[PATCH v4 1/2] dt-bindings: mmc: sdhci-of-aspeed: Add AST2700 compatible
From: Ryan Chen <ryan_chen@aspeedtech.com>
Date: 2026-03-24 01:58:55
Also in:
linux-aspeed, linux-devicetree, linux-mmc, lkml, openbmc
Subsystem:
aspeed sd/mmc driver, multimedia card (mmc), secure digital (sd) and sdio subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Andrew Jeffery, Ulf Hansson, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
AST2700 SDHCI controller is fully compatible with AST2600. However, it is necessary to take the AST2700 SD controller out of reset, so require the 'resets' property. Reviewed-by: Krzysztof Kozlowski <redacted> Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com> --- Changes in v3: - Add items list const for ast2700 ast2600 compatible - Move if/then/else block after required: (per example-schema) Changes in v2: - add missing blank line - modify ast2700 compatible items const --- .../devicetree/bindings/mmc/aspeed,sdhci.yaml | 41 +++++++++++++++++----- 1 file changed, 33 insertions(+), 8 deletions(-)
diff --git a/Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml b/Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml
index d24950ccea95..e4a9c2810893 100644
--- a/Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml@@ -22,10 +22,15 @@ description: |+ properties: compatible: - enum: - - aspeed,ast2400-sd-controller - - aspeed,ast2500-sd-controller - - aspeed,ast2600-sd-controller + oneOf: + - enum: + - aspeed,ast2400-sd-controller + - aspeed,ast2500-sd-controller + - aspeed,ast2600-sd-controller + - items: + - const: aspeed,ast2700-sd-controller + - const: aspeed,ast2600-sd-controller + reg: maxItems: 1 description: Common configuration registers
@@ -38,6 +43,9 @@ properties: maxItems: 1 description: The SD/SDIO controller clock gate + resets: + maxItems: 1 + patternProperties: "^sdhci@[0-9a-f]+$": type: object
@@ -46,10 +54,15 @@ patternProperties: properties: compatible: - enum: - - aspeed,ast2400-sdhci - - aspeed,ast2500-sdhci - - aspeed,ast2600-sdhci + oneOf: + - enum: + - aspeed,ast2400-sdhci + - aspeed,ast2500-sdhci + - aspeed,ast2600-sdhci + - items: + - const: aspeed,ast2700-sdhci + - const: aspeed,ast2600-sdhci + reg: maxItems: 1 description: The SDHCI registers
@@ -78,6 +91,18 @@ required: - ranges - clocks +if: + properties: + compatible: + contains: + const: aspeed,ast2700-sd-controller +then: + required: + - resets +else: + properties: + resets: false + examples: - | #include <dt-bindings/clock/aspeed-clock.h>
--
2.34.1