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

[Luca Leonardo Scorcia]

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.

Il giorno mer 11 feb 2026 alle ore 20:06 Luca Leonardo Scorcia
<l.scorcia at gmail.com> 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 at gmail.com>
> ---
>  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 at 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 at 14000000 {
>                         compatible = "mediatek,mt8167-mmsys", "syscon";
>                         reg = <0 0x14000000 0 0x1000>;
>                         #clock-cells = <1>;
> +                       #reset-cells = <1>;
>                 };
>
>                 smi_common: smi at 14017000 {
> --
> 2.43.0
>


-- 
Luca Leonardo Scorcia
l.scorcia at gmail.com