[PATCH 5/6] arm64: dts: renesas: r8a779g0: Add PCIe Application/Local register reset
From: Marek Vasut
Date: Thu Sep 03 2026 - 17:07:41 EST
Renesas R-Car V4H documentation R19UH0186EJ0140 Rev.1.40 , Aug. 7, 2026
attachment R-CarV4H_UM_009_SRCRn_FSRCHKRAn_FSRCHKRBn_r1p40.xlsx rows 410
and 411 describe PCIEC ch1/ch0 Application/Local register reset. Add the
matching reset into both RC and EP DT nodes of both PCIe controllers.
Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxxxx>
---
Cc: "Krzysztof Wilczyński" <kwilczynski@xxxxxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Conor Dooley <conor+dt@xxxxxxxxxx>
Cc: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Cc: Koichiro Den <den@xxxxxxxxxxxxx>
Cc: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
Cc: Lorenzo Pieralisi <lpieralisi@xxxxxxxxxx>
Cc: Magnus Damm <magnus.damm@xxxxxxxxx>
Cc: Manivannan Sadhasivam <mani@xxxxxxxxxx>
Cc: Rob Herring <robh@xxxxxxxxxx>
Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-pci@xxxxxxxxxxxxxxx
Cc: linux-renesas-soc@xxxxxxxxxxxxxxx
---
arch/arm64/boot/dts/renesas/r8a779g0.dtsi | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
index ea6495261c2bb..fbcd9d37eb8a2 100644
--- a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
@@ -806,8 +806,8 @@ pciec0: pcie@e65d0000 {
clocks = <&cpg CPG_MOD 624>, <&pcie0_clkref>;
clock-names = "core", "ref";
power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
- resets = <&cpg 624>;
- reset-names = "pwr";
+ resets = <&cpg 624>, <&cpg 1121>;
+ reset-names = "pwr", "core";
max-link-speed = <4>;
msi-parent = <&its>;
num-lanes = <2>;
@@ -854,8 +854,8 @@ pciec1: pcie@e65d8000 {
clocks = <&cpg CPG_MOD 625>, <&pcie1_clkref>;
clock-names = "core", "ref";
power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
- resets = <&cpg 625>;
- reset-names = "pwr";
+ resets = <&cpg 625>, <&cpg 1122>;
+ reset-names = "pwr", "core";
max-link-speed = <4>;
msi-parent = <&its>;
num-lanes = <2>;
@@ -901,8 +901,8 @@ pciec0_ep: pcie-ep@e65d0000 {
clocks = <&cpg CPG_MOD 624>, <&pcie0_clkref>;
clock-names = "core", "ref";
power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
- resets = <&cpg 624>;
- reset-names = "pwr";
+ resets = <&cpg 624>, <&cpg 1121>;
+ reset-names = "pwr", "core";
max-link-speed = <4>;
num-lanes = <2>;
max-functions = /bits/ 8 <2>;
@@ -924,8 +924,8 @@ pciec1_ep: pcie-ep@e65d8000 {
clocks = <&cpg CPG_MOD 625>, <&pcie1_clkref>;
clock-names = "core", "ref";
power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
- resets = <&cpg 625>;
- reset-names = "pwr";
+ resets = <&cpg 625>, <&cpg 1122>;
+ reset-names = "pwr", "core";
max-link-speed = <4>;
num-lanes = <2>;
max-functions = /bits/ 8 <2>;
--
2.53.0