[PATCH 0/2] Add ADC support to Renesas RZ/V2L SoC

[PATCH 0/2] Add ADC support to Renesas RZ/V2L SoC

[Lad Prabhakar]

Hi All,

This patch series adds ADC support to Renesas RZ/V2L SoC.

Note, as the RZ/V2L SMARC EVK uses the common dts by default the
adc will be enabled on the SMARC EVK. Right now the RZG2L_ADC config
is only enabled for ARCH_R9A07G044 SoC once patch [0] hits upstream
the Kconfig dependency will be changed to ARCH_RZG2L so that it can
be enabled on all the compatible SoC's.

[0] https://patchwork.kernel.org/project/linux-renesas-soc/patch/
20220224092114.25737-1-prabhakar.mahadev-lad.rj@bp.renesas.com/

Cheers,
Prabhakar

Lad Prabhakar (2):
  dt-bindings: iio: adc: renesas,rzg2l-adc: Document RZ/V2L SoC
  arm64: dts: renesas: r9a07g054: Fillup the ADC stub node

 .../bindings/iio/adc/renesas,rzg2l-adc.yaml   |  3 +-
 arch/arm64/boot/dts/renesas/r9a07g054.dtsi    | 39 ++++++++++++++++++-
 2 files changed, 40 insertions(+), 2 deletions(-)

-- 
2.17.1

[PATCH 1/2] dt-bindings: iio: adc: renesas,rzg2l-adc: Document RZ/V2L SoC

[Lad Prabhakar]

Document RZ/V2L ADC bindings. RZ/V2L ADC block is identical to one found
on the RZ/G2L SoC. No driver changes are required as generic compatible
string "renesas,rzg2l-adc" will be used as a fallback.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
---
 .../devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml         | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml b/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml
index c80201d6a716..d6c1b9bd5945 100644
--- a/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml
@@ -4,7 +4,7 @@
 $id: http://devicetree.org/schemas/iio/adc/renesas,rzg2l-adc.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Renesas RZ/G2L ADC
+title: Renesas RZ/{G2L,V2L} ADC
 
 maintainers:
   - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
@@ -20,6 +20,7 @@ properties:
     items:
       - enum:
           - renesas,r9a07g044-adc   # RZ/G2{L,LC}
+          - renesas,r9a07g054-adc   # RZ/V2L
       - const: renesas,rzg2l-adc
 
   reg:
-- 
2.17.1

[PATCH 2/2] arm64: dts: renesas: r9a07g054: Fillup the ADC stub node

[Lad Prabhakar]

Fillup the ADC stub node in RZ/V2L (R9A07G054) SoC DTSI.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
---
 arch/arm64/boot/dts/renesas/r9a07g054.dtsi | 39 +++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/renesas/r9a07g054.dtsi b/arch/arm64/boot/dts/renesas/r9a07g054.dtsi
index 5d39e765c291..3ddf0f24071c 100644
--- a/arch/arm64/boot/dts/renesas/r9a07g054.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a07g054.dtsi
@@ -260,8 +260,45 @@
 		};
 
 		adc: adc@10059000 {
+			compatible = "renesas,r9a07g054-adc", "renesas,rzg2l-adc";
 			reg = <0 0x10059000 0 0x400>;
-			/* place holder */
+			interrupts = <GIC_SPI 347 IRQ_TYPE_EDGE_RISING>;
+			clocks = <&cpg CPG_MOD R9A07G054_ADC_ADCLK>,
+				 <&cpg CPG_MOD R9A07G054_ADC_PCLK>;
+			clock-names = "adclk", "pclk";
+			resets = <&cpg R9A07G054_ADC_PRESETN>,
+				 <&cpg R9A07G054_ADC_ADRST_N>;
+			reset-names = "presetn", "adrst-n";
+			power-domains = <&cpg>;
+			status = "disabled";
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			channel@0 {
+				reg = <0>;
+			};
+			channel@1 {
+				reg = <1>;
+			};
+			channel@2 {
+				reg = <2>;
+			};
+			channel@3 {
+				reg = <3>;
+			};
+			channel@4 {
+				reg = <4>;
+			};
+			channel@5 {
+				reg = <5>;
+			};
+			channel@6 {
+				reg = <6>;
+			};
+			channel@7 {
+				reg = <7>;
+			};
 		};
 
 		sbc: spi@10060000 {
-- 
2.17.1

Re: [PATCH 1/2] dt-bindings: iio: adc: renesas,rzg2l-adc: Document RZ/V2L SoC

[Krzysztof Kozlowski]

On 24/02/2022 13:58, Lad Prabhakar wrote:
> Document RZ/V2L ADC bindings. RZ/V2L ADC block is identical to one found
> on the RZ/G2L SoC. No driver changes are required as generic compatible
> string "renesas,rzg2l-adc" will be used as a fallback.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
> ---
>  .../devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml         | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>


Best regards,
Krzysztof

Re: [PATCH 1/2] dt-bindings: iio: adc: renesas,rzg2l-adc: Document RZ/V2L SoC

[Geert Uytterhoeven]

On Thu, Feb 24, 2022 at 1:59 PM Lad Prabhakar
<prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
> Document RZ/V2L ADC bindings. RZ/V2L ADC block is identical to one found
> on the RZ/G2L SoC. No driver changes are required as generic compatible
> string "renesas,rzg2l-adc" will be used as a fallback.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

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

Re: [PATCH 2/2] arm64: dts: renesas: r9a07g054: Fillup the ADC stub node

[Geert Uytterhoeven]

On Thu, Feb 24, 2022 at 1:59 PM Lad Prabhakar
<prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
> Fillup the ADC stub node in RZ/V2L (R9A07G054) SoC DTSI.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v5.19.

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