[PATCH 1/3] dt-bindings: mmc: spacemit,sdhci: add reset support

Yixun Lan
2025-12-21T08:21:02Z

The SpacemiT SDHCI controller has two reset lines, one connect to AXI bus
which shared by all controllers, while another one connect to individual
controller separately.

Signed-off-by: Yixun Lan <dlan@gentoo.org>
---
Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml b/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml
index 13d9382058fb..322c69b056f4 100644
--- a/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml
@@ -32,12 +32,24 @@ properties:
- const: core
- const: io

+ resets:
+ items:
+ - description: axi reset, connect to AXI bus, shared by all controllers
+ - description: sdh reset, connect to individual controller separately
+
+ reset-names:
+ items:
+ - const: axi
+ - const: sdh
+
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
+ - resets
+ - reset-names

unevaluatedProperties: false

@@ -50,4 +62,6 @@ examples:
interrupt-parent = <&plic>;
clocks = <&clk_apmu 10>, <&clk_apmu 13>;
clock-names = "core", "io";
+ resets = <&syscon_apmu 2>, <&syscon_apmu 5>;
+ reset-names = "axi", "sdh";
};

--
2.52.0