* [PATCH v1 2/2] ARM: dts: imx6q-apalis: add can power-up delay on ixora board [not found] <20231020153022.57858-1-andrejs.cainikovs@gmail.com> @ 2023-10-20 15:30 ` Andrejs Cainikovs 2023-11-27 2:52 ` Shawn Guo 0 siblings, 1 reply; 3+ messages in thread From: Andrejs Cainikovs @ 2023-10-20 15:30 UTC (permalink / raw) To: Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team, devicetree, linux-arm-kernel, linux-kernel Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo, Sascha Hauer, Andrejs Cainikovs, stable From: Andrejs Cainikovs <andrejs.cainikovs@toradex.com> Newer variants of Ixora boards require a power-up delay when powering up the CAN transceiver of up to 1ms. Cc: stable@vger.kernel.org Signed-off-by: Andrejs Cainikovs <andrejs.cainikovs@toradex.com> --- arch/arm/boot/dts/nxp/imx/imx6q-apalis-ixora-v1.2.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/nxp/imx/imx6q-apalis-ixora-v1.2.dts b/arch/arm/boot/dts/nxp/imx/imx6q-apalis-ixora-v1.2.dts index 717decda0ceb..3ac7a4501620 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6q-apalis-ixora-v1.2.dts +++ b/arch/arm/boot/dts/nxp/imx/imx6q-apalis-ixora-v1.2.dts @@ -76,6 +76,7 @@ reg_can1_supply: regulator-can1-supply { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_enable_can1_power>; regulator-name = "can1_supply"; + startup-delay-us = <1000>; }; reg_can2_supply: regulator-can2-supply { @@ -85,6 +86,7 @@ reg_can2_supply: regulator-can2-supply { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_enable_can2_power>; regulator-name = "can2_supply"; + startup-delay-us = <1000>; }; }; -- 2.34.1 ^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v1 2/2] ARM: dts: imx6q-apalis: add can power-up delay on ixora board 2023-10-20 15:30 ` [PATCH v1 2/2] ARM: dts: imx6q-apalis: add can power-up delay on ixora board Andrejs Cainikovs @ 2023-11-27 2:52 ` Shawn Guo 2023-11-27 10:13 ` Francesco Dolcini 0 siblings, 1 reply; 3+ messages in thread From: Shawn Guo @ 2023-11-27 2:52 UTC (permalink / raw) To: Andrejs Cainikovs Cc: Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team, devicetree, linux-arm-kernel, linux-kernel, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Sascha Hauer, Andrejs Cainikovs, stable On Fri, Oct 20, 2023 at 05:30:22PM +0200, Andrejs Cainikovs wrote: > From: Andrejs Cainikovs <andrejs.cainikovs@toradex.com> > > Newer variants of Ixora boards require a power-up delay when powering up > the CAN transceiver of up to 1ms. > > Cc: stable@vger.kernel.org Why is only the iMX6 change required for stable? Shawn > Signed-off-by: Andrejs Cainikovs <andrejs.cainikovs@toradex.com> > --- > arch/arm/boot/dts/nxp/imx/imx6q-apalis-ixora-v1.2.dts | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/arm/boot/dts/nxp/imx/imx6q-apalis-ixora-v1.2.dts b/arch/arm/boot/dts/nxp/imx/imx6q-apalis-ixora-v1.2.dts > index 717decda0ceb..3ac7a4501620 100644 > --- a/arch/arm/boot/dts/nxp/imx/imx6q-apalis-ixora-v1.2.dts > +++ b/arch/arm/boot/dts/nxp/imx/imx6q-apalis-ixora-v1.2.dts > @@ -76,6 +76,7 @@ reg_can1_supply: regulator-can1-supply { > pinctrl-names = "default"; > pinctrl-0 = <&pinctrl_enable_can1_power>; > regulator-name = "can1_supply"; > + startup-delay-us = <1000>; > }; > > reg_can2_supply: regulator-can2-supply { > @@ -85,6 +86,7 @@ reg_can2_supply: regulator-can2-supply { > pinctrl-names = "default"; > pinctrl-0 = <&pinctrl_enable_can2_power>; > regulator-name = "can2_supply"; > + startup-delay-us = <1000>; > }; > }; > > -- > 2.34.1 > ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v1 2/2] ARM: dts: imx6q-apalis: add can power-up delay on ixora board 2023-11-27 2:52 ` Shawn Guo @ 2023-11-27 10:13 ` Francesco Dolcini 0 siblings, 0 replies; 3+ messages in thread From: Francesco Dolcini @ 2023-11-27 10:13 UTC (permalink / raw) To: Shawn Guo Cc: Andrejs Cainikovs, Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team, devicetree, linux-arm-kernel, linux-kernel, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Sascha Hauer, Andrejs Cainikovs, stable On Mon, Nov 27, 2023 at 10:52:18AM +0800, Shawn Guo wrote: > On Fri, Oct 20, 2023 at 05:30:22PM +0200, Andrejs Cainikovs wrote: > > From: Andrejs Cainikovs <andrejs.cainikovs@toradex.com> > > > > Newer variants of Ixora boards require a power-up delay when powering up > > the CAN transceiver of up to 1ms. > > > > Cc: stable@vger.kernel.org > > Why is only the iMX6 change required for stable? From what I know currently apalis-imx8 is not yet used in products with a mainline kernel therefore the assumption that the backporting would add very small value, however maybe is better to just backport both to stable. Francesco ^ permalink raw reply [flat|nested] 3+ messages in thread
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[not found] <20231020153022.57858-1-andrejs.cainikovs@gmail.com>
2023-10-20 15:30 ` [PATCH v1 2/2] ARM: dts: imx6q-apalis: add can power-up delay on ixora board Andrejs Cainikovs
2023-11-27 2:52 ` Shawn Guo
2023-11-27 10:13 ` Francesco Dolcini
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