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bus: ti-sysc: Remove open coded "ranges" parsing

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"ranges" is a standard property and we have common helper functions for
parsing it, so let's use them.

Signed-off-by: Rob Herring <robh@kernel.org>
Message-Id: <20230201220002.246907-1-robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Rob Herring 2023-02-01 16:00:02 -06:00 committed by Tony Lindgren
parent fe15c26ee2
commit 41e4f807f8
1 changed files with 9 additions and 32 deletions
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41
drivers/bus/ti-sysc.c
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@ -648,43 +648,20 @@ static int sysc_init_resets(struct sysc *ddata)
static int sysc_parse_and_check_child_range(struct sysc *ddata) static int sysc_parse_and_check_child_range(struct sysc *ddata)
{ {
struct device_node *np = ddata->dev->of_node; struct device_node *np = ddata->dev->of_node;
const __be32 *ranges; struct of_range_parser parser;
u32 nr_addr, nr_size; struct of_range range;
int len, error; int error;
ranges = of_get_property(np, "ranges", &len); error = of_range_parser_init(&parser, np);
if (!ranges) {
dev_err(ddata->dev, "missing ranges for %pOF\n", np);
return -ENOENT;
}
len /= sizeof(*ranges);
if (len < 3) {
dev_err(ddata->dev, "incomplete ranges for %pOF\n", np);
return -EINVAL;
}
error = of_property_read_u32(np, "#address-cells", &nr_addr);
if (error) if (error)
return -ENOENT; return error;
error = of_property_read_u32(np, "#size-cells", &nr_size); for_each_of_range(&parser, &range) {
if (error) ddata->module_pa = range.cpu_addr;
return -ENOENT; ddata->module_size = range.size;
break;
if (nr_addr != 1 || nr_size != 1) {
dev_err(ddata->dev, "invalid ranges for %pOF\n", np);
return -EINVAL;
} }
ranges++;
ddata->module_pa = of_translate_address(np, ranges++);
ddata->module_size = be32_to_cpup(ranges);
return 0; return 0;
} }