fdt: add memory bank decoding functions for board setup

[u-boot] / drivers / pinctrl / pinctrl-uclass.c

diff --git a/drivers/pinctrl/pinctrl-uclass.c b/drivers/pinctrl/pinctrl-uclass.c
index b5fdcd12a8251de2fc6f013a539b5ca41af94712..02ab9b4afde6499ad9deee4b68fcd6b4b7947cd7 100644 (file)
--- a/drivers/pinctrl/pinctrl-uclass.c
+++ b/drivers/pinctrl/pinctrl-uclass.c
@@ -15,6 +15,18 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+int pinctrl_decode_pin_config(const void *blob, int node)
+{
+       int flags = 0;
+
+       if (fdtdec_get_bool(blob, node, "bias-pull-up"))
+               flags |= 1 << PIN_CONFIG_BIAS_PULL_UP;
+       else if (fdtdec_get_bool(blob, node, "bias-pull-down"))
+               flags |= 1 << PIN_CONFIG_BIAS_PULL_DOWN;
+
+       return flags;
+}
+
 #if CONFIG_IS_ENABLED(PINCTRL_FULL)
 /**
  * pinctrl_config_one() - apply pinctrl settings for a single node
@@ -60,7 +72,7 @@ static int pinctrl_select_state_full(struct udevice *dev, const char *statename)
        struct udevice *config;
        int state, size, i, ret;
 
-       state = fdt_find_string(fdt, node, "pinctrl-names", statename);
+       state = fdt_stringlist_search(fdt, node, "pinctrl-names", statename);
        if (state < 0) {
                char *end;
                /*
@@ -101,7 +113,7 @@ static int pinctrl_select_state_full(struct udevice *dev, const char *statename)
 }
 
 /**
- * pinconfig_post-bind() - post binding for PINCONFIG uclass
+ * pinconfig_post_bind() - post binding for PINCONFIG uclass
  * Recursively bind its children as pinconfig devices.
  *
  * @dev: pinconfig device
@@ -111,12 +123,16 @@ static int pinconfig_post_bind(struct udevice *dev)
 {
        const void *fdt = gd->fdt_blob;
        int offset = dev->of_offset;
+       bool pre_reloc_only = !(gd->flags & GD_FLG_RELOC);
        const char *name;
        int ret;
 
        for (offset = fdt_first_subnode(fdt, offset);
             offset > 0;
             offset = fdt_next_subnode(fdt, offset)) {
+               if (pre_reloc_only &&
+                   !fdt_getprop(fdt, offset, "u-boot,dm-pre-reloc", NULL))
+                       continue;
                /*
                 * If this node has "compatible" property, this is not
                 * a pin configuration node, but a normal device. skip.
@@ -230,8 +246,18 @@ int pinctrl_get_periph_id(struct udevice *dev, struct udevice *periph)
        return ops->get_periph_id(dev, periph);
 }
 
+int pinctrl_get_gpio_mux(struct udevice *dev, int banknum, int index)
+{
+       struct pinctrl_ops *ops = pinctrl_get_ops(dev);
+
+       if (!ops->get_gpio_mux)
+               return -ENOSYS;
+
+       return ops->get_gpio_mux(dev, banknum, index);
+}
+
 /**
- * pinconfig_post-bind() - post binding for PINCTRL uclass
+ * pinconfig_post_bind() - post binding for PINCTRL uclass
  * Recursively bind child nodes as pinconfig devices in case of full pinctrl.
  *
  * @dev: pinctrl device
@@ -261,5 +287,6 @@ static int pinctrl_post_bind(struct udevice *dev)
 UCLASS_DRIVER(pinctrl) = {
        .id = UCLASS_PINCTRL,
        .post_bind = pinctrl_post_bind,
+       .flags = DM_UC_FLAG_SEQ_ALIAS,
        .name = "pinctrl",
 };