[U-Boot] [PATCH V2] dm: core: device: set pinctrl state for pinctrl device
Peng Fan
van.freenix at gmail.com
Wed Apr 6 15:21:27 CEST 2016
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 <van.freenix at gmail.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
Reviewed-by: Masahiro Yamada <yamada.masahiro at socionext.com>
---
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(+)
diff --git a/drivers/core/device.c b/drivers/core/device.c
index cb24a61..636a895 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -332,6 +332,9 @@ int device_probe(struct udevice *dev)
if (ret)
goto fail_uclass;
+ if (device_get_uclass_id(dev) == UCLASS_PINCTRL)
+ pinctrl_select_state(dev, "default");
+
return 0;
fail_uclass:
if (device_remove(dev)) {
--
2.6.2
More information about the U-Boot
mailing list