Re: [PATCH 6/7] arm64: dts: mt8167: Add the mmsys reset bit to reset dsi

[AngeloGioacchino Del Regno]

Il 12/02/26 09:01, Luca Leonardo Scorcia ha scritto:
> I apologize for the mistake, I did not notice that the dsi node is not
> present upstream yet, so this specific patch won't apply. Any comments
> are appreciated though!
> I will send a separate patch to add the display nodes to the dts and
> the required compatibles to the bindings.

Initially, I didn't notice either.

P.S.: resets goes after phy (alphabetical order)

Cheers

> Il giorno mer 11 feb 2026 alle ore 20:06 Luca Leonardo Scorcia
> <l.scorcia@xxxxxxxxx> ha scritto:
> > DSI hardware reset is needed to prevent different settings between
> > the bootloader and the kernel.
> >
> > Signed-off-by: Luca Leonardo Scorcia <l.scorcia@xxxxxxxxx>
> > ---
> >   arch/arm64/boot/dts/mediatek/mt8167.dtsi | 3 +++
> >   1 file changed, 3 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/mediatek/mt8167.dtsi b/arch/arm64/boot/dts/mediatek/mt8167.dtsi
> > index caf51f203dd3..ee2792d53b2c 100644
> > --- a/arch/arm64/boot/dts/mediatek/mt8167.dtsi
> > +++ b/arch/arm64/boot/dts/mediatek/mt8167.dtsi
> > @@ -8,6 +8,7 @@
> >   #include <dt-bindings/clock/mt8167-clk.h>
> >   #include <dt-bindings/memory/mt8167-larb-port.h>
> >   #include <dt-bindings/power/mt8167-power.h>
> > +#include <dt-bindings/reset/mt8167-resets.h>
> >
> >   #include "mt8167-pinfunc.h"
> >
> > @@ -189,6 +190,7 @@ dsi: dsi@14012000 {
> >                                   <&mmsys CLK_MM_DSI_DIGITAL>,
> >                                   <&mipi_tx>;
> >                          clock-names = "engine", "digital", "hs";
> > +                       resets = <&mmsys MT8167_MMSYS_SW0_RST_B_DISP_DSI0>;
> >                          phys = <&mipi_tx>;
> >                          phy-names = "dphy";
> >                          status = "disabled";
> > @@ -295,6 +297,7 @@ mmsys: syscon@14000000 {
> >                          compatible = "mediatek,mt8167-mmsys", "syscon";
> >                          reg = <0 0x14000000 0 0x1000>;
> >                          #clock-cells = <1>;
> > +                       #reset-cells = <1>;
> >                  };
> >
> >                  smi_common: smi@14017000 {
> > --
> > 2.43.0