Re: [PATCH v3 2/2] phy: mediatek: Add support for MT8196 MIPI DSI PHY

[AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>]

On 7/14/26 18:42, Vinod Koul wrote:
> On 13-07-26, 12:38, AngeloGioacchino Del Regno wrote:
>> Add support for the MIPI DSI PHY found in the MediaTek MT8196 SoC
>> and its variants.
>> This PHY has a different register layout and provides support for
>> more hardware features compared to the previous generation.
>>
>> This initial driver only adds support for basic functionality that
>> is necessary to drive MIPI DSI displays as a D-PHY.
>>
>> Feature additions like lane-swap, DPHY/CPHY switching, dual-port,
>> and others, may be done in the future.
> 
> This seems to fail to build
> 
> https://patchwork.kernel.org/project/linux-phy/patch/20260713103805.23030-2-angelogioacchino.delregno@collabora.com/
> 

The failure in your log is:

make[7]: *** Deleting file 'drivers/gpu/drm/msm/msm_gem.o'
Segmentation fault (core dumped)
make[7]: *** [../scripts/Makefile.build:289: drivers/gpu/drm/msm/msm_gem.o] Error 139
make[6]: *** [../scripts/Makefile.build:549: drivers/gpu/drm/msm] Error 2

...your build server is experiencing some hardware issues maybe? :-)


In any case, I've just rechecked this series, and it builds fine here, with:

ce1b90b20bbc (HEAD) phy: mediatek: Add support for MT8196 MIPI DSI PHY
522a9d162c98 dt-bindings: phy: mediatek,dsi-phy: Add support for MT8196
49362394dad7 (tag: next-20260713, next/master, next/HEAD) Add linux-next specific 
files for 20260713

With CONFIG_PHY_MTK_MIPI_DSI=m :
   AR      drivers/phy/mediatek/built-in.a
   CC [M]  drivers/phy/mediatek/phy-mtk-mipi-dsi.o
   CC [M]  drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.o
   CC [M]  drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8183.o
   CC [M]  drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8196.o
   UPD     kernel/config_data
   GZIP    kernel/config_data.gz
   CC      kernel/configs.o
   LD [M]  drivers/phy/mediatek/phy-mtk-mipi-dsi-drv.o
   AR      drivers/phy/built-in.a
   AR      kernel/built-in.a
   AR      drivers/built-in.a
   AR      built-in.a
   AR      built-in-fixup.a
   COPY    vmlinux.a
   LD      vmlinux.o
   MODPOST Module.symvers
   CC      .vmlinux.export.o
   UPD     include/generated/utsversion.h
   CC      init/version-timestamp.o
   KSYMS   .tmp_vmlinux0.kallsyms.S
   AS      .tmp_vmlinux0.kallsyms.o
   LD      .tmp_vmlinux1
   LD [M]  drivers/phy/mediatek/phy-mtk-mipi-dsi-drv.ko
   NM      .tmp_vmlinux1.syms
......[ etc etc ]......


With CONFIG_PHY_MTK_MIPI_DSI=y :

   CC      drivers/phy/mediatek/phy-mtk-mipi-dsi.o
   CC      drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.o
   CC      drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8183.o
   CC      drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8196.o
   UPD     kernel/config_data
   GZIP    kernel/config_data.gz
   CC      kernel/configs.o
   AR      drivers/phy/mediatek/built-in.a
   AR      drivers/phy/built-in.a
   AR      kernel/built-in.a
   AR      drivers/built-in.a
   AR      built-in.a
   AR      built-in-fixup.a
   COPY    vmlinux.a
   LD      vmlinux.o
   MODPOST Module.symvers
......[ etc etc ]......


Regards,
Angelo