mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
* [PATCH v2] arm64: dts: qcom: hamoa-iot-som: Unreserve GPIOs blocking SPI11 access
@ 2025-11-06 10:24 Xueyao An
  2025-11-06 10:40 ` Krzysztof Kozlowski
  2025-11-06 10:50 ` Konrad Dybcio
  0 siblings, 2 replies; 3+ messages in thread
From: Xueyao An @ 2025-11-06 10:24 UTC (permalink / raw)
  To: Bjorn Andersson, Konrad Dybcio, Rob Herring, Krzysztof Kozlowski,
	Conor Dooley
  Cc: linux-arm-msm, devicetree, linux-kernel

GPIOs 44-47 were previously reserved, preventing Linux from accessing
SPI11 (qupv1_se3). Since there is no TZ use case for these pins on Linux,
they can be safely unreserved. Removing them from the reserved list
resolves the SPI11 access issue for Linux.

Signed-off-by: Xueyao An <xueyao.an@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi b/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi
index 1aead50b8920..107ea8045f55 100644
--- a/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi
+++ b/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi
@@ -451,8 +451,7 @@ &remoteproc_cdsp {
 };
 
 &tlmm {
-	gpio-reserved-ranges = <34 2>, /* TPM LP & INT */
-			       <44 4>; /* SPI (TPM) */
+	gpio-reserved-ranges = <34 2>; /* TPM LP & INT */
 
 	pcie4_default: pcie4-default-state {
 		clkreq-n-pins {
-- 
2.43.0


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2025-11-06 10:50 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2025-11-06 10:24 [PATCH v2] arm64: dts: qcom: hamoa-iot-som: Unreserve GPIOs blocking SPI11 access Xueyao An
2025-11-06 10:40 ` Krzysztof Kozlowski
2025-11-06 10:50 ` Konrad Dybcio

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®