[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 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
>>
> 
>