linux-kernel - Re: [PATCH v2 5/5] arm: dts: imx8ulz-bsh-smm-m2: Add BSH SMM-M2 IMX6ULZ SystemMaster

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Message-ID: <20211214020427.GL4216@dragon>
Date:   Tue, 14 Dec 2021 10:04:28 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Ariel D'Alessandro <ariel.dalessandro@...labora.com>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, aisheng.dong@....com,
        festevam@...il.com, ioana.ciornei@....com,
        jagan@...rulasolutions.com, kernel@...gutronix.de, krzk@...nel.org,
        linux-imx@....com, matt@...verse.com.au, matteo.lisi@...icam.com,
        meenakshi.aggarwal@....com, michael@...rulasolutions.com,
        nathan@...nel.org, robh+dt@...nel.org, s.hauer@...gutronix.de,
        tharvey@...eworks.com
Subject: Re: [PATCH v2 5/5] arm: dts: imx8ulz-bsh-smm-m2: Add BSH SMM-M2
 IMX6ULZ SystemMaster

On Wed, Dec 08, 2021 at 03:15:52PM -0300, Ariel D'Alessandro wrote:
> Hi Shawn,
> 
> On 12/5/21 10:35 PM, Shawn Guo wrote:
> > On Tue, Nov 23, 2021 at 12:12:52PM -0300, Ariel D'Alessandro wrote:
> >> From: Michael Trimarchi <michael@...rulasolutions.com>
> >>
> >> Add DTS of BSH SMM-M2 SystemMaster.
> >>
> >> This version comes with:
> >> - 128 MiB DDR3 RAM
> >> - 256 MiB Nand
> >> - wifi
> >> - bluetooth
> >>
> >> Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@...labora.com>
> >> Signed-off-by: Michael Trimarchi <michael@...rulasolutions.com>
> >> ---
> >>  arch/arm/boot/dts/Makefile               |   3 +-
> >>  arch/arm/boot/dts/imx6ulz-bsh-smm-m2.dts | 153 +++++++++++++++++++++++
> >>  2 files changed, 155 insertions(+), 1 deletion(-)
> >>  create mode 100644 arch/arm/boot/dts/imx6ulz-bsh-smm-m2.dts
> >>
> >> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> >> index 0de64f237cd8..e6d4ad497985 100644
> >> --- a/arch/arm/boot/dts/Makefile
> >> +++ b/arch/arm/boot/dts/Makefile
> >> @@ -693,7 +693,8 @@ dtb-$(CONFIG_SOC_IMX6UL) += \
> >>  	imx6ull-phytec-segin-ff-rdk-nand.dtb \
> >>  	imx6ull-phytec-segin-ff-rdk-emmc.dtb \
> >>  	imx6ull-phytec-segin-lc-rdk-nand.dtb \
> >> -	imx6ulz-14x14-evk.dtb
> >> +	imx6ulz-14x14-evk.dtb \
> >> +	imx6ulz-bsh-smm-m2.dts
> >>  dtb-$(CONFIG_SOC_IMX7D) += \
> >>  	imx7d-cl-som-imx7.dtb \
> >>  	imx7d-colibri-aster.dtb \
> >> diff --git a/arch/arm/boot/dts/imx6ulz-bsh-smm-m2.dts b/arch/arm/boot/dts/imx6ulz-bsh-smm-m2.dts
> >> new file mode 100644
> >> index 000000000000..9e82860469e3
> >> --- /dev/null
> >> +++ b/arch/arm/boot/dts/imx6ulz-bsh-smm-m2.dts
> >> @@ -0,0 +1,153 @@
> >> +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> >> +/*
> >> + * Copyright (C) 2021 BSH Hausgeraete GmbH
> >> + */
> >> +
> >> +/dts-v1/;
> >> +
> >> +#include <dt-bindings/input/input.h>
> >> +#include "imx6ulz.dtsi"
> >> +
> >> +/ {
> >> +	model = "BSH SMM M2";
> >> +	compatible = "bsh,imx6ulz-bsh-smm-m2", "fsl,imx6ull";
> >> +
> >> +	chosen {
> >> +		stdout-path = &uart4;
> >> +	};
> >> +
> >> +	usdhc2_pwrseq: usdhc2_pwrseq {
> >> +		compatible = "mmc-pwrseq-simple";
> >> +		reset-gpios = <&gpio2 21 GPIO_ACTIVE_LOW>;
> >> +		status = "okay";
> > 
> > "okay" status is generally used to flip "disabled" devices.
> 
> Fixed in v3.
> 
> > 
> >> +	};
> >> +
> >> +};
> >> +
> >> +&uart3 {
> >> +	pinctrl-names = "default";
> >> +	pinctrl-0 = <&pinctrl_bluetooth_uart>;
> >> +	uart-has-rtscts;
> >> +
> > 
> > Unneeded newline.
> 
> Fixed in v3.
> 
> > 
> >> +	status = "okay";
> >> +
> >> +	bluetooth {
> >> +		compatible = "brcm,bcm4330-bt";
> >> +		max-speed = <3000000>;
> >> +		shutdown-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
> >> +		device-wakeup-gpios = <&gpio2 17 GPIO_ACTIVE_HIGH>;
> >> +		host-wakeup-gpios = <&gpio2 13 GPIO_ACTIVE_HIGH>;
> >> +	};
> >> +};
> >> +
> >> +&uart4 {
> >> +	pinctrl-names = "default";
> >> +	pinctrl-0 = <&pinctrl_debug_uart>;
> >> +	status = "okay";
> >> +};
> >> +
> >> +&usbotg1 {
> >> +	dr_mode = "peripheral";
> >> +	srp-disable;
> >> +	hnp-disable;
> >> +	adp-disable;
> >> +	status = "okay";
> >> +};
> >> +
> >> +&usbphy1 {
> >> +	fsl,tx-d-cal = <106>;
> >> +};
> >> +
> >> +&usdhc2 {
> >> +	#address-cells = <1>;
> >> +	#size-cells = <0>;
> >> +	pinctrl-names = "default";
> >> +	pinctrl-0 = <&pinctrl_wlan>;
> >> +	bus-width = <4>;
> >> +	no-1-8-v;
> >> +	non-removable;
> >> +	cap-power-off-card;
> >> +	pm-ignore-notify;
> > 
> > What is this?
> 
> Wrong vendor property, removed in v3.
> 
> Interesting there're other cases as well:
> 
> $ git grep -w pm-ignore-notify
> arch/arm/boot/dts/imx6ulz-bsh-smm-m2.dts:       pm-ignore-notify;
> arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi:   pm-ignore-notify;
> arch/arm64/boot/dts/freescale/imx8mm-icore-mx8mm-ctouch2.dts:
> pm-ignore-notify;
> arch/arm64/boot/dts/freescale/imx8mm-icore-mx8mm-edimm2.2.dts:
> pm-ignore-notify;
> arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi:   pm-ignore-notify;
> arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi:    pm-ignore-notify;

Thanks for the reminding!  I will fix them.

Shawn