[PATCH RFC v2 1/4] dt-bindings: mmc: sdhci-of-dwcmhsc: Add T-Head TH1520 support

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Add compatible value for the T-Head TH1520 dwcmshc controller and
thead,io-fixed-1v8 and thead,pull-up properties.

Signed-off-by: Drew Fustini <dfustini@xxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml b/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml
index a43eb837f8da..57602c345cab 100644
--- a/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml
@@ -19,6 +19,7 @@ properties:
       - rockchip,rk3568-dwcmshc
       - rockchip,rk3588-dwcmshc
       - snps,dwcmshc-sdhci
+      - thead,th1520-dwcmshc
 
   reg:
     maxItems: 1
@@ -60,6 +61,14 @@ properties:
     description: Specify the number of delay for tx sampling.
     $ref: /schemas/types.yaml#/definitions/uint8
 
+  thead,io-fixed-1v8:
+    description: SoC PHY pad is fixed 1.8V
+    type: boolean
+
+  thead,pull-up:
+    description: True if pull-up, false if pull-down
+    type: boolean
+
 
 required:
   - compatible

-- 
2.34.1




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