| Message ID | 20190807082556.5013-12-philippe.schenker@toradex.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Common patches from downstream development | expand |
On Wed, 2019-08-07 at 08:26 +0000, Philippe Schenker wrote: > This patch prepares the devicetree for the new Ixora V1.2 where we > are > able to turn off the supply of the can transceiver. This implies to > use > a sleep state on transmission pins in order to prevent backfeeding. > > Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> > --- > > Changes in v3: None > Changes in v2: > - Changed commit title to '...imx6qdl-apalis:...' > > arch/arm/boot/dts/imx6qdl-apalis.dtsi | 27 +++++++++++++++++++++-- > ---- > 1 file changed, 21 insertions(+), 6 deletions(-) > > diff --git a/arch/arm/boot/dts/imx6qdl-apalis.dtsi > b/arch/arm/boot/dts/imx6qdl-apalis.dtsi > index 7c4ad541c3f5..59ed2e4a1fd1 100644 > --- a/arch/arm/boot/dts/imx6qdl-apalis.dtsi > +++ b/arch/arm/boot/dts/imx6qdl-apalis.dtsi > @@ -148,14 +148,16 @@ > }; > > &can1 { > - pinctrl-names = "default"; > - pinctrl-0 = <&pinctrl_flexcan1>; > + pinctrl-names = "default", "sleep"; > + pinctrl-0 = <&pinctrl_flexcan1_default>; > + pinctrl-1 = <&pinctrl_flexcan1_sleep>; > status = "disabled"; > }; > > &can2 { > - pinctrl-names = "default"; > - pinctrl-0 = <&pinctrl_flexcan2>; > + pinctrl-names = "default", "sleep"; > + pinctrl-0 = <&pinctrl_flexcan2_default>; > + pinctrl-1 = <&pinctrl_flexcan2_sleep>; > status = "disabled"; > }; > > @@ -599,19 +601,32 @@ > >; > }; > > - pinctrl_flexcan1: flexcan1grp { > + pinctrl_flexcan1_default: flexcan1defgrp { > fsl,pins = < > MX6QDL_PAD_GPIO_7__FLEXCAN1_TX 0x1b0b0 > MX6QDL_PAD_GPIO_8__FLEXCAN1_RX 0x1b0b0 > >; > }; > > - pinctrl_flexcan2: flexcan2grp { > + pinctrl_flexcan1_sleep: flexcan1slpgrp { > + fsl,pins = < > + MX6QDL_PAD_GPIO_7__GPIO1_IO07 0x0 > + MX6QDL_PAD_GPIO_8__GPIO1_IO08 0x0 > + >; > + }; > + > + pinctrl_flexcan2_default: flexcan2defgrp { > fsl,pins = < > MX6QDL_PAD_KEY_COL4__FLEXCAN2_TX 0x1b0b0 > MX6QDL_PAD_KEY_ROW4__FLEXCAN2_RX 0x1b0b0 > >; > }; > + pinctrl_flexcan2_sleep: flexcan2slpgrp { > + fsl,pins = < > + MX6QDL_PAD_KEY_COL4__GPIO4_IO14 0x0 > + MX6QDL_PAD_KEY_ROW4__GPIO4_IO15 0x0 > + >; > + }; > > pinctrl_gpio_bl_on: gpioblon { > fsl,pins = <
diff --git a/arch/arm/boot/dts/imx6qdl-apalis.dtsi b/arch/arm/boot/dts/imx6qdl-apalis.dtsi index 7c4ad541c3f5..59ed2e4a1fd1 100644 --- a/arch/arm/boot/dts/imx6qdl-apalis.dtsi +++ b/arch/arm/boot/dts/imx6qdl-apalis.dtsi @@ -148,14 +148,16 @@ }; &can1 { - pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_flexcan1>; + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&pinctrl_flexcan1_default>; + pinctrl-1 = <&pinctrl_flexcan1_sleep>; status = "disabled"; }; &can2 { - pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_flexcan2>; + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&pinctrl_flexcan2_default>; + pinctrl-1 = <&pinctrl_flexcan2_sleep>; status = "disabled"; }; @@ -599,19 +601,32 @@ >; }; - pinctrl_flexcan1: flexcan1grp { + pinctrl_flexcan1_default: flexcan1defgrp { fsl,pins = < MX6QDL_PAD_GPIO_7__FLEXCAN1_TX 0x1b0b0 MX6QDL_PAD_GPIO_8__FLEXCAN1_RX 0x1b0b0 >; }; - pinctrl_flexcan2: flexcan2grp { + pinctrl_flexcan1_sleep: flexcan1slpgrp { + fsl,pins = < + MX6QDL_PAD_GPIO_7__GPIO1_IO07 0x0 + MX6QDL_PAD_GPIO_8__GPIO1_IO08 0x0 + >; + }; + + pinctrl_flexcan2_default: flexcan2defgrp { fsl,pins = < MX6QDL_PAD_KEY_COL4__FLEXCAN2_TX 0x1b0b0 MX6QDL_PAD_KEY_ROW4__FLEXCAN2_RX 0x1b0b0 >; }; + pinctrl_flexcan2_sleep: flexcan2slpgrp { + fsl,pins = < + MX6QDL_PAD_KEY_COL4__GPIO4_IO14 0x0 + MX6QDL_PAD_KEY_ROW4__GPIO4_IO15 0x0 + >; + }; pinctrl_gpio_bl_on: gpioblon { fsl,pins = <
This patch prepares the devicetree for the new Ixora V1.2 where we are able to turn off the supply of the can transceiver. This implies to use a sleep state on transmission pins in order to prevent backfeeding. Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com> --- Changes in v3: None Changes in v2: - Changed commit title to '...imx6qdl-apalis:...' arch/arm/boot/dts/imx6qdl-apalis.dtsi | 27 +++++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-)