* [PATCH v2] dt-bindings: mmc: renesas,sdhi: Document RZ/T2H and RZ/N2H support
@ 2025-06-17 16:49 Prabhakar
2025-06-19 13:53 ` Geert Uytterhoeven
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Prabhakar @ 2025-06-17 16:49 UTC (permalink / raw)
To: Geert Uytterhoeven, Ulf Hansson, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Magnus Damm, Wolfram Sang
Cc: linux-mmc, devicetree, linux-kernel, linux-renesas-soc, Prabhakar,
Biju Das, Fabrizio Castro, Lad Prabhakar
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Add SDHI bindings for the Renesas RZ/T2H (a.k.a R9A09G077) and RZ/N2H
(a.k.a R9A09G087) SoCs. Use `renesas,sdhi-r9a09g057` as a fallback since
the SD/MMC block on these SoCs is identical to the one on RZ/V2H(P),
allowing reuse of the existing driver without modifications.
Update the binding schema to reflect differences: unlike RZ/V2H(P),
RZ/T2H and RZ/N2H do not require the `resets` property and use only a
two clocks instead of four.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
v1->v2:
- Added the high speed clock to the clocks list.
---
.../devicetree/bindings/mmc/renesas,sdhi.yaml | 85 ++++++++++++-------
1 file changed, 53 insertions(+), 32 deletions(-)
diff --git a/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml b/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml
index 7563623876fc..ba15ccbda61a 100644
--- a/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml
+++ b/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml
@@ -72,6 +72,8 @@ properties:
- enum:
- renesas,sdhi-r9a09g047 # RZ/G3E
- renesas,sdhi-r9a09g056 # RZ/V2N
+ - renesas,sdhi-r9a09g077 # RZ/T2H
+ - renesas,sdhi-r9a09g087 # RZ/N2H
- const: renesas,sdhi-r9a09g057 # RZ/V2H(P)
reg:
@@ -129,59 +131,78 @@ allOf:
compatible:
contains:
enum:
- - renesas,sdhi-r9a09g057
- - renesas,rzg2l-sdhi
+ - renesas,sdhi-r9a09g077
+ - renesas,sdhi-r9a09g087
then:
properties:
+ resets: false
clocks:
items:
- - description: IMCLK, SDHI channel main clock1.
- - description: CLK_HS, SDHI channel High speed clock which operates
- 4 times that of SDHI channel main clock1.
- - description: IMCLK2, SDHI channel main clock2. When this clock is
- turned off, external SD card detection cannot be
- detected.
- - description: ACLK, SDHI channel bus clock.
+ - description: ACLK, IMCLK, SDHI channel bus and main clocks.
+ - description: CLK_HS, SDHI channel High speed clock.
clock-names:
items:
- - const: core
- - const: clkh
- - const: cd
- const: aclk
- required:
- - clock-names
- - resets
+ - const: clkh
else:
if:
properties:
compatible:
contains:
enum:
- - renesas,rcar-gen2-sdhi
- - renesas,rcar-gen3-sdhi
- - renesas,rcar-gen4-sdhi
+ - renesas,sdhi-r9a09g057
+ - renesas,rzg2l-sdhi
then:
properties:
clocks:
- minItems: 1
- maxItems: 3
- clock-names:
- minItems: 1
- uniqueItems: true
items:
- - const: core
- - enum: [ clkh, cd ]
- - const: cd
- else:
- properties:
- clocks:
- minItems: 1
- maxItems: 2
+ - description: IMCLK, SDHI channel main clock1.
+ - description: CLK_HS, SDHI channel High speed clock which operates
+ 4 times that of SDHI channel main clock1.
+ - description: IMCLK2, SDHI channel main clock2. When this clock is
+ turned off, external SD card detection cannot be
+ detected.
+ - description: ACLK, SDHI channel bus clock.
clock-names:
- minItems: 1
items:
- const: core
+ - const: clkh
- const: cd
+ - const: aclk
+ required:
+ - clock-names
+ - resets
+ else:
+ if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,rcar-gen2-sdhi
+ - renesas,rcar-gen3-sdhi
+ - renesas,rcar-gen4-sdhi
+ then:
+ properties:
+ clocks:
+ minItems: 1
+ maxItems: 3
+ clock-names:
+ minItems: 1
+ uniqueItems: true
+ items:
+ - const: core
+ - enum: [ clkh, cd ]
+ - const: cd
+ else:
+ properties:
+ clocks:
+ minItems: 1
+ maxItems: 2
+ clock-names:
+ minItems: 1
+ items:
+ - const: core
+ - const: cd
- if:
properties:
--
2.49.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH v2] dt-bindings: mmc: renesas,sdhi: Document RZ/T2H and RZ/N2H support
2025-06-17 16:49 [PATCH v2] dt-bindings: mmc: renesas,sdhi: Document RZ/T2H and RZ/N2H support Prabhakar
@ 2025-06-19 13:53 ` Geert Uytterhoeven
2025-06-27 19:32 ` Rob Herring (Arm)
2025-07-03 12:19 ` Ulf Hansson
2 siblings, 0 replies; 4+ messages in thread
From: Geert Uytterhoeven @ 2025-06-19 13:53 UTC (permalink / raw)
To: Prabhakar
Cc: Ulf Hansson, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Magnus Damm, Wolfram Sang, linux-mmc, devicetree, linux-kernel,
linux-renesas-soc, Biju Das, Fabrizio Castro, Lad Prabhakar
On Tue, 17 Jun 2025 at 18:49, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Add SDHI bindings for the Renesas RZ/T2H (a.k.a R9A09G077) and RZ/N2H
> (a.k.a R9A09G087) SoCs. Use `renesas,sdhi-r9a09g057` as a fallback since
> the SD/MMC block on these SoCs is identical to the one on RZ/V2H(P),
> allowing reuse of the existing driver without modifications.
>
> Update the binding schema to reflect differences: unlike RZ/V2H(P),
> RZ/T2H and RZ/N2H do not require the `resets` property and use only a
> two clocks instead of four.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
> v1->v2:
> - Added the high speed clock to the clocks list.
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
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH v2] dt-bindings: mmc: renesas,sdhi: Document RZ/T2H and RZ/N2H support
2025-06-17 16:49 [PATCH v2] dt-bindings: mmc: renesas,sdhi: Document RZ/T2H and RZ/N2H support Prabhakar
2025-06-19 13:53 ` Geert Uytterhoeven
@ 2025-06-27 19:32 ` Rob Herring (Arm)
2025-07-03 12:19 ` Ulf Hansson
2 siblings, 0 replies; 4+ messages in thread
From: Rob Herring (Arm) @ 2025-06-27 19:32 UTC (permalink / raw)
To: Prabhakar
Cc: Conor Dooley, Fabrizio Castro, Wolfram Sang, linux-renesas-soc,
devicetree, Ulf Hansson, Magnus Damm, Biju Das, linux-kernel,
Krzysztof Kozlowski, Geert Uytterhoeven, linux-mmc, Lad Prabhakar
On Tue, 17 Jun 2025 17:49:14 +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Add SDHI bindings for the Renesas RZ/T2H (a.k.a R9A09G077) and RZ/N2H
> (a.k.a R9A09G087) SoCs. Use `renesas,sdhi-r9a09g057` as a fallback since
> the SD/MMC block on these SoCs is identical to the one on RZ/V2H(P),
> allowing reuse of the existing driver without modifications.
>
> Update the binding schema to reflect differences: unlike RZ/V2H(P),
> RZ/T2H and RZ/N2H do not require the `resets` property and use only a
> two clocks instead of four.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
> v1->v2:
> - Added the high speed clock to the clocks list.
> ---
> .../devicetree/bindings/mmc/renesas,sdhi.yaml | 85 ++++++++++++-------
> 1 file changed, 53 insertions(+), 32 deletions(-)
>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH v2] dt-bindings: mmc: renesas,sdhi: Document RZ/T2H and RZ/N2H support
2025-06-17 16:49 [PATCH v2] dt-bindings: mmc: renesas,sdhi: Document RZ/T2H and RZ/N2H support Prabhakar
2025-06-19 13:53 ` Geert Uytterhoeven
2025-06-27 19:32 ` Rob Herring (Arm)
@ 2025-07-03 12:19 ` Ulf Hansson
2 siblings, 0 replies; 4+ messages in thread
From: Ulf Hansson @ 2025-07-03 12:19 UTC (permalink / raw)
To: Prabhakar
Cc: Geert Uytterhoeven, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Magnus Damm, Wolfram Sang, linux-mmc, devicetree,
linux-kernel, linux-renesas-soc, Biju Das, Fabrizio Castro,
Lad Prabhakar
On Tue, 17 Jun 2025 at 18:49, Prabhakar <prabhakar.csengg@gmail.com> wrote:
>
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Add SDHI bindings for the Renesas RZ/T2H (a.k.a R9A09G077) and RZ/N2H
> (a.k.a R9A09G087) SoCs. Use `renesas,sdhi-r9a09g057` as a fallback since
> the SD/MMC block on these SoCs is identical to the one on RZ/V2H(P),
> allowing reuse of the existing driver without modifications.
>
> Update the binding schema to reflect differences: unlike RZ/V2H(P),
> RZ/T2H and RZ/N2H do not require the `resets` property and use only a
> two clocks instead of four.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Applied for next, thanks!
Kind regards
Uffe
> ---
> v1->v2:
> - Added the high speed clock to the clocks list.
> ---
> .../devicetree/bindings/mmc/renesas,sdhi.yaml | 85 ++++++++++++-------
> 1 file changed, 53 insertions(+), 32 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml b/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml
> index 7563623876fc..ba15ccbda61a 100644
> --- a/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml
> +++ b/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml
> @@ -72,6 +72,8 @@ properties:
> - enum:
> - renesas,sdhi-r9a09g047 # RZ/G3E
> - renesas,sdhi-r9a09g056 # RZ/V2N
> + - renesas,sdhi-r9a09g077 # RZ/T2H
> + - renesas,sdhi-r9a09g087 # RZ/N2H
> - const: renesas,sdhi-r9a09g057 # RZ/V2H(P)
>
> reg:
> @@ -129,59 +131,78 @@ allOf:
> compatible:
> contains:
> enum:
> - - renesas,sdhi-r9a09g057
> - - renesas,rzg2l-sdhi
> + - renesas,sdhi-r9a09g077
> + - renesas,sdhi-r9a09g087
> then:
> properties:
> + resets: false
> clocks:
> items:
> - - description: IMCLK, SDHI channel main clock1.
> - - description: CLK_HS, SDHI channel High speed clock which operates
> - 4 times that of SDHI channel main clock1.
> - - description: IMCLK2, SDHI channel main clock2. When this clock is
> - turned off, external SD card detection cannot be
> - detected.
> - - description: ACLK, SDHI channel bus clock.
> + - description: ACLK, IMCLK, SDHI channel bus and main clocks.
> + - description: CLK_HS, SDHI channel High speed clock.
> clock-names:
> items:
> - - const: core
> - - const: clkh
> - - const: cd
> - const: aclk
> - required:
> - - clock-names
> - - resets
> + - const: clkh
> else:
> if:
> properties:
> compatible:
> contains:
> enum:
> - - renesas,rcar-gen2-sdhi
> - - renesas,rcar-gen3-sdhi
> - - renesas,rcar-gen4-sdhi
> + - renesas,sdhi-r9a09g057
> + - renesas,rzg2l-sdhi
> then:
> properties:
> clocks:
> - minItems: 1
> - maxItems: 3
> - clock-names:
> - minItems: 1
> - uniqueItems: true
> items:
> - - const: core
> - - enum: [ clkh, cd ]
> - - const: cd
> - else:
> - properties:
> - clocks:
> - minItems: 1
> - maxItems: 2
> + - description: IMCLK, SDHI channel main clock1.
> + - description: CLK_HS, SDHI channel High speed clock which operates
> + 4 times that of SDHI channel main clock1.
> + - description: IMCLK2, SDHI channel main clock2. When this clock is
> + turned off, external SD card detection cannot be
> + detected.
> + - description: ACLK, SDHI channel bus clock.
> clock-names:
> - minItems: 1
> items:
> - const: core
> + - const: clkh
> - const: cd
> + - const: aclk
> + required:
> + - clock-names
> + - resets
> + else:
> + if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - renesas,rcar-gen2-sdhi
> + - renesas,rcar-gen3-sdhi
> + - renesas,rcar-gen4-sdhi
> + then:
> + properties:
> + clocks:
> + minItems: 1
> + maxItems: 3
> + clock-names:
> + minItems: 1
> + uniqueItems: true
> + items:
> + - const: core
> + - enum: [ clkh, cd ]
> + - const: cd
> + else:
> + properties:
> + clocks:
> + minItems: 1
> + maxItems: 2
> + clock-names:
> + minItems: 1
> + items:
> + - const: core
> + - const: cd
>
> - if:
> properties:
> --
> 2.49.0
>
^ permalink raw reply [flat|nested] 4+ messages in thread
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2025-06-17 16:49 [PATCH v2] dt-bindings: mmc: renesas,sdhi: Document RZ/T2H and RZ/N2H support Prabhakar
2025-06-19 13:53 ` Geert Uytterhoeven
2025-06-27 19:32 ` Rob Herring (Arm)
2025-07-03 12:19 ` Ulf Hansson
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