topic Re: IMX7 Device Tree Error in i.MX Processors

IMX7 Device Tree Error

tlamarc — Tue, 12 Dec 2023 15:43:40 GMT

Any ideas why I get the following error when booting an IMX7 platform where I have added a section called nucd_leds to the device tree, but my code does not use the pin it is complaining about (MX7D_PAD_GPIO1_IO08)

ERROR:

imx7d-pinctrl 30330000.iomuxc: pin MX7D_PAD_GPIO1_IO08 already requested by 30b40000.usdhc; cannot claim for nucd_leds
imx7d-pinctrl 30330000.iomuxc: pin-5 (nucd_leds) status -22
imx7d-pinctrl 30330000.iomuxc: could not request pin 5 (MX7D_PAD_GPIO1_IO08) from group status_led on device 30330000.iomuxc
leds-gpio nucd_leds: Error applying setting, reverse things back
leds-gpio: probe of nucd_leds failed with error -22

MY CODE:

/ {
nucd_leds {
compatible = "gpio-leds";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_status_led>;

status-red {
label = "status_red";
gpios = <&gpio1 5 0>;
default-state = "off";
};

status-green {
label = "status_green";
gpios = <&gpio1 6 0>;
default-state = "off";
};

status-blue {
label = "status_blue";
gpios = <&gpio1 7 0>;
default-state = "on";
};
};
};

&iomuxc_lpsr {
asc-imx7s {
pinctrl_status_led: status_led {
fsl,pins = <
MX7D_PAD_LPSR_GPIO1_IO05__GPIO1_IO5 0x14 /* Red LED */
MX7D_PAD_LPSR_GPIO1_IO06__GPIO1_IO6 0x14 /* Grn LED */
MX7D_PAD_LPSR_GPIO1_IO07__GPIO1_IO7 0x14 /* Blu LED */
>;
};
};
};

Re: IMX7 Device Tree Error

JosephAtNXP — Mon, 18 Dec 2023 14:58:25 GMT

Hi,

Thank you for your interest in NXP Semiconductor products,

Could you check that the dtsis used are not using the pin requested or the newly added GPIO1 5, 6 and 7?

Did you dtsi include the imx7d-sdb.dts or made a completely new?

In such case that there are no other declarations, could you share your complete device tree?

Regards

Re: IMX7 Device Tree Error

tlamarc — Mon, 18 Dec 2023 22:11:36 GMT

My main dts file has this for the includes:

#include "imx7d.dtsi"
#include "leds-mx7.dtsi"

Note that the leds-mx7.dtsi code is posted above (references to GPIO 5, 6, and 7).

And my main dts file has this compatible line (reference to imx7d-sdb):

compatible = "fsl,imx7d-sdb", "fsl,imx7d";

Also my main dts file also has this section (reference to GPIO1_IO08 error above):

pinctrl_usdhc1_gpio: usdhc1_gpiogrp {

fsl,pins = <

MX7D_PAD_SD1_CD_B__GPIO5_IO0 0x59 /* CD */

MX7D_PAD_SD1_WP__GPIO5_IO1 0x59 /* WP */

MX7D_PAD_SD1_RESET_B__GPIO5_IO2 0x59 /* vmmc */

MX7D_PAD_GPIO1_IO08__SD1_VSELECT 0x59 /* VSELECT */

};

There are no other references to GPIO1 5, 6, 7, or 8.