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| author | Rob Herring <robh@kernel.org> | 2023-06-09 12:13:46 -0600 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2023-06-20 11:56:27 -0700 |
| commit | 1949c0ebc8d660d35ea968ed609c528076b7d44f (patch) | |
| tree | 2aef705f4b0133c58dce5a831ba0d1c620940013 /drivers/clk/mvebu | |
| parent | 1ab391684c9e195c05834def0d08779500b0b319 (diff) | |
| download | lwn-1949c0ebc8d660d35ea968ed609c528076b7d44f.tar.gz lwn-1949c0ebc8d660d35ea968ed609c528076b7d44f.zip | |
clk: mvebu: Use of_get_cpu_hwid() to read CPU ID
Use of_get_cpu_hwid() rather than the open coded reading of the CPU
nodes "reg" property. The existing code is in fact wrong as the "reg"
address cells size is 2 cells for arm64. The existing code happens to
work because the DTS files are wrong as well.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230327-mvebu-clk-fixes-v2-2-8333729ee45d@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/mvebu')
| -rw-r--r-- | drivers/clk/mvebu/ap-cpu-clk.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/clk/mvebu/ap-cpu-clk.c b/drivers/clk/mvebu/ap-cpu-clk.c index 71bdd7c3ff03..d8a7a4c90d54 100644 --- a/drivers/clk/mvebu/ap-cpu-clk.c +++ b/drivers/clk/mvebu/ap-cpu-clk.c @@ -253,12 +253,12 @@ static int ap_cpu_clock_probe(struct platform_device *pdev) */ nclusters = 1; for_each_of_cpu_node(dn) { - int cpu, err; + u64 cpu; - err = of_property_read_u32(dn, "reg", &cpu); - if (WARN_ON(err)) { + cpu = of_get_cpu_hwid(dn, 0); + if (WARN_ON(cpu == OF_BAD_ADDR)) { of_node_put(dn); - return err; + return -EINVAL; } /* If cpu2 or cpu3 is enabled */ @@ -288,12 +288,12 @@ static int ap_cpu_clock_probe(struct platform_device *pdev) struct clk_init_data init; const char *parent_name; struct clk *parent; - int cpu, err; + u64 cpu; - err = of_property_read_u32(dn, "reg", &cpu); - if (WARN_ON(err)) { + cpu = of_get_cpu_hwid(dn, 0); + if (WARN_ON(cpu == OF_BAD_ADDR)) { of_node_put(dn); - return err; + return -EINVAL; } cluster_index = cpu & APN806_CLUSTER_NUM_MASK; |