From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
The SD/MMC block on the RZ/V2H(P) ("R9A09G057") SoC is similar to that
of the R-Car Gen3, but it has some differences:
- HS400 is not supported.
- It supports the SD_IOVS bit to control the IO voltage level.
- It supports fixed address mode.
To accommodate these differences, a SoC-specific 'renesas,sdhi-r9a09g057'
compatible string is added.
A 'vqmmc-regulator' object is introduced to handle the power enable (PWEN)
and voltage level switching for the SD/MMC.
Additionally, the 'renesas,sdhi-use-internal-regulator' flag is introduced
to indicate that an internal regulator is used instead of a
GPIO-controlled regulator. This flag will help configure the internal
regulator and avoid special handling when GPIO is used for voltage
regulation instead of the SD_(IOVS/PWEN) pins.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
---
v2->v3
- Renamed vqmmc-r9a09g057-regulator object to vqmmc-regulator
- Added regulator-compatible property for vqmmc-regulator
- Added 'renesas,sdhi-use-internal-regulator' property
v1->v2
- Moved vqmmc object in the if block
- Updated commit message
---
.../devicetree/bindings/mmc/renesas,sdhi.yaml | 30 ++++++++++++++++++-
1 file changed, 29 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml b/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml
index 3d0e61e59856..20769434a422 100644
--- a/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml
+++ b/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml
@@ -18,6 +18,7 @@ properties:
- renesas,sdhi-r7s9210 # SH-Mobile AG5
- renesas,sdhi-r8a73a4 # R-Mobile APE6
- renesas,sdhi-r8a7740 # R-Mobile A1
+ - renesas,sdhi-r9a09g057 # RZ/V2H(P)
- renesas,sdhi-sh73a0 # R-Mobile APE6
- items:
- enum:
@@ -118,7 +119,9 @@ allOf:
properties:
compatible:
contains:
- const: renesas,rzg2l-sdhi
+ enum:
+ - renesas,sdhi-r9a09g057
+ - renesas,rzg2l-sdhi
then:
properties:
clocks:
@@ -204,6 +207,31 @@ allOf:
sectioned off to be run by a separate second clock source to allow
the main core clock to be turned off to save power.
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,sdhi-r9a09g057
+ then:
+ properties:
+ renesas,sdhi-use-internal-regulator:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Flag to indicate internal regulator is being used instead of GPIO regulator.
+
+ vqmmc-regulator:
+ type: object
+ description: VQMMC SD regulator
+ $ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ regulator-compatible:
+ pattern: "^vqmmc-r9a09g057-regulator"
+
+ required:
+ - vqmmc-regulator
+
required:
- compatible
- reg
--
2.34.1
