archdata and setting it to be the dma_mask. Devices -used in other frameworks can change this as needed. - -Signed-off-by: Laura Abbott <lauraa@codeaurora.org> ---- - arch/arm64/include/asm/device.h | 1 + - arch/arm64/kernel/setup.c | 7 +++++++ - 2 files changed, 8 insertions(+) - ---- a/arch/arm64/include/asm/device.h -+++ b/arch/arm64/include/asm/device.h -@@ -25,6 +25,7 @@ struct dev_archdata { - }; - - struct pdev_archdata { -+ u64 dma_mask; - }; - - #endif ---- a/arch/arm64/kernel/setup.c -+++ b/arch/arm64/kernel/setup.c -@@ -44,6 +44,7 @@ - #include <linux/of_platform.h> - #include <linux/efi.h> - #include <linux/psci.h> -+#include <linux/dma-mapping.h> - - #include <asm/acpi.h> - #include <asm/fixmap.h> -@@ -381,3 +382,9 @@ static int __init topology_init(void) - return 0; - } - subsys_initcall(topology_init); -+ -+void arch_setup_pdev_archdata(struct platform_device *pdev) -+{ -+ pdev->archdata.dma_mask = DMA_BIT_MASK(32); -+ pdev->dev.dma_mask = &pdev->archdata.dma_mask; -+} |