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.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
---
v3->v4
- Dropped 'renesas,sdhi-use-internal-regulator' property
- Moved 'vqmmc-regulator' to the top level
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 | 26 ++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml b/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml
index 3d0e61e59856..d632b67080bd 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:
@@ -111,6 +112,15 @@ properties:
max-frequency: true
+ vqmmc-regulator:
+ type: object
+ description: VQMMC SD regulator
+ $ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
+ properties:
+ regulator-compatible:
+ pattern: "^vqmmc-r9a09g057-regulator"
+
allOf:
- $ref: mmc-controller.yaml
@@ -118,7 +128,9 @@ allOf:
properties:
compatible:
contains:
- const: renesas,rzg2l-sdhi
+ enum:
+ - renesas,sdhi-r9a09g057
+ - renesas,rzg2l-sdhi
then:
properties:
clocks:
@@ -204,6 +216,18 @@ 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:
+ required:
+ - vqmmc-regulator
+ else:
+ properties:
+ vqmmc-regulator: false
+
required:
- compatible
- reg
--
2.34.1
