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ARM: dts: imx7d: Invert legacy PCI irq mapping

Message ID 20171009184344.5839-1-andrew.smirnov@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Andrey Smirnov Oct. 9, 2017, 6:43 p.m. UTC
According to i.MX7D reference manual (Rev. 0.1, table 7-1, page 1221)
legacy PCI interrupt mapping is as follows:

 - PCIE INT A is IRQ 122
 - PCIE INT B is IRQ 123
 - PCIE INT C is IRQ 124
 - PCIE INT D is IRQ 125

Invert the mapping information in corresponding DT node to reflect
that.

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: yurovsky@gmail.com
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---

Discovered by using custom build of QEMU[1] when using together with
"usb-ehci" which is, AFAIU, ICH4. A bit of a convoluted use-case, but
I thought it would still be worht fixing.

[1] https://github.com/ndreys/qemu/tree/imx7-support-upstreaming 

 arch/arm/boot/dts/imx7d.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comments

Shawn Guo Oct. 14, 2017, 2:59 p.m. UTC | #1
On Mon, Oct 09, 2017 at 11:43:44AM -0700, Andrey Smirnov wrote:
> According to i.MX7D reference manual (Rev. 0.1, table 7-1, page 1221)
> legacy PCI interrupt mapping is as follows:
> 
>  - PCIE INT A is IRQ 122
>  - PCIE INT B is IRQ 123
>  - PCIE INT C is IRQ 124
>  - PCIE INT D is IRQ 125
> 
> Invert the mapping information in corresponding DT node to reflect
> that.
> 
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: yurovsky@gmail.com
> Cc: Fabio Estevam <fabio.estevam@nxp.com>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Cc: devicetree@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-arm-kernel@lists.infradead.org
> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>

Applied, thanks.
diff mbox

Patch

diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi
index f46814a7ea44..4d308d17f040 100644
--- a/arch/arm/boot/dts/imx7d.dtsi
+++ b/arch/arm/boot/dts/imx7d.dtsi
@@ -144,10 +144,10 @@ 
 		interrupt-names = "msi";
 		#interrupt-cells = <1>;
 		interrupt-map-mask = <0 0 0 0x7>;
-		interrupt-map = <0 0 0 1 &intc GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 0 2 &intc GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 0 3 &intc GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 0 4 &intc GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-map = <0 0 0 1 &intc GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 0 2 &intc GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 0 3 &intc GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 0 4 &intc GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&clks IMX7D_PCIE_CTRL_ROOT_CLK>,
 			 <&clks IMX7D_PLL_ENET_MAIN_100M_CLK>,
 			 <&clks IMX7D_PCIE_PHY_ROOT_CLK>;