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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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75b57ecf9d
Device tree nodes are already treated as objects, and we already want to
expose them to userspace which is done using the /proc filesystem today.
Right now the kernel has to do a lot of work to keep the /proc view in
sync with the in-kernel representation. If device_nodes are switched to
be kobjects then the device tree code can be a whole lot simpler. It
also turns out that switching to using /sysfs from /proc results in
smaller code and data size, and the userspace ABI won't change if
/proc/device-tree symlinks to /sys/firmware/devicetree/base.
v7: Add missing sysfs_bin_attr_init()
v6: Add __of_add_property() early init fixes from Pantelis
v5: Rename firmware/ofw to firmware/devicetree
Fix updating property values in sysfs
v4: Fixed build error on Powerpc
Fixed handling of dynamic nodes on powerpc
v3: Fixed handling of duplicate attribute and child node names
v2: switch to using sysfs bin_attributes which solve the problem of
reporting incorrect property size.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
43 lines
793 B
Plaintext
43 lines
793 B
Plaintext
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/ {
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testcase-data {
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security-password = "password";
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duplicate-name = "duplicate";
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duplicate-name { };
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phandle-tests {
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provider0: provider0 {
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#phandle-cells = <0>;
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};
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provider1: provider1 {
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#phandle-cells = <1>;
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};
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provider2: provider2 {
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#phandle-cells = <2>;
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};
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provider3: provider3 {
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#phandle-cells = <3>;
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};
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consumer-a {
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phandle-list = <&provider1 1>,
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<&provider2 2 0>,
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<0>,
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<&provider3 4 4 3>,
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<&provider2 5 100>,
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<&provider0>,
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<&provider1 7>;
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phandle-list-names = "first", "second", "third";
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phandle-list-bad-phandle = <12345678 0 0>;
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phandle-list-bad-args = <&provider2 1 0>,
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<&provider3 0>;
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empty-property;
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unterminated-string = [40 41 42 43];
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};
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};
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};
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};
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