dm: core: device: set pinctrl state for pinctrl device

We may have pinmux settings for pinctrl device, like the following example:
"

&iomuxc {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_hog_1>;
        imx6ul-evk {
                pinctrl_hog_1: hoggrp-1 {
                        fsl,pins = <
                                MX6UL_PAD_UART1_RTS_B__GPIO1_IO19       0x17059 /* SD1 CD */
                                MX6UL_PAD_GPIO1_IO05__USDHC1_VSELECT    0x17059 /* SD1 VSELECT */
                                MX6UL_PAD_GPIO1_IO09__GPIO1_IO09        0x17059 /* SD1 RESET */
                                MX6UL_PAD_SNVS_TAMPER0__GPIO5_IO00      0x80000000
                        >;
                };
        [......]
};

"

We should not only select pinctrl state for non pinctrl devices, we need also to handle pin mux settings such as pinctrl_log for pinctrl devices.

So at the end of probing process of pinctrl device, select the default state of pinctrl device.

Signed-off-by Peng Fan <[email protected]>

Reviewed-by Simon Glass <[email protected]>

Reviewed-by Masahiro Yamada <[email protected]>

---

V2:
To pinctrl node, it is not root node. No need to check dev->parent.

 drivers/core/device.c | 3 +++
 1 file changed, 3 insertions(+)