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pinctrl: pinconf-generic: Convert ..._parse_dt_pinmux() to fwnode API

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Convert pinconf_generic_parse_dt_pinmux() to fwnode API. This makes code
cleaner and potentially reusable for some other types of fwnodes, such as
software nodes.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
This commit is contained in:
Andy Shevchenko
2026-03-17 11:36:13 +01:00
committed by Linus Walleij
parent 1fc7de3047
commit e238fb21bd
1 changed files with 14 additions and 13 deletions
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27
drivers/pinctrl/pinconf-generic.c
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@@ -312,20 +312,19 @@ int pinconf_generic_parse_dt_pinmux(struct device_node *np, struct device *dev,
unsigned int **pid, unsigned int **pmux,
unsigned int *npins)
{
struct fwnode_handle *fwnode = of_fwnode_handle(np);
unsigned int *pid_t;
unsigned int *pmux_t;
struct property *prop;
unsigned int npins_t, i;
u32 value;
int ret;
prop = of_find_property(np, "pinmux", NULL);
if (!prop) {
ret = fwnode_property_count_u32(fwnode, "pinmux");
if (ret < 0) {
dev_info(dev, "Missing pinmux property\n");
return -ENOENT;
return ret;
}
npins_t = prop->length / sizeof(u32);
npins_t = ret;
if (npins_t == 0) {
dev_info(dev, "pinmux property doesn't have entries\n");
return -ENODATA;
@@ -342,14 +341,16 @@ int pinconf_generic_parse_dt_pinmux(struct device_node *np, struct device *dev,
dev_err(dev, "kalloc memory fail\n");
return -ENOMEM;
}
ret = fwnode_property_read_u32_array(fwnode, "pinmux", pmux_t, npins_t);
if (ret) {
dev_err(dev, "get pinmux value fail\n");
goto exit;
}
for (i = 0; i < npins_t; i++) {
ret = of_property_read_u32_index(np, "pinmux", i, &value);
if (ret) {
dev_err(dev, "get pinmux value fail\n");
goto exit;
}
pmux_t[i] = value & 0xff;
pid_t[i] = (value >> 8) & 0xffffff;
pid_t[i] = pmux_t[i] >> 8;
pmux_t[i] = pmux_t[i] & 0xff;
}
*pid = pid_t;
*pmux = pmux_t;