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Message-ID: <20200313090011.GB7416@pi3>
Date: Fri, 13 Mar 2020 10:00:11 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Paul Cercueil <paul@...pouillou.net>,
Marek Szyprowski <m.szyprowski@...sung.com>
Cc: Kukjin Kim <kgene@...nel.org>, Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Stenkin Evgeniy <stenkinevgeniy@...il.com>,
linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] ARM: DTS: Add devicetree file for the Galaxy S2
On Thu, Mar 12, 2020 at 04:34:11PM +0100, Paul Cercueil wrote:
> From: Stenkin Evgeniy <stenkinevgeniy@...il.com>
>
> Add devicetree file for the Exynos 4210 based Galaxy S2 (i9100 version).
Thanks for the patch!
It is an GT-I9100.
+Cc Marek (I have few questions further)
>
> Signed-off-by: Stenkin Evgeniy <stenkinevgeniy@...il.com>
> Signed-off-by: Paul Cercueil <paul@...pouillou.net>
> ---
> arch/arm/boot/dts/Makefile | 1 +
> arch/arm/boot/dts/exynos4210-i9100.dts | 816 +++++++++++++++++++++++++
> 2 files changed, 817 insertions(+)
> create mode 100644 arch/arm/boot/dts/exynos4210-i9100.dts
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index d6546d2676b9..522436d30690 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -181,6 +181,7 @@ dtb-$(CONFIG_ARCH_EXYNOS3) += \
> exynos3250-monk.dtb \
> exynos3250-rinato.dtb
> dtb-$(CONFIG_ARCH_EXYNOS4) += \
> + exynos4210-i9100.dtb \
> exynos4210-origen.dtb \
> exynos4210-smdkv310.dtb \
> exynos4210-trats.dtb \
> diff --git a/arch/arm/boot/dts/exynos4210-i9100.dts b/arch/arm/boot/dts/exynos4210-i9100.dts
> new file mode 100644
> index 000000000000..c218e34959be
> --- /dev/null
> +++ b/arch/arm/boot/dts/exynos4210-i9100.dts
> @@ -0,0 +1,816 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Samsung's Exynos4210 based Galaxy S2 (i9100 version) device tree
Ditto
> + *
> + * Copyright (c) 2012 Samsung Electronics Co., Ltd.
> + * http://www.samsung.com
> + * Copyright (c) 2020 Stenkin Evgeniy <stenkinevgeniy@...il.com>
> + * Copyright (c) 2020 Paul Cercueil <paul@...pouillou.net>
> + *
> + * Device tree source file for Samsung's Galaxy S2 smartphone (i9100 version),
> + * which is based on Samsung's Exynos4210 SoC.
Duplicated description, you mentioned it before.
> + */
> +
> +/dts-v1/;
> +#include "exynos4210.dtsi"
> +#include "exynos4412-ppmu-common.dtsi"
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/linux-event-codes.h>
> +
> +/ {
> + model = "Samsung Galaxy S2 (i9100)";
GT-I9100
> + compatible = "samsung,i9100", "samsung,exynos4210", "samsung,exynos4";
I think it shares a lot with Trats board...
Marek, how similar these
designs are? Maybe it is worth to split some parts and make common part?
> +
> +
> + memory@...00000 {
> + device_type = "memory";
> + reg = <0x40000000 0x40000000>;
> + };
> +
You do not have a chosen node, at least for stdout serial selection.
Probably you should have one... bootargs I guess could come from
bootloader.
> + vemmc_reg: regulator-0 {
> + compatible = "regulator-fixed";
> + regulator-name = "VMEM_VDD_2.8V";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + gpio = <&gpk0 2 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
This looks like a stub/fake regulator. Probably it shoould be replaced
with proper regulator coming from PMIC (few seems to be missing there).
I don't have the schematics so I cannot judge... I see Trats has the
same.
Marek, mayybe you know, is it really a separate regulator?
> + };
> +
> + tsp_reg: regulator-1 {
> + compatible = "regulator-fixed";
> + regulator-name = "TSP_FIXED_VOLTAGES";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + gpio = <&gpl0 3 GPIO_ACTIVE_HIGH>;
> + startup-delay-us = <70000>;
> + enable-active-high;
> + regulator-boot-on;
> + regulator-always-on;
always-on and boot-on should not be needed. You have a consumer for this
regulator.
> + };
> +
> + cam_af_28v_reg: regulator-3 {
> + compatible = "regulator-fixed";
> + regulator-name = "8M_AF_2.8V_EN";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + gpio = <&gpk1 1 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + };
> +
> + cam_io_en_reg: regulator-4 {
> + compatible = "regulator-fixed";
> + regulator-name = "CAM_IO_EN";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + gpio = <&gpe2 1 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + };
> +
> + cam_io_12v_reg: regulator-5 {
> + compatible = "regulator-fixed";
> + regulator-name = "8M_1.2V_EN";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + gpio = <&gpe2 5 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + };
> +
> + vt_core_15v_reg: regulator-6 {
> + compatible = "regulator-fixed";
> + regulator-name = "VT_CORE_1.5V";
> + regulator-min-microvolt = <1500000>;
> + regulator-max-microvolt = <1500000>;
> + gpio = <&gpe2 2 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + };
> +
> + gpio-keys {
> + compatible = "gpio-keys";
> +
> + vol-down {
> + gpios = <&gpx2 1 GPIO_ACTIVE_LOW>;
> + linux,code = <KEY_VOLUMEDOWN>;
> + label = "volume down";
> + debounce-interval = <10>;
> + };
> +
> + vol-up {
> + gpios = <&gpx2 0 GPIO_ACTIVE_LOW>;
> + linux,code = <KEY_VOLUMEUP>;
> + label = "volume up";
> + debounce-interval = <10>;
> + };
> +
> + power {
> + gpios = <&gpx2 7 GPIO_ACTIVE_LOW>;
> + linux,code = <KEY_POWER>;
> + label = "power";
> + debounce-interval = <10>;
> + wakeup-source;
> + };
> +
> + ok {
> + gpios = <&gpx3 5 GPIO_ACTIVE_LOW>;
> + linux,code = <KEY_OK>;
> + label = "ok";
> + debounce-interval = <10>;
> + };
> + };
> +
> + wlan_pwrseq: sdhci3-pwrseq {
> + compatible = "mmc-pwrseq-simple";
> + reset-gpios = <&gpl1 2 GPIO_ACTIVE_LOW>;
> + };
> +
> + i2c_max17042_fuel: i2c-gpio-3 {
i2c-gpio-3 -> i2c-gpio
> + compatible = "i2c-gpio";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + sda-gpios = <&gpy4 0 GPIO_ACTIVE_HIGH>;
> + scl-gpios = <&gpy4 1 GPIO_ACTIVE_HIGH>;
> + i2c-gpio,delay-us = <5>;
> +
> + battery@36 {
> + compatible = "maxim,max17042";
> +
> + interrupt-parent = <&gpx2>;
> + interrupts = <3 2>;
s/2/IRQ_TYPE_EDGE_FALLING/
> +
> + pinctrl-0 = <&max17042_fuel_irq>;
> + pinctrl-names = "default";
> +
> + reg = <0x36>;
> + maxim,over-heat-temp = <700>;
> + maxim,over-volt = <4500>;
> +
Remove empty line.
> + };
> + };
> +
> + spi-lcd {
> + compatible = "spi-gpio";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + num-chipselects = <1>;
> + cs-gpios = <&gpy4 3 GPIO_ACTIVE_HIGH>;
> + sck-gpios = <&gpy3 1 GPIO_ACTIVE_HIGH>;
> + mosi-gpios = <&gpy3 3 GPIO_ACTIVE_HIGH>;
> +
> + lcd@0 {
> + compatible = "samsung,ld9040";
> + reg = <0>;
> +
> + spi-max-frequency = <1200000>;
> + spi-cpol;
> + spi-cpha;
> +
> + vdd3-supply = <&vmipi_reg>;
> + vci-supply = <&vcclcd_reg>;
> +
> + reset-gpios = <&gpy4 5 GPIO_ACTIVE_HIGH>;
> + power-on-delay = <10>;
> + reset-delay = <10>;
> +
> + panel-width-mm = <90>;
> + panel-height-mm = <154>;
> +
> + display-timings {
> + timing {
> + clock-frequency = <23492370>;
> + hactive = <480>;
> + vactive = <800>;
> + hback-porch = <16>;
> + hfront-porch = <16>;
> + vback-porch = <2>;
> + vfront-porch = <28>;
> + hsync-len = <2>;
> + vsync-len = <1>;
> + hsync-active = <0>;
> + vsync-active = <0>;
> + de-active = <0>;
> + pixelclk-active = <0>;
> + };
> + };
> +
> + port {
> + lcd_ep: endpoint {
> + remote-endpoint = <&fimd_dpi_ep>;
> + };
> + };
> + };
> + };
> +
> + fixed-rate-clocks {
> + xxti {
> + compatible = "samsung,clock-xxti";
> + clock-frequency = <0>;
> + };
> +
> + xusbxti {
> + compatible = "samsung,clock-xusbxti";
> + clock-frequency = <24000000>;
> + };
> + };
> +
> + thermal-zones {
> + cpu_thermal: cpu-thermal {
> + cooling-maps {
> + map0 {
> + /* Corresponds to 800MHz */
> + cooling-device = <&cpu0 2 2>;
> + };
> + map1 {
> + /* Corresponds to 200MHz */
> + cooling-device = <&cpu0 4 4>;
> + };
> + };
> + };
> + };
> +
> +};
> +
> +&camera {
> + status = "okay";
> +};
> +
> +&cpu0 {
> + cpu0-supply = <&varm_breg>;
> +};
> +
> +&exynos_usbphy {
> + status = "okay";
> +
> + vbus-supply = <&safe1_sreg>;
> +};
> +
> +&fimc_0 {
> + status = "okay";
> +
> + assigned-clocks = <&clock CLK_MOUT_FIMC0>, <&clock CLK_SCLK_FIMC0>;
> + assigned-clock-parents = <&clock CLK_SCLK_MPLL>;
> + assigned-clock-rates = <0>, <160000000>;
> +};
> +
> +&fimc_1 {
> + status = "okay";
> +
> + assigned-clocks = <&clock CLK_MOUT_FIMC1>, <&clock CLK_SCLK_FIMC1>;
> + assigned-clock-parents = <&clock CLK_SCLK_MPLL>;
> + assigned-clock-rates = <0>, <160000000>;
> +};
> +
> +&fimc_2 {
> + status = "okay";
> +
> + assigned-clocks = <&clock CLK_MOUT_FIMC2>, <&clock CLK_SCLK_FIMC2>;
> + assigned-clock-parents = <&clock CLK_SCLK_MPLL>;
> + assigned-clock-rates = <0>, <160000000>;
> +};
> +
> +&fimc_3 {
> + status = "okay";
> +
> + assigned-clocks = <&clock CLK_MOUT_FIMC3>, <&clock CLK_SCLK_FIMC3>;
> + assigned-clock-parents = <&clock CLK_SCLK_MPLL>;
> + assigned-clock-rates = <0>, <160000000>;
> +};
> +
> +&fimd {
> + status = "okay";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + samsung,invert-vden;
> + samsung,invert-vclk;
> +
> + pinctrl-0 = <&lcd_clk>, <&lcd_data24>;
> + pinctrl-names = "default";
> +
> + port@3 {
> + reg = <3>;
> +
> + fimd_dpi_ep: endpoint {
> + remote-endpoint = <&lcd_ep>;
> + };
> + };
> +};
> +
> +&hsotg {
> + status = "okay";
> +
> + dr_mode = "otg";
> + vusb_d-supply = <&vusb_reg>;
> + vusb_a-supply = <&vusbdac_reg>;
> +};
> +
> +&ehci {
Order the phandle/nodes in alphabetical order, please. So:
&ehci ...
&hsoth ...
&i2c ...
etc.
> + status = "okay";
> +
> + port@0 {
> + status = "okay";
> + };
> +
> + port@1 {
> + status = "okay";
> + };
> +
> + port@2 {
> + status = "okay";
> + };
> +};
> +
Double empty line.
> +
> +&i2c_3 {
> + status = "okay";
> +
> + samsung,i2c-sda-delay = <100>;
> + samsung,i2c-slave-addr = <0x10>;
> + samsung,i2c-max-bus-freq = <100000>;
> +
> + pinctrl-0 = <&i2c3_bus>;
> + pinctrl-names = "default";
> +
> + mxt224-touchscreen@4a {
> + compatible = "atmel,maxtouch";
> + reg = <0x4a>;
> +
> + interrupt-parent = <&gpx0>;
> + interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
> +
> + avdd-supply = <&tsp_reg>;
> + vdd-supply = <&tsp_reg>;
> + };
> +};
> +
> +&i2c_7 {
> + status = "okay";
> +
> + samsung,i2c-sda-delay = <100>;
> + samsung,i2c-slave-addr = <0x10>;
> + samsung,i2c-max-bus-freq = <400000>;
> +
> + pinctrl-0 = <&i2c7_bus>;
> + pinctrl-names = "default";
> +
> + ak8975@c {
> + compatible = "asahi-kasei,ak8975";
> + reg = <0x0c>;
> +
> + gpios = <&gpx2 2 GPIO_ACTIVE_HIGH>;
> + };
> +};
> +
> +
> +&i2c_5 {
> + status = "okay";
> +
> + samsung,i2c-sda-delay = <100>;
> + samsung,i2c-slave-addr = <0x10>;
> + samsung,i2c-max-bus-freq = <100000>;
> +
> + pinctrl-0 = <&i2c5_bus>;
> + pinctrl-names = "default";
> +
> + max8997_pmic@66 {
> + compatible = "maxim,max8997-pmic";
> + reg = <0x66>;
> +
> + interrupts-extended = <&gpx0 7 0>, <&gpx2 3 2>;
> + interrupt-parent = <&gpx0>;
> + interrupts = <7 IRQ_TYPE_NONE>;
> +
> + otg_en-gpios = <&gpx3 3 0>;
> + usb_sel-gpios = <&gpl0 6 0>;
> +
> + max8997,pmic-buck1-uses-gpio-dvs;
> + max8997,pmic-buck2-uses-gpio-dvs;
> + max8997,pmic-buck5-uses-gpio-dvs;
> +
> + max8997,pmic-ignore-gpiodvs-side-effect;
> + max8997,pmic-buck125-default-dvs-idx = <0>;
> +
> + max8997,pmic-buck125-dvs-gpios = <&gpx0 5 GPIO_ACTIVE_HIGH>,
> + <&gpx0 6 GPIO_ACTIVE_HIGH>,
> + <&gpl0 0 GPIO_ACTIVE_HIGH>;
> +
> + max8997,pmic-buck1-dvs-voltage = <1350000>, <1300000>,
> + <1250000>, <1200000>,
> + <1150000>, <1100000>,
> + <1000000>, <950000>;
> +
> + max8997,pmic-buck2-dvs-voltage = <1100000>, <1000000>,
> + <950000>, <900000>,
> + <1100000>, <1000000>,
> + <950000>, <900000>;
> +
> + max8997,pmic-buck5-dvs-voltage = <1200000>, <1200000>,
> + <1200000>, <1200000>,
> + <1200000>, <1200000>,
> + <1200000>, <1200000>;
> +
> + pinctrl-0 = <&max8997_irq>, <&otg_gp>, <&usb_sel>;
> + pinctrl-names = "default";
> +
> + regulators {
> + vadc_reg: LDO1 {
> + regulator-name = "VADC_3.3V_C210";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> +
> + };
Add empty line.
> + valive_reg: LDO2 {
> + regulator-name = "VALIVE_1.1V_C210";
> + regulator-min-microvolt = <1100000>;
> + regulator-max-microvolt = <1100000>;
> + regulator-always-on;
> +
> + };
> +
> + vusb_reg: LDO3 {
> + regulator-name = "VUSB_1.1V_C210";
> + regulator-min-microvolt = <1100000>;
> + regulator-max-microvolt = <1100000>;
> + };
> +
> + vmipi_reg: LDO4 {
> + regulator-name = "VMIPI_1.8V";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-always-on;
> + };
> +
> + vhsic_reg: LDO5 {
> + regulator-name = "VHSIC_1.2V";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + regulator-always-on;
> + };
> +
> + vpda_reg: LDO6 {
> + regulator-name = "VCC_1.8V_PDA";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-always-on;
> + };
> +
> + vcam_reg: LDO7 {
> + regulator-name = "CAM_ISP_1.8V";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> +
> + vusbdac_reg: LDO8 {
> + regulator-name = "VUSB+VDAC_3.3V_C210";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + };
> +
> + vccpda_reg: LDO9 {
> + regulator-name = "VCC_2.8V_PDA";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + regulator-always-on;
> + };
> +
> + vtouch_reg: LDO11 {
> + regulator-name = "TOUCH_2.8V";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + regulator-always-on;
> + };
> +
> + vpll_reg: LDO10 {
> + regulator-name = "VPLL_1.1V";
> + regulator-min-microvolt = <1100000>;
> + regulator-max-microvolt = <1100000>;
> + regulator-always-on;
> + };
> +
> + vtcam_reg: LDO12 {
> + regulator-name = "VT_CAM_1.8V";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> +
> + vcclcd_reg: LDO13 {
> + regulator-name = "VCC_3.0V_LCD";
> + regulator-min-microvolt = <3000000>;
> + regulator-max-microvolt = <3000000>;
> + };
> +
> + vmotor_reg: LDO14 {
> + regulator-name = "VCC_2.8V_MOTOR";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + };
> +
> + vled_reg: LDO15 {
> + regulator-name = "LED_A_2.8V";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + };
> +
> + camsensor_reg: LDO16 {
> + regulator-name = "CAM_SENSOR_IO_1.8V";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> +
> + vtf_reg: LDO17 {
> + regulator-name = "VTF_2.8V";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + };
> +
> + vtouchled_reg: LDO18 {
> + regulator-name = "TOUCH_LED_3.3V";
> + regulator-min-microvolt = <2500000>;
> + regulator-max-microvolt = <3300000>;
> + };
> +
> + vddq_reg: LDO21 {
> + regulator-name = "VDDQ_M1M2_1.2V";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + regulator-always-on;
> + };
> +
> + varm_breg: BUCK1 {
> + //regulator-name = "VARM_1.2V_C210";
> + regulator-name = "vdd_arm";
> + regulator-min-microvolt = <65000>;
> + regulator-max-microvolt = <2225000>;
> + regulator-always-on;
> + };
> +
> + vint_breg: BUCK2 {
> + regulator-name = "VINT_1.1V_C210";
> + regulator-min-microvolt = <65000>;
> + regulator-max-microvolt = <2225000>;
> + regulator-always-on;
> + };
> +
> + vg3d_breg: BUCK3 {
> + regulator-name = "G3D_1.1V";
> + regulator-min-microvolt = <900000>;
> + regulator-max-microvolt = <1200000>;
> + regulator-always-on;
> + };
> +
> + camisp_breg: BUCK4 {
> + regulator-name = "CAM_ISP_CORE_1.2V";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + };
> +
> + vmem_breg: BUCK5 {
> + regulator-name = "VMEM_1.2V";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + regulator-always-on;
> + };
> +
> + vccsub_breg: BUCK7 {
> + regulator-name = "VCC_SUB_2.0V";
> + regulator-min-microvolt = <2000000>;
> + regulator-max-microvolt = <2000000>;
> + regulator-always-on;
> + };
> +
> + safe1_sreg: ESAFEOUT1 {
> + regulator-name = "SAFEOUT1";
> + };
> +
> + safe2_sreg: ESAFEOUT2 {
> + regulator-name = "SAFEOUT2";
> + regulator-boot-on;
> + };
> +
> + charger_reg: CHARGER {
> + regulator-name = "CHARGER";
> + regulator-min-microamp = <60000>;
> + regulator-max-microamp = <2580000>;
> + regulator-always-on;
> + };
> +
> + chargercv_reg: CHARGER_CV {
> + regulator-name = "CHARGER_CV";
> + regulator-min-microvolt = <3800000>;
> + regulator-max-microvolt = <4100000>;
> + regulator-always-on;
> + };
> +
Empty line, not needed.
> + };
> +
Empty line, not needed.
> + };
> +};
> +
> +
Empty line, not needed. Please fix them in all places.
> +&gpu {
> + status = "okay";
> +
> + mali-supply = <&vg3d_breg>;
> + regulator-microvolt-offset = <50000>;
> + regulator-microsecs-delay = <50>;
> +};
> +
and more...
> +
> +&sdhci_0 {
> + status = "okay";
> +
> + bus-width = <8>;
> + non-removable;
> + vmmc-supply = <&vemmc_reg>;
> +
> + pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_bus8>;
> + pinctrl-names = "default";
> +};
> +
> +&sdhci_2 {
> + status = "okay";
> +
> + bus-width = <4>;
> + cd-gpios = <&gpx3 4 GPIO_ACTIVE_LOW>;
> + vmmc-supply = <&vtf_reg>;
> +
> + pinctrl-0 = <&sd2_clk>, <&sd2_cmd>, <&sd2_bus4>;
> + pinctrl-names = "default";
> +};
> +
> +&ehci {
Duplicated.
Best regards,
Krzysztof
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