| Message ID | 20211005152348.17325-1-tharvey@gateworks.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm64: dts: imx8mm-venice-gw7901.dts: disable pgc_gpumix | expand |
Am Dienstag, dem 05.10.2021 um 08:23 -0700 schrieb Tim Harvey: > Since commit d39d4bb15310 ("arm64: dts: imx8mm: add GPC node") the > GW7901 will hang during kernel init because it does not power the unused GPU > voltage rails on the IMX8MM. Disable pgc_gpumix to work around this. > > We also disable the GPU devices that depend on the gpumix power domain > to avoid them staying in a probe deferred state forever. > > Cc: Lucas Stach <l.stach@pengutronix.de> > Signed-off-by: Tim Harvey <tharvey@gateworks.com> > --- > .../boot/dts/freescale/imx8mm-venice-gw7901.dts | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts > index bafd5c8ea4e2..e0153ce35722 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts > +++ b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts > @@ -282,6 +282,14 @@ > }; > }; > > +&gpu_2d { > + status = "disabled"; > +}; > + > +&gpu_3d { > + status = "disabled"; > +}; > + > &i2c1 { > clock-frequency = <100000>; > pinctrl-names = "default"; > @@ -632,6 +640,10 @@ > status = "okay"; > }; > > +&pgc_gpumix { > + status = "disabled"; > +}; I suggest to also disable the pgc_gpu, as that one is in the same situation as the GPU devices and will stay in probe deferred state forever, as the gpumix domain is not available. Regards, Lucas > + > &uart1 { > pinctrl-names = "default"; > pinctrl-0 = <&pinctrl_uart1>, <&pinctrl_uart1_gpio>;
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts index bafd5c8ea4e2..e0153ce35722 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts @@ -282,6 +282,14 @@ }; }; +&gpu_2d { + status = "disabled"; +}; + +&gpu_3d { + status = "disabled"; +}; + &i2c1 { clock-frequency = <100000>; pinctrl-names = "default"; @@ -632,6 +640,10 @@ status = "okay"; }; +&pgc_gpumix { + status = "disabled"; +}; + &uart1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart1>, <&pinctrl_uart1_gpio>;
Since commit d39d4bb15310 ("arm64: dts: imx8mm: add GPC node") the GW7901 will hang during kernel init because it does not power the unused GPU voltage rails on the IMX8MM. Disable pgc_gpumix to work around this. We also disable the GPU devices that depend on the gpumix power domain to avoid them staying in a probe deferred state forever. Cc: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Tim Harvey <tharvey@gateworks.com> --- .../boot/dts/freescale/imx8mm-venice-gw7901.dts | 12 ++++++++++++ 1 file changed, 12 insertions(+)