2022-07-12 16:51:46

by Marek Behún

[permalink] [raw]
Subject: [PATCH v2 02/10] ARM: dts: dove: Add definitions for PCIe legacy INTx interrupts

From: Pali Rohár <[email protected]>

Add definitions for PCIe legacy INTx interrupts.

This is required for example in a scenario where a driver requests only
one of the legacy interrupts (INTA). Without this, the driver would be
notified on events on all 4 (INTA, INTB, INTC, INTD), even if it
requested only one of them.

Signed-off-by: Pali Rohár <[email protected]>
Signed-off-by: Marek Behún <[email protected]>
---
arch/arm/boot/dts/dove.dtsi | 28 ++++++++++++++++++++++++----
1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index 89e0bdaf3a85..96ba47c061a7 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -122,8 +122,18 @@ pcie0: pcie@1 {
bus-range = <0x00 0xff>;

#interrupt-cells = <1>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &intc 16>;
+ interrupt-names = "intx";
+ interrupts = <16>;
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pcie0_intc 0>,
+ <0 0 0 2 &pcie0_intc 1>,
+ <0 0 0 3 &pcie0_intc 2>,
+ <0 0 0 4 &pcie0_intc 3>;
+
+ pcie0_intc: interrupt-controller {
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
};

pcie1: pcie@2 {
@@ -141,8 +151,18 @@ pcie1: pcie@2 {
bus-range = <0x00 0xff>;

#interrupt-cells = <1>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &intc 18>;
+ interrupt-names = "intx";
+ interrupts = <18>;
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pcie1_intc 0>,
+ <0 0 0 2 &pcie1_intc 1>,
+ <0 0 0 3 &pcie1_intc 2>,
+ <0 0 0 4 &pcie1_intc 3>;
+
+ pcie1_intc: interrupt-controller {
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
};
};

--
2.35.1