vfio: platform: determine reset capability
Creating a new function to determine if this driver supports reset function or not. This is an attempt to abstract device tree calls from the rest of the code. Signed-off-by: Sinan Kaya <okaya@codeaurora.org> Reviewed-by: Eric Auger <eric.auger@linaro.org> Reviewed-by: Baptiste Reynal <b.reynal@virtualopensystems.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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@ -49,6 +49,11 @@ static vfio_platform_reset_fn_t vfio_platform_lookup_reset(const char *compat,
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return reset_fn;
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}
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static bool vfio_platform_has_reset(struct vfio_platform_device *vdev)
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{
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return vdev->of_reset ? true : false;
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}
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static void vfio_platform_get_reset(struct vfio_platform_device *vdev)
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{
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vdev->of_reset = vfio_platform_lookup_reset(vdev->compat,
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@ -214,7 +219,7 @@ static long vfio_platform_ioctl(void *device_data,
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if (info.argsz < minsz)
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return -EINVAL;
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if (vdev->of_reset)
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if (vfio_platform_has_reset(vdev))
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vdev->flags |= VFIO_DEVICE_FLAGS_RESET;
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info.flags = vdev->flags;
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info.num_regions = vdev->num_regions;
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