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
+ 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
+
+ pinctrl-0:
+ maxItems: 1
+
+ pinctrl-1:
+ maxItems: 1
+
+ pinctrl-2:
+ maxItems: 1
+
+ pinctrl-3:
+ maxItems: 1
+
+ pinctrl-4:
+ maxItems: 1
+
+ pinctrl-5:
+ maxItems: 1
+
+ pinctrl-6:
+ maxItems: 1
+
+ pinctrl-7:
+ maxItems: 1
+
+ pinctrl-8:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ pbias-supply:
+ description:
+ It is used to specify the voltage regulator that provides the bias
+ voltage for certain analog or I/O pads.
+
+ cap-mmc-dual-data-rate:
+ description:
+ A characteristic or capability associated with MultiMediaCard (MMC)
+ interfaces, specifically indicating that the MMC controller
+ supports Dual Data Rate (DDR) mode.
+ type: boolean
+
+ ti,needs-special-reset:
+ description:
+ It indicates that a specific soft reset sequence is required for
+ certain Texas Instruments devices, particularly those with
+ HSMMC (High-Speed MultiMediaCard) controllers.
+ type: boolean
+
+ ti,needs-special-hs-handling:
+ description:
+ It's presence in an MMC controller's DT node signals to the Linux kernel's
+ omap_hsmmc driver that this particular IP block requires special software
+ handling or workarounds to correctly manage High-Speed (HS) modes like
+ SDR25, SDR50, SDR104, DDR50.
+ type: boolean
+
+ ti,non-removable:
+ description:
+ It indicates that a component is not meant to be easily removed or
+ replaced by the user, such as an embedded battery or a non-removable
+ storage slot like eMMC.
+ type: boolean
+ deprecated: true
+
+ clock-frequency:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ It represents the speed at which a clock signal associated with a device
+ or bus operates, measured in Hertz (Hz). This value is crucial for configuring
+ hardware components that require a specific clock speed.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+allOf:
+ - $ref: sdhci-common.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - ti,dra7-sdhci
+ - ti,k2g-sdhci
+ then:
+ required:
+ - max-frequency
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: ti,k2g-sdhci
+ then:
+ required:
+ - clocks
+ - clock-names
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - ti,am335-sdhci
+ - ti,am437-sdhci
+ then:
+ required:
+ - ti,needs-special-reset
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ mmc@4809c000 {
+ compatible = "ti,dra7-sdhci";
+ reg = <0x4809c000 0x400>;
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
+ max-frequency = <192000000>;
+ sdhci-caps-mask = <0x0 0x400000>;
+ bus-width = <4>;
+ vmmc-supply = <&vmmc>; /* phandle to regulator node */
+ dmas = <&sdma 61>, <&sdma 62>;
+ dma-names = "tx", "rx";
+ };
+...
--
2.51.0On 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.
> + 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
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.
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