From 795e92ec5fd79027648bd7f779d34bad5b6f2f55 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Wed, 6 Oct 2021 11:43:21 -0500 Subject: of: Add of_get_cpu_hwid() to read hardware ID from CPU nodes There are various open coded implementions parsing the CPU node 'reg' property which contains the CPU's hardware ID. Introduce a new function, of_get_cpu_hwid(), to read the hardware ID. All the callers should be DT only code, so no need for an empty function. Cc: Frank Rowand Signed-off-by: Rob Herring Tested-by: Florian Fainelli Reviewed-by: Sudeep Holla Link: https://lore.kernel.org/r/20211006164332.1981454-2-robh@kernel.org --- include/linux/of.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/of.h b/include/linux/of.h index 6f1c41f109bb..807f8168dad9 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -353,6 +353,7 @@ extern struct device_node *of_get_cpu_node(int cpu, unsigned int *thread); extern struct device_node *of_get_next_cpu_node(struct device_node *prev); extern struct device_node *of_get_cpu_state_node(struct device_node *cpu_node, int index); +extern u64 of_get_cpu_hwid(struct device_node *cpun, unsigned int thread); #define for_each_property_of_node(dn, pp) \ for (pp = dn->properties; pp != NULL; pp = pp->next) -- cgit v1.2.3-71-gd317