| From | Rob Herring <> | Subject | [PATCH 02/21] of: Support matching cpu nodes with no 'reg' property | Date | Wed, 5 Sep 2018 14:37:19 -0500 |
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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> --- drivers/of/base.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/of/base.c b/drivers/of/base.c index 70609d5a2506..6389aeb2f48c 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; -- 2.17.1
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