diff mbox series

arm64: dts: qcom: sc7180: Correct the pdc interrupt ranges

Message ID 1589804402-27130-1-git-send-email-mkshah@codeaurora.org (mailing list archive)
State Accepted
Commit 7d2f29e49477aa51339e719cf73f0945c39c8a9e
Headers show
Series arm64: dts: qcom: sc7180: Correct the pdc interrupt ranges | expand

Commit Message

Maulik Shah May 18, 2020, 12:20 p.m. UTC
Few PDC interrupts do not map to respective parent GIC interrupt.
Fix this by correcting the pdc interrupt map.

Fixes: 22f185ee81d2 ("arm64: dts: qcom: sc7180: Add pdc interrupt controller")
Cc: devicetree@vger.kernel.org
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
---
 arch/arm64/boot/dts/qcom/sc7180.dtsi | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Bjorn Andersson May 19, 2020, 3:09 a.m. UTC | #1
On Mon 18 May 05:20 PDT 2020, Maulik Shah wrote:

> Few PDC interrupts do not map to respective parent GIC interrupt.
> Fix this by correcting the pdc interrupt map.
> 
> Fixes: 22f185ee81d2 ("arm64: dts: qcom: sc7180: Add pdc interrupt controller")
> Cc: devicetree@vger.kernel.org
> Signed-off-by: Maulik Shah <mkshah@codeaurora.org>

Applied

Thanks,
Bjorn

> ---
>  arch/arm64/boot/dts/qcom/sc7180.dtsi | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> index f1280e0..f6b4ee8 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> @@ -2308,8 +2308,7 @@
>  		pdc: interrupt-controller@b220000 {
>  			compatible = "qcom,sc7180-pdc", "qcom,pdc";
>  			reg = <0 0x0b220000 0 0x30000>;
> -			qcom,pdc-ranges = <0 480 15>, <17 497 98>,
> -					  <119 634 4>, <124 639 1>;
> +			qcom,pdc-ranges = <0 480 94>, <94 609 31>, <125 63 1>;
>  			#interrupt-cells = <2>;
>  			interrupt-parent = <&intc>;
>  			interrupt-controller;
> -- 
> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
> of Code Aurora Forum, hosted by The Linux Foundation
Stephen Boyd May 21, 2020, 12:39 a.m. UTC | #2
Quoting Maulik Shah (2020-05-18 05:20:02)
> Few PDC interrupts do not map to respective parent GIC interrupt.
> Fix this by correcting the pdc interrupt map.
> 
> Fixes: 22f185ee81d2 ("arm64: dts: qcom: sc7180: Add pdc interrupt controller")
> Cc: devicetree@vger.kernel.org
> Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
> ---
>  arch/arm64/boot/dts/qcom/sc7180.dtsi | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> index f1280e0..f6b4ee8 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> @@ -2308,8 +2308,7 @@
>                 pdc: interrupt-controller@b220000 {
>                         compatible = "qcom,sc7180-pdc", "qcom,pdc";
>                         reg = <0 0x0b220000 0 0x30000>;
> -                       qcom,pdc-ranges = <0 480 15>, <17 497 98>,
> -                                         <119 634 4>, <124 639 1>;
> +                       qcom,pdc-ranges = <0 480 94>, <94 609 31>, <125 63 1>;

This is a sign that we shouldn't put this information in DT. It was
wrong once so who knows if it will be wrong again. We don't have an
automated way to check this like we can check other properties. And the
information isn't something that is changed by firmware or the OS
loader. It is static data about the internals of the PDC device and how
it maps PDC pins to GIC SPI lines. We are probably better off just
setting up these ranges in the driver vs. relying on DT authors to get
it right.
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index f1280e0..f6b4ee8 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -2308,8 +2308,7 @@ 
 		pdc: interrupt-controller@b220000 {
 			compatible = "qcom,sc7180-pdc", "qcom,pdc";
 			reg = <0 0x0b220000 0 0x30000>;
-			qcom,pdc-ranges = <0 480 15>, <17 497 98>,
-					  <119 634 4>, <124 639 1>;
+			qcom,pdc-ranges = <0 480 94>, <94 609 31>, <125 63 1>;
 			#interrupt-cells = <2>;
 			interrupt-parent = <&intc>;
 			interrupt-controller;