diff mbox

ARM: dts: vf610: fix IRQ flag of global timer

Message ID 20161018015127.16981-1-stefan@agner.ch (mailing list archive)
State New, archived
Headers show

Commit Message

Stefan Agner Oct. 18, 2016, 1:51 a.m. UTC
The global timer IRQ (PPI[0], PPI 11 in device tree terms) is a
rising edge interrupt. The ARM Cortex-A5 MPCore TRM in Chapter
10.1.2. Interrupt types and sources says:
"Interrupt is rising-edge sensitive."

The bits seem to be read-only, hence this missconfiguration had
no negative effect. However, with commit 992345a58e0c
("irqchip/gic: WARN if setting the interrupt type for a PPI fails")
warnings such as this get printed:
GIC: PPI11 is secure or misconfigured

With this change the new configuration matches the default
configuration and no warning is printed anymore.

Signed-off-by: Stefan Agner <stefan@agner.ch>
---
 arch/arm/boot/dts/vf500.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Shawn Guo Oct. 24, 2016, 12:06 p.m. UTC | #1
On Mon, Oct 17, 2016 at 06:51:27PM -0700, Stefan Agner wrote:
> The global timer IRQ (PPI[0], PPI 11 in device tree terms) is a
> rising edge interrupt. The ARM Cortex-A5 MPCore TRM in Chapter
> 10.1.2. Interrupt types and sources says:
> "Interrupt is rising-edge sensitive."
> 
> The bits seem to be read-only, hence this missconfiguration had
> no negative effect. However, with commit 992345a58e0c
> ("irqchip/gic: WARN if setting the interrupt type for a PPI fails")
> warnings such as this get printed:
> GIC: PPI11 is secure or misconfigured
> 
> With this change the new configuration matches the default
> configuration and no warning is printed anymore.
> 
> Signed-off-by: Stefan Agner <stefan@agner.ch>

Applied, thanks.
diff mbox

Patch

diff --git a/arch/arm/boot/dts/vf500.dtsi b/arch/arm/boot/dts/vf500.dtsi
index a3824e6..d7fdb2a 100644
--- a/arch/arm/boot/dts/vf500.dtsi
+++ b/arch/arm/boot/dts/vf500.dtsi
@@ -70,7 +70,7 @@ 
 			global_timer: timer@40002200 {
 				compatible = "arm,cortex-a9-global-timer";
 				reg = <0x40002200 0x20>;
-				interrupts = <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>;
+				interrupts = <GIC_PPI 11 IRQ_TYPE_EDGE_RISING>;
 				interrupt-parent = <&intc>;
 				clocks = <&clks VF610_CLK_PLATFORM_BUS>;
 			};