[OpenWrt-Devel] [PATCH 3/4] ipq40xx: fix high resolution timer

Petr Štetiar ynezz at true.cz
Wed May 15 08:59:35 PDT 2019


Pavel Kubelun <be.dissent at gmail.com> [2019-05-14 16:42:19]:

> diff --git a/target/linux/ipq40xx/patches-4.14/090-ipq40xx-fix-high-resolution-timer.patch b/target/linux/ipq40xx/patches-4.14/090-ipq40xx-fix-high-resolution-timer.patch
> new file mode 100644
> index 0000000000..0fc50ec533
> --- /dev/null
> +++ b/target/linux/ipq40xx/patches-4.14/090-ipq40xx-fix-high-resolution-timer.patch
> @@ -0,0 +1,30 @@
> +From 09f145f417a5d64d6b8d4476699dfb0eccc6c784 Mon Sep 17 00:00:00 2001
> +From: Pavel Kubelun <be.dissent at gmail.com>
> +Date: Tue, 7 May 2019 10:14:05 +0300
> +Subject: [PATCH] ipq40xx: fix high resolution timer
> +
> +Cherry-picked from CAF QSDK repo.

You should preserve the authorship of the changes if you do so. It looks now,
like you're author of this work.

> +The kernel is failing in switching the timer for high resolution
> +mode and clock source operates in 10ms resolution. The always-on
> +property needs to be given for timer device tree node to make
> +clock source working in 1ns resolution.

Shouldn't this go through upstream as well?

> + 	soc {
> diff --git a/target/linux/ipq40xx/patches-4.14/701-dts-ipq4019-add-mdio-node.patch b/target/linux/ipq40xx/patches-4.14/701-dts-ipq4019-add-mdio-node.patch
> index 0e1bb87368..b7e241058c 100644
> --- a/target/linux/ipq40xx/patches-4.14/701-dts-ipq4019-add-mdio-node.patch
> +++ b/target/linux/ipq40xx/patches-4.14/701-dts-ipq4019-add-mdio-node.patch
> @@ -15,7 +15,7 @@ so the info might change.
>  
>  --- a/arch/arm/boot/dts/qcom-ipq4019.dtsi
>  +++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi
> -@@ -566,6 +566,34 @@
> +@@ -567,6 +567,34 @@
>   			status = "disabled";
>   		};

Probably some leftover?

> diff --git a/target/linux/ipq40xx/patches-4.14/702-dts-ipq4019-add-PHY-switch-nodes.patch b/target/linux/ipq40xx/patches-4.14/702-dts-ipq4019-add-PHY-switch-nodes.patch
> index 03da6c863a..cc56a60ea3 100644
> --- a/target/linux/ipq40xx/patches-4.14/702-dts-ipq4019-add-PHY-switch-nodes.patch
> +++ b/target/linux/ipq40xx/patches-4.14/702-dts-ipq4019-add-PHY-switch-nodes.patch
> @@ -14,7 +14,7 @@ Signed-off-by: Christian Lamparter <chunkeey at gmail.com>
>  
>  --- a/arch/arm/boot/dts/qcom-ipq4019.dtsi
>  +++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi
> -@@ -594,6 +594,29 @@
> +@@ -595,6 +595,29 @@
>   			};
>   		};

Ditto.

> diff --git a/target/linux/ipq40xx/patches-4.14/711-dts-ipq4019-add-ethernet-essedma-node.patch b/target/linux/ipq40xx/patches-4.14/711-dts-ipq4019-add-ethernet-essedma-node.patch
> index 7302d237bc..80b16a8211 100644
> --- a/target/linux/ipq40xx/patches-4.14/711-dts-ipq4019-add-ethernet-essedma-node.patch
> +++ b/target/linux/ipq40xx/patches-4.14/711-dts-ipq4019-add-ethernet-essedma-node.patch
> @@ -25,7 +25,7 @@ Signed-off-by: Christian Lamparter <chunkeey at gmail.com>
>   	};
>   
>   	cpus {
> -@@ -617,6 +619,64 @@
> +@@ -618,6 +620,64 @@
>   			status = "disabled";
>   		};

Ditto.

> diff --git a/target/linux/ipq40xx/patches-4.19/086-ipq40xx-fix-high-resolution-timer.patch b/target/linux/ipq40xx/patches-4.19/086-ipq40xx-fix-high-resolution-timer.patch
> new file mode 100644
> index 0000000000..9d277fa8e0
> --- /dev/null
> +++ b/target/linux/ipq40xx/patches-4.19/086-ipq40xx-fix-high-resolution-timer.patch
> @@ -0,0 +1,30 @@
> +From 09f145f417a5d64d6b8d4476699dfb0eccc6c784 Mon Sep 17 00:00:00 2001
> +From: Pavel Kubelun <be.dissent at gmail.com>
> +Date: Tue, 7 May 2019 10:14:05 +0300
> +Subject: [PATCH] ipq40xx: fix high resolution timer
> +
> +Cherry-picked from CAF QSDK repo.
> +Original commit message:
> +The kernel is failing in switching the timer for high resolution
> +mode and clock source operates in 10ms resolution. The always-on
> +property needs to be given for timer device tree node to make
> +clock source working in 1ns resolution.

Same as above.

> diff --git a/target/linux/ipq40xx/patches-4.19/701-dts-ipq4019-add-mdio-node.patch b/target/linux/ipq40xx/patches-4.19/701-dts-ipq4019-add-mdio-node.patch
> index e5936a0c93..0298644d22 100644
> --- a/target/linux/ipq40xx/patches-4.19/701-dts-ipq4019-add-mdio-node.patch
> +++ b/target/linux/ipq40xx/patches-4.19/701-dts-ipq4019-add-mdio-node.patch
> @@ -15,7 +15,7 @@ so the info might change.
>  
>  --- a/arch/arm/boot/dts/qcom-ipq4019.dtsi
>  +++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi
> -@@ -570,6 +570,34 @@
> +@@ -571,6 +571,34 @@
>   			status = "disabled";
>   		};

Ditto.

> diff --git a/target/linux/ipq40xx/patches-4.19/702-dts-ipq4019-add-PHY-switch-nodes.patch b/target/linux/ipq40xx/patches-4.19/702-dts-ipq4019-add-PHY-switch-nodes.patch
> index 7c5d1ec2bb..df95699294 100644
> --- a/target/linux/ipq40xx/patches-4.19/702-dts-ipq4019-add-PHY-switch-nodes.patch
> +++ b/target/linux/ipq40xx/patches-4.19/702-dts-ipq4019-add-PHY-switch-nodes.patch
> @@ -14,7 +14,7 @@ Signed-off-by: Christian Lamparter <chunkeey at gmail.com>
>  
>  --- a/arch/arm/boot/dts/qcom-ipq4019.dtsi
>  +++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi
> -@@ -598,6 +598,29 @@
> +@@ -599,6 +599,29 @@
>   			};
>   		};

Ditto.

> diff --git a/target/linux/ipq40xx/patches-4.19/711-dts-ipq4019-add-ethernet-essedma-node.patch b/target/linux/ipq40xx/patches-4.19/711-dts-ipq4019-add-ethernet-essedma-node.patch
> index 51cf411143..8f7627b048 100644
> --- a/target/linux/ipq40xx/patches-4.19/711-dts-ipq4019-add-ethernet-essedma-node.patch
> +++ b/target/linux/ipq40xx/patches-4.19/711-dts-ipq4019-add-ethernet-essedma-node.patch
> @@ -25,7 +25,7 @@ Signed-off-by: Christian Lamparter <chunkeey at gmail.com>
>   	};
>   
>   	cpus {
> -@@ -621,6 +623,64 @@
> +@@ -622,6 +624,64 @@
>   			status = "disabled";
>   		};

Ditto.



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