linux-kernel - Re: [PATCH v8 5/5] arm64: dts: qcom: Add msm8939 Sony Xperia M4 Aqua

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Message-ID: <ZC74b5yR2PF2_sYy@gerhold.net>
Date:   Thu, 6 Apr 2023 18:50:55 +0200
From:   Stephan Gerhold <stephan@...hold.net>
To:     Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Cc:     agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        djakov@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, linux-arm-msm@...r.kernel.org,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, benl@...areup.com,
        shawn.guo@...aro.org, fabien.parent@...aro.org, leo.yan@...aro.org,
        dmitry.baryshkov@...aro.org
Subject: Re: [PATCH v8 5/5] arm64: dts: qcom: Add msm8939 Sony Xperia M4 Aqua

On Thu, Mar 30, 2023 at 04:32:22PM +0100, Bryan O'Donoghue wrote:
> Add a basic booting DTS for the Sony Xperia M4 Aqua aka "tulip".
> 
> Tulip is paired with:
> 
> - wcn3660
> - smb1360 battery charger
> - 720p Truly NT35521 Panel
> 
> Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/Makefile             |   1 +
>  .../qcom/msm8939-sony-xperia-kanuti-tulip.dts | 184 ++++++++++++++++++
>  2 files changed, 185 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/msm8939-sony-xperia-kanuti-tulip.dts
> 
> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
> index 31e0ac97fc088..3f8321ecb7e5f 100644
> --- a/arch/arm64/boot/dts/qcom/Makefile
> +++ b/arch/arm64/boot/dts/qcom/Makefile
> @@ -30,6 +30,7 @@ dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-samsung-serranove.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-thwc-uf896.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-thwc-ufi001c.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-wingtech-wt88047.dtb
> +dtb-$(CONFIG_ARCH_QCOM)	+= msm8939-sony-xperia-kanuti-tulip.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= msm8953-motorola-potter.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= msm8953-xiaomi-daisy.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= msm8953-xiaomi-mido.dtb
> diff --git a/arch/arm64/boot/dts/qcom/msm8939-sony-xperia-kanuti-tulip.dts b/arch/arm64/boot/dts/qcom/msm8939-sony-xperia-kanuti-tulip.dts
> new file mode 100644
> index 0000000000000..cb47bb2413a7c
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/msm8939-sony-xperia-kanuti-tulip.dts
> @@ -0,0 +1,184 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2015, The Linux Foundation. All rights reserved.
> + * Copyright (c) 2022-2023, Bryan O'Donoghue.
> + *
> + */
> +
> +/dts-v1/;
> +
> +#include "msm8939.dtsi"
> +#include "msm8939-pm8916.dtsi"
> +#include <dt-bindings/arm/qcom,ids.h>
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
> +
> +/ {
> +	model = "Sony Xperia M4 Aqua";
> +	compatible = "sony,kanuti-tulip", "qcom,msm8939";
> +
> +	qcom,board-id = <QCOM_BOARD_ID_MTP 0>;
> +	qcom,msm-id = <QCOM_ID_MSM8939 0>, <QCOM_ID_MSM8939 0x30000>;
> +
> +	aliases {
> +		mmc0 = &sdhc_1; /* SDC1 eMMC slot */
> +		mmc1 = &sdhc_2; /* SDC2 SD card slot */
> +		serial0 = &blsp1_uart2;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	usb_id: usb-id {
> +		compatible = "linux,extcon-usb-gpio";
> +		id-gpio = <&tlmm 110 GPIO_ACTIVE_HIGH>;
> +		pinctrl-0 = <&usb_id_default>;
> +		pinctrl-names = "default";
> +	};
> +};
> +
> +&mdss {
> +	status = "okay";
> +};
> +
> +&tlmm {
> +	usb_id_default: usb-id-default-state {
> +		pins = "gpio110";
> +		function = "gpio";
> +		bias-pull-up;
> +		drive-strength = <8>;
> +	};
> +};

FWIW the node order seems wrong here (m -> t -> p).

> +
> +&pronto {
> +	status = "okay";
> +
> +	iris {
> +		compatible = "qcom,wcn3660";
> +	};
> +};
> +
> [...]
> +&sdhc_1 {
> +	pinctrl-0 = <&sdc1_default_state>;
> +	pinctrl-1 = <&sdc1_sleep_state>;
> +	pinctrl-names = "default", "sleep";
> +	status = "okay";
> +};
> +
> +&sdhc_2 {
> +	pinctrl-0 = <&sdc2_default_state>;
> +	pinctrl-1 = <&sdc2_sleep_state>;
> +	pinctrl-names = "default", "sleep";
> +	cd-gpios = <&tlmm 38 GPIO_ACTIVE_HIGH>;
> +	status = "okay";
> +};
> +
> +&usb {
> +	dr_mode = "device";
> +	extcon = <&usb_id>, <&usb_id>;
> +	status = "okay";
> +};
> +

Hm is there a special reason for forcing dr_mode = "device" here?
If the USB ID GPIO works properly you should be in device mode all the
time unless you plug in an USB OTG adapter. Seems a bit strange.

Thanks,
Stephan