static int meson_pinctrl_parse_dt(struct meson_pinctrl *pc,
struct device_node *node)
{
struct device_node *np, *gpio_np = NULL;
for_each_child_of_node(node, np) {
if (!of_find_property(np, "gpio-controller", NULL))
continue;
if (gpio_np) {
dev_err(pc->dev, "multiple gpio nodes\n");
return -EINVAL;
}
gpio_np = np;
}
if (!gpio_np) {
dev_err(pc->dev, "no gpio node found\n");
return -EINVAL;
}
pc->of_node = gpio_np;
pc->reg_mux = meson_map_resource(pc, gpio_np, "mux");
if (IS_ERR(pc->reg_mux)) {
dev_err(pc->dev, "mux registers not found\n");
return PTR_ERR(pc->reg_mux);
}
pc->reg_pull = meson_map_resource(pc, gpio_np, "pull");
if (IS_ERR(pc->reg_pull)) {
dev_err(pc->dev, "pull registers not found\n");
return PTR_ERR(pc->reg_pull);
}
pc->reg_pullen = meson_map_resource(pc, gpio_np, "pull-enable");
/* Use pull region if pull-enable one is not present */
if (IS_ERR(pc->reg_pullen))
pc->reg_pullen = pc->reg_pull;
pc->reg_gpio = meson_map_resource(pc, gpio_np, "gpio");
if (IS_ERR(pc->reg_gpio)) {
dev_err(pc->dev, "gpio registers not found\n");
return PTR_ERR(pc->reg_gpio);
}
return 0;
}
static int meson_pinctrl_parse_dt(struct amlogic_pmx *pc,
struct device_node *node)
{
struct device_node *np;
struct meson_domain *domain;
int i = 0, num_domains = 0;
for_each_child_of_node(node, np) {
if (!of_find_property(np, "gpio-controller", NULL))
continue;
num_domains++;
}
if (num_domains != pc->soc->num_domains) {
dev_err(pc->dev, "wrong number of subnodes\n");
return -EINVAL;
}
pc->domains = devm_kzalloc(pc->dev, num_domains *
sizeof(struct meson_domain), GFP_KERNEL);
if (!pc->domains)
return -ENOMEM;
for_each_child_of_node(node, np) {
if (!of_find_property(np, "gpio-controller", NULL))
continue;
domain = &pc->domains[i];
domain->data = meson_get_domain_data(pc, np);
if (!domain->data) {
dev_err(pc->dev, "domain data not found for node %s\n",
np->name);
return -ENODEV;
}
domain->of_node = np;
domain->reg_mux = meson_map_resource(pc, np, "mux");
if (IS_ERR(domain->reg_mux)) {
dev_err(pc->dev, "mux registers not found\n");
return PTR_ERR(domain->reg_mux);
}
domain->reg_pull = meson_map_resource(pc, np, "pull");
if (IS_ERR(domain->reg_pull)) {
dev_err(pc->dev, "pull registers not found\n");
return PTR_ERR(domain->reg_pull);
}
domain->reg_pullen = meson_map_resource(pc, np, "pull-enable");
/* Use pull region if pull-enable one is not present */
if (IS_ERR(domain->reg_pullen))
domain->reg_pullen = domain->reg_pull;
domain->reg_gpio = meson_map_resource(pc, np, "gpio");
if (IS_ERR(domain->reg_gpio)) {
dev_err(pc->dev, "gpio registers not found\n");
return PTR_ERR(domain->reg_gpio);
}
i++;
}
return 0;
}
