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| author | Rob Herring <robh@kernel.org> | 2018-08-27 13:46:51 -0500 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2018-09-28 14:25:58 -0500 |
| commit | 6487c15f1cc9340fa010d94eeab72ebb657b21dc (patch) | |
| tree | 4c3eecbd1592fd99693f351ec308b2fd067f4f8c /drivers/of/base.c | |
| parent | f1f207e43b8a49ac2ee3c36a64de1f84651c6079 (diff) | |
| download | lwn-6487c15f1cc9340fa010d94eeab72ebb657b21dc.tar.gz lwn-6487c15f1cc9340fa010d94eeab72ebb657b21dc.zip | |
of: Support matching cpu nodes with no 'reg' property
For some single core ARM systems, the DTs can have a single cpu node
without a reg property and #address-cells == 0. This case is valid and
should match on cpu #0.
Cc: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/of/base.c')
| -rw-r--r-- | drivers/of/base.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c index 4807db0a35b3..bd51d2113cc0 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -327,6 +327,8 @@ static bool __of_find_n_match_cpu_property(struct device_node *cpun, ac = of_n_addr_cells(cpun); cell = of_get_property(cpun, prop_name, &prop_len); + if (!cell && !ac && arch_match_cpu_phys_id(cpu, 0)) + return true; if (!cell || !ac) return false; prop_len /= sizeof(*cell) * ac; |