device_util: Handle domain device in dev_get_domain
When the input device pointer pointing to a domain device, dev_get_domain returns the input device itself. TEST=Build and boot on intel/archercity CRB Change-Id: I3a278a8f573de95406ee256fba17767def4ad75d Signed-off-by: Shuo Liu <shuo.liu@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/81957 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
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@@ -252,9 +252,9 @@ const struct device *dev_get_domain(const struct device *dev)
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{
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/* Walk up the tree up to the domain */
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while (dev && dev->upstream && !is_root_device(dev)) {
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dev = dev->upstream->dev;
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if (dev->path.type == DEVICE_PATH_DOMAIN)
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return dev;
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dev = dev->upstream->dev;
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}
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return NULL;
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@@ -136,11 +136,7 @@ int iio_pci_domain_socket_from_dev(const struct device *dev)
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const struct device *domain;
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union xeon_domain_path dn;
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if (dev->path.type == DEVICE_PATH_DOMAIN)
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domain = dev;
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else
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domain = dev_get_domain(dev);
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domain = dev_get_domain(dev);
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if (!domain)
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return -1;
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@@ -162,11 +158,7 @@ int iio_pci_domain_stack_from_dev(const struct device *dev)
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const struct device *domain;
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union xeon_domain_path dn;
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if (dev->path.type == DEVICE_PATH_DOMAIN)
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domain = dev;
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else
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domain = dev_get_domain(dev);
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domain = dev_get_domain(dev);
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if (!domain)
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return -1;
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