[PATCH 0/2] arm64: dts: renesas: r8a78000: Add MSIOF support

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* [PATCH 0/2] arm64: dts: renesas: r8a78000: Add MSIOF support
@ 2026-09-25  8:53 Geert Uytterhoeven
  2026-09-25  8:53 ` [PATCH 1/2] dt-bindings: clock: renesas,r8a78000-cpg: Add MSIOF clocks Geert Uytterhoeven
  2026-09-25  8:53 ` [PATCH 2/2] arm64: dts: renesas: r8a78000: Add MSIOF nodes Geert Uytterhoeven
  0 siblings, 2 replies; 4+ messages in thread
From: Geert Uytterhoeven @ 2026-09-25  8:53 UTC (permalink / raw)
  To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Stephen Boyd,
	Brian Masney, Jerome Brunet, Kuninori Morimoto, Wolfram Sang,
	Laurent Pinchart, Marek Vasut
  Cc: linux-clk, devicetree, linux-renesas-soc, linux-arm-kernel,
	Geert Uytterhoeven

	Hi all,

This patch series adds DT support for the Clock-Synchronized Serial
Interfaces with FIFO (MSIOF) on the Renesas R-Car X5H (R8A78000) SoC.
I intend to queue these in renesas-devel for v7.4 (the first patch in a
branch shared by (future) driver and DTS source code).

Thanks for your comments!

Geert Uytterhoeven (2):
  dt-bindings: clock: renesas,r8a78000-cpg: Add MSIOF clocks
  arm64: dts: renesas: r8a78000: Add MSIOF nodes

 arch/arm64/boot/dts/renesas/r8a78000.dtsi     | 104 ++++++++++++++++++
 .../dt-bindings/clock/renesas,r8a78000-cpg.h  |   2 +
 2 files changed, 106 insertions(+)

-- 
2.43.0

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

^ permalink raw reply	[flat|nested] 4+ messages in thread

* [PATCH 1/2] dt-bindings: clock: renesas,r8a78000-cpg: Add MSIOF clocks
  2026-09-25  8:53 [PATCH 0/2] arm64: dts: renesas: r8a78000: Add MSIOF support Geert Uytterhoeven
@ 2026-09-25  8:53 ` Geert Uytterhoeven
  2026-09-25  8:53 ` [PATCH 2/2] arm64: dts: renesas: r8a78000: Add MSIOF nodes Geert Uytterhoeven
  1 sibling, 0 replies; 4+ messages in thread
From: Geert Uytterhoeven @ 2026-09-25  8:53 UTC (permalink / raw)
  To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Stephen Boyd,
	Brian Masney, Jerome Brunet, Kuninori Morimoto, Wolfram Sang,
	Laurent Pinchart, Marek Vasut
  Cc: linux-clk, devicetree, linux-renesas-soc, linux-arm-kernel,
	Geert Uytterhoeven

Add definitions for the functional clock parents of the
Clock-Synchronized Serial Interfaces with FIFO (MSIOF) on the Renesas
R-Car X5H (R8A78000) SoC:
  - MSO_SCP_MAIN is the functional clock parent for MSIOF[0-3],
  - MSOCK_PERW_BUS is the functional clock parent for MSIOF[4-7].

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 include/dt-bindings/clock/renesas,r8a78000-cpg.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/dt-bindings/clock/renesas,r8a78000-cpg.h b/include/dt-bindings/clock/renesas,r8a78000-cpg.h
index 7fd09a3fb353d952..14b3885f2d9933a3 100644
--- a/include/dt-bindings/clock/renesas,r8a78000-cpg.h
+++ b/include/dt-bindings/clock/renesas,r8a78000-cpg.h
@@ -10,5 +10,7 @@
 #define R8A78000_CPG_SGASYNCD4_PERW_BUS		0
 #define R8A78000_CPG_SGASYNCD8_PERW_BUS		1
 #define R8A78000_CPG_SGASYNCD16_PERW_BUS	2
+#define R8A78000_CPG_MSO_SCP_MAIN		3
+#define R8A78000_CPG_MSOCK_PERW_BUS		4
 
 #endif /* __DT_BINDINGS_CLOCK_RENESAS_R8A78000_CPG_H__ */
-- 
2.43.0


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* [PATCH 2/2] arm64: dts: renesas: r8a78000: Add MSIOF nodes
  2026-09-25  8:53 [PATCH 0/2] arm64: dts: renesas: r8a78000: Add MSIOF support Geert Uytterhoeven
  2026-09-25  8:53 ` [PATCH 1/2] dt-bindings: clock: renesas,r8a78000-cpg: Add MSIOF clocks Geert Uytterhoeven
@ 2026-09-25  8:53 ` Geert Uytterhoeven
  2026-09-28 11:38   ` Geert Uytterhoeven
  1 sibling, 1 reply; 4+ messages in thread
From: Geert Uytterhoeven @ 2026-09-25  8:53 UTC (permalink / raw)
  To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Stephen Boyd,
	Brian Masney, Jerome Brunet, Kuninori Morimoto, Wolfram Sang,
	Laurent Pinchart, Marek Vasut
  Cc: linux-clk, devicetree, linux-renesas-soc, linux-arm-kernel,
	Geert Uytterhoeven

Add device nodes for the Clock-Synchronized Serial Interfaces with FIFO
(MSIOF) on the Renesas R-Car X5H (R8A78000) SoC.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm64/boot/dts/renesas/r8a78000.dtsi | 104 ++++++++++++++++++++++
 1 file changed, 104 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a78000.dtsi b/arch/arm64/boot/dts/renesas/r8a78000.dtsi
index 9a07753b221541ed..d75a9e43f772f871 100644
--- a/arch/arm64/boot/dts/renesas/r8a78000.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a78000.dtsi
@@ -1000,6 +1000,110 @@ mdlc_aon: system-controller@c1338000 {
 			bootph-all;
 		};
 
+		msiof0: spi@c1700000 {
+			compatible = "renesas,msiof-r8a78000",
+				     "renesas,rcar-gen5-msiof";
+			reg = <0 0xc1700000 0 0x100>;
+			interrupts = <GIC_ESPI 744 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg R8A78000_CPG_MSO_SCP_MAIN>;
+			power-domains = <&mdlc_scp R8A78000_MDLC_PD_SCP 0x50>;
+			resets = <&mdlc_scp 0x50>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		msiof1: spi@c1710000 {
+			compatible = "renesas,msiof-r8a78000",
+				     "renesas,rcar-gen5-msiof";
+			reg = <0 0xc1710000 0 0x100>;
+			interrupts = <GIC_ESPI 745 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg R8A78000_CPG_MSO_SCP_MAIN>;
+			power-domains = <&mdlc_scp R8A78000_MDLC_PD_SCP 0x51>;
+			resets = <&mdlc_scp 0x51>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		msiof2: spi@c1720000 {
+			compatible = "renesas,msiof-r8a78000",
+				     "renesas,rcar-gen5-msiof";
+			reg = <0 0xc1720000 0 0x100>;
+			interrupts = <GIC_ESPI 746 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg R8A78000_CPG_MSO_SCP_MAIN>;
+			power-domains = <&mdlc_scp R8A78000_MDLC_PD_SCP 0x52>;
+			resets = <&mdlc_scp 0x52>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		msiof3: spi@c1730000 {
+			compatible = "renesas,msiof-r8a78000",
+				     "renesas,rcar-gen5-msiof";
+			reg = <0 0xc1730000 0 0x100>;
+			interrupts = <GIC_ESPI 747 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg R8A78000_CPG_MSO_SCP_MAIN>;
+			power-domains = <&mdlc_scp R8A78000_MDLC_PD_SCP 0x53>;
+			resets = <&mdlc_scp 0x53>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		msiof4: spi@c0600000 {
+			compatible = "renesas,msiof-r8a78000",
+				     "renesas,rcar-gen5-msiof";
+			reg = <0 0xc0600000 0 0x100>;
+			interrupts = <GIC_ESPI 18 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg R8A78000_CPG_MSOCK_PERW_BUS>;
+			power-domains = <&mdlc_perw R8A78000_MDLC_PD_APL 0x4f>;
+			resets = <&mdlc_perw 0x4f>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		msiof5: spi@c0608000 {
+			compatible = "renesas,msiof-r8a78000",
+				     "renesas,rcar-gen5-msiof";
+			reg = <0 0xc0608000 0 0x100>;
+			interrupts = <GIC_ESPI 19 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg R8A78000_CPG_MSOCK_PERW_BUS>;
+			power-domains = <&mdlc_perw R8A78000_MDLC_PD_APL 0x50>;
+			resets = <&mdlc_perw 0x50>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		msiof6: spi@c0610000 {
+			compatible = "renesas,msiof-r8a78000",
+				     "renesas,rcar-gen5-msiof";
+			reg = <0 0xc0610000 0 0x100>;
+			interrupts = <GIC_ESPI 20 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg R8A78000_CPG_MSOCK_PERW_BUS>;
+			power-domains = <&mdlc_perw R8A78000_MDLC_PD_APL 0x51>;
+			resets = <&mdlc_perw 0x51>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		msiof7: spi@c0618000 {
+			compatible = "renesas,msiof-r8a78000",
+				     "renesas,rcar-gen5-msiof";
+			reg = <0 0xc0618000 0 0x100>;
+			interrupts = <GIC_ESPI 21 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg R8A78000_CPG_MSOCK_PERW_BUS>;
+			power-domains = <&mdlc_perw R8A78000_MDLC_PD_APL 0x52>;
+			resets = <&mdlc_perw 0x52>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		mdlc_cmnn: system-controller@ca410000 {
 			compatible = "renesas,r8a78000-mdlc";
 			reg = <0 0xca410000 0 0x1000>;
-- 
2.43.0


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH 2/2] arm64: dts: renesas: r8a78000: Add MSIOF nodes
  2026-09-25  8:53 ` [PATCH 2/2] arm64: dts: renesas: r8a78000: Add MSIOF nodes Geert Uytterhoeven
@ 2026-09-28 11:38   ` Geert Uytterhoeven
  0 siblings, 0 replies; 4+ messages in thread
From: Geert Uytterhoeven @ 2026-09-28 11:38 UTC (permalink / raw)
  To: Geert Uytterhoeven
  Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Stephen Boyd,
	Brian Masney, Jerome Brunet, Kuninori Morimoto, Wolfram Sang,
	Laurent Pinchart, Marek Vasut, linux-clk, devicetree,
	linux-renesas-soc, linux-arm-kernel

On Fri, 25 Sept 2026 at 10:53, Geert Uytterhoeven
<geert+renesas@glider.be> wrote:
> Add device nodes for the Clock-Synchronized Serial Interfaces with FIFO
> (MSIOF) on the Renesas R-Car X5H (R8A78000) SoC.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
>  arch/arm64/boot/dts/renesas/r8a78000.dtsi | 104 ++++++++++++++++++++++
>  1 file changed, 104 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/renesas/r8a78000.dtsi b/arch/arm64/boot/dts/renesas/r8a78000.dtsi
> index 9a07753b221541ed..d75a9e43f772f871 100644
> --- a/arch/arm64/boot/dts/renesas/r8a78000.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a78000.dtsi
> @@ -1000,6 +1000,110 @@ mdlc_aon: system-controller@c1338000 {
>                         bootph-all;
>                 };
>
> +               msiof0: spi@c1700000 {

[...[

>                 mdlc_cmnn: system-controller@ca410000 {

Hmm, something went wrong while rebasing.
Obviously I will fix the order while applying.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

^ permalink raw reply	[flat|nested] 4+ messages in thread

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2026-09-25  8:53 ` [PATCH 1/2] dt-bindings: clock: renesas,r8a78000-cpg: Add MSIOF clocks Geert Uytterhoeven
2026-09-25  8:53 ` [PATCH 2/2] arm64: dts: renesas: r8a78000: Add MSIOF nodes Geert Uytterhoeven
2026-09-28 11:38   ` Geert Uytterhoeven

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