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Date:   Wed, 26 Jun 2019 02:00:53 +0000
From:   Andrew MS1 Peng <pengms1@...ovo.com>
To:     Andrew Jeffery <andrew@...id.au>,
        Patrick Venture <venture@...gle.com>,
        Benjamin Fair <benjaminfair@...gle.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-aspeed@...ts.ozlabs.org" <linux-aspeed@...ts.ozlabs.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>
CC:     Lisa YJ19 Liu <liuyj19@...ovo.com>, Duke KH Du <dukh@...ovo.com>,
        "Yonghui YH21 Liu" <liuyh21@...ovo.com>,
        Harry Sung1 <hsung1@...ovo.com>, Joel Stanley <joel@....id.au>,
        "openbmc@...ts.ozlabs.org" <openbmc@...ts.ozlabs.org>,
        Derek Lin23 <dlin23@...ovo.com>
Subject: 答复: [External]  Re: [PATCH] [PATCH v1] ARM: dts: aspeed: Adding Lenovo Hr855xg2 BMC

Hi Andrew

We've got a couple of patches on their way upstream for 5.3 that remove the need to reserve memory simply to satisfy the aspeed-lpc-ctrl driver.
If you base the patch on top of Joel's aspeed-5.3-soc tag you can remove this node and the phandle reference to it.
	I reserve 1MB for lpc-bridge in DT file for in-band firmware update (phosphor-ipmi-flash).

Just want to confirm that you want the kernel to hog these lines (the consequence is they're unavailable to userspace).
	Yes, I have confirmed the setting of GPIO.

Regards,
Andrew Peng

-----邮件原件-----
发件人: Andrew Jeffery <andrew@...id.au> 
发送时间: 2019年6月26日 8:31
收件人: Andrew MS1 Peng <pengms1@...ovo.com>; Patrick Venture <venture@...gle.com>; Benjamin Fair <benjaminfair@...gle.com>; linux-kernel@...r.kernel.org; linux-aspeed@...ts.ozlabs.org; linux-arm-kernel@...ts.infradead.org; devicetree@...r.kernel.org; mark.rutland@....com; Rob Herring <robh+dt@...nel.org>
抄送: Lisa YJ19 Liu <liuyj19@...ovo.com>; Duke KH Du <dukh@...ovo.com>; Yonghui YH21 Liu <liuyh21@...ovo.com>; Harry Sung1 <hsung1@...ovo.com>; Joel Stanley <joel@....id.au>; openbmc@...ts.ozlabs.org; Derek Lin23 <dlin23@...ovo.com>
主题: [External] Re: [PATCH] [PATCH v1] ARM: dts: aspeed: Adding Lenovo Hr855xg2 BMC



On Tue, 25 Jun 2019, at 16:08, Andrew Peng wrote:
> Initial introduction of Lenovo Hr855xg2 family equipped with Aspeed 
> 2500 BMC SoC. Hr855xg2 is a x86 server development kit with a ASPEED 
> ast2500 BMC manufactured by Lenovo.
> Specifically, This adds the Hr855xg2 platform device tree file used by 
> the Hr855xg2 BMC machines.
> 
> This also adds an entry of Hr855xg2 device tree file in Makefile
> 
> Signed-off-by: Andrew Peng <pengms1@...ovo.com>
> Signed-off-by: Yonghui Liu <liuyh21@...ovo.com>
> Signed-off-by: Lisa Liu <liuyj19@...ovo.com>
> Signed-off-by: Harry Sung <hsung1@...ovo.com>
> Signed-off-by: Derek Lin <dlin23@...ovo.com>
> ---
>  arch/arm/boot/dts/Makefile                       |   1 +
>  arch/arm/boot/dts/aspeed-bmc-lenovo-hr855xg2.dts | 687 
> +++++++++++++++++++++++
>  2 files changed, 688 insertions(+)
>  create mode 100644 arch/arm/boot/dts/aspeed-bmc-lenovo-hr855xg2.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile 
> index dab2914f..d874777 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -1269,6 +1269,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
>  	aspeed-bmc-facebook-cmm.dtb \
>  	aspeed-bmc-facebook-tiogapass.dtb \
>  	aspeed-bmc-intel-s2600wf.dtb \
> +	aspeed-bmc-lenovo-hr855xg2.dtb \
>  	aspeed-bmc-opp-lanyang.dtb \
>  	aspeed-bmc-opp-palmetto.dtb \
>  	aspeed-bmc-opp-romulus.dtb \
> diff --git a/arch/arm/boot/dts/aspeed-bmc-lenovo-hr855xg2.dts
> b/arch/arm/boot/dts/aspeed-bmc-lenovo-hr855xg2.dts
> new file mode 100644
> index 0000000..d8dbf3a
> --- /dev/null
> +++ b/arch/arm/boot/dts/aspeed-bmc-lenovo-hr855xg2.dts
> @@ -0,0 +1,687 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Device Tree file for Lenovo Hr855xg2 platform
> + *
> + * Copyright (C) 2019-present Lenovo
> + */
> +
> +/dts-v1/;
> +
> +#include "aspeed-g5.dtsi"
> +#include <dt-bindings/gpio/aspeed-gpio.h>
> +
> +/ {
> +	model = "HR855XG2 BMC";
> +	compatible = "lenovo,hr855xg2-bmc", "aspeed,ast2500";
> +
> +	aliases {
> +		i2c14 = &i2c_riser1;
> +		i2c15 = &i2c_riser2;
> +		i2c16 = &i2c_riser3;
> +		i2c17 = &i2c_M2;
> +		i2c18 = &channel_0;
> +		i2c19 = &channel_1;
> +		i2c20 = &channel_2;
> +		i2c21 = &channel_3;
> +	};
> +
> +	chosen {
> +		stdout-path = &uart5;
> +		bootargs = "console=tty0 console=ttyS4,115200 earlyprintk";
> +	};
> +
> +	memory@...00000 {
> +		device_type = "memory";
> +		reg = <0x80000000 0x20000000>;
> +	};
> +
> +	reserved-memory {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges;
> +
> +		flash_memory: region@...00000 {
> +			no-map;
> +			reg = <0x98000000 0x00100000>; /* 1M */
> +		};

We've got a couple of patches on their way upstream for 5.3 that remove the need to reserve memory simply to satisfy the aspeed-lpc-ctrl driver.

If you base the patch on top of Joel's aspeed-5.3-soc tag you can remove this node and the phandle reference to it.

> +
> +		gfx_memory: framebuffer {
> +			size = <0x01000000>;
> +			alignment = <0x01000000>;
> +			compatible = "shared-dma-pool";
> +			reusable;
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		heartbeat {
> +			gpios = <&gpio ASPEED_GPIO(C, 7) GPIO_ACTIVE_LOW>;
> +		};
> +
> +		fault {
> +			gpios = <&gpio ASPEED_GPIO(G, 3) GPIO_ACTIVE_LOW>;
> +		};
> +	};
> +
> +	iio-hwmon {
> +		compatible = "iio-hwmon";
> +		io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>,
> +		<&adc 4>, <&adc 5>, <&adc 6>, <&adc 7>,
> +		<&adc 8>, <&adc 9>, <&adc 10>,<&adc 11>,
> +		<&adc 12>,<&adc 13>,<&adc 14>;
> +	};
> +
> +	iio-hwmon-battery {
> +		compatible = "iio-hwmon";
> +		io-channels = <&adc 15>;
> +	};
> +
> +};
> +
> +&fmc {
> +	status = "okay";
> +	flash@0 {
> +		status = "okay";
> +		m25p,fast-read;
> +		label = "bmc";
> +		spi-max-frequency = <50000000>;
> +#include "openbmc-flash-layout.dtsi"
> +	};
> +};
> +
> +&lpc_ctrl {
> +	status = "okay";
> +	memory-region = <&flash_memory>;

i.e. remove the above.

> +	flash = <&spi1>;
> +};
> +
> +&lpc_snoop {
> +	status = "okay";
> +	snoop-ports = <0x80>;
> +};
> +
> +&uart1 {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_txd1_default
> +			&pinctrl_rxd1_default>;
> +};
> +
> +&uart2 {
> +	/* Rear RS-232 connector */
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_txd2_default
> +			&pinctrl_rxd2_default
> +			&pinctrl_nrts2_default
> +			&pinctrl_ndtr2_default
> +			&pinctrl_ndsr2_default
> +			&pinctrl_ncts2_default
> +			&pinctrl_ndcd2_default
> +			&pinctrl_nri2_default>;
> +};
> +
> +&uart3 {
> +	status = "okay";
> +};
> +
> +&uart5 {
> +	status = "okay";
> +};
> +
> +&ibt {
> +	status = "okay";
> +};
> +
> +&mac0 {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_rmii1_default>;
> +	use-ncsi;
> +};
> +
> +&mac1 {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_rgmii2_default &pinctrl_mdio2_default>; };
> +
> +&adc{
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_adc0_default
> +			&pinctrl_adc1_default
> +			&pinctrl_adc2_default
> +			&pinctrl_adc3_default
> +			&pinctrl_adc4_default
> +			&pinctrl_adc5_default
> +			&pinctrl_adc6_default
> +			&pinctrl_adc7_default
> +			&pinctrl_adc8_default
> +			&pinctrl_adc9_default
> +			&pinctrl_adc10_default
> +			&pinctrl_adc11_default
> +			&pinctrl_adc12_default
> +			&pinctrl_adc13_default
> +			&pinctrl_adc14_default
> +			&pinctrl_adc15_default>;
> +};
> +
> +&peci0 {
> +	status = "okay";
> +
> +	peci-client@30 {
> +		compatible = "intel,peci-client";
> +		reg = <0x30>;
> +	};
> +
> +	peci-client@31 {
> +		compatible = "intel,peci-client";
> +		reg = <0x31>;
> +	};
> +
> +	peci-client@32 {
> +		compatible = "intel,peci-client";
> +		reg = <0x32>;
> +	};
> +
> +	peci-client@33 {
> +		compatible = "intel,peci-client";
> +		reg = <0x33>;
> +	};
> +};
> +
> +&i2c0 {
> +	status = "okay";
> +
> +	i2c-switch@70 {
> +		compatible = "nxp,pca9545";
> +		reg = <0x70>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		i2c_riser1: i2c@0 {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <0>;
> +		};
> +
> +		i2c_riser2: i2c@1 {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <1>;
> +		};
> +
> +		i2c_riser3: i2c@2 {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <2>;
> +		};
> +
> +		i2c_M2: i2c@3 {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <3>;
> +		};
> +	};
> +};
> +
> +&i2c1 {
> +	status = "okay";
> +	bus-frequency = <90000>;
> +	HotSwap@10 {
> +		compatible = "adm1272";
> +		reg = <0x10>;
> +	};
> +
> +	VR@45 {
> +		compatible = "pmbus";
> +		reg = <0x45>;
> +	};
> +};
> +
> +&i2c2 {
> +	status = "okay";
> +};
> +
> +&i2c3 {
> +	status = "okay";
> +	i2c-switch@70 {
> +		compatible = "nxp,pca9546";
> +		reg = <0x70>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		channel_0: i2c@0 {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <0>;
> +		};
> +
> +		channel_1: i2c@1 {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <1>;
> +		};
> +
> +		channel_2: i2c@2 {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <2>;
> +		};
> +
> +		channel_3: i2c@3 {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <3>;
> +		};
> +	};
> +};
> +
> +&i2c4 {
> +	status = "okay";
> +};
> +
> +&i2c5 {
> +	status = "okay";
> +};
> +
> +&i2c6 {
> +	status = "okay";
> +	/* temp1 */
> +	tmp75@49 {
> +		compatible = "national,lm75";
> +		reg = <0x49>;
> +	};
> +
> +	/* temp2 */
> +	tmp75@4d {
> +		compatible = "national,lm75";
> +		reg = <0x4d>;
> +	};
> +
> +	eeprom@54 {
> +		compatible = "atmel,24c256";
> +		reg = <0x54>;
> +		pagesize = <16>;
> +	};
> +};
> +
> +&i2c7 {
> +	status = "okay";
> +};
> +
> +&i2c8 {
> +	status = "okay";
> +};
> +
> +&i2c9 {
> +	status = "okay";
> +};
> +
> +&i2c10 {
> +	status = "okay";
> +};
> +
> +&i2c11 {
> +	status = "okay";
> +};
> +
> +&i2c13 {
> +	status = "okay";
> +};
> +
> +&ehci1 {
> +	status = "okay";
> +};
> +
> +&uhci {
> +	status = "okay";
> +};
> +
> +&gfx {
> +	status = "okay";
> +	memory-region = <&gfx_memory>;
> +};
> +
> +&pwm_tacho {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_pwm0_default
> +	&pinctrl_pwm1_default
> +	&pinctrl_pwm2_default
> +	&pinctrl_pwm3_default
> +	&pinctrl_pwm4_default
> +	&pinctrl_pwm5_default
> +	&pinctrl_pwm6_default
> +	&pinctrl_pwm7_default>;
> +
> +	fan@0 {
> +		reg = <0x00>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x00>;
> +	};
> +
> +	fan@1 {
> +		reg = <0x00>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x01>;
> +	};
> +
> +	fan@2 {
> +		reg = <0x01>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x02>;
> +	};
> +
> +	fan@3 {
> +		reg = <0x01>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x03>;
> +	};
> +
> +	fan@4 {
> +		reg = <0x02>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x04>;
> +	};
> +
> +	fan@5 {
> +		reg = <0x02>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x05>;
> +	};
> +
> +	fan@6 {
> +		reg = <0x03>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x06>;
> +	};
> +
> +	fan@7 {
> +		reg = <0x03>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x07>;
> +	};
> +
> +	fan@8 {
> +		reg = <0x04>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x08>;
> +	};
> +
> +	fan@9 {
> +		reg = <0x04>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x09>;
> +	};
> +
> +	fan@10 {
> +		reg = <0x05>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x0a>;
> +	};
> +
> +	fan@11 {
> +		reg = <0x05>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x0b>;
> +	};
> +
> +	fan@12 {
> +		reg = <0x06>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x0c>;
> +	};
> +
> +	fan@13 {
> +		reg = <0x06>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x0d>;
> +	};
> +
> +	fan@14 {
> +		reg = <0x07>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x0e>;
> +	};
> +
> +	fan@15 {
> +		reg = <0x07>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x0f>;
> +	};
> +
> +	fan@16 {
> +		reg = <0x07>;
> +		aspeed,fan-tach-ch = /bits/ 8 <0x0f>;
> +	};
> +};
> +
> +&gpio {
> +
> +	pin_gpio_a1 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(A, 1) GPIO_ACTIVE_LOW>;
> +		output-high;
> +		line-name = "BMC_EMMC_RST_N";
> +	};
> +
> +	pin_gpio_a3 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(A, 3) GPIO_ACTIVE_LOW>;
> +		output-high;
> +		line-name = "PCH_PWROK_BMC_FPGA";
> +	};
> +
> +	pin_gpio_b5 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(B, 5) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "IRQ_BMC_PCH_SMI_LPC_N";
> +	};
> +
> +	pin_gpio_b7 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(B, 7) GPIO_ACTIVE_LOW>;
> +		output-low;
> +		line-name = "CPU_SM_WP";
> +	};
> +
> +	pin_gpio_e0 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(E, 0) GPIO_ACTIVE_HIGH>;
> +		input;
> +		line-name = "PDB_PSU_SEL";
> +	};
> +
> +	pin_gpio_e2 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(E, 2) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "LOCATOR_LED_N";
> +	};
> +
> +	pin_gpio_e5 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(E, 5) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "FM_BMC_DBP_PRESENT_R1_N";
> +	};
> +
> +	pin_gpio_e6 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(E, 6) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "BMC_ME_SECURITY_OVERRIDE_N";
> +	};
> +
> +	pin_gpio_f0 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(F, 0) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "IRQ_BMC_PCH_NMI_R";
> +	};
> +
> +	pin_gpio_f1 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(F, 1) GPIO_ACTIVE_HIGH>;
> +		input;
> +		line-name = "CPU2_PROCDIS_BMC_N";
> +	};
> +
> +	pin_gpio_f2 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(F, 2) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "RM_THROTTLE_EN_N";
> +	};
> +
> +	pin_gpio_f3 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(F, 3) GPIO_ACTIVE_HIGH>;
> +		output-low;
> +		line-name = "FM_PMBUS_ALERT_B_EN";
> +	};
> +
> +	pin_gpio_f4 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(F, 4) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "BMC_FORCE_NM_THROTTLE_N";
> +	};
> +
> +	pin_gpio_f6 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(F, 6) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "FM_BMC_CPU_PWR_DEBUG_N";
> +	};
> +
> +	pin_gpio_g7 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(G, 7) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "BMC_PCIE_I2C_MUX_RST_N";
> +	};
> +
> +	pin_gpio_h6 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(H, 6) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "FM_BMC_DBP_PRESENT_R2_N";
> +	};
> +
> +	pin_gpio_i3 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(I, 3) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "SPI_BMC_BIOS_WP_N";
> +	};
> +
> +	pin_gpio_j1 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(J, 1) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "BMC_USB_SEL";
> +	};
> +
> +	pin_gpio_j2 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(J, 2) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "PDB_SMB_RST_N";
> +	};
> +
> +	pin_gpio_j3 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(J, 3) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "SPI_BMC_BIOS_HOLD_N";
> +	};
> +
> +	pin_gpio_l0 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(L, 0) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "PDB_FAN_TACH_SEL";
> +	};
> +
> +	pin_gpio_l1 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(L, 1) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "SYS_RESET_BMC_FPGA_N";
> +	};
> +
> +	pin_gpio_l4 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(L, 4) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "FM_EFUSE_FAN_G1_EN";
> +	};
> +
> +	pin_gpio_l5 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(L, 5) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "FM_EFUSE_FAN_G2_EN";
> +	};
> +
> +	pin_gpio_r6 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(R, 6) GPIO_ACTIVE_HIGH>;
> +		input;
> +		line-name = "CPU3_PROCDIS_BMC_N";
> +	};
> +
> +	pin_gpio_r7 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(R, 7) GPIO_ACTIVE_HIGH>;
> +		input;
> +		line-name = "CPU4_PROCDIS_BMC_N";
> +	};
> +
> +	pin_gpio_s1 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(S, 1) GPIO_ACTIVE_HIGH>;
> +		output-low;
> +		line-name = "DBP_SYSPWROK_BMC";
> +	};
> +
> +	pin_gpio_s2 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(S, 2) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "PCH_RST_RSMRST_N";
> +	};
> +
> +	pin_gpio_s6 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(S, 6) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "BMC_HW_STRAP_5";
> +	};
> +
> +	pin_gpio_z3 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(Z, 3) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "FM_BMC_PCH_SCI_LPC_N";
> +	};
> +
> +	pin_gpio_aa0 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(AA, 0) GPIO_ACTIVE_HIGH>;
> +		output-low;
> +		line-name = "FW_PSU_ALERT_EN_N";
> +	};
> +
> +	pin_gpio_aa4 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(AA, 4) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "DBP_CPU_PREQ_N";
> +	};
> +
> +	pin_gpio_ab3 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(AB, 3) GPIO_ACTIVE_HIGH>;
> +		output-low;
> +		line-name = "BMC_WDTRST";
> +	};
> +
> +	pin_gpio_ac6 {
> +		gpio-hog;
> +		gpios = <ASPEED_GPIO(AC, 6) GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "ESPI_BMC_ALERT_N";
> +	};

Just want to confirm that you want the kernel to hog these lines (the consequence is they're unavailable to userspace).

Cheers,

Andrew

> +
> +};
> --
> 2.7.4
> 
>

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