linux-kernel - Re: [PATCH v2 3/3] arm64: dts: blaize-blzp1600: Enable GPIO support

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Message-ID: <0aecfa4c-f00c-4914-8ca1-d54c41b3a948@blaize.com>
Date: Thu, 24 Apr 2025 14:55:30 +0100
From: Nikolaos Pasaloukos <nikolaos.pasaloukos@...ize.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        James Cowgill
 <james.cowgill@...ize.com>,
        Matt Redfearn <matt.redfearn@...ize.com>,
        Neil Jones <neil.jones@...ize.com>,
        Linus Walleij
 <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Matthew Redfearn <matthew.redfearn@...ize.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 3/3] arm64: dts: blaize-blzp1600: Enable GPIO support

On 27/03/2025 11:26, Nikolaos Pasaloukos wrote:

> Blaize BLZP1600 uses the custom silicon provided from
> VeriSilicon to add GPIO support.
> This interface is used to control signals on many other
> peripherals, such as Ethernet, USB, SD and eMMC.
>
> Signed-off-by: Nikolaos Pasaloukos <nikolaos.pasaloukos@...ize.com>
> ---
>   arch/arm64/boot/dts/blaize/blaize-blzp1600-cb2.dts | 36 ++++++++++++++++++++++
>   arch/arm64/boot/dts/blaize/blaize-blzp1600.dtsi    | 12 ++++++++
>   2 files changed, 48 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/blaize/blaize-blzp1600-cb2.dts b/arch/arm64/boot/dts/blaize/blaize-blzp1600-cb2.dts
> index 7e3cef2ed3522e202487e799b2021cd45398e006..fb5415eb347a028fc65090027a4c4fc89c8280f5 100644
> --- a/arch/arm64/boot/dts/blaize/blaize-blzp1600-cb2.dts
> +++ b/arch/arm64/boot/dts/blaize/blaize-blzp1600-cb2.dts
> @@ -81,3 +81,39 @@ gpio_expander_m2: gpio@75 {
>   				  "UART1_TO_RSP";	/* GPIO_15 */
>   	};
>   };
> +
> +&gpio0 {
> +	status = "okay";
> +	gpio-line-names = "PERST_N",		/* GPIO_0 */
> +			  "LM96063_ALERT_N",	/* GPIO_1 */
> +			  "INA3221_PV",		/* GPIO_2 */
> +			  "INA3221_CRIT",	/* GPIO_3 */
> +			  "INA3221_WARN",	/* GPIO_4 */
> +			  "INA3221_TC",		/* GPIO_5 */
> +			  "QSPI0_RST_N",	/* GPIO_6 */
> +			  "LM96063_TCRIT_N",	/* GPIO_7 */
> +			  "DSI_TCH_INT",	/* GPIO_8 */
> +			  "DSI_RST",		/* GPIO_9 */
> +			  "DSI_BL",		/* GPIO_10 */
> +			  "DSI_INT",		/* GPIO_11 */
> +			  "ETH_RST",		/* GPIO_12 */
> +			  "CSI0_RST",		/* GPIO_13 */
> +			  "CSI0_PWDN",		/* GPIO_14 */
> +			  "CSI1_RST",		/* GPIO_15 */
> +			  "CSI1_PWDN",		/* GPIO_16 */
> +			  "CSI2_RST",		/* GPIO_17 */
> +			  "CSI2_PWDN",		/* GPIO_18 */
> +			  "CSI3_RST",		/* GPIO_19 */
> +			  "CSI3_PWDN",		/* GPIO_20 */
> +			  "ADAC_RST",		/* GPIO_21 */
> +			  "SD_SW_VDD",		/* GPIO_22 */
> +			  "SD_PON_VDD",		/* GPIO_23 */
> +			  "GPIO_EXP_INT",	/* GPIO_24 */
> +			  "BOARD_ID_0",		/* GPIO_25 */
> +			  "SDIO1_SW_VDD",	/* GPIO_26 */
> +			  "SDIO1_PON_VDD",	/* GPIO_27 */
> +			  "SDIO2_SW_VDD",	/* GPIO_28 */
> +			  "SDIO2_PON_VDD",	/* GPIO_29 */
> +			  "BOARD_ID_1",		/* GPIO_30 */
> +			  "BOARD_ID_2";		/* GPIO_31 */
> +};
> diff --git a/arch/arm64/boot/dts/blaize/blaize-blzp1600.dtsi b/arch/arm64/boot/dts/blaize/blaize-blzp1600.dtsi
> index 7d399e6a532f5b24385dd837be965be771c7d24c..5a6c882b2f57d57d304869dee877c996cbabb712 100644
> --- a/arch/arm64/boot/dts/blaize/blaize-blzp1600.dtsi
> +++ b/arch/arm64/boot/dts/blaize/blaize-blzp1600.dtsi
> @@ -120,6 +120,18 @@ gic: interrupt-controller@...000 {
>   						 IRQ_TYPE_LEVEL_LOW)>;
>   		};
>   
> +		gpio0: gpio@...000 {
> +			compatible = "blaize,blzp1600-gpio";
> +			reg = <0x4c0000 0x1000>;
> +			gpio-controller;
> +			#gpio-cells = <2>;
> +			ngpios = <32>;
> +			interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-controller;
> +			#interrupt-cells = <2>;
> +			status = "disabled";
> +		};
> +
>   		uart0: serial@...000 {
>   			compatible = "ns16550a";
>   			reg = <0x4d0000 0x1000>;
>
Hi,

Since the rest of the patches have already been accepted, should I wait for a review
here before I send this patch to the SoC list?

Kind regards,
Nikolaos Pasaloukos