[PATCH v2 2/4] iommu/arm-smmu: Invoke DT probe from arm_smmu_of_setup()
From: Anup Patel <hidden>
Date: 2016-02-08 05:25:54
Also in:
linux-arm-kernel, linux-iommu, lkml
Subsystem:
iommu subsystem, the rest · Maintainers:
Joerg Roedel, Will Deacon, Linus Torvalds
The SMMUv1/SMMUv2 driver is initialized very early using the IOMMU_OF_DECLARE() but the actual platform device is probed via normal DT probing. This patch uses of_platform_device_create() from arm_smmu_of_setup() to ensure that SMMU platform device is probed immediately. Signed-off-by: Anup Patel <redacted> --- drivers/iommu/arm-smmu.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 2c8f871..02cd67d 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c@@ -40,6 +40,7 @@ #include <linux/of.h> #include <linux/of_address.h> #include <linux/of_iommu.h> +#include <linux/of_platform.h> #include <linux/pci.h> #include <linux/platform_device.h> #include <linux/slab.h>
@@ -1956,10 +1957,15 @@ static int __init arm_smmu_init(void) static int __init arm_smmu_of_setup(struct device_node *np) { + struct platform_device *pdev; if (!init_done) arm_smmu_init(); + pdev = of_platform_device_create(np, NULL, NULL); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + of_iommu_set_ops(np, &arm_smmu_ops); return 0;
--
1.9.1