[PATCH 7/9] arm64: dts: st: disable DMA usage for i2c on stm32mp257f-ev1
From: Alain Volmat
Date: Tue Feb 24 2026 - 10:51:46 EST
Keep DMA resources available by avoiding usage of DMA for i2c transfers
on stm32mp257f-ev1 board.
Signed-off-by: Alain Volmat <alain.volmat@xxxxxxxxxxx>
---
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@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