Changes in Kconfig

9958d30f - media: Kconfig: cleanup VIDEO_DEV dependencies

Sun, 13 Mar 2022 06:25:46 +0000

media: Kconfig: cleanup VIDEO_DEV dependenciesmedia Kconfig has two entries associated to V4L API:VIDEO_DEV and VIDEO_V4L2.On Kernel 2.6.x, there were two V4L APIs, each one with its own flag.VIDEO_DEV were meant to: 1) enable Video4Linux and make its Kconfig options to appear; 2) it makes the Kernel build the V4L core.while VIDEO_V4L2 where used to distinguish between drivers thatimplement the newer API and drivers that implemented the former one.With time, such meaning changed, specially after the removal ofall V4L version 1 drivers.At the current implementation, VIDEO_DEV only does (1): it enablesthe media options related to V4L, that now has: menu "Video4Linux options" visible if VIDEO_DEV source "drivers/media/v4l2-core/Kconfig" endmenubut it doesn't affect anymore the V4L core drivers.The rationale is that the V4L2 core has a "soft" dependencyat the I2C bus, and now requires to select a number of otherKconfig options: config VIDEO_V4L2 tristate depends on (I2C || I2C=n) && VIDEO_DEV select RATIONAL select VIDEOBUF2_V4L2 if VIDEOBUF2_CORE default (I2C || I2C=n) && VIDEO_DEVIn the past, merging them would be tricky, but it seems that it is nowpossible to merge those symbols, in order to simplify V4L dependencies.Let's keep VIDEO_DEV, as this one is used on some make *defconfigconfigurations.Suggested-by: Laurent Pinchart Reviewed-by: Laurent Pinchart Reviewed-by: Jacopo Mondi Reviewed-by: Neil Armstrong # for meson-vdec & meson-ge2dAcked-by: Andrzej Pietrasiewicz Acked-by: Łukasz Stelmach Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/test-drivers/vimc/Kconfig

4a2e0a80 - media: vimc: Add support for contiguous DMA buffers

Fri, 30 Jul 2021 13:18:29 +0000

media: vimc: Add support for contiguous DMA buffersThe vimc driver is used for testing purpose, and some test use casesinvolve sharing buffers with a consumer device. Consumers often requireDMA contiguous memory, which vimc doesn't currently support. This leadsin the best case to usage of bounce buffers, which is very slow, and inthe worst case in a complete failure.Add support for the dma-contig allocator in vimc to support those usecases properly. The allocator is selected through a new "allocator"module parameter, which defaults to vmalloc.[hverkuil: add missing 'select VIDEOBUF2_DMA_CONFIG' to Kconfig]Signed-off-by: Laurent Pinchart Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/test-drivers/vimc/Kconfig

5f3fb5c5 - media: vimc: Add a control to display info on test image

Sun, 05 Jul 2020 13:53:06 +0000

media: vimc: Add a control to display info on test imageAdd a control in VIMC to display information such as the correct order ofcolors for a given test pattern, counter, brightness, hue, saturation,contrast, width and height at sensor over test image.Signed-off-by: Kaaira Gupta Acked-by: Helen Koike Reviewed-by: Kieran Bingham Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/test-drivers/vimc/Kconfig

dacca5f0 - media: media/test_drivers: rename to test-drivers

Thu, 16 Apr 2020 08:25:59 +0000

media: media/test_drivers: rename to test-driversWe never use _ in directory names in the media subsystem, sorename to test-drivers instead for consistency.Also update MAINTAINERS with the new path.Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/test-drivers/vimc/Kconfig