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Tue, 05 May 2026 00:02:10 -0700 (PDT) From: Biju X-Google-Original-From: Biju To: Geert Uytterhoeven , Magnus Damm , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Biju Das , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar Mahadev Lad , Biju Das Subject: [PATCH 1/4] arm64: dts: renesas: r9a08g046: Add scif{1..5} device nodes Date: Tue, 5 May 2026 08:01:54 +0100 Message-ID: <20260505070206.7932-2-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260505070206.7932-1-biju.das.jz@bp.renesas.com> References: <20260505070206.7932-1-biju.das.jz@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Biju Das Add scif{1..5} device nodes to RZ/G3L ("R9A08G046") SoC DTSI. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven --- arch/arm64/boot/dts/renesas/r9a08g046.dtsi | 90 ++++++++++++++++++++++ 1 file changed, 90 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r9a08g046.dtsi b/arch/arm64/boot/d= ts/renesas/r9a08g046.dtsi index 0cedf5a38291..f0dbd700b538 100644 --- a/arch/arm64/boot/dts/renesas/r9a08g046.dtsi +++ b/arch/arm64/boot/dts/renesas/r9a08g046.dtsi @@ -166,6 +166,96 @@ scif0: serial@100ac000 { status =3D "disabled"; }; =20 + scif1: serial@100ac400 { + compatible =3D "renesas,scif-r9a08g046", "renesas,scif-r9a07g044"; + reg =3D <0 0x100ac400 0 0x400>; + interrupts =3D , + , + , + , + , + ; + interrupt-names =3D "eri", "rxi", "txi", + "bri", "dri", "tei"; + clocks =3D <&cpg CPG_MOD R9A08G046_SCIF1_CLK_PCK>; + clock-names =3D "fck"; + power-domains =3D <&cpg>; + resets =3D <&cpg R9A08G046_SCIF1_RST_SYSTEM_N>; + status =3D "disabled"; + }; + + scif2: serial@1004c000 { + compatible =3D "renesas,scif-r9a08g046", "renesas,scif-r9a07g044"; + reg =3D <0 0x1004c000 0 0x400>; + interrupts =3D , + , + , + , + , + ; + interrupt-names =3D "eri", "rxi", "txi", + "bri", "dri", "tei"; + clocks =3D <&cpg CPG_MOD R9A08G046_SCIF2_CLK_PCK>; + clock-names =3D "fck"; + power-domains =3D <&cpg>; + resets =3D <&cpg R9A08G046_SCIF2_RST_SYSTEM_N>; + status =3D "disabled"; + }; + + scif3: serial@1004c400 { + compatible =3D "renesas,scif-r9a08g046", "renesas,scif-r9a07g044"; + reg =3D <0 0x1004c400 0 0x400>; + interrupts =3D , + , + , + , + , + ; + interrupt-names =3D "eri", "rxi", "txi", + "bri", "dri", "tei"; + clocks =3D <&cpg CPG_MOD R9A08G046_SCIF3_CLK_PCK>; + clock-names =3D "fck"; + power-domains =3D <&cpg>; + resets =3D <&cpg R9A08G046_SCIF3_RST_SYSTEM_N>; + status =3D "disabled"; + }; + + scif4: serial@1004c800 { + compatible =3D "renesas,scif-r9a08g046", "renesas,scif-r9a07g044"; + reg =3D <0 0x1004c800 0 0x400>; + interrupts =3D , + , + , + , + , + ; + interrupt-names =3D "eri", "rxi", "txi", + "bri", "dri", "tei"; + clocks =3D <&cpg CPG_MOD R9A08G046_SCIF4_CLK_PCK>; + clock-names =3D "fck"; + power-domains =3D <&cpg>; + resets =3D <&cpg R9A08G046_SCIF4_RST_SYSTEM_N>; + status =3D "disabled"; + }; + + scif5: serial@1004e000 { + compatible =3D "renesas,scif-r9a08g045", "renesas,scif-r9a07g044"; + reg =3D <0 0x1004e000 0 0x400>; + interrupts =3D , + , + , + , + , + ; + interrupt-names =3D "eri", "rxi", "txi", + "bri", "dri", "tei"; + clocks =3D <&cpg CPG_MOD R9A08G046_SCIF5_CLK_PCK>; + clock-names =3D "fck"; + power-domains =3D <&cpg>; + resets =3D <&cpg R9A08G046_SCIF5_RST_SYSTEM_N>; + status =3D "disabled"; + }; + i2c0: i2c@100ae000 { reg =3D <0 0x100ae000 0 0x400>; #address-cells =3D <1>; --=20 2.43.0 From nobody Sun Jun 14 00:19:15 2026 Received: from mail-wm1-f49.google.com (mail-wm1-f49.google.com [209.85.128.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D5BC43DE432 for ; Tue, 5 May 2026 07:02:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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Tue, 05 May 2026 00:02:12 -0700 (PDT) Received: from localhost.localdomain ([2a00:23c4:a758:8a01:1da3:f63c:84a5:197e]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48a8eb6ffb7sm329473105e9.5.2026.05.05.00.02.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 May 2026 00:02:11 -0700 (PDT) From: Biju X-Google-Original-From: Biju To: Geert Uytterhoeven , Magnus Damm , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Biju Das , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar Mahadev Lad , Biju Das Subject: [PATCH 2/4] arm64: dts: renesas: r9a08g046: Add i2c{0..3} device nodes Date: Tue, 5 May 2026 08:01:55 +0100 Message-ID: <20260505070206.7932-3-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260505070206.7932-1-biju.das.jz@bp.renesas.com> References: <20260505070206.7932-1-biju.das.jz@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Biju Das Add i2c{0..3} device nodes to RZ/G3L ("R9A08G046") SoC DTSI. As the place holders for i2c0 is removed, add the pincontrol device nodes to make it functional on the board DTS. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven --- arch/arm64/boot/dts/renesas/r9a08g046.dtsi | 83 ++++++++++++++++++- .../boot/dts/renesas/rzg3l-smarc-som.dtsi | 11 +++ 2 files changed, 93 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/renesas/r9a08g046.dtsi b/arch/arm64/boot/d= ts/renesas/r9a08g046.dtsi index f0dbd700b538..8abf4ec28df1 100644 --- a/arch/arm64/boot/dts/renesas/r9a08g046.dtsi +++ b/arch/arm64/boot/dts/renesas/r9a08g046.dtsi @@ -257,10 +257,91 @@ scif5: serial@1004e000 { }; =20 i2c0: i2c@100ae000 { + compatible =3D "renesas,riic-r9a08g046", "renesas,riic-r9a09g057"; reg =3D <0 0x100ae000 0 0x400>; + interrupts =3D , + , + , + , + , + , + , + ; + interrupt-names =3D "tei", "ri", "ti", "spi", "sti", + "naki", "ali", "tmoi"; + clocks =3D <&cpg CPG_MOD R9A08G046_I2C0_PCLK>; + clock-frequency =3D <100000>; + resets =3D <&cpg R9A08G046_I2C0_MRST>; + power-domains =3D <&cpg>; #address-cells =3D <1>; #size-cells =3D <0>; - /* placeholder */ + status =3D "disabled"; + }; + + i2c1: i2c@10090400 { + compatible =3D "renesas,riic-r9a08g046", "renesas,riic-r9a09g057"; + reg =3D <0 0x10090400 0 0x400>; + interrupts =3D , + , + , + , + , + , + , + ; + interrupt-names =3D "tei", "ri", "ti", "spi", "sti", + "naki", "ali", "tmoi"; + clocks =3D <&cpg CPG_MOD R9A08G046_I2C1_PCLK>; + clock-frequency =3D <100000>; + resets =3D <&cpg R9A08G046_I2C1_MRST>; + power-domains =3D <&cpg>; + #address-cells =3D <1>; + #size-cells =3D <0>; + status =3D "disabled"; + }; + + i2c2: i2c@10090800 { + compatible =3D "renesas,riic-r9a08g046", "renesas,riic-r9a09g057"; + reg =3D <0 0x10090800 0 0x400>; + interrupts =3D , + , + , + , + , + , + , + ; + interrupt-names =3D "tei", "ri", "ti", "spi", "sti", + "naki", "ali", "tmoi"; + clocks =3D <&cpg CPG_MOD R9A08G046_I2C2_PCLK>; + clock-frequency =3D <100000>; + resets =3D <&cpg R9A08G046_I2C2_MRST>; + power-domains =3D <&cpg>; + #address-cells =3D <1>; + #size-cells =3D <0>; + status =3D "disabled"; + }; + + i2c3: i2c@10090c00 { + compatible =3D "renesas,riic-r9a08g046", "renesas,riic-r9a09g057"; + reg =3D <0 0x10090c00 0 0x400>; + interrupts =3D , + , + , + , + , + , + , + ; + interrupt-names =3D "tei", "ri", "ti", "spi", "sti", + "naki", "ali", "tmoi"; + clocks =3D <&cpg CPG_MOD R9A08G046_I2C3_PCLK>; + clock-frequency =3D <100000>; + resets =3D <&cpg R9A08G046_I2C3_MRST>; + power-domains =3D <&cpg>; + #address-cells =3D <1>; + #size-cells =3D <0>; + status =3D "disabled"; }; =20 canfd: can@100c0000 { diff --git a/arch/arm64/boot/dts/renesas/rzg3l-smarc-som.dtsi b/arch/arm64/= boot/dts/renesas/rzg3l-smarc-som.dtsi index da6f02287944..6d86b88ce104 100644 --- a/arch/arm64/boot/dts/renesas/rzg3l-smarc-som.dtsi +++ b/arch/arm64/boot/dts/renesas/rzg3l-smarc-som.dtsi @@ -11,6 +11,7 @@ / { aliases { ethernet0 =3D ð0; ethernet1 =3D ð1; + i2c0 =3D &i2c0; }; =20 memory@48000000 { @@ -50,6 +51,11 @@ &extal_clk { clock-frequency =3D <24000000>; }; =20 +&i2c0 { + pinctrl-0 =3D <&i2c0_pins>; + pinctrl-names =3D "default"; +}; + &mdio0 { phy0: ethernet-phy@7 { compatible =3D "ethernet-phy-id0022.1640"; 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Tue, 05 May 2026 00:02:12 -0700 (PDT) From: Biju X-Google-Original-From: Biju To: Geert Uytterhoeven , Magnus Damm , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Biju Das , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar Mahadev Lad , Biju Das Subject: [PATCH 3/4] arm64: dts: renesas: r9a08g046l48-smarc: Add gpio keys Date: Tue, 5 May 2026 08:01:56 +0100 Message-ID: <20260505070206.7932-4-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260505070206.7932-1-biju.das.jz@bp.renesas.com> References: <20260505070206.7932-1-biju.das.jz@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Biju Das RZ/G3L SMARC EVK has 3 user buttons called USER_SW1, USER_SW2 and USER_SW3. Instantiate the gpio-keys driver for these buttons by removing place holders and replacing proper pins for the buttons. The USER_SW{1,2,3} configured as wakeup-source, so it can wakeup the system during s2idle. Signed-off-by: Biju Das --- .../boot/dts/renesas/r9a08g046l48-smarc.dts | 26 ++++++++++++++----- .../boot/dts/renesas/rzg3l-smarc-som.dtsi | 17 ++++++++++++ 2 files changed, 37 insertions(+), 6 deletions(-) diff --git a/arch/arm64/boot/dts/renesas/r9a08g046l48-smarc.dts b/arch/arm6= 4/boot/dts/renesas/r9a08g046l48-smarc.dts index 0ae052238b3b..8384cec7f056 100644 --- a/arch/arm64/boot/dts/renesas/r9a08g046l48-smarc.dts +++ b/arch/arm64/boot/dts/renesas/r9a08g046l48-smarc.dts @@ -7,10 +7,18 @@ =20 /dts-v1/; =20 -/* Add place holder to avoid compilation error with renesas-smarc2.dtsi */ -#define KEY_1_GPIO 1 -#define KEY_2_GPIO 2 -#define KEY_3_GPIO 3 +/* Switch selection settings */ +#define RZ_BOOT_MODE3 0 +#define SW_DPI_EN 0 +#define SW_GPIO4 0 + +#define PMOD_GPIO4 0 +#define PMOD_GPIO6 0 +#define PMOD_GPIO7 0 + +#define KEY_1_GPIO RZG3L_GPIO(J, 3) +#define KEY_2_GPIO RZG3L_GPIO(6, 4) +#define KEY_3_GPIO RZG3L_GPIO(6, 5) =20 #include #include @@ -30,11 +38,17 @@ aliases { }; =20 &keys { - status =3D "disabled"; - +#if RZ_BOOT_MODE3 || SW_GPIO4 || PMOD_GPIO4 /delete-node/ key-1; +#endif + +#if SW_DPI_EN || PMOD_GPIO6 /delete-node/ key-2; +#endif + +#if SW_DPI_EN || PMOD_GPIO7 /delete-node/ key-3; +#endif }; =20 &pinctrl { diff --git a/arch/arm64/boot/dts/renesas/rzg3l-smarc-som.dtsi b/arch/arm64/= boot/dts/renesas/rzg3l-smarc-som.dtsi index 6d86b88ce104..bc1178c7484a 100644 --- a/arch/arm64/boot/dts/renesas/rzg3l-smarc-som.dtsi +++ b/arch/arm64/boot/dts/renesas/rzg3l-smarc-som.dtsi @@ -5,6 +5,23 @@ * Copyright (C) 2026 Renesas Electronics Corp. */ =20 +/* + * Please set the below switch position on the SoM and the corresponding m= acro + * on the board DTS: + * + * Switch position SYS.5, Macro SW_DPI_EN: + * 0 - Select multiple SMARC signals active + * 1 - Select LCD + * + * Switch position BOOT.1, Macro RZ_BOOT_MODE3: + * 0 - Select SDIO {CD,IOVS,PWEN} and GPIO4 Active + * 1 - Select JTAG enabled + * + * Switch position SW_GPIO4, Macro SW_GPIO4: + * 0 - Select GPIO4 + * 1 - Select RZ_VBAT_TAMPER + */ + / { compatible =3D "renesas,rzg3l-smarcm", "renesas,r9a08g046l48", "renesas,r= 9a08g046"; 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Tue, 05 May 2026 00:02:13 -0700 (PDT) From: Biju X-Google-Original-From: Biju To: Geert Uytterhoeven , Magnus Damm , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Biju Das , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar Mahadev Lad , Biju Das Subject: [PATCH 4/4] arm64: dts: renesas: r9a08g046l48-smarc: Enable I2C{2,3} devices Date: Tue, 5 May 2026 08:01:57 +0100 Message-ID: <20260505070206.7932-5-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260505070206.7932-1-biju.das.jz@bp.renesas.com> References: <20260505070206.7932-1-biju.das.jz@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Biju Das Enable I2C{2,3} on RZ/G3L SMARC EVK board. The I2C3 is enabled by setting SW SYS.2 to OFF position. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven --- .../boot/dts/renesas/r9a08g046l48-smarc.dts | 29 +++++++++++++++++++ .../boot/dts/renesas/rzg3l-smarc-som.dtsi | 4 +++ 2 files changed, 33 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r9a08g046l48-smarc.dts b/arch/arm6= 4/boot/dts/renesas/r9a08g046l48-smarc.dts index 8384cec7f056..9752d9d6a59c 100644 --- a/arch/arm64/boot/dts/renesas/r9a08g046l48-smarc.dts +++ b/arch/arm64/boot/dts/renesas/r9a08g046l48-smarc.dts @@ -11,6 +11,7 @@ #define RZ_BOOT_MODE3 0 #define SW_DPI_EN 0 #define SW_GPIO4 0 +#define SW_I3C_EN 0 =20 #define PMOD_GPIO4 0 #define PMOD_GPIO6 0 @@ -33,10 +34,28 @@ / { "renesas,r9a08g046l48", "renesas,r9a08g046"; =20 aliases { + i2c2 =3D &i2c2; + i2c3 =3D &i2c3; serial3 =3D &scif0; }; }; =20 +&i2c2 { + pinctrl-0 =3D <&i2c2_pins>; + pinctrl-names =3D "default"; + + status =3D "okay"; +}; + +#if !SW_I3C_EN +&i2c3 { + pinctrl-0 =3D <&i2c3_pins>; + pinctrl-names =3D "default"; + + status =3D "okay"; +}; +#endif + &keys { #if RZ_BOOT_MODE3 || SW_GPIO4 || PMOD_GPIO4 /delete-node/ key-1; @@ -52,6 +71,16 @@ &keys { }; =20 &pinctrl { + i2c2_pins: i2c2 { + pinmux =3D , /* RIIC2_SCL */ + ; /* RIIC2_SDA */ + }; + + i2c3_pins: i2c3 { + pinmux =3D , /* RIIC3_SCL */ + ; /* RIIC3_SDA */ + }; + scif0_pins: scif0 { pins =3D "SCIF0_TXD", "SCIF0_RXD"; power-source =3D <1800>; diff --git a/arch/arm64/boot/dts/renesas/rzg3l-smarc-som.dtsi b/arch/arm64/= boot/dts/renesas/rzg3l-smarc-som.dtsi index bc1178c7484a..fb868ea99b7f 100644 --- a/arch/arm64/boot/dts/renesas/rzg3l-smarc-som.dtsi +++ b/arch/arm64/boot/dts/renesas/rzg3l-smarc-som.dtsi @@ -9,6 +9,10 @@ * Please set the below switch position on the SoM and the corresponding m= acro * on the board DTS: * + * Switch position SYS.2, Macro SW_I3C_EN: + * 0 - SMARC_I2C_GP is enabled + * 1 - I3C is enabled + * * Switch position SYS.5, Macro SW_DPI_EN: * 0 - Select multiple SMARC signals active * 1 - Select LCD --=20 2.43.0