Re: [PATCH v3 2/2] dt-bindings: mmc: ti,omap2430-sdhci: convert to DT schema

[Charan Pedumuru <charan.pedumuru@gmail.com>]

On 15-10-2025 18:41, Rob Herring wrote:
> On Sat, Oct 11, 2025 at 08:40:24AM +0000, Charan Pedumuru wrote:
>> Convert TI OMAP SDHCI Controller binding to YAML format.
>> Changes during Conversion:
>> - Define new properties like "clocks", "clock-names",
>>   "ti,needs-special-reset", "ti,needs-special-hs-handling",
>>   "pbias-supply", "cap-mmc-dual-data-rate" and "power-domains" to
>>   resolve dtb_check errors.
>> - Remove "pinctrl-names" and "pinctrl-<n>"
>>   from required as they are not necessary for all DTS files.
>> - Remove "ti,hwmods" property entirely from the YAML as the
>>   DTS doesn't contain this property for the given compatibles and the
>>   text binding is misleading.
>> - Add "clocks", "clock-names", "max-frequency" and "ti,needs-special-reset"
>>   to the required properties based on the compatible and the text binding
>>   doesn't mention these properties as required.
>> - Add missing strings like "default-rev11", "sdr12-rev11", "sdr25-rev11",
>>   "hs-rev11", "sdr25-rev11" and "sleep" to pinctrl-names string array
>>   to resolve errors detected by dtb_check.
>>
>> Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
>> ---
>>  .../devicetree/bindings/mmc/sdhci-omap.txt         |  43 -----
>>  .../devicetree/bindings/mmc/ti,omap2430-sdhci.yaml | 202 +++++++++++++++++++++
>>  2 files changed, 202 insertions(+), 43 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt
>> deleted file mode 100644
>> index f91e341e6b36c410275e6f993dd08400be3fc1f8..0000000000000000000000000000000000000000
>> --- a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt
>> +++ /dev/null
>> @@ -1,43 +0,0 @@
>> -* TI OMAP SDHCI Controller
>> -
>> -Refer to mmc.txt for standard MMC bindings.
>> -
>> -For UHS devices which require tuning, the device tree should have a "cpu_thermal" node which maps to the appropriate thermal zone. This is used to get the temperature of the zone during tuning.
>> -
>> -Required properties:
>> -- compatible: Should be "ti,omap2430-sdhci" for omap2430 controllers
>> -	      Should be "ti,omap3-sdhci" for omap3 controllers
>> -	      Should be "ti,omap4-sdhci" for omap4 and ti81 controllers
>> -	      Should be "ti,omap5-sdhci" for omap5 controllers
>> -	      Should be "ti,dra7-sdhci" for DRA7 and DRA72 controllers
>> -	      Should be "ti,k2g-sdhci" for K2G
>> -	      Should be "ti,am335-sdhci" for am335x controllers
>> -	      Should be "ti,am437-sdhci" for am437x controllers
>> -- ti,hwmods: Must be "mmc<n>", <n> is controller instance starting 1
>> -	     (Not required for K2G).
>> -- pinctrl-names: Should be subset of "default", "hs", "sdr12", "sdr25", "sdr50",
>> -		 "ddr50-rev11", "sdr104-rev11", "ddr50", "sdr104",
>> -		 "ddr_1_8v-rev11", "ddr_1_8v" or "ddr_3_3v", "hs200_1_8v-rev11",
>> -		 "hs200_1_8v",
>> -- pinctrl-<n> : Pinctrl states as described in bindings/pinctrl/pinctrl-bindings.txt
>> -
>> -Optional properties:
>> -- dmas:		List of DMA specifiers with the controller specific format as described
>> -		in the generic DMA client binding. A tx and rx specifier is required.
>> -- dma-names:	List of DMA request names. These strings correspond 1:1 with the
>> -		DMA specifiers listed in dmas. The string naming is to be "tx"
>> -		and "rx" for TX and RX DMA requests, respectively.
>> -
>> -Deprecated properties:
>> -- ti,non-removable: Compatible with the generic non-removable property
>> -
>> -Example:
>> -	mmc1: mmc@4809c000 {
>> -		compatible = "ti,dra7-sdhci";
>> -		reg = <0x4809c000 0x400>;
>> -		ti,hwmods = "mmc1";
>> -		bus-width = <4>;
>> -		vmmc-supply = <&vmmc>; /* phandle to regulator node */
>> -		dmas = <&sdma 61 &sdma 62>;
>> -		dma-names = "tx", "rx";
>> -	};
>> diff --git a/Documentation/devicetree/bindings/mmc/ti,omap2430-sdhci.yaml b/Documentation/devicetree/bindings/mmc/ti,omap2430-sdhci.yaml
>> new file mode 100644
>> index 0000000000000000000000000000000000000000..7683481204b2e222847244b67f9ae2684db93028
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mmc/ti,omap2430-sdhci.yaml
>> @@ -0,0 +1,202 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/mmc/ti,omap2430-sdhci.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: TI OMAP SDHCI Controller
>> +
>> +maintainers:
>> +  - Kishon Vijay Abraham I <kishon@ti.com>
>> +
>> +description:
>> +  For UHS devices which require tuning, the device tree should have a
>> +  cpu_thermal node which maps to the appropriate thermal zone. This
>> +  is used to get the temperature of the zone during tuning.
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - ti,omap2430-sdhci
>> +      - ti,omap3-sdhci
>> +      - ti,omap4-sdhci
>> +      - ti,omap5-sdhci
>> +      - ti,dra7-sdhci
>> +      - ti,k2g-sdhci
>> +      - ti,am335-sdhci
>> +      - ti,am437-sdhci
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  interrupts:
>> +    maxItems: 1
>> +
>> +  clocks:
>> +    maxItems: 2
>> +
>> +  clock-names:
>> +    items:
>> +      - const: fck
>> +      - const: mmchsdb_fck
>> +
>> +  dmas:
>> +    maxItems: 2
>> +
>> +  dma-names:
>> +    items:
>> +      - const: tx
>> +      - const: rx
>> +
>> +  pinctrl-names:
>> +    $ref: /schemas/types.yaml#/definitions/string-array
> 
> Drop. Already has a type.

Sure, I will remove the type.

> 
>> +    minItems: 1
>> +    maxItems: 14
>> +    items:
>> +      enum:
>> +        - default
>> +        - default-rev11
>> +        - hs
>> +        - sdr12
>> +        - sdr12-rev11
>> +        - sdr25
>> +        - sdr25-rev11
>> +        - sdr50
>> +        - ddr50-rev11
>> +        - sdr104-rev11
>> +        - ddr50
>> +        - sdr104
>> +        - ddr_1_8v-rev11
>> +        - ddr_1_8v
>> +        - ddr_3_3v
>> +        - hs-rev11
>> +        - hs200_1_8v-rev11
>> +        - hs200_1_8v
>> +        - sleep

-- 
Best Regards,
Charan.