From: Alain Volmat <alain.volmat@foss.st.com>
Date: Tue, 24 Feb 2026 15:48:10 +0000 (+0100)
Subject: arm64: dts: st: disable DMA usage for i2c on stm32mp257f-ev1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dcc792919ceef80b5ab7c328dde6deff7ebe0cc3;p=thirdparty%2Fkernel%2Fstable.git

arm64: dts: st: disable DMA usage for i2c on stm32mp257f-ev1

Keep DMA resources available by avoiding usage of DMA for i2c transfers
on stm32mp257f-ev1 board.

Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Link: https://lore.kernel.org/r/20260224-stm32-i2c-dt-updates-v1-7-347cf6fca7d1@foss.st.com
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
---

diff --git a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
index 852a73b0c516..14e033f365e3 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
@@ -261,6 +261,9 @@
 	i2c-scl-falling-time-ns = <13>;
 	clock-frequency = <400000>;
 	status = "okay";
+	/* spare dmas for other usage */
+	/delete-property/dmas;
+	/delete-property/dma-names;
 
 	imx335: camera@1a {
 		compatible = "sony,imx335";
@@ -299,6 +302,9 @@
 	i2c-scl-falling-time-ns = <7>;
 	clock-frequency = <400000>;
 	status = "disabled";
+	/* spare dmas for other usage */
+	/delete-property/dmas;
+	/delete-property/dma-names;
 };
 
 &ommanager {