diff options
| author | Manikandan Muralidharan <manikandan.m@microchip.com> | 2025-02-10 12:21:42 +0530 |
|---|---|---|
| committer | Eugen Hristev <eugen.hristev@linaro.org> | 2025-02-12 10:31:56 +0200 |
| commit | 2925a046f599fefc9726789c75b82f2198c52e88 (patch) | |
| tree | f92d8be9e7f9d1b532b5dfe7853bd8929e633707 | |
| parent | 8e502c0e2c1bc026e2f0c93455b8aa43b2ddbe31 (diff) | |
pinctrl: at91: Add support to align with Linux Devicetree
U-Boot pinctrl driver expects a reg property explicitly unlike linux.
To align the DT of U-boot with the Linux, reg property is also arrvied
from child GPIO bank nodes when configured under the pinctrl node.
Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
| -rw-r--r-- | drivers/pinctrl/pinctrl-at91.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index 2afa1b66821..2938635ed95 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -522,17 +522,30 @@ static int at91_pinctrl_probe(struct udevice *dev) { struct at91_pinctrl_priv *priv = dev_get_priv(dev); fdt_addr_t addr_base; + struct udevice *gpio_node; int index; - for (index = 0; index < MAX_GPIO_BANKS; index++) { - addr_base = devfdt_get_addr_index(dev, index); - if (addr_base == FDT_ADDR_T_NONE) - break; + if (list_empty(&dev->child_head)) { + for (index = 0; index < MAX_GPIO_BANKS; index++) { + addr_base = devfdt_get_addr_index(dev, index); + if (addr_base == FDT_ADDR_T_NONE) + break; - priv->reg_base[index] = (struct at91_port *)addr_base; + priv->reg_base[index] = (struct at91_port *)addr_base; + } + } else { + index = 0; + list_for_each_entry(gpio_node, &dev->child_head, sibling_node) { + addr_base = dev_read_addr(gpio_node); + if (addr_base == FDT_ADDR_T_NONE) + break; + + priv->reg_base[index] = (struct at91_port *)addr_base; + index++; + } } - priv->nbanks = index; + priv->nbanks = index < MAX_GPIO_BANKS ? index : MAX_GPIO_BANKS; return 0; } |