[PATCH 7/9] arm64: dts: st: disable DMA usage for i2c on stm32mp257f-ev1

Alain Volmat alain.volmat at foss.st.com
Tue Feb 24 07:48:10 PST 2026


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

Signed-off-by: Alain Volmat <alain.volmat at foss.st.com>
---
 arch/arm64/boot/dts/st/stm32mp257f-ev1.dts | 6 ++++++
 1 file changed, 6 insertions(+)

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 @@ &i2c2 {
 	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 at 1a {
 		compatible = "sony,imx335";
@@ -299,6 +302,9 @@ &i2c8 {
 	i2c-scl-falling-time-ns = <7>;
 	clock-frequency = <400000>;
 	status = "disabled";
+	/* spare dmas for other usage */
+	/delete-property/dmas;
+	/delete-property/dma-names;
 };
 
 &ommanager {

-- 
2.34.1




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