[PATCH v1] arm64: dts: imx8-apalis: set wifi regulator to always-on

Francesco Dolcini posted 1 patch 2 years ago
arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
[PATCH v1] arm64: dts: imx8-apalis: set wifi regulator to always-on
Posted by Francesco Dolcini 2 years ago
From: Stefan Eichenberger <stefan.eichenberger@toradex.com>

Make sure that the wifi regulator is always on. The wifi driver itself
puts the wifi module into suspend mode. If we cut the power the driver
will crash when resuming from suspend.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
 arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi b/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi
index 5ce5fbf2b38e..f69b0c17560a 100644
--- a/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi
@@ -82,12 +82,9 @@ reg_module_wifi: regulator-module-wifi {
 		pinctrl-0 = <&pinctrl_wifi_pdn>;
 		gpio = <&lsio_gpio1 28 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
+		regulator-always-on;
 		regulator-name = "wifi_pwrdn_fake_regulator";
 		regulator-settling-time-us = <100>;
-
-		regulator-state-mem {
-			regulator-off-in-suspend;
-		};
 	};
 
 	reg_pcie_switch: regulator-pcie-switch {
-- 
2.25.1
Re: [PATCH v1] arm64: dts: imx8-apalis: set wifi regulator to always-on
Posted by Fabio Estevam 2 years ago
Hi Francesco,

On Thu, Nov 23, 2023 at 7:48 AM Francesco Dolcini <francesco@dolcini.it> wrote:
>
> From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
>
> Make sure that the wifi regulator is always on. The wifi driver itself
> puts the wifi module into suspend mode. If we cut the power the driver
> will crash when resuming from suspend.
>
> Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>

I think this one deserves a Fixes tag.
Re: [PATCH v1] arm64: dts: imx8-apalis: set wifi regulator to always-on
Posted by Francesco Dolcini 2 years ago
Hello Fabio,

On Thu, Nov 23, 2023 at 07:52:27AM -0300, Fabio Estevam wrote:
> On Thu, Nov 23, 2023 at 7:48 AM Francesco Dolcini <francesco@dolcini.it> wrote:
> >
> > From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> >
> > Make sure that the wifi regulator is always on. The wifi driver itself
> > puts the wifi module into suspend mode. If we cut the power the driver
> > will crash when resuming from suspend.
> >
> > Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> > Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
> 
> I think this one deserves a Fixes tag.

Fixes: ad0de4ceb706 ("arm64: dts: freescale: add initial apalis imx8 aka quadmax module support")

Shawn, I assume you could just pick the Fixes tag without me sending a
v2, if you disagree just speak-up.

Francesco

Re: [PATCH v1] arm64: dts: imx8-apalis: set wifi regulator to always-on
Posted by Shawn Guo 2 years ago
On Thu, Nov 23, 2023 at 11:56:39AM +0100, Francesco Dolcini wrote:
> Hello Fabio,
> 
> On Thu, Nov 23, 2023 at 07:52:27AM -0300, Fabio Estevam wrote:
> > On Thu, Nov 23, 2023 at 7:48 AM Francesco Dolcini <francesco@dolcini.it> wrote:
> > >
> > > From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> > >
> > > Make sure that the wifi regulator is always on. The wifi driver itself
> > > puts the wifi module into suspend mode. If we cut the power the driver
> > > will crash when resuming from suspend.
> > >
> > > Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> > > Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
> > 
> > I think this one deserves a Fixes tag.
> 
> Fixes: ad0de4ceb706 ("arm64: dts: freescale: add initial apalis imx8 aka quadmax module support")
> 
> Shawn, I assume you could just pick the Fixes tag without me sending a
> v2, if you disagree just speak-up.

Applied with the Fixes tag, thanks!