[v1,0/2] MMC: add NPCM SDHCI driver support

This patch set adds SDHCI support for the Nuvoton NPCM Baseboard 
Management Controller (BMC).

The NPCM SDHCI driver tested on NPCM750 and NPCM845 EVB.

Tomer Maimon (2):
  dt-bindings: mmc: npcm,sdhci: Document NPCM SDHCI controller
  mmc: sdhci-npcm: Add NPCM SDHCI driver

 .../devicetree/bindings/mmc/npcm,sdhci.yaml   | 47 +++++++++++
 drivers/mmc/host/Kconfig                      |  8 ++
 drivers/mmc/host/Makefile                     |  1 +
 drivers/mmc/host/sdhci-npcm.c                 | 81 +++++++++++++++++++
 4 files changed, 137 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mmc/npcm,sdhci.yaml
 create mode 100644 drivers/mmc/host/sdhci-npcm.c

On Wed, Nov 30, 2022 at 05:08:56PM +0200, Tomer Maimon wrote:
> Add binding for Nuvoton NPCM SDHCI controller.
> 
> Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
> ---
>  .../devicetree/bindings/mmc/npcm,sdhci.yaml   | 47 +++++++++++++++++++
>  1 file changed, 47 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mmc/npcm,sdhci.yaml
> 
> diff --git a/Documentation/devicetree/bindings/mmc/npcm,sdhci.yaml b/Documentation/devicetree/bindings/mmc/npcm,sdhci.yaml
> new file mode 100644
> index 000000000000..38409272807a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mmc/npcm,sdhci.yaml
> @@ -0,0 +1,47 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mmc/npcm,sdhci.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NPCM SDHCI Controller
> +
> +maintainers:
> +  - Tomer Maimon <tmaimon77@gmail.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - nuvoton,npcm750-sdhci
> +      - nuvoton,npcm845-sdhci
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +patternProperties:
> +  "^sdhci@[0-9a-f]+$":
> +    type: object

sdhci is a child node of the nuvoton,npcm750-sdhci node?

> +    $ref: mmc-controller.yaml

I think you want:

allOf:
  - $ref: mmc-controller.yaml#

And then you will have some errors in the example to fix.

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    sdhci0: sdhci@f0840000 {

Drop unused labels.

Node name should be 'mmc'

> +      compatible = "nuvoton,npcm750-sdhci";

Indent by 4 spaces.

> +      reg = <0xf0840000 0x200>;
> +      interrupts = <0 27 4>;
> +      clocks = <&clk 4>;
> +    };
> -- 
> 2.33.0
> 
>

Hi Rob,

Thanks for your comments.

Your comments will be addressed next version.

On Fri, 2 Dec 2022 at 01:49, Rob Herring <robh@kernel.org> wrote:
>
> On Wed, Nov 30, 2022 at 05:08:56PM +0200, Tomer Maimon wrote:
> > Add binding for Nuvoton NPCM SDHCI controller.
> >
> > Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
> > ---
> >  .../devicetree/bindings/mmc/npcm,sdhci.yaml   | 47 +++++++++++++++++++
> >  1 file changed, 47 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/mmc/npcm,sdhci.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/mmc/npcm,sdhci.yaml b/Documentation/devicetree/bindings/mmc/npcm,sdhci.yaml
> > new file mode 100644
> > index 000000000000..38409272807a
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mmc/npcm,sdhci.yaml
> > @@ -0,0 +1,47 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/mmc/npcm,sdhci.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: NPCM SDHCI Controller
> > +
> > +maintainers:
> > +  - Tomer Maimon <tmaimon77@gmail.com>
> > +
> > +properties:
> > +  compatible:
> > +    enum:
> > +      - nuvoton,npcm750-sdhci
> > +      - nuvoton,npcm845-sdhci
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    maxItems: 1
> > +
> > +patternProperties:
> > +  "^sdhci@[0-9a-f]+$":
> > +    type: object
>
> sdhci is a child node of the nuvoton,npcm750-sdhci node?
No, will be removed
>
> > +    $ref: mmc-controller.yaml
>
> I think you want:
>
> allOf:
>   - $ref: mmc-controller.yaml#
>
> And then you will have some errors in the example to fix.
>
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - interrupts
> > +  - clocks
> > +
> > +unevaluatedProperties: false
> > +
> > +examples:
> > +  - |
> > +    sdhci0: sdhci@f0840000 {
>
> Drop unused labels.
>
> Node name should be 'mmc'
>
> > +      compatible = "nuvoton,npcm750-sdhci";
>
> Indent by 4 spaces.
>
> > +      reg = <0xf0840000 0x200>;
> > +      interrupts = <0 27 4>;
> > +      clocks = <&clk 4>;
> > +    };
> > --
> > 2.33.0
> >
> >

Best regards,

Tomer