The original intent in cacheinfo was that an architecture
specific populate_cache_leaves() would probe the hardware
and then cache_shared_cpu_map_setup() and
cache_override_properties() would provide firmware help to
extend/expand upon what was probed. Arm64 was really
the only architecture that was working this way, and
with the removal of most of the hardware probing logic it
became clear that it was possible to simplify the logic a bit.

This patch combines the walk of the DT nodes with the
code updating the cache size/line_size and nr_sets.
cache_override_properties() (which was DT specific) is
then removed. The result is that cacheinfo.of_node is
no longer used as a temporary place to hold DT references
for future calls that update cache properties. That change
helps to clarify its one remaining use (matching
cacheinfo nodes that represent shared caches) which
will be used by the ACPI/PPTT code in the following patches.

Cc: Palmer Dabbelt <redacted>
Cc: Albert Ou <redacted>
Signed-off-by: Jeremy Linton <redacted>
---
 arch/riscv/kernel/cacheinfo.c |  1 +
 drivers/base/cacheinfo.c      | 65 +++++++++++++++++++------------------------
 include/linux/cacheinfo.h     |  1 +
 3 files changed, 31 insertions(+), 36 deletions(-)

diff --git a/arch/riscv/kernel/cacheinfo.c b/arch/riscv/kernel/cacheinfo.c
index 10ed2749e246..6f4500233cf8 100644
--- a/arch/riscv/kernel/cacheinfo.c
+++ b/arch/riscv/kernel/cacheinfo.c

@@ -30,6 +30,7 @@ static void ci_leaf_init(struct cacheinfo *this_leaf,
 		CACHE_WRITE_BACK
 		| CACHE_READ_ALLOCATE
 		| CACHE_WRITE_ALLOCATE;
+	cache_of_set_props(this_leaf, node);

diff --git a/include/linux/cacheinfo.h b/include/linux/cacheinfo.h
index 3d9805297cda..d35299a590a4 100644
--- a/include/linux/cacheinfo.h
+++ b/include/linux/cacheinfo.h

@@ -99,6 +99,7 @@ int func(unsigned int cpu)					\
 struct cpu_cacheinfo *get_cpu_cacheinfo(unsigned int cpu);
 int init_cache_level(unsigned int cpu);
 int populate_cache_leaves(unsigned int cpu);
+void cache_of_set_props(struct cacheinfo *this_leaf, struct device_node *np);