linux-kernel - [PATCH v2 2/2] dt-bindings: mmc: sdhci-am654: Add ti,suppress-v1p8-ena

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Message-ID: <20250417182652.3521104-3-jm@ti.com>
Date: Thu, 17 Apr 2025 13:26:52 -0500
From: Judith Mendez <jm@...com>
To: Ulf Hansson <ulf.hansson@...aro.org>,
        Adrian Hunter
	<adrian.hunter@...el.com>
CC: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, <linux-mmc@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Josua Mayer
	<josua@...id-run.com>, Moteen Shah <m-shah@...com>,
        Francesco Dolcini
	<francesco@...cini.it>,
        Hiago De Franco <hiagofranco@...il.com>
Subject: [PATCH v2 2/2] dt-bindings: mmc: sdhci-am654: Add ti,suppress-v1p8-ena

This patch documents ti,suppress-v1p8-ena which is a flag
used to suppress V1P8_SIGNAL_ENA in sdhci_am654 driver. This
quirk is necessary to fix fail init issues across various
types of SD cards tested on Sitara K3 SoCs.

Signed-off-by: Judith Mendez <jm@...com>
---
 Documentation/devicetree/bindings/mmc/sdhci-am654.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml b/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml
index 676a746953893..0f92bbf8e13b3 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml
+++ b/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml
@@ -201,6 +201,11 @@ properties:
       and the controller is required to be forced into Test mode
       to set the TESTCD bit.
 
+  ti,suppress-v1p8-ena:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      When present, V1P8_SIGNAL_ENA shall be suppressed.
+
 required:
   - compatible
   - reg
-- 
2.49.0