linux-dev/drivers/staging/media/ipu3, branch master

media: drivers: use video device pipeline start/stop

2022-09-24T07:14:20Z

Convert the media drivers to use video device based pipeline start/stop where possible. Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: ipu3-imgu: Fix NULL pointer dereference in active selection access

2022-09-24T07:04:32Z

What the IMGU driver did was that it first acquired the pointers to active and try V4L2 subdev state, and only then figured out which one to use. The problem with that approach and a later patch (see Fixes: tag) is that as sd_state argument to v4l2_subdev_get_try_crop() et al is NULL, there is now an attempt to dereference that. Fix this. Also rewrap lines a little. Fixes: 0d346d2a6f54 ("media: v4l2-subdev: add subdev-wide state struct") Cc: stable@vger.kernel.org # for v5.14 and later Signed-off-by: Sakari Ailus Reviewed-by: Bingbu Cao Signed-off-by: Mauro Carvalho Chehab

media: staging: ipu3-imgu: Fix BNR wb gain documentation

2022-09-24T07:01:59Z

The documentation states that the BNR factor is a multiplier coded as u3.13 and with a range of (0, 8). This is not correct, as the isp is adding 1.0 to the gain applied, ie Pout = { Pin * (1 + Gx) }. It means that a gain of 1.0 should be coded as 0. Signed-off-by: Jean-Michel Hautbois Reviewed-by: Kieran Bingham Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: staging: media: ipu3: Fix AWB x_start position when rightmost stripe is used

2022-04-24T07:28:44Z

An not calibrated x_start setting would result in an incorrect AWB grid configuration on a sensor when only the rightmost stripe is used. If the AWB grid coordinate is set to the rightmost stripe, for example, x_start is greater than 640, the AWB grid will be at the rightmost edge of the sensor. The AWB statistic will be fetched from the wrong place of the sensor and results in an incorrect AWB estimation result. Therefore, stripe offset should subtract from x_start to have a correct grid configuration for the rightmost stripe. Signed-off-by: Kate Hsuan Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: staging/intel-ipu3: Cleanup dummy buffers via helper

2022-04-24T07:13:57Z

Use an existing helper imgu_video_nodes_exit() on imgu-video-node initialization failure path to cleanup dummy buffers. Signed-off-by: Umang Jain Reviewed-by: Laurent Pinchart Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: staging/intel-ipu3: Reset imgu_video_device sequence

2022-04-24T07:13:35Z

Reset the sequence number of imgu_video_device on stream start. Failing to do so results in sequence number getting incremented for consecutive stream on/off cycles. Signed-off-by: Umang Jain Reviewed-by: Laurent Pinchart Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: staging: media: ipu3-imgu: Request specific firmware binary

2022-04-24T07:12:48Z

Primarily request a specific revision of the IPU3 firmware that the driver is known to work with, irci_irci_ecr-master_20161208_0213_20170112_1500.bin. Some distros only ship this while others provide a symlink called ipu3-fw.bin, which the driver only requested previously. Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: staging: media: ipu3: Fix AF x_start position when rightmost stripe is used

2022-04-24T07:11:44Z

For the AF configuration, if the rightmost stripe is used, the AF scene will be at the incorrect location of the sensor. The AF coordinate may be set to the right part of the sensor. This configuration would lead to x_start being greater than the down_scaled_stripes offset and the leftmost stripe would be disabled and only the rightmost stripe is used to control the AF coordinate. If the x_start doesn't perform any adjustments, the AF coordinate will be at the wrong place of the sensor since down_scaled_stripes offset would be the new zero of the coordinate system. In this patch, if only the rightmost stripe is used, x_start should minus down_scaled_stripes offset to maintain its correctness of AF scene coordinate. Signed-off-by: Kate Hsuan Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: Kconfig: cleanup VIDEO_DEV dependencies

2022-03-18T04:58:35Z

media 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 that implement the newer API and drivers that implemented the former one. With time, such meaning changed, specially after the removal of all V4L version 1 drivers. At the current implementation, VIDEO_DEV only does (1): it enables the media options related to V4L, that now has: menu "Video4Linux options" visible if VIDEO_DEV source "drivers/media/v4l2-core/Kconfig" endmenu but it doesn't affect anymore the V4L core drivers. The rationale is that the V4L2 core has a "soft" dependency at the I2C bus, and now requires to select a number of other Kconfig 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_DEV In the past, merging them would be tricky, but it seems that it is now possible to merge those symbols, in order to simplify V4L dependencies. Let's keep VIDEO_DEV, as this one is used on some make *defconfig configurations. Suggested-by: Laurent Pinchart Reviewed-by: Laurent Pinchart Reviewed-by: Jacopo Mondi Reviewed-by: Neil Armstrong # for meson-vdec & meson-ge2d Acked-by: Andrzej Pietrasiewicz Acked-by: Łukasz Stelmach Signed-off-by: Mauro Carvalho Chehab

media: staging: ipu3-imgu: add the AWB memory layout

2021-12-16T19:54:52Z

While parsing the RAW AWB metadata, the AWB layout was missing to fully understand which byte corresponds to which feature. Make the field names and usage explicit, as it is used by the userspace applications. [Sakari Ailus: Changed wording of sat_ratio field as per review comments, fixed a whitespace issue.] Signed-off-by: Jean-Michel Hautbois Reviewed-by: Laurent Pinchart Reviewed-by: Bingbu Cao Reviewed-by: Tomasz Figa Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab