linux-hardening - Re: [PATCH 3/3] arm64: dts: qcom: Add device tree for Xiaomi Mi 11 Ultra

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Date:   Sat, 5 Aug 2023 22:17:23 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     wuxilin123@...il.com, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Tony Luck <tony.luck@...el.com>,
        "Guilherme G. Piccoli" <gpiccoli@...lia.com>
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH 3/3] arm64: dts: qcom: Add device tree for Xiaomi Mi 11
 Ultra

On 05/08/2023 19:03, Xilin Wu via B4 Relay wrote:
> From: Xilin Wu <wuxilin123@...il.com>
> 
> Add support for Xiaomi Mi 11 Ultra. This commit brings support for:
> * Front and rear display panels (initialized by bootloader)
> * USB
> * UFS
> * PCIe0
> * Thermistor sensors
> * ADSP/CDSP/Modem/SLPI
> * IR Transmitter
> * RTC provided by PMK8350
> * Buttons
> 

...


> +/*
> + * Delete following upstream (sm8350.dtsi) reserved
> + * memory mappings which are different on this device.


> + */
> +/delete-node/ &pil_adsp_mem;
> +/delete-node/ &pil_slpi_mem;
> +/delete-node/ &pil_cdsp_mem;
> +/delete-node/ &pil_ipa_fw_mem;
> +/delete-node/ &pil_ipa_gsi_mem;
> +/delete-node/ &pil_gpu_mem;
> +/delete-node/ &pil_spss_mem;
> +/delete-node/ &pil_modem_mem;
> +/delete-node/ &rmtfs_mem;
> +/delete-node/ &pil_trustedvm_mem;
> +/delete-node/ &removed_mem;
> +
> +/ {
> +	model = "Xiaomi Mi 11 Ultra";
> +	compatible = "xiaomi,star", "qcom,sm8350";
> +	chassis-type = "handset";
> +
> +	chosen {
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges;
> +
> +		framebuffer0: framebuffer-front@...00000 {

framebuffer@

> +			compatible = "simple-framebuffer";
> +			reg = <0 0xea600000 0 (1440 * 3200 * 4)>;
> +
> +			width = <1440>;
> +			height = <3200>;
> +			stride = <(1440 * 4)>;
> +			format = "a8r8g8b8";
> +		};
> +
> +		framebuffer1: framebuffer-rear@...9c000 {

framebuffer@

> +			compatible = "simple-framebuffer";
> +			reg = <0 0xeb79c000 0 (126 * 294 * 4)>;
> +
> +			width = <126>;
> +			height = <294>;
> +			stride = <(126 * 4)>;
> +			format = "a8r8g8b8";
> +		};
> +	};
> +




> +			reg = <0 0x86100000 0 0x3900000>;
> +			no-map;
> +		};
> +
> +		pil_slpi_mem: memory@...00000 {
> +			reg = <0 0x89a00000 0 0x2f00000>;
> +			no-map;
> +		};
> +
> +		pil_cdsp_mem: memory@...00000 {
> +			reg = <0 0x8c900000 0 0x1e00000>;
> +			no-map;
> +		};
> +
> +		pil_ipa_fw_mem: memory@...00000 {
> +			reg = <0 0x8e700000 0 0x10000>;
> +			no-map;
> +		};
> +
> +		pil_ipa_gsi_mem: memory@...10000 {
> +			reg = <0 0x8e710000 0 0xa000>;
> +			no-map;
> +		};
> +

...

> +&pm8350c_gpios {
> +	gpio-line-names = "VDD_BOOST_5V_EN",
> +			  "NC",
> +			  "OTG_OVP_EN",
> +			  "WL_TXON",
> +			  "NC",
> +			  "NC",
> +			  "NC",
> +			  "NC",
> +			  "NC";
> +};
> +
> +&pmk8350_adc_tm {
> +	status = "okay";
> +
> +	pm8350-skin-therm@0 {

Hm, didn't we change the node names to generic "channel" and started
using labels? At least in next or ongoing patches? Or was it only for VADC?


> +		reg = <0>;
> +		io-channels = <&pmk8350_vadc PM8350_ADC7_AMUX_THM1_100K_PU(1)>;
> +		qcom,ratiometric;
> +		qcom,hw-settle-time-us = <200>;
> +	};

...

> +
> +&ufs_mem_hc {
> +	status = "okay";
> +
> +	reset-gpios = <&tlmm 203 GPIO_ACTIVE_LOW>;
> +
> +	vcc-supply = <&vreg_l7b_2p96>;
> +	vcc-max-microamp = <800000>;
> +	vccq-supply = <&vreg_l9b_1p2>;
> +	vccq-max-microamp = <900000>;
> +};
> +
> +&ufs_mem_phy {
> +	status = "okay";
> +
> +	vdda-phy-supply = <&vreg_l5b_0p88>;
> +	vdda-pll-supply = <&vreg_l6b_1p2>;
> +};
> +
> +&usb_1 {
> +	/* USB 2.0 only */
> +	qcom,select-utmi-as-pipe-clk;
> +	status = "okay";
> +};
> +
> +&usb_1_dwc3 {
> +	dr_mode = "otg";
> +	usb-role-switch;
> +	maximum-speed = "high-speed";
> +	/* Remove USB3 phy */
> +	phys = <&usb_1_hsphy>;
> +	phy-names = "usb2-phy";
> +};
> +
> +&usb_1_dwc3_hs {
> +	remote-endpoint = <&pmic_glink_hs_in>;
> +};
> +
> +&usb_1_hsphy {
> +	status = "okay";
> +
> +	vdda-pll-supply = <&vreg_l5b_0p88>;
> +	vdda18-supply = <&vreg_l1c_1p8>;
> +	vdda33-supply = <&vreg_l2b_3p07>;
> +};
> +

Looks like you have trailing blank line.

Best regards,
Krzysztof