imx7d pin conflict in devicetree

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imx7d pin conflict in devicetree

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atakanakbulut
Contributor II

Using Nand (MTDXX) and i2c touchscreen (tsc2004) is conflict . How to fix this problem. tsc2004 is not working when enabled nand in devicetree

input: 30370000.snvs:snvs-powerkey as /devices/soc0/soc/30000000.aips-bus/30370000.snvs/30370000.snvs:snvs-powerkey/input/input0
imx7d-pinctrl 30330000.iomuxc: pin MX7D_PAD_SAI1_RX_DATA already requested by 33002000.gpmi-nand; cannot claim for 0-004b --> i2c adress
imx7d-pinctrl 30330000.iomuxc: pin-128 (0-004b) status -22
imx7d-pinctrl 30330000.iomuxc: could not request pin 128 (MX7D_PAD_SAI1_RX_DATA) from group i2c1tsc2004grp  on device 30330000.iomuxc


touch@4b {
compatible = "ti,tsc2004";
reg = <0x4b>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1_tsc2004>;
interrupts-extended = <&gpio6 12 IRQ_TYPE_EDGE_RISING>;
wakeup-gpios = <&gpio6 12 GPIO_ACTIVE_LOW>;

touchscreen-fuzz-x = <4>;
touchscreen-fuzz-y = <7>;
touchscreen-fuzz-pressure = <2>;
touchscreen-size-x = <800>;
touchscreen-size-y = <480>;
touchscreen-max-pressure = <1024>;

ti,x-plate-ohms = <280>;
ti,esd-recovery-timeout-ms = <6000>;
};

pinctrl_i2c1_tsc2004: i2c1tsc2004grp {
fsl,pins = <
MX7D_PAD_SAI1_RX_DATA__GPIO6_IO12 0x7d
>;
};

&gpmi {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_gpmi_nand_1>;
status = "okay";
nand-on-flash-bbt;
};

pinctrl_gpmi_nand_1: gpmi-nand-1 {
fsl,pins = <
MX7D_PAD_SD3_CLK__NAND_CLE 0x71
MX7D_PAD_SD3_CMD__NAND_ALE 0x71
MX7D_PAD_SAI1_MCLK__NAND_WP_B 0x71
MX7D_PAD_SAI1_TX_BCLK__NAND_CE0_B 0x71
MX7D_PAD_SAI1_RX_DATA__NAND_CE1_B 0x71
MX7D_PAD_SAI1_TX_DATA__NAND_READY_B 0x74
MX7D_PAD_SD3_STROBE__NAND_RE_B 0x71
MX7D_PAD_SD3_RESET_B__NAND_WE_B 0x71
MX7D_PAD_SD3_DATA0__NAND_DATA00 0x71
MX7D_PAD_SD3_DATA1__NAND_DATA01 0x71
MX7D_PAD_SD3_DATA2__NAND_DATA02 0x71
MX7D_PAD_SD3_DATA3__NAND_DATA03 0x71
MX7D_PAD_SD3_DATA4__NAND_DATA04 0x71
MX7D_PAD_SD3_DATA5__NAND_DATA05 0x71
MX7D_PAD_SD3_DATA6__NAND_DATA06 0x71
MX7D_PAD_SD3_DATA7__NAND_DATA07 0x71
>;
};

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Atakan

as both GPIO6_IO12 and NAND_CE1 are configured for SAI1_RXD,

one can try to use any free available gpio instead GPIO6_IO12 in tsc2004 pinctrl.

Best regards
igor
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