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Message-ID: <DB8PR04MB67956B85B96E9C840BBD2798E6030@DB8PR04MB6795.eurprd04.prod.outlook.com>
Date: Fri, 16 Oct 2020 08:06:08 +0000
From: Joakim Zhang <qiangqing.zhang@....com>
To: Oleksij Rempel <o.rempel@...gutronix.de>,
"mkl@...gutronix.de" <mkl@...gutronix.de>,
Wolfgang Grandegger <wg@...ndegger.com>,
"David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>
CC: "kernel@...gutronix.de" <kernel@...gutronix.de>,
"linux-can@...r.kernel.org" <linux-can@...r.kernel.org>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Fabio Estevam <festevam@...il.com>
Subject: RE: [PATCH v1] ARM: dts: imx6/7: sync fsl,stop-mode with current
flexcan driver
> -----Original Message-----
> From: Oleksij Rempel <o.rempel@...gutronix.de>
> Sent: 2020年10月16日 15:52
> To: mkl@...gutronix.de; Wolfgang Grandegger <wg@...ndegger.com>;
> David S. Miller <davem@...emloft.net>; Jakub Kicinski <kuba@...nel.org>;
> Rob Herring <robh+dt@...nel.org>; Shawn Guo <shawnguo@...nel.org>;
> Sascha Hauer <s.hauer@...gutronix.de>
> Cc: Oleksij Rempel <o.rempel@...gutronix.de>; kernel@...gutronix.de;
> linux-can@...r.kernel.org; netdev@...r.kernel.org;
> devicetree@...r.kernel.org; linux-arm-kernel@...ts.infradead.org;
> linux-kernel@...r.kernel.org; Fabio Estevam <festevam@...il.com>; Joakim
> Zhang <qiangqing.zhang@....com>
> 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 <mkl@...gutronix.de>
> | 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 <o.rempel@...gutronix.de>
Reviewed-by: Joakim Zhang <qiangqing.zhang@....com>
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@...0000 {
> 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@...4000 {
> 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@...0000 {
> 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@...4000 {
> 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@...0000 {
> 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@...4000 {
> 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@...00000 {
> 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@...10000 {
> 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
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