2020-10-16 08:50:19

by Oleksij Rempel

[permalink] [raw]
Subject: [PATCH v1] ARM: dts: imx6/7: sync fsl,stop-mode with current flexcan driver

After this patch we need 2 arguments less for the fsl,stop-mode
property:

| commit d9b081e3fc4bdc33e672dcb7bb256394909432fc
| Author: Marc Kleine-Budde <[email protected]>
| Date: Sun Jun 14 21:09:20 2020 +0200
|
| can: flexcan: remove ack_grp and ack_bit handling from driver
|
| Since commit:
|
| 048e3a34a2e7 can: flexcan: poll MCR_LPM_ACK instead of GPR ACK for stop mode acknowledgment
|
| the driver polls the IP core's internal bit MCR[LPM_ACK] as stop mode
| acknowledge and not the acknowledgment on chip level.
|
| This means the 4th and 5th value of the property "fsl,stop-mode" isn't used
| anymore. This patch removes the used "ack_gpr" and "ack_bit" from the driver.

This patch removes the two last arguments, as they are not needed
anymore.

Signed-off-by: Oleksij Rempel <[email protected]>

# Please enter the commit message for your changes. Lines starting
---
arch/arm/boot/dts/imx6qdl.dtsi | 4 ++--
arch/arm/boot/dts/imx6sx.dtsi | 4 ++--
arch/arm/boot/dts/imx6ul.dtsi | 4 ++--
arch/arm/boot/dts/imx7s.dtsi | 4 ++--
4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index 43edbf1156c7..5efb9b923bf9 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -549,7 +549,7 @@ can1: flexcan@2090000 {
clocks = <&clks IMX6QDL_CLK_CAN1_IPG>,
<&clks IMX6QDL_CLK_CAN1_SERIAL>;
clock-names = "ipg", "per";
- fsl,stop-mode = <&gpr 0x34 28 0x10 17>;
+ fsl,stop-mode = <&gpr 0x34 28>;
status = "disabled";
};

@@ -560,7 +560,7 @@ can2: flexcan@2094000 {
clocks = <&clks IMX6QDL_CLK_CAN2_IPG>,
<&clks IMX6QDL_CLK_CAN2_SERIAL>;
clock-names = "ipg", "per";
- fsl,stop-mode = <&gpr 0x34 29 0x10 18>;
+ fsl,stop-mode = <&gpr 0x34 29>;
status = "disabled";
};

diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
index b480dfa9e251..8770e522d21c 100644
--- a/arch/arm/boot/dts/imx6sx.dtsi
+++ b/arch/arm/boot/dts/imx6sx.dtsi
@@ -463,7 +463,7 @@ flexcan1: can@2090000 {
clocks = <&clks IMX6SX_CLK_CAN1_IPG>,
<&clks IMX6SX_CLK_CAN1_SERIAL>;
clock-names = "ipg", "per";
- fsl,stop-mode = <&gpr 0x10 1 0x10 17>;
+ fsl,stop-mode = <&gpr 0x10 1>;
status = "disabled";
};

@@ -474,7 +474,7 @@ flexcan2: can@2094000 {
clocks = <&clks IMX6SX_CLK_CAN2_IPG>,
<&clks IMX6SX_CLK_CAN2_SERIAL>;
clock-names = "ipg", "per";
- fsl,stop-mode = <&gpr 0x10 2 0x10 18>;
+ fsl,stop-mode = <&gpr 0x10 2>;
status = "disabled";
};

diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi
index 2b088f210331..4a059708ff20 100644
--- a/arch/arm/boot/dts/imx6ul.dtsi
+++ b/arch/arm/boot/dts/imx6ul.dtsi
@@ -430,7 +430,7 @@ can1: flexcan@2090000 {
clocks = <&clks IMX6UL_CLK_CAN1_IPG>,
<&clks IMX6UL_CLK_CAN1_SERIAL>;
clock-names = "ipg", "per";
- fsl,stop-mode = <&gpr 0x10 1 0x10 17>;
+ fsl,stop-mode = <&gpr 0x10 1>;
status = "disabled";
};

@@ -441,7 +441,7 @@ can2: flexcan@2094000 {
clocks = <&clks IMX6UL_CLK_CAN2_IPG>,
<&clks IMX6UL_CLK_CAN2_SERIAL>;
clock-names = "ipg", "per";
- fsl,stop-mode = <&gpr 0x10 2 0x10 18>;
+ fsl,stop-mode = <&gpr 0x10 2>;
status = "disabled";
};

diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
index 1cfaf410aa43..837f0da08686 100644
--- a/arch/arm/boot/dts/imx7s.dtsi
+++ b/arch/arm/boot/dts/imx7s.dtsi
@@ -971,7 +971,7 @@ flexcan1: can@30a00000 {
clocks = <&clks IMX7D_CLK_DUMMY>,
<&clks IMX7D_CAN1_ROOT_CLK>;
clock-names = "ipg", "per";
- fsl,stop-mode = <&gpr 0x10 1 0x10 17>;
+ fsl,stop-mode = <&gpr 0x10 1>;
status = "disabled";
};

@@ -982,7 +982,7 @@ flexcan2: can@30a10000 {
clocks = <&clks IMX7D_CLK_DUMMY>,
<&clks IMX7D_CAN2_ROOT_CLK>;
clock-names = "ipg", "per";
- fsl,stop-mode = <&gpr 0x10 2 0x10 18>;
+ fsl,stop-mode = <&gpr 0x10 2>;
status = "disabled";
};

--
2.28.0


2020-10-16 09:07:32

by Joakim Zhang

[permalink] [raw]
Subject: RE: [PATCH v1] ARM: dts: imx6/7: sync fsl,stop-mode with current flexcan driver


> -----Original Message-----
> From: Oleksij Rempel <[email protected]>
> Sent: 2020??10??16?? 15:52
> To: [email protected]; Wolfgang Grandegger <[email protected]>;
> David S. Miller <[email protected]>; Jakub Kicinski <[email protected]>;
> Rob Herring <[email protected]>; Shawn Guo <[email protected]>;
> Sascha Hauer <[email protected]>
> Cc: Oleksij Rempel <[email protected]>; [email protected];
> [email protected]; [email protected];
> [email protected]; [email protected];
> [email protected]; Fabio Estevam <[email protected]>; Joakim
> Zhang <[email protected]>
> Subject: [PATCH v1] ARM: dts: imx6/7: sync fsl,stop-mode with current flexcan
> driver
>
> After this patch we need 2 arguments less for the fsl,stop-mode
> property:
>
> | commit d9b081e3fc4bdc33e672dcb7bb256394909432fc
> | Author: Marc Kleine-Budde <[email protected]>
> | Date: Sun Jun 14 21:09:20 2020 +0200
> |
> | can: flexcan: remove ack_grp and ack_bit handling from driver
> |
> | Since commit:
> |
> | 048e3a34a2e7 can: flexcan: poll MCR_LPM_ACK instead of GPR ACK for
> | stop mode acknowledgment
> |
> | the driver polls the IP core's internal bit MCR[LPM_ACK] as stop mode
> | acknowledge and not the acknowledgment on chip level.
> |
> | This means the 4th and 5th value of the property "fsl,stop-mode" isn't
> | used anymore. This patch removes the used "ack_gpr" and "ack_bit" from
> the driver.
>
> This patch removes the two last arguments, as they are not needed anymore.
>
> Signed-off-by: Oleksij Rempel <[email protected]>
Reviewed-by: Joakim Zhang <[email protected]>

Best Regards,
Joakim Zhang
> # Please enter the commit message for your changes. Lines starting
> ---
> arch/arm/boot/dts/imx6qdl.dtsi | 4 ++-- arch/arm/boot/dts/imx6sx.dtsi |
> 4 ++-- arch/arm/boot/dts/imx6ul.dtsi | 4 ++--
> arch/arm/boot/dts/imx7s.dtsi | 4 ++--
> 4 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
> index 43edbf1156c7..5efb9b923bf9 100644
> --- a/arch/arm/boot/dts/imx6qdl.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl.dtsi
> @@ -549,7 +549,7 @@ can1: flexcan@2090000 {
> clocks = <&clks IMX6QDL_CLK_CAN1_IPG>,
> <&clks IMX6QDL_CLK_CAN1_SERIAL>;
> clock-names = "ipg", "per";
> - fsl,stop-mode = <&gpr 0x34 28 0x10 17>;
> + fsl,stop-mode = <&gpr 0x34 28>;
> status = "disabled";
> };
>
> @@ -560,7 +560,7 @@ can2: flexcan@2094000 {
> clocks = <&clks IMX6QDL_CLK_CAN2_IPG>,
> <&clks IMX6QDL_CLK_CAN2_SERIAL>;
> clock-names = "ipg", "per";
> - fsl,stop-mode = <&gpr 0x34 29 0x10 18>;
> + fsl,stop-mode = <&gpr 0x34 29>;
> status = "disabled";
> };
>
> diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
> index b480dfa9e251..8770e522d21c 100644
> --- a/arch/arm/boot/dts/imx6sx.dtsi
> +++ b/arch/arm/boot/dts/imx6sx.dtsi
> @@ -463,7 +463,7 @@ flexcan1: can@2090000 {
> clocks = <&clks IMX6SX_CLK_CAN1_IPG>,
> <&clks IMX6SX_CLK_CAN1_SERIAL>;
> clock-names = "ipg", "per";
> - fsl,stop-mode = <&gpr 0x10 1 0x10 17>;
> + fsl,stop-mode = <&gpr 0x10 1>;
> status = "disabled";
> };
>
> @@ -474,7 +474,7 @@ flexcan2: can@2094000 {
> clocks = <&clks IMX6SX_CLK_CAN2_IPG>,
> <&clks IMX6SX_CLK_CAN2_SERIAL>;
> clock-names = "ipg", "per";
> - fsl,stop-mode = <&gpr 0x10 2 0x10 18>;
> + fsl,stop-mode = <&gpr 0x10 2>;
> status = "disabled";
> };
>
> diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi
> index 2b088f210331..4a059708ff20 100644
> --- a/arch/arm/boot/dts/imx6ul.dtsi
> +++ b/arch/arm/boot/dts/imx6ul.dtsi
> @@ -430,7 +430,7 @@ can1: flexcan@2090000 {
> clocks = <&clks IMX6UL_CLK_CAN1_IPG>,
> <&clks IMX6UL_CLK_CAN1_SERIAL>;
> clock-names = "ipg", "per";
> - fsl,stop-mode = <&gpr 0x10 1 0x10 17>;
> + fsl,stop-mode = <&gpr 0x10 1>;
> status = "disabled";
> };
>
> @@ -441,7 +441,7 @@ can2: flexcan@2094000 {
> clocks = <&clks IMX6UL_CLK_CAN2_IPG>,
> <&clks IMX6UL_CLK_CAN2_SERIAL>;
> clock-names = "ipg", "per";
> - fsl,stop-mode = <&gpr 0x10 2 0x10 18>;
> + fsl,stop-mode = <&gpr 0x10 2>;
> status = "disabled";
> };
>
> diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi index
> 1cfaf410aa43..837f0da08686 100644
> --- a/arch/arm/boot/dts/imx7s.dtsi
> +++ b/arch/arm/boot/dts/imx7s.dtsi
> @@ -971,7 +971,7 @@ flexcan1: can@30a00000 {
> clocks = <&clks IMX7D_CLK_DUMMY>,
> <&clks IMX7D_CAN1_ROOT_CLK>;
> clock-names = "ipg", "per";
> - fsl,stop-mode = <&gpr 0x10 1 0x10 17>;
> + fsl,stop-mode = <&gpr 0x10 1>;
> status = "disabled";
> };
>
> @@ -982,7 +982,7 @@ flexcan2: can@30a10000 {
> clocks = <&clks IMX7D_CLK_DUMMY>,
> <&clks IMX7D_CAN2_ROOT_CLK>;
> clock-names = "ipg", "per";
> - fsl,stop-mode = <&gpr 0x10 2 0x10 18>;
> + fsl,stop-mode = <&gpr 0x10 2>;
> status = "disabled";
> };
>
> --
> 2.28.0

2020-10-31 08:41:41

by Shawn Guo

[permalink] [raw]
Subject: Re: [PATCH v1] ARM: dts: imx6/7: sync fsl,stop-mode with current flexcan driver

On Fri, Oct 16, 2020 at 09:51:58AM +0200, Oleksij Rempel wrote:
> After this patch we need 2 arguments less for the fsl,stop-mode
> property:
>
> | commit d9b081e3fc4bdc33e672dcb7bb256394909432fc
> | Author: Marc Kleine-Budde <[email protected]>
> | Date: Sun Jun 14 21:09:20 2020 +0200
> |
> | can: flexcan: remove ack_grp and ack_bit handling from driver
> |
> | Since commit:
> |
> | 048e3a34a2e7 can: flexcan: poll MCR_LPM_ACK instead of GPR ACK for stop mode acknowledgment
> |
> | the driver polls the IP core's internal bit MCR[LPM_ACK] as stop mode
> | acknowledge and not the acknowledgment on chip level.
> |
> | This means the 4th and 5th value of the property "fsl,stop-mode" isn't used
> | anymore. This patch removes the used "ack_gpr" and "ack_bit" from the driver.
>
> This patch removes the two last arguments, as they are not needed
> anymore.
>
> Signed-off-by: Oleksij Rempel <[email protected]>
>
> # Please enter the commit message for your changes. Lines starting

It shouldn't be here.

Fixed it up and applied the patch.

Shawn