[PATCH v13 02/15] dt-bindings: mmc: cdns: Add AMD Pensando Elba SoC

Brad Larson
2023-04-10T18:46:39Z

AMD Pensando Elba ARM 64-bit SoC is integrated with this IP and
explicitly controls byte-lane enables.

Signed-off-by: Brad Larson <blarson@amd.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---

v12_changes:
- Drop 'resets: false' in the amd,pensando-elba-sd4hc else properties. Passed
dtbs_check and dt_binding_check with both versions.

v11 changes:
- Remove resets description and reset-names
- Add descriptions for amd,pensando-elba-sd4hc reg items

v10 changes:
- Move reset-names property definition next to existing resets prop
- Move allOf to the bottom and set resets/reset-names required only for pensando
- Fix reg maxItems for existing, must be 1

v9 changes:
- Add reset-names and resets properties
- Add if/then on property amd,pensando-elba-sd4hc to set reg property
values for minItems and maxItems

---
.../devicetree/bindings/mmc/cdns,sdhci.yaml | 27 ++++++++++++++++---
1 file changed, 23 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
index adacd0535c14..6c40611405a0 100644
--- a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
@@ -9,19 +9,18 @@ title: Cadence SD/SDIO/eMMC Host Controller (SD4HC)
maintainers:
- Masahiro Yamada <yamada.masahiro@socionext.com>

-allOf:
- - $ref: mmc-controller.yaml
-
properties:
compatible:
items:
- enum:
+ - amd,pensando-elba-sd4hc
- microchip,mpfs-sd4hc
- socionext,uniphier-sd4hc
- const: cdns,sd4hc

reg:
- maxItems: 1
+ minItems: 1
+ maxItems: 2

interrupts:
maxItems: 1
@@ -120,6 +119,26 @@ required:
- interrupts
- clocks

+allOf:
+ - $ref: mmc-controller.yaml
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: amd,pensando-elba-sd4hc
+ then:
+ properties:
+ reg:
+ items:
+ - description: Host controller registers
+ - description: Elba byte-lane enable register for writes
+ required:
+ - resets
+ else:
+ properties:
+ reg:
+ maxItems: 1
+
unevaluatedProperties: false

examples:
--
2.17.1