[PATCH v2 1/5] arm64: dts: qcom: sm8550: add PCIe MHI register regions

From: Joe Sandom via B4 Relay

Date: Tue Apr 07 2026 - 11:48:31 EST


From: Joe Sandom <jsandom@xxxxxxxx>

Add the MHI register regions to the pcie0 and pcie1 controller nodes
so that the MHI bus layer can access controller registers directly.

Signed-off-by: Joe Sandom <jsandom@xxxxxxxx>
---
arch/arm64/boot/dts/qcom/sm8550.dtsi | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index 912525e9bca6f5e1cbb8887ee0bf9e39650dc4ff..055ca931c04859f3a312eb9921aeb7a8cc676822 100644
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -1964,8 +1964,14 @@ pcie0: pcie@1c00000 {
<0 0x60000000 0 0xf1d>,
<0 0x60000f20 0 0xa8>,
<0 0x60001000 0 0x1000>,
- <0 0x60100000 0 0x100000>;
- reg-names = "parf", "dbi", "elbi", "atu", "config";
+ <0 0x60100000 0 0x100000>,
+ <0 0x01c03000 0 0x1000>;
+ reg-names = "parf",
+ "dbi",
+ "elbi",
+ "atu",
+ "config",
+ "mhi";
#address-cells = <3>;
#size-cells = <2>;
ranges = <0x01000000 0x0 0x00000000 0x0 0x60200000 0x0 0x100000>,
@@ -2138,8 +2144,14 @@ pcie1: pcie@1c08000 {
<0x0 0x40000000 0x0 0xf1d>,
<0x0 0x40000f20 0x0 0xa8>,
<0x0 0x40001000 0x0 0x1000>,
- <0x0 0x40100000 0x0 0x100000>;
- reg-names = "parf", "dbi", "elbi", "atu", "config";
+ <0x0 0x40100000 0x0 0x100000>,
+ <0x0 0x01c0b000 0x0 0x1000>;
+ reg-names = "parf",
+ "dbi",
+ "elbi",
+ "atu",
+ "config",
+ "mhi";
#address-cells = <3>;
#size-cells = <2>;
ranges = <0x01000000 0x0 0x00000000 0x0 0x40200000 0x0 0x100000>,

--
2.34.1