[PATCH 6/7] tegra: enable VDE driver

[Tomasz Maciej Nowak]

W dniu 17.05.2024 o 16:16, Hauke Mehrtens pisze:
> On 5/15/24 8:05 PM, Tomasz Maciej Nowak wrote:
>> From: Tomasz Maciej Nowak <tmn505 at gmail.com>
>>
>> This drives power domain responsible for clean reboot on at least
>> Tegra 2 devices.
>>
>> Signed-off-by: Tomasz Maciej Nowak <tmn505 at gmail.com>
> 
> Hi,

Hi

> Could you explain this change a bit more.

Will do.

> My do you deactivate the kmod-video-mem2mem and kmod-video-dma?
> Do you build it into the kernel and it was not automatically deactivated?

I didn't investigate it thoroughly, but when I built it with CONFIG_ALL_KMODS
the build system always complained about missing .ko files. It might be that some
kmod depends on these packages and HIDDEN attribute forces them to be created?
Normally the faulty packages should end up empty.
I'll try to get to the bottom of this or try to build VDE driver as module, since
the issue is with reboot we can load VDE later (unless something unloads it
earlier).

> Hauke
> 
>> ---
>>   package/kernel/linux/modules/video.mk |  4 ++--
>>   target/linux/tegra/config-6.6         | 20 ++++++++++++++++++++
>>   2 files changed, 22 insertions(+), 2 deletions(-)
>>
>> diff --git a/package/kernel/linux/modules/video.mk b/package/kernel/linux/modules/video.mk
>> index dc1953279e43..0fae20b7700c 100644
>> --- a/package/kernel/linux/modules/video.mk
>> +++ b/package/kernel/linux/modules/video.mk
>> @@ -1157,7 +1157,7 @@ define KernelPackage/video-mem2mem
>>     SUBMENU:=$(VIDEO_MENU)
>>     TITLE:=Memory 2 Memory device support
>>     HIDDEN:=1
>> -  DEPENDS:=+kmod-video-videobuf2
>> +  DEPENDS:=@!TARGET_tegra_generic +kmod-video-videobuf2
>>     KCONFIG:= \
>>       CONFIG_V4L_MEM2MEM_DRIVERS=y \
>>       CONFIG_V4L2_MEM2MEM_DEV
>> @@ -1176,7 +1176,7 @@ define KernelPackage/video-dma
>>     SUBMENU:=$(VIDEO_MENU)
>>     TITLE:=Video DMA support
>>     HIDDEN:=1
>> -  DEPENDS:=+kmod-video-videobuf2
>> +  DEPENDS:=@!TARGET_tegra_generic +kmod-video-videobuf2
>>     KCONFIG:= \
>>       CONFIG_VIDEOBUF2_DMA_CONTIG \
>>       CONFIG_VIDEOBUF2_DMA_SG
>> diff --git a/target/linux/tegra/config-6.6 b/target/linux/tegra/config-6.6
>> index 4326326d3c89..c3ffff01dc6f 100644
>> --- a/target/linux/tegra/config-6.6
>> +++ b/target/linux/tegra/config-6.6
>> @@ -298,6 +298,12 @@ CONFIG_LZ4_COMPRESS=y
>>   CONFIG_LZ4_DECOMPRESS=y
>>   CONFIG_LZO_COMPRESS=y
>>   CONFIG_LZO_DECOMPRESS=y
>> +CONFIG_MEDIA_CONTROLLER=y
>> +CONFIG_MEDIA_CONTROLLER_REQUEST_API=y
>> +CONFIG_MEDIA_PLATFORM_DRIVERS=y
>> +CONFIG_MEDIA_PLATFORM_SUPPORT=y
>> +CONFIG_MEDIA_SUPPORT=y
>> +CONFIG_MEDIA_SUPPORT_FILTER=y
>>   CONFIG_MEMORY=y
>>   CONFIG_MEMORY_ISOLATION=y
>>   # CONFIG_MFD_ACER_A500_EC is not set
>> @@ -494,6 +500,8 @@ CONFIG_SPI_TEGRA20_SFLASH=y
>>   CONFIG_SPI_TEGRA20_SLINK=y
>>   # CONFIG_SPI_TEGRA210_QUAD is not set
>>   CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU=y
>> +CONFIG_SRAM=y
>> +CONFIG_SRAM_EXEC=y
>>   CONFIG_SWP_EMULATE=y
>>   CONFIG_SYNC_FILE=y
>>   CONFIG_SYS_SUPPORTS_APM_EMULATION=y
>> @@ -544,10 +552,22 @@ CONFIG_USB_ULPI_BUS=y
>>   CONFIG_USB_ULPI_VIEWPORT=y
>>   # CONFIG_USB_XHCI_TEGRA is not set
>>   CONFIG_USE_OF=y
>> +CONFIG_V4L2_H264=y
>> +CONFIG_V4L2_MEM2MEM_DEV=y
>> +CONFIG_V4L_MEM2MEM_DRIVERS=y
>> +CONFIG_V4L_PLATFORM_DRIVERS=y
>>   CONFIG_VFP=y
>>   CONFIG_VFPv3=y
>> +CONFIG_VIDEOBUF2_CORE=y
>> +CONFIG_VIDEOBUF2_DMA_CONTIG=y
>> +CONFIG_VIDEOBUF2_DMA_SG=y
>> +CONFIG_VIDEOBUF2_MEMOPS=y
>> +CONFIG_VIDEOBUF2_V4L2=y
>>   CONFIG_VIDEO_CMDLINE=y
>> +CONFIG_VIDEO_DEV=y
>>   CONFIG_VIDEO_NOMODESET=y
>> +CONFIG_VIDEO_TEGRA_VDE=y
>> +CONFIG_VIDEO_V4L2_I2C=y
>>   CONFIG_WATCHDOG_CORE=y
>>   # CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
>>   CONFIG_XPS=y
> 

-- 
TMN