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Message-ID: <86e30740-6f12-1ef9-376f-85ce3fbca7b4@linaro.org>
Date:   Thu, 12 Jan 2023 17:16:43 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Yang Xiwen <forbidden405@...mail.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Jaime Breva <jbreva@...arsystems.com>,
        Nikita Travkin <nikita@...n.ru>,
        ~postmarketos/upstreaming@...ts.sr.ht
Subject: Re: [PATCH v2 3/3] arm64: dts: qcom: msm8916-thwc: Add initial device
 tree for Tong Heng Wei Chuang Wifi/LTE dongle UFI-001C and uf896



On 11.01.2023 15:13, Yang Xiwen wrote:
> This commit adds support for the ufi-001C and uf896 WiFi/LTE dongle made by
> Tong Heng Wei Chuang based on MSM8916.
> uf896 is another variant for the usb stick. The board design
> differs by using different gpios for the keys and leds.
> 
> Note: The original firmware does not support 64-bit OS. It is necessary
> to flash 64-bit TZ firmware to boot arm64.
> 
> Currently supported:
> - All CPU cores
> - Buttons
> - LEDs
> - Modem
> - SDHC
> - USB Device Mode
> - UART
> 
> Co-developed-by: Jaime Breva <jbreva@...arsystems.com>
> Signed-off-by: Jaime Breva <jbreva@...arsystems.com>
> Co-developed-by: Nikita Travkin <nikita@...n.ru>
> Signed-off-by: Nikita Travkin <nikita@...n.ru>
> Signed-off-by: Yang Xiwen <forbidden405@...mail.com>
> ---
>  arch/arm64/boot/dts/qcom/Makefile             |   2 +
>  .../boot/dts/qcom/msm8916-thwc-uf896.dts      |  41 +++
>  .../boot/dts/qcom/msm8916-thwc-ufi001c.dts    |  39 +++
>  arch/arm64/boot/dts/qcom/msm8916-ufi.dtsi     | 246 ++++++++++++++++++
>  4 files changed, 328 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/msm8916-thwc-uf896.dts
>  create mode 100644 arch/arm64/boot/dts/qcom/msm8916-thwc-ufi001c.dts
>  create mode 100644 arch/arm64/boot/dts/qcom/msm8916-ufi.dtsi
> 
> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
> index b42362c7be1bf..523dbe6d06be8 100644
> --- a/arch/arm64/boot/dts/qcom/Makefile
> +++ b/arch/arm64/boot/dts/qcom/Makefile
> @@ -21,6 +21,8 @@ dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-samsung-e7.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-samsung-grandmax.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-samsung-j5.dtb
>  dtb-$(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)	+= msm8953-motorola-potter.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= msm8953-xiaomi-daisy.dtb
> diff --git a/arch/arm64/boot/dts/qcom/msm8916-thwc-uf896.dts b/arch/arm64/boot/dts/qcom/msm8916-thwc-uf896.dts
> new file mode 100644
> index 0000000000000..79447ca48dd3a
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/msm8916-thwc-uf896.dts
> @@ -0,0 +1,41 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +
> +/dts-v1/;
> +
> +#include "msm8916-ufi.dtsi"
> +
> +/ {
> +	model = "uf896 4G Modem Stick";
> +	compatible = "thwc,uf896", "qcom,msm8916";
> +};
> +
> +&button_restart {
> +	gpios = <&msmgpio 35 GPIO_ACTIVE_LOW>;
> +};
> +
> +&led_r {
> +	gpios = <&msmgpio 82 GPIO_ACTIVE_HIGH>;
> +};
> +
> +&led_g {
> +	gpios = <&msmgpio 83 GPIO_ACTIVE_HIGH>;
> +	function = LED_FUNCTION_WLAN;
This is a software property, maybe it would be worth
commonizing?

> +};
> +
> +&led_b {
> +	gpios = <&msmgpio 81 GPIO_ACTIVE_HIGH>;
> +	function = LED_FUNCTION_WAN;
> +};
> +
> +&button_default {
> +	pins = "gpio35";
> +	bias-pull-up;
> +};
> +
> +&gpio_leds_default {
> +	pins = "gpio81", "gpio82", "gpio83";
> +};
> +
> +&sim_ctrl_default {
> +	pins = "gpio1", "gpio2";
> +};
> diff --git a/arch/arm64/boot/dts/qcom/msm8916-thwc-ufi001c.dts b/arch/arm64/boot/dts/qcom/msm8916-thwc-ufi001c.dts
> new file mode 100644
> index 0000000000000..700cf81cbf8c0
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/msm8916-thwc-ufi001c.dts
> @@ -0,0 +1,39 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +
> +/dts-v1/;
> +
> +#include "msm8916-ufi.dtsi"
> +
> +/ {
> +	model = "ufi-001c/ufi-001b 4G Modem Stick";
> +	compatible = "thwc,ufi001c", "qcom,msm8916";
> +};
> +
> +&button_restart {
> +	gpios = <&msmgpio 37 GPIO_ACTIVE_HIGH>;
> +};
> +
> +&led_r {
> +	gpios = <&msmgpio 22 GPIO_ACTIVE_HIGH>;
> +};
> +
> +&led_g {
> +	gpios = <&msmgpio 21 GPIO_ACTIVE_HIGH>;
> +};
> +
> +&led_b {
> +	gpios = <&msmgpio 20 GPIO_ACTIVE_HIGH>;
> +};
> +
> +&button_default {
> +	pins = "gpio37";
> +	bias-pull-down;
> +};
> +
> +&gpio_leds_default {
> +	pins = "gpio20", "gpio21", "gpio22";
> +};
> +
> +&sim_ctrl_default {
> +	pins = "gpio1", "gpio2";
Identical between both boards, move to common please.

> +};
> diff --git a/arch/arm64/boot/dts/qcom/msm8916-ufi.dtsi b/arch/arm64/boot/dts/qcom/msm8916-ufi.dtsi
> new file mode 100644
> index 0000000000000..286768d0fbe70
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/msm8916-ufi.dtsi
> @@ -0,0 +1,246 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +
> +#include "msm8916-pm8916.dtsi"
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/leds/common.h>
> +
> +/ {
> +	chassis-type = "embedded";
> +
> +	aliases {
> +		serial0 = &blsp1_uart2;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0";
> +	};
> +
> +	reserved-memory {
> +		mpss_mem: mpss@...00000 {
> +			reg = <0x0 0x86800000 0x0 0x5500000>;
> +			no-map;
> +		};
> +
> +		gps_mem: gps@...00000 {
> +			reg = <0x0 0x8bd00000 0x0 0x200000>;
> +			no-map;
> +		};
> +	};
> +
> +	gpio-keys {
> +		compatible = "gpio-keys";
> +
> +		pinctrl-0 = <&button_default>;
> +		pinctrl-names = "default";
> +
> +		label = "GPIO Buttons";
> +
> +		/* gpio is board-specific */
GPIO is an acronym, please make it uppercase, as you
did 10 lines below..

> +		button_restart: button-restart {
> +			label = "Restart";
> +			linux,code = <KEY_RESTART>;
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		pinctrl-0 = <&gpio_leds_default>;
> +		pinctrl-names = "default";
> +
> +		/* GPIOs are board-specific */
> +		led_r: led-r {
> +			color = <LED_COLOR_ID_RED>;
> +			default-state = "on";
> +			function = LED_FUNCTION_INDICATOR;
> +		};
> +
> +		led_g: led-g {
> +			color = <LED_COLOR_ID_GREEN>;
> +			default-state = "off";
> +			function = LED_FUNCTION_INDICATOR;
> +		};
> +
> +		led_b: led-b {
> +			color = <LED_COLOR_ID_BLUE>;
> +			default-state = "off";
> +			function = LED_FUNCTION_INDICATOR;
> +		};
> +	};
> +};
> +
> +&bam_dmux {
> +	status = "okay";
> +};
> +
> +&bam_dmux_dma {
> +	status = "okay";
> +};
> +
> +&blsp1_uart2 {
> +	status = "okay";
> +};
> +
> +/* Remove &dsi_phy0 from clocks to make sure that gcc probes with display disabled */
That sounds like a bad regression and shouldn't be an issue..

> +&gcc {
> +	clocks = <&xo_board>, <&sleep_clk>, <0>, <0>, <0>, <0>, <0>;
> +};
> +
> +&mpss {
> +	pinctrl-0 = <&sim_ctrl_default>;
> +	pinctrl-names = "default";
> +
> +	status = "okay";
> +};
> +
> +&pm8916_usbin {
> +	status = "okay";
> +};
> +
> +&pronto {
> +	status = "okay";
> +};
> +
> +&sdhc_1 {
> +	pinctrl-0 = <&sdc1_clk_on &sdc1_cmd_on &sdc1_data_on>;
> +	pinctrl-1 = <&sdc1_clk_off &sdc1_cmd_off &sdc1_data_off>;
> +	pinctrl-names = "default", "sleep";
> +
> +	status = "okay";
> +};
> +
> +&usb {
> +	extcon = <&pm8916_usbin>;
> +	dr_mode = "peripheral";
> +
> +	status = "okay";
> +};
> +
> +&usb_hs_phy {
> +	extcon = <&pm8916_usbin>;
> +};
> +
> +&smd_rpm_regulators {
Please sort this reference alphabetically.

Konrad
> +	vdd_l1_l2_l3-supply = <&pm8916_s3>;
> +	vdd_l4_l5_l6-supply = <&pm8916_s4>;
> +	vdd_l7-supply = <&pm8916_s4>;
> +
> +	s3 {
> +		regulator-min-microvolt = <1200000>;
> +		regulator-max-microvolt = <1300000>;
> +	};
> +
> +	s4 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <2100000>;
> +	};
> +
> +	l1 {
> +		regulator-min-microvolt = <1225000>;
> +		regulator-max-microvolt = <1225000>;
> +	};
> +
> +	l2 {
> +		regulator-min-microvolt = <1200000>;
> +		regulator-max-microvolt = <1200000>;
> +	};
> +
> +	l4 {
> +		regulator-min-microvolt = <2050000>;
> +		regulator-max-microvolt = <2050000>;
> +	};
> +
> +	l5 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +	};
> +
> +	l6 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +	};
> +
> +	l7 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +	};
> +
> +	l8 {
> +		regulator-min-microvolt = <2850000>;
> +		regulator-max-microvolt = <2900000>;
> +	};
> +
> +	l9 {
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	l10 {
> +		regulator-min-microvolt = <2700000>;
> +		regulator-max-microvolt = <2800000>;
> +	};
> +
> +	l11 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <2950000>;
> +		regulator-system-load = <200000>;
> +		regulator-allow-set-load;
> +	};
> +
> +	l12 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <2950000>;
> +	};
> +
> +	l13 {
> +		regulator-min-microvolt = <3075000>;
> +		regulator-max-microvolt = <3075000>;
> +	};
> +
> +	l14 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	l15 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	l16 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	l17 {
> +		regulator-min-microvolt = <2850000>;
> +		regulator-max-microvolt = <2850000>;
> +	};
> +
> +	l18 {
> +		regulator-min-microvolt = <2700000>;
> +		regulator-max-microvolt = <2700000>;
> +	};
> +};
> +
> +&msmgpio {
> +	/* pins are board-specific */
> +	button_default: button-default-state {
> +		function = "gpio";
> +		drive-strength = <2>;
> +	};
> +
> +	gpio_leds_default: gpio-leds-default-state {
> +		function = "gpio";
> +		drive-strength = <2>;
> +		bias-disable;
> +	};
> +
> +	sim_ctrl_default: sim-ctrl-default-state {
> +		function = "gpio";
> +		drive-strength = <2>;
> +		bias-disable;
> +		output-low;
> +	};
> +};

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