From: Lee Yongjun <jun85566@gmail.com>
To: ulf.hansson@linaro.org, robh@kernel.org
Cc: krzk+dt@kernel.org, conor+dt@kernel.org, rjui@broadcom.com,
sbranden@broadcom.com, bcm-kernel-feedback-list@broadcom.com,
nsaenz@kernel.org, linux-mmc@vger.kernel.org,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Lee Yongjun <jun85566@gmail.com>
Subject: [PATCH] dt-bindings: mmc: brcm,iproc-sdhci: allow dma-coherent property
Date: Fri, 6 Mar 2026 08:47:03 +0900 [thread overview]
Message-ID: <20260305234703.38490-1-jun85566@gmail.com> (raw)
The Broadcom iProc SDHCI controller supports DMA, but its binding
schema does not allow the 'dma-coherent' property.
As a result, dtbs_check reports the following validation errors
on the Northstar2 SoC:
mmc@66420000 (brcm,sdhci-iproc-cygnus): Unevaluated properties
are not allowed ('dma-coherent' was unexpected)
mmc@66430000 (brcm,sdhci-iproc-cygnus): Unevaluated properties
are not allowed ('dma-coherent' was unexpected)
Allow the 'dma-coherent' property in the schema to fix the validation
errors and accurately reflect the hardware capability.
Signed-off-by: Lee Yongjun <jun85566@gmail.com>
---
Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml b/Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml
index 2f63f2cdeb71..579e44843404 100644
--- a/Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml
@@ -38,6 +38,8 @@ properties:
type: boolean
description: Specifies that controller should use auto CMD12
+ dma-coherent: true
+
required:
- compatible
- reg
--
2.34.1
next reply other threads:[~2026-03-05 23:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-05 23:47 Lee Yongjun [this message]
2026-03-06 0:03 ` [PATCH] dt-bindings: mmc: brcm,iproc-sdhci: allow dma-coherent property Ray Jui
2026-03-06 8:45 ` Krzysztof Kozlowski
2026-03-06 0:06 ` Florian Fainelli
2026-03-06 1:21 ` Rob Herring (Arm)
2026-03-06 8:42 ` Krzysztof Kozlowski
2026-03-06 8:43 ` Krzysztof Kozlowski
2026-03-06 11:06 ` Lee Yongjun
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