On Fri, Feb 11, 2022 at 03:23:20PM -0800, Tim Harvey wrote:
> > > I tried to adapt my patch 'arm64: dts: imx8mm-venice-gw73xx-0x: add dt
> > > overlays for serial modes' [1] and it results in a build failure:
> > > $ make dtbs W=1
> > > UPD include/config/kernel.release
> > > DTC arch/arm64/boot/dts/freescale/imx8mm-venice-gw73xx-0x-rs232-rts.dtbo
> > > DTOVL arch/arm64/boot/dts/freescale/imx8mm-venice-gw73xx-0x-rs232-rts.dtb
> > >
> > > Overlay 'scripts/dtc/include-prefixes/dt-bindings/gpio/gpio.h' is
> > > incomplete (2048 / 1346656301 bytes read)
> > > scripts/Makefile.lib:360: recipe for target
> > > 'arch/arm64/boot/dts/freescale/imx8mm-venice-gw73xx-0x-rs232-rts.dtb'
> > > failed
> > > make[2]: *** [arch/arm64/boot/dts/freescale/imx8mm-venice-gw73xx-0x-rs232-rts.dtb]
> > > Error 1
> > > scripts/Makefile.build:550: recipe for target
> > > 'arch/arm64/boot/dts/freescale' failed
> > > make[1]: *** [arch/arm64/boot/dts/freescale] Error 2
> > > Makefile:1370: recipe for target 'dtbs' failed
> > > make: *** [dtbs] Error 2
> > >
> > > It seems that it chokes on the include. The dts is:
> > > // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> > > /*
> > > * Copyright 2022 Gateworks Corporation
> > > *
> > > * GW73xx RS232 with RTS/CTS hardware flow control:
> > > * - GPIO4_0 rs485_en needs to be driven low (in-active)
> > > * - UART4_TX becomes RTS
> > > * - UART4_RX becomes CTS
> > > */
> > >
> > > #include <dt-bindings/gpio/gpio.h>
> > >
> > > #include "imx8mm-pinfunc.h"
> > >
> > > /dts-v1/;
> > > /plugin/;
> > >
> > > &{/} {
> > > compatible = "gw,imx8mm-gw73xx-0x";
> > > };
> > >
> > > &gpio4 {
> > > rs485_en {
> > > gpio-hog;
> > > gpios = <0 GPIO_ACTIVE_HIGH>;
> > > output-low;
> > > line-name = "rs485_en";
> > > };
> > > };
> > >
> > > &uart2 {
> > > pinctrl-names = "default";
> > > pinctrl-0 = <&pinctrl_uart2>;
> > > rts-gpios = <&gpio5 29 GPIO_ACTIVE_LOW>;
> > > cts-gpios = <&gpio5 28 GPIO_ACTIVE_LOW>;
> > > uart-has-rtscts;
> > > status = "okay";
> > > };
> > >
> > > &uart4 {
> > > status = "disabled";
> > > };
> > >
> > > &iomuxc {
> > > pinctrl_uart2: uart2grp {
> > > fsl,pins = <
> > > MX8MM_IOMUXC_UART2_RXD_UART2_DCE_RX 0x140
> > > MX8MM_IOMUXC_UART2_TXD_UART2_DCE_TX 0x140
> > > MX8MM_IOMUXC_UART4_TXD_GPIO5_IO29 0x140
> > > MX8MM_IOMUXC_UART4_RXD_GPIO5_IO28 0x140
> > > >;
> > > };
> > > };
> > >
> > > Could you explain what is wrong here? It compiled fine before trying
> > > to adapt the Makefile to what is described in 15d16d6dadf6 ("kbuild:
> > > Add generic rule to applyfdt overlay"
> >
> >
> > With the following changes on top of your patch, I can build the dtbo
> > without error.
> >
> > ---8<-------
> > diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
> > index 4611f66096a7..d42a9e03f014 100644
> > --- a/arch/arm64/boot/dts/freescale/Makefile
> > +++ b/arch/arm64/boot/dts/freescale/Makefile
> > @@ -61,9 +61,6 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-var-som-symphony.dtb
> > dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw71xx-0x.dtb
> > dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x.dtb
> > dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw73xx-0x.dtb
> > -dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw73xx-0x-rs232-rts.dtbo
> > -dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw73xx-0x-rs422.dtbo
> > -dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw73xx-0x-rs485.dtbo
> > dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw7901.dtb
> > dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw7902.dtb
> > dtb-$(CONFIG_ARCH_MXC) += imx8mn-beacon-kit.dtb
> > @@ -97,6 +94,14 @@ dtb-$(CONFIG_ARCH_MXC) += imx8qxp-colibri-eval-v3.dtb
> > dtb-$(CONFIG_ARCH_MXC) += imx8qxp-mek.dtb
> > dtb-$(CONFIG_ARCH_MXC) += imx8ulp-evk.dtb
> >
> > +imx8mm-venice-gw73xx-0x-rs232-rts-dtbs := imx8mm-venice-gw73xx-0x.dtb imx8mm-venice-gw73xx-0x-rs232-rts.dtbo
> > +imx8mm-venice-gw73xx-0x-rs422-dtbs := imx8mm-venice-gw73xx-0x.dtb imx8mm-venice-gw73xx-0x-rs422.dtbo
> > +imx8mm-venice-gw73xx-0x-rs485-dtbs := imx8mm-venice-gw73xx-0x.dtb imx8mm-venice-gw73xx-0x-rs485.dtbo
> > +
> > +dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw73xx-0x-rs232-rts.dtb
> > +dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw73xx-0x-rs422.dtb
> > +dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw73xx-0x-rs485.dtb
> > +
> > dtb-$(CONFIG_ARCH_S32) += s32g274a-evb.dtb
> > dtb-$(CONFIG_ARCH_S32) += s32g274a-rdb2.dtb
> > dtb-$(CONFIG_ARCH_S32) += s32v234-evb.dtb
>
> Shawn,
>
> On top of what branch and with what commands? I've rebased this on top
> of your imx/dt64 branch and can not build once I apply this over my
> patch using 'make dtbs W=1'.
Tim,
For your reference, I pushed the changes as below.
https://git.linaro.org/people/shawn.guo/linux-2.6.git/log/?h=test/gw73xx-dtbo
The build command is:
$ make W=1 ARCH=arm64 dtbs
UPD include/config/kernel.release
DTC arch/arm64/boot/dts/freescale/imx8mm-venice-gw73xx-0x-rs232-rts.dtbo
DTC arch/arm64/boot/dts/freescale/imx8mm-venice-gw73xx-0x-rs422.dtbo
DTC arch/arm64/boot/dts/freescale/imx8mm-venice-gw73xx-0x-rs485.dtbo
DTOVL arch/arm64/boot/dts/freescale/imx8mm-venice-gw73xx-0x-rs232-rts.dtb
DTOVL arch/arm64/boot/dts/freescale/imx8mm-venice-gw73xx-0x-rs422.dtb
DTOVL arch/arm64/boot/dts/freescale/imx8mm-venice-gw73xx-0x-rs485.dtb
Maybe you forgot to set up 'ARCH' variable?
Shawn
