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charset="utf-8" From: Lad Prabhakar Document support for the Clock Generator, Module Standby and Software Reset found on the Renesas RZ/N2H (R9A09G087) SoC. This hardware block is similar to the one found on the RZ/T2H SoC. Signed-off-by: Lad Prabhakar Acked-by: Conor Dooley Reviewed-by: Geert Uytterhoeven --- v1->v2: - Updated commit message - Added Acked-by tag --- .../bindings/clock/renesas,cpg-mssr.yaml | 5 +++- .../clock/renesas,r9a09g087-cpg-mssr.h | 28 +++++++++++++++++++ 2 files changed, 32 insertions(+), 1 deletion(-) create mode 100644 include/dt-bindings/clock/renesas,r9a09g087-cpg-mssr.h diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml = b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml index 708ab6bd7d44..bc2fd3761328 100644 --- a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml +++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml @@ -53,6 +53,7 @@ properties: - renesas,r8a779g0-cpg-mssr # R-Car V4H - renesas,r8a779h0-cpg-mssr # R-Car V4M - renesas,r9a09g077-cpg-mssr # RZ/T2H + - renesas,r9a09g087-cpg-mssr # RZ/N2H =20 reg: minItems: 1 @@ -112,7 +113,9 @@ allOf: properties: compatible: contains: - const: renesas,r9a09g077-cpg-mssr + enum: + - renesas,r9a09g077-cpg-mssr + - renesas,r9a09g087-cpg-mssr then: properties: reg: diff --git a/include/dt-bindings/clock/renesas,r9a09g087-cpg-mssr.h b/inclu= de/dt-bindings/clock/renesas,r9a09g087-cpg-mssr.h new file mode 100644 index 000000000000..f28166d6015f --- /dev/null +++ b/include/dt-bindings/clock/renesas,r9a09g087-cpg-mssr.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) + * + * Copyright (C) 2025 Renesas Electronics Corp. + */ + +#ifndef __DT_BINDINGS_CLOCK_RENESAS_R9A09G087_CPG_H__ +#define __DT_BINDINGS_CLOCK_RENESAS_R9A09G087_CPG_H__ + +#include + +/* R9A09G087 CPG Core Clocks */ +#define R9A09G087_CLK_CA55C0 0 +#define R9A09G087_CLK_CA55C1 1 +#define R9A09G087_CLK_CA55C2 2 +#define R9A09G087_CLK_CA55C3 3 +#define R9A09G087_CLK_CA55S 4 +#define R9A09G087_CLK_CR52_CPU0 5 +#define R9A09G087_CLK_CR52_CPU1 6 +#define R9A09G087_CLK_CKIO 7 +#define R9A09G087_CLK_PCLKAH 8 +#define R9A09G087_CLK_PCLKAM 9 +#define R9A09G087_CLK_PCLKAL 10 +#define R9A09G087_CLK_PCLKGPTL 11 +#define R9A09G087_CLK_PCLKH 12 +#define R9A09G087_CLK_PCLKM 13 +#define R9A09G087_CLK_PCLKL 14 + +#endif /* __DT_BINDINGS_CLOCK_RENESAS_R9A09G087_CPG_H__ */ --=20 2.49.0 From nobody Thu Oct 9 13:50:23 2025 Received: from mail-wm1-f53.google.com (mail-wm1-f53.google.com [209.85.128.53]) (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 EB6912E92BC; 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charset="utf-8" From: Lad Prabhakar Add the Peripheral Module Clock L (PCLKL) core clock ID for the RZ/T2H (R9A09G077) SoC. This clock is used by peripherals such as IIC, WDT, and others. Signed-off-by: Lad Prabhakar Reviewed-by: Geert Uytterhoeven --- v1->v2: - New patch to add PCLKL core clock ID. --- include/dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h b/inclu= de/dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h index 1b22fe88dec7..f6e5f62b07c4 100644 --- a/include/dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h +++ b/include/dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h @@ -23,5 +23,6 @@ #define R9A09G077_CLK_PCLKGPTL 11 #define R9A09G077_CLK_PCLKH 12 #define R9A09G077_CLK_PCLKM 13 +#define R9A09G077_CLK_PCLKL 14 =20 #endif /* __DT_BINDINGS_CLOCK_RENESAS_R9A09G077_CPG_H__ */ --=20 2.49.0 From nobody Thu Oct 9 13:50:23 2025 Received: from mail-wm1-f43.google.com (mail-wm1-f43.google.com [209.85.128.43]) (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 2E7C32EE601; 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charset="utf-8" From: Lad Prabhakar Add the Peripheral Module Clock L (PCLKL) for the RZ/T2H (R9A09G077) SoC. PCLKL is sourced from PLL1 and runs at 62.5MHz. It is used by various low-speed peripherals such as IIC and WDT. Also update LAST_DT_CORE_CLK to reflect the addition of PCLKL, ensuring correct enumeration of core clocks exposed to the DT. Signed-off-by: Lad Prabhakar Reviewed-by: Geert Uytterhoeven --- v1->v2: - New patch to add PCLKL core clock. --- drivers/clk/renesas/r9a09g077-cpg.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/clk/renesas/r9a09g077-cpg.c b/drivers/clk/renesas/r9a0= 9g077-cpg.c index 206816a2df23..b83ef933ae0f 100644 --- a/drivers/clk/renesas/r9a09g077-cpg.c +++ b/drivers/clk/renesas/r9a09g077-cpg.c @@ -66,7 +66,7 @@ enum rzt2h_clk_types { =20 enum clk_ids { /* Core Clock Outputs exported to DT */ - LAST_DT_CORE_CLK =3D R9A09G077_CLK_PCLKM, + LAST_DT_CORE_CLK =3D R9A09G077_CLK_PCLKL, =20 /* External Input Clocks */ CLK_EXTAL, @@ -140,6 +140,7 @@ static const struct cpg_core_clk r9a09g077_core_clks[] = __initconst =3D { dtable_1_2), DEF_FIXED("PCLKGPTL", R9A09G077_CLK_PCLKGPTL, CLK_SEL_CLK_PLL1, 2, 1), DEF_FIXED("PCLKM", R9A09G077_CLK_PCLKM, CLK_SEL_CLK_PLL1, 8, 1), + DEF_FIXED("PCLKL", R9A09G077_CLK_PCLKL, CLK_SEL_CLK_PLL1, 16, 1), }; =20 static const struct mssr_mod_clk r9a09g077_mod_clks[] __initconst =3D { --=20 2.49.0 From nobody Thu Oct 9 13:50:23 2025 Received: from mail-wr1-f45.google.com (mail-wr1-f45.google.com [209.85.221.45]) (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 2F5562EF287; 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Tue, 17 Jun 2025 08:58:03 -0700 (PDT) Received: from iku.Home ([2a06:5906:61b:2d00:a081:30f1:e1c7:6f28]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a568a53f79sm14189115f8f.4.2025.06.17.08.58.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Jun 2025 08:58:02 -0700 (PDT) From: Prabhakar X-Google-Original-From: Prabhakar To: Geert Uytterhoeven , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Magnus Damm Cc: linux-renesas-soc@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar , Biju Das , Fabrizio Castro , Lad Prabhakar Subject: [PATCH v2 4/4] clk: renesas: Add CPG/MSSR support to RZ/N2H SoC Date: Tue, 17 Jun 2025 16:57:57 +0100 Message-ID: <20250617155757.149597-5-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250617155757.149597-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20250617155757.149597-1-prabhakar.mahadev-lad.rj@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: Lad Prabhakar Add clock driver support for the Renesas RZ/N2H (R9A09G087) SoC by reusing the existing RZ/T2H (R9A09G077) CPG/MSSR implementation, as both SoCs share the same clock and reset architecture. Signed-off-by: Lad Prabhakar Reviewed-by: Geert Uytterhoeven --- v1->v2: - Updated commit message - Added reviewed-by tags --- drivers/clk/renesas/Kconfig | 5 +++++ drivers/clk/renesas/Makefile | 1 + drivers/clk/renesas/r9a09g077-cpg.c | 1 + drivers/clk/renesas/renesas-cpg-mssr.c | 6 ++++++ 4 files changed, 13 insertions(+) diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig index 45f9ae5b6ef1..6a5a04664990 100644 --- a/drivers/clk/renesas/Kconfig +++ b/drivers/clk/renesas/Kconfig @@ -44,6 +44,7 @@ config CLK_RENESAS select CLK_R9A09G056 if ARCH_R9A09G056 select CLK_R9A09G057 if ARCH_R9A09G057 select CLK_R9A09G077 if ARCH_R9A09G077 + select CLK_R9A09G087 if ARCH_R9A09G087 select CLK_SH73A0 if ARCH_SH73A0 =20 if CLK_RENESAS @@ -213,6 +214,10 @@ config CLK_R9A09G077 bool "RZ/T2H clock support" if COMPILE_TEST select CLK_RENESAS_CPG_MSSR =20 +config CLK_R9A09G087 + bool "RZ/N2H clock support" if COMPILE_TEST + select CLK_RENESAS_CPG_MSSR + config CLK_SH73A0 bool "SH-Mobile AG5 clock support" if COMPILE_TEST select CLK_RENESAS_CPG_MSTP diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile index d8d894a15d24..d28eb276a153 100644 --- a/drivers/clk/renesas/Makefile +++ b/drivers/clk/renesas/Makefile @@ -41,6 +41,7 @@ obj-$(CONFIG_CLK_R9A09G047) +=3D r9a09g047-cpg.o obj-$(CONFIG_CLK_R9A09G056) +=3D r9a09g056-cpg.o obj-$(CONFIG_CLK_R9A09G057) +=3D r9a09g057-cpg.o obj-$(CONFIG_CLK_R9A09G077) +=3D r9a09g077-cpg.o +obj-$(CONFIG_CLK_R9A09G087) +=3D r9a09g077-cpg.o obj-$(CONFIG_CLK_SH73A0) +=3D clk-sh73a0.o =20 # Family diff --git a/drivers/clk/renesas/r9a09g077-cpg.c b/drivers/clk/renesas/r9a0= 9g077-cpg.c index b83ef933ae0f..baf917ff4beb 100644 --- a/drivers/clk/renesas/r9a09g077-cpg.c +++ b/drivers/clk/renesas/r9a09g077-cpg.c @@ -13,6 +13,7 @@ #include =20 #include +#include #include "renesas-cpg-mssr.h" =20 #define RZT2H_REG_BLOCK_SHIFT 11 diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/r= enesas-cpg-mssr.c index 4a5ac9eef9cc..5ff6ee1f7d4b 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.c +++ b/drivers/clk/renesas/renesas-cpg-mssr.c @@ -941,6 +941,12 @@ static const struct of_device_id cpg_mssr_match[] =3D { .compatible =3D "renesas,r9a09g077-cpg-mssr", .data =3D &r9a09g077_cpg_mssr_info, }, +#endif +#ifdef CONFIG_CLK_R9A09G087 + { + .compatible =3D "renesas,r9a09g087-cpg-mssr", + .data =3D &r9a09g077_cpg_mssr_info, + }, #endif { /* sentinel */ } }; --=20 2.49.0