platform/kernel/linux-starfive.git
3 years agomedia: atmel: atmel-isc-base: add support for more formats and additional pipeline...
Eugen Hristev [Tue, 13 Apr 2021 10:57:25 +0000 (12:57 +0200)]
media: atmel: atmel-isc-base: add support for more formats and additional pipeline modules

Add support for additional formats supported by newer pipelines, and for
additional pipeline modules.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc-regs: add additional fields for sama7g5 type pipeline
Eugen Hristev [Tue, 13 Apr 2021 10:57:24 +0000 (12:57 +0200)]
media: atmel: atmel-isc-regs: add additional fields for sama7g5 type pipeline

Add additional fields for registers present in sama7g5 type pipeline.
Extend register masks for additional bits in sama7g5 type pipeline registers.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: create an adapt pipeline callback for product specific
Eugen Hristev [Tue, 13 Apr 2021 10:57:23 +0000 (12:57 +0200)]
media: atmel: atmel-isc: create an adapt pipeline callback for product specific

Once the pipeline is set in the base code, create a callback that will adapt
the ISC pipeline to each product.
Create the adapt_pipeline callback that will be used in this fashion.

[hverkuil: made isc_sama5d2_adapt_pipeline static]

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: move the formats list into product specific code
Eugen Hristev [Tue, 13 Apr 2021 10:57:22 +0000 (12:57 +0200)]
media: atmel: atmel-isc: move the formats list into product specific code

The list of input and output formats has to be product specific.
Move this list into the product specific code.
Have pointers to these arrays inside the device struct.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: create callback for RLP submodule product specific
Eugen Hristev [Tue, 13 Apr 2021 10:57:21 +0000 (12:57 +0200)]
media: atmel: atmel-isc: create callback for RLP submodule product specific

The RLP submodule is a part of the atmel-isc pipeline, and stands for
Rounding,Limiting and Packaging. It used to extract specific data from the
ISC pipeline. For example if we want to output greyscale 8 bit, we would
use limiting to 8 bits, and packaging to Luma component only.

Create a product specific callback for initializing the RLP submodule
of the pipeline

[hverkuil: made isc_sama5d2_config_rlp static]

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: create callback for GAM submodule product specific
Eugen Hristev [Tue, 13 Apr 2021 10:57:20 +0000 (12:57 +0200)]
media: atmel: atmel-isc: create callback for GAM submodule product specific

The GAM submodule is a part of the atmel-isc pipeline, and stands for
Gamma Correction. It is used to apply the gamma curve to the incoming pixels.
Create a product specific callback for initializing the GAM submodule
of the pipeline.
For sama5d2 product, there is no special configuration at this moment,
thus this function is a noop.

[hverkuil: made isc_sama5d2_config_gam static]

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: create callback for DPC submodule product specific
Eugen Hristev [Tue, 13 Apr 2021 10:57:19 +0000 (12:57 +0200)]
media: atmel: atmel-isc: create callback for DPC submodule product specific

The DPC submodule is a part of the atmel-isc pipeline, and stands for
Defective Pixel Correction. Its purpose is to detect defective pixels and
correct them if possible with the help of adjacent pixels.
Create a product specific callback for initializing the DPC submodule
of the pipeline.
For sama5d2 product, this module does not exist, thus this function is a noop.

[hverkuil: made isc_sama5d2_config_dpc static]

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: create product specific v4l2 controls config
Eugen Hristev [Tue, 13 Apr 2021 10:57:18 +0000 (12:57 +0200)]
media: atmel: atmel-isc: create product specific v4l2 controls config

Create product specific callback for initializing v4l2 controls.
Call this from v4l2 controls init function.

[hverkuil: made isc_sama5d2_config_ctrls static]

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: add CC initialization function
Eugen Hristev [Tue, 13 Apr 2021 10:57:17 +0000 (12:57 +0200)]
media: atmel: atmel-isc: add CC initialization function

The CC submodule is a part of the atmel-isc pipeline, and stands for
Color Correction. It is used to apply gains and offsets to the
chroma (U, V) components of the YUV elements.
Implement the CC submodule initialization, as a product
specific function, which currently configures the neutral point in color
correction.

[hverkuil: made isc_sama5d2_config_cc static]

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: extend pipeline with extra modules
Eugen Hristev [Tue, 13 Apr 2021 10:57:16 +0000 (12:57 +0200)]
media: atmel: atmel-isc: extend pipeline with extra modules

Newer ISC pipelines have the additional modules of
Defective Pixel Correction -> DPC itself,
Defective Pixel Correction -> Green Disparity Correction (DPC_GDC)
Defective Pixel Correction -> Black Level Correction (DPC_BLC)
Vertical and Horizontal Scaler -> VHXS

Some products have this full pipeline (sama7g5), other products do not (sama5d2)

Add the modules to the isc base, and also extend the register range to include
the modules.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: add register description for additional modules
Eugen Hristev [Tue, 13 Apr 2021 10:57:15 +0000 (12:57 +0200)]
media: atmel: atmel-isc: add register description for additional modules

Add register description for additional pipeline modules: the
Defective Pixel Correction (DPC) and the Vertical and Horizontal Scaler(VHXS)

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: add his_entry to register offsets
Eugen Hristev [Tue, 13 Apr 2021 10:57:14 +0000 (12:57 +0200)]
media: atmel: atmel-isc: add his_entry to register offsets

Add his_entry to the reg offsets struct.
This will allow different products to have a different reg offset for this
particular module.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: add support for version register
Eugen Hristev [Tue, 13 Apr 2021 10:57:13 +0000 (12:57 +0200)]
media: atmel: atmel-isc: add support for version register

Add support for version register and print it at probe time.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: add DMA to register offsets
Eugen Hristev [Tue, 13 Apr 2021 10:57:12 +0000 (12:57 +0200)]
media: atmel: atmel-isc: add DMA to register offsets

The DMA submodule is a part of the atmel-isc pipeline, and stands for
Direct Memory Access. It acts like a master on the AXI bus of the SoC, and
can directly write the RAM area with the pixel data from the ISC internal
sram.
Add dma to the reg offsets struct.
This will allow different products to have a different reg offset for this
particular module.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: add HIS to register offsets
Eugen Hristev [Tue, 13 Apr 2021 10:57:11 +0000 (12:57 +0200)]
media: atmel: atmel-isc: add HIS to register offsets

The HIS submodule is a part of the atmel-isc pipeline, and stands for
Histogram. This module performs a color histogram that can be read and used
by the main processor.
Add his to the reg offsets struct.
This will allow different products to have a different reg offset for this
particular module.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: add RLP to register offsets
Eugen Hristev [Tue, 13 Apr 2021 10:57:10 +0000 (12:57 +0200)]
media: atmel: atmel-isc: add RLP to register offsets

The RLP submodule is a part of the atmel-isc pipeline, and stands for
Rounding,Limiting and Packaging. It used to extract specific data from the
ISC pipeline. For example if we want to output greyscale 8 bit, we would
use limiting to 8 bits, and packaging to Luma component only.
Add rlp to the reg offsets struct.
This will allow different products to have a different reg offset for this
particular module.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: add SUB422 and SUB420 to register offsets
Eugen Hristev [Tue, 13 Apr 2021 10:57:09 +0000 (12:57 +0200)]
media: atmel: atmel-isc: add SUB422 and SUB420 to register offsets

The SUB submodules are a part of the atmel-isc pipeline, and stand for
Subsampling. They are used to subsample the original YUV 4:4:4 pixel ratio
aspect to either 4:2:2 or 4:2:0.
Add sub420 and sub422 to the reg offsets struct.
This will allow different products to have a different reg offset for these
particular modules.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: add CBC to the reg offsets struct
Eugen Hristev [Tue, 13 Apr 2021 10:57:08 +0000 (12:57 +0200)]
media: atmel: atmel-isc: add CBC to the reg offsets struct

The CBC submodule is a part of the atmel-isc pipeline, and stands for
Contrast Brightness Control. It is used to apply gains and offsets to the
luma (Y) and chroma (U, V) components of the YUV elements.
Add cbc to the reg offsets struct. This will allow different products
to have a different reg offset for this particular module.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: extract CBC submodule config into separate function
Eugen Hristev [Tue, 13 Apr 2021 10:57:07 +0000 (12:57 +0200)]
media: atmel: atmel-isc: extract CBC submodule config into separate function

The CBC submodule is a part of the atmel-isc pipeline, and stands for
Contrast Brightness Control. It is used to apply gains and offsets to the
luma (Y) and chroma (U, V) components of the YUV elements.
The CBC submodule should be initialized in the product specific driver
as it's product specific. Other products can implement it differently

[hverkuil: made isc_sama5d2_config_cbc static]

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: create register offsets struct
Eugen Hristev [Tue, 13 Apr 2021 10:57:06 +0000 (12:57 +0200)]
media: atmel: atmel-isc: create register offsets struct

Create a struct that holds register offsets that are product specific.
Add initially the CSC register.
This allows each product that contains a variant of the ISC to add their
own register offset.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc-base: add id to clock debug message
Eugen Hristev [Tue, 13 Apr 2021 10:57:05 +0000 (12:57 +0200)]
media: atmel: atmel-isc-base: add id to clock debug message

Add the clock id to the debug message regarding clock setup

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: extract CSC submodule config into separate function
Eugen Hristev [Tue, 13 Apr 2021 10:57:04 +0000 (12:57 +0200)]
media: atmel: atmel-isc: extract CSC submodule config into separate function

The CSC submodule is a part of the atmel-isc pipeline, and stands for
Color Space Conversion. It is used to apply a matrix transformation to
RGB pixels to convert them to the YUV components.
The CSC submodule should be initialized in the product specific driver
as it's product specific. Other products can implement it differently.

[hverkuil: made isc_sama5d2_config_csc static]

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: specialize dma cfg
Eugen Hristev [Tue, 13 Apr 2021 10:57:03 +0000 (12:57 +0200)]
media: atmel: atmel-isc: specialize dma cfg

The dma configuration (DCFG) is specific to the product.
Move this configuration in the product specific driver, and add the
field inside the driver struct.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: specialize max width and max height
Eugen Hristev [Tue, 13 Apr 2021 10:57:02 +0000 (12:57 +0200)]
media: atmel: atmel-isc: specialize max width and max height

Move the max width and max height constants to the product specific driver
and have them in the device struct.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: add checks for limiting frame sizes
Eugen Hristev [Tue, 13 Apr 2021 10:57:01 +0000 (12:57 +0200)]
media: atmel: atmel-isc: add checks for limiting frame sizes

When calling the subdev, certain subdev drivers will overwrite the
frame size and adding sizes which are beyond the ISC's capabilities.
Thus we need to ensure the frame size is cropped to the maximum caps.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: specialize driver name constant
Eugen Hristev [Tue, 13 Apr 2021 10:57:00 +0000 (12:57 +0200)]
media: atmel: atmel-isc: specialize driver name constant

The driver name constant must defined based on product driver, thus moving
the constant directly where it's required. This will allow each ISC based
product to define it's own name.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: specialize gamma table into product specific
Eugen Hristev [Tue, 13 Apr 2021 10:56:59 +0000 (12:56 +0200)]
media: atmel: atmel-isc: specialize gamma table into product specific

Separate the gamma table from the isc base file into the specific sama5d2
product file.
Add a pointer to the gamma table and entries count inside the platform
driver specific struct.

[hverkuil: made isc_sama5d2_gamma_table static]

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: hevc: Add sps_max_sub_layers_minus1 to v4l2_ctrl_hevc_sps
John Cox [Fri, 30 Apr 2021 16:48:13 +0000 (18:48 +0200)]
media: hevc: Add sps_max_sub_layers_minus1 to v4l2_ctrl_hevc_sps

sps_max_sub_layers_minus1 is needed if the driver wishes to determine
whether or not a frame might be used for reference.

Signed-off-by: John Cox <jc@kynesim.co.uk>
Reviewed-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: vivid: use vb2_queue_change_type
Tomi Valkeinen [Mon, 12 Apr 2021 11:02:11 +0000 (13:02 +0200)]
media: vivid: use vb2_queue_change_type

Use the new vb2_queue_change_type() function in .vidioc_reqbufs and
.vidioc_create_bufs instead of changing the queue type manually in
vidioc_s_fmt_vbi_cap() and vidioc_s_fmt_sliced_vbi_cap().

This allows for a more consistent behavior, as .vidioc_reqbufs and
.vidioc_create_bufs are when the queue will become "busy".

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: vivid: remove stream_sliced_vbi_cap field
Tomi Valkeinen [Mon, 12 Apr 2021 11:02:10 +0000 (13:02 +0200)]
media: vivid: remove stream_sliced_vbi_cap field

Vivid tracks the VBI capture mode in vivid_dev->stream_sliced_vbi_cap
field.  We can just look at the buffer type instead, and drop the field.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: videobuf2-v4l2.c: add vb2_queue_change_type() helper
Tomi Valkeinen [Mon, 12 Apr 2021 11:02:09 +0000 (13:02 +0200)]
media: videobuf2-v4l2.c: add vb2_queue_change_type() helper

On some platforms a video device can capture either video data or
metadata. The driver can implement vidioc functions for both video and
metadata, and use a single vb2_queue for the buffers. However, vb2_queue
requires choosing a single buffer type, which conflicts with the idea of
capturing either video or metadata.

The buffer type of vb2_queue can be changed, but it's not obvious how
this should be done in the drivers. To help this, add a new helper
function vb2_queue_change_type() which ensures the correct checks and
documents how it can be used.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: pci: tw5864: avoid usage of some characters
Mauro Carvalho Chehab [Wed, 2 Jun 2021 14:42:46 +0000 (16:42 +0200)]
media: pci: tw5864: avoid usage of some characters

There are several comments on this driver using those chars:

- U+2013 ('–'): EN DASH
- U+2018 ('‘'): LEFT SINGLE QUOTATION MARK
- U+2019 ('’'): RIGHT SINGLE QUOTATION MARK

They probably came from cut-and-pasting some texts found
elsewhere.

While there's nothing wrong on having those on comments in
C, it is better to use ASCII chars for those specific cases,
as the current variant doesn't really add any value.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: rc: ite-cir: replace some an EN DASH
Mauro Carvalho Chehab [Wed, 2 Jun 2021 14:42:49 +0000 (16:42 +0200)]
media: rc: ite-cir: replace some an EN DASH

Instead of using U+2013 ('–'): EN DASH, let's just use an
hyphen there, as this was probably introduced by some cut-and-paste
from some other place.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: saa7134: drop a NO-BREAK SPACE
Mauro Carvalho Chehab [Wed, 2 Jun 2021 14:42:45 +0000 (16:42 +0200)]
media: saa7134: drop a NO-BREAK SPACE

There are two spaces on a comment there, being one of them
an U+00a0 (' '): NO-BREAK SPACE.

Drop it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: allegro-dvt: avoid EN DASH char
Mauro Carvalho Chehab [Wed, 2 Jun 2021 14:42:42 +0000 (16:42 +0200)]
media: allegro-dvt: avoid EN DASH char

While there's nothing wrong with EN DASH on C code, this probably
came from some cut-and paste from an ITU-T table.
It sounds better to just an HYPHEN here.

Reviewed-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: rtl28xxu: replace a NO-BREAK SPACE character
Mauro Carvalho Chehab [Wed, 2 Jun 2021 14:42:39 +0000 (16:42 +0200)]
media: rtl28xxu: replace a NO-BREAK SPACE character

Instead of using:

- U+00a0 (' '): NO-BREAK SPACE

Use a normal white space.

This was probably introduced by some cut-and-paste.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: gspca: ov519: replace RIGHT SINGLE QUOTATION MARK
Mauro Carvalho Chehab [Wed, 2 Jun 2021 14:42:39 +0000 (16:42 +0200)]
media: gspca: ov519: replace RIGHT SINGLE QUOTATION MARK

Replace the occurences of the following character:

- U+2019 ('’'): RIGHT SINGLE QUOTATION MARK

By a normal single comma character.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: docs: move DVB audio/video docs to staging
Mauro Carvalho Chehab [Tue, 1 Jun 2021 09:41:39 +0000 (11:41 +0200)]
media: docs: move DVB audio/video docs to staging

The only upstream driver using the API described there is the
av7110 driver.

As the driver was moved to staging, move the API bits to staging
as well.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: dvb header files: move some headers to staging
Mauro Carvalho Chehab [Tue, 1 Jun 2021 09:31:30 +0000 (11:31 +0200)]
media: dvb header files: move some headers to staging

The audio, video and OSD APIs are used upstream only by the
av7110 driver, which was moved to staging.

So, move the corresponding header files to it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: ivtv: get rid of DVB deprecated ioctls
Mauro Carvalho Chehab [Tue, 1 Jun 2021 09:27:04 +0000 (11:27 +0200)]
media: ivtv: get rid of DVB deprecated ioctls

The ivtv driver has gained support a long time ago for audio
and video settings via V4L2 API.

Let's drop support of the duplicated controls implemented
abusing the DVB API.

Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agodocs: userspace-api: media: dvb: replace some characters
Mauro Carvalho Chehab [Wed, 2 Jun 2021 13:12:18 +0000 (15:12 +0200)]
docs: userspace-api: media: dvb: replace some characters

The conversion tools used during DocBook/LaTeX/html/Markdown->ReST
conversion and some cut-and-pasted text contain some characters that
aren't easily reachable on standard keyboards and/or could cause
troubles when parsed by the documentation build system.

Replace the occurences of the following characters:

- U+00a0 (' '): NO-BREAK SPACE
  as it can cause lines being truncated on PDF output
- U+2019 ('’'): RIGHT SINGLE QUOTATION MARK
- U+201c ('“'): LEFT DOUBLE QUOTATION MARK
- U+201d ('”'): RIGHT DOUBLE QUOTATION MARK

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agodocs: userspace-api: media: v4l: replace some characters
Mauro Carvalho Chehab [Wed, 2 Jun 2021 13:12:18 +0000 (15:12 +0200)]
docs: userspace-api: media: v4l: replace some characters

The conversion tools used during DocBook/LaTeX/html/Markdown->ReST
conversion and some cut-and-pasted text contain some characters that
aren't easily reachable on standard keyboards and/or could cause
troubles when parsed by the documentation build system.

Replace the occurences of the following characters:

- U+00a0 (' '): NO-BREAK SPACE
  as it can cause lines being truncated on PDF output
- U+2014 ('—'): EM DASH
- U+2019 ('’'): RIGHT SINGLE QUOTATION MARK

Note that Sphinx auto-translates '---' into EM DASH.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agodocs: userspace-api: media: fdl-appendix.rst: replace some characters
Mauro Carvalho Chehab [Wed, 2 Jun 2021 13:12:17 +0000 (15:12 +0200)]
docs: userspace-api: media: fdl-appendix.rst: replace some characters

The conversion tools used during DocBook/LaTeX/html/Markdown->ReST
conversion and some cut-and-pasted text contain some characters that
aren't easily reachable on standard keyboards and/or could cause
troubles when parsed by the documentation build system.

Replace the occurences of the following characters:

- U+201c ('“'): LEFT DOUBLE QUOTATION MARK
- U+201d ('”'): RIGHT DOUBLE QUOTATION MARK

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agodocs: driver-api: media: zoran: replace SOFT HYPHEN character
Mauro Carvalho Chehab [Wed, 2 Jun 2021 13:06:43 +0000 (15:06 +0200)]
docs: driver-api: media: zoran: replace SOFT HYPHEN character

Replace the occurences of the following character:

- U+00ad ('­'): SOFT HYPHEN
  as ASCII HYPHEN is preferred over SOFT HYPHEN

At least with some fonts, a SOFT HYPHEN is displayed as
a blank space.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agodocs: admin-guide: media: ipu3.rst: replace some characters
Mauro Carvalho Chehab [Wed, 2 Jun 2021 13:06:12 +0000 (15:06 +0200)]
docs: admin-guide: media: ipu3.rst: replace some characters

The conversion tools used during DocBook/LaTeX/html/Markdown->ReST
conversion and some cut-and-pasted text contain some characters that
aren't easily reachable on standard keyboards and/or could cause
troubles when parsed by the documentation build system.

Replace the occurences of the following characters:

- U+201c ('“'): LEFT DOUBLE QUOTATION MARK
- U+201d ('”'): RIGHT DOUBLE QUOTATION MARK

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: videobuf-dma-sg: void function return statements are not generally useful
lijian [Wed, 26 May 2021 09:47:12 +0000 (11:47 +0200)]
media: videobuf-dma-sg: void function return statements are not generally useful

void function videobuf_vm_close return statements are not generally useful,
so deleted the return in function videobuf_vm_close().

Signed-off-by: lijian <lijian@yulong.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: v4l2-dev.c: Modified the macro SET_VALID_IOCTL
lijian [Tue, 25 May 2021 09:41:48 +0000 (11:41 +0200)]
media: v4l2-dev.c: Modified the macro SET_VALID_IOCTL

Macros starting with if should be enclosed by a do - while loop
to avoid possible if/else logic defects.
So modified the macro SET_VALID_IOCTL with do - while loop.

[hverkuil: checkpatch: add parenthesis around 'ops']

Signed-off-by: lijian <lijian@yulong.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: imx: imx7_mipi_csis: Fix error return code in mipi_csis_async_register()
Wei Yongjun [Mon, 24 May 2021 13:35:51 +0000 (15:35 +0200)]
media: imx: imx7_mipi_csis: Fix error return code in mipi_csis_async_register()

Fix to return negative error code -EINVAL from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 88fc81388df9 ("media: imx: imx7_mipi_csis: Reject invalid data-lanes settings")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: rtl28xxu: fix zero-length control request
Johan Hovold [Mon, 24 May 2021 11:09:20 +0000 (13:09 +0200)]
media: rtl28xxu: fix zero-length control request

The direction of the pipe argument must match the request-type direction
bit or control requests may fail depending on the host-controller-driver
implementation.

Control transfers without a data stage are treated as OUT requests by
the USB stack and should be using usb_sndctrlpipe(). Failing to do so
will now trigger a warning.

Fix the zero-length i2c-read request used for type detection by
attempting to read a single byte instead.

Reported-by: syzbot+faf11bbadc5a372564da@syzkaller.appspotmail.com
Fixes: d0f232e823af ("[media] rtl28xxu: add heuristic to detect chip type")
Cc: stable@vger.kernel.org # 4.0
Cc: Antti Palosaari <crope@iki.fi>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: gspca/sunplus: fix zero-length control requests
Johan Hovold [Mon, 24 May 2021 11:09:19 +0000 (13:09 +0200)]
media: gspca/sunplus: fix zero-length control requests

The direction of the pipe argument must match the request-type direction
bit or control requests may fail depending on the host-controller-driver
implementation.

Control transfers without a data stage are treated as OUT requests by
the USB stack and should be using usb_sndctrlpipe(). Failing to do so
will now trigger a warning.

Fix the single zero-length control request which was using the
read-register helper, and update the helper so that zero-length reads
fail with an error message instead.

Fixes: 6a7eba24e4f0 ("V4L/DVB (8157): gspca: all subdrivers")
Cc: stable@vger.kernel.org # 2.6.27
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: gspca/gl860: fix zero-length control requests
Johan Hovold [Mon, 24 May 2021 11:09:18 +0000 (13:09 +0200)]
media: gspca/gl860: fix zero-length control requests

The direction of the pipe argument must match the request-type direction
bit or control requests may fail depending on the host-controller-driver
implementation.

Control transfers without a data stage are treated as OUT requests by
the USB stack and should be using usb_sndctrlpipe(). Failing to do so
will now trigger a warning.

Fix the gl860_RTx() helper so that zero-length control reads fail with
an error message instead. Note that there are no current callers that
would trigger this.

Fixes: 4f7cb8837cec ("V4L/DVB (12954): gspca - gl860: Addition of GL860 based webcams")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: staging: media: tegra-vde: add missing error return code in tegra_vde_probe()
Yang Yingliang [Sat, 22 May 2021 03:19:11 +0000 (05:19 +0200)]
media: staging: media: tegra-vde: add missing error return code in tegra_vde_probe()

Add missing return error code when pm_runtime_resume_and_get() failed.

Fixes: dc8276b78917 ("staging: media: tegra-vde: use pm_runtime_resume_and_get()")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: gspca/sq905: fix control-request direction
Johan Hovold [Fri, 21 May 2021 13:28:39 +0000 (15:28 +0200)]
media: gspca/sq905: fix control-request direction

The direction of the pipe argument must match the request-type direction
bit or control requests may fail depending on the host-controller-driver
implementation.

Fix the USB_REQ_SYNCH_FRAME request which erroneously used
usb_sndctrlpipe().

Fixes: 27d35fc3fb06 ("V4L/DVB (10639): gspca - sq905: New subdriver.")
Cc: stable@vger.kernel.org # 2.6.30
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: dtv5100: fix control-request directions
Johan Hovold [Fri, 21 May 2021 13:28:38 +0000 (15:28 +0200)]
media: dtv5100: fix control-request directions

The direction of the pipe argument must match the request-type direction
bit or control requests may fail depending on the host-controller-driver
implementation.

Fix the control requests which erroneously used usb_rcvctrlpipe().

Fixes: 8466028be792 ("V4L/DVB (8734): Initial support for AME DTV-5100 USB2.0 DVB-T")
Cc: stable@vger.kernel.org # 2.6.28
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: vicodec: Use _BITUL() macro in UAPI headers
Joe Richey [Fri, 21 May 2021 08:58:46 +0000 (10:58 +0200)]
media: vicodec: Use _BITUL() macro in UAPI headers

Replace BIT() in v4l2's UPAI header with _BITUL(). BIT() is not defined
in the UAPI headers and its usage may cause userspace build errors.

Fixes: 206bc0f6fb94 ("media: vicodec: mark the stateless FWHT API as stable")
Signed-off-by: Joe Richey <joerichey@google.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: uapi/linux/cec-funcs.h: set delay to 1 if unnused
Hans Verkuil [Fri, 21 May 2021 08:45:44 +0000 (10:45 +0200)]
media: uapi/linux/cec-funcs.h: set delay to 1 if unnused

If the audio_out_delay value is unused, then set it to 1, not 0.
The value 0 is reserved, and 1 is a much safer value since it
translates to a delay of (1 - 1) * 2 = 0 ms.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: drivers/media/usb/gspca/cpia1.c : fix spelling typo
Herman [Fri, 21 May 2021 08:36:29 +0000 (10:36 +0200)]
media: drivers/media/usb/gspca/cpia1.c : fix spelling typo

change 'then' into 'than'

Signed-off-by: Herman <yanshuaijun@yulong.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: drivers/media/platform/Rcar_jpu.c : fix typo issues
Herman [Fri, 21 May 2021 02:14:57 +0000 (04:14 +0200)]
media: drivers/media/platform/Rcar_jpu.c : fix typo issues

change 'requerment' into 'requirement'
change 'quantanization' into 'quantization'
change 'qantization' into 'quantization'

Signed-off-by: Herman <yanshuaijun@yulong.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: hantro: test the correct variable in probe()
Dan Carpenter [Thu, 20 May 2021 16:02:49 +0000 (18:02 +0200)]
media: hantro: test the correct variable in probe()

This should be testing "vpu->clocks[0].clk" instead of "vpu->clocks".

Fixes: eb4cacdfb998 ("media: hantro: add fallback handling for single irq/clk")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: drivers/media/usb/em28xx/em28xx-cards.c : fix typo issues
Herman [Thu, 20 May 2021 09:35:53 +0000 (11:35 +0200)]
media: drivers/media/usb/em28xx/em28xx-cards.c : fix typo issues

change 'Configuare' into 'Configure'
change 'Configuared' into 'Configured'

Signed-off-by: Herman <yanshuaijun@yulong.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: st-hva: Fix potential NULL pointer dereferences
Evgeny Novikov [Wed, 19 May 2021 12:04:49 +0000 (14:04 +0200)]
media: st-hva: Fix potential NULL pointer dereferences

When ctx_id >= HVA_MAX_INSTANCES in hva_hw_its_irq_thread() it tries to
access fields of ctx that is NULL at that point. The patch gets rid of
these accesses.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: v4l: cadence: Handle errors of clk_prepare_enable()
Evgeny Novikov [Tue, 18 May 2021 18:57:22 +0000 (20:57 +0200)]
media: v4l: cadence: Handle errors of clk_prepare_enable()

Handle errors of clk_prepare_enable() in csi2rx_get_resources().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: staging: media: zoran: change asm header
Corentin Labbe [Tue, 18 May 2021 12:41:13 +0000 (14:41 +0200)]
media: staging: media: zoran: change asm header

As asked by checkpatch, convert a asm/xxx header to a linux one.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: staging: media: zoran: fix kzalloc style
Corentin Labbe [Tue, 18 May 2021 12:41:12 +0000 (14:41 +0200)]
media: staging: media: zoran: fix kzalloc style

Prefer kzalloc(sizeof(*prt)...) over kzalloc(sizeof(struct.../

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: staging: media: zoran: remove blank line
Corentin Labbe [Tue, 18 May 2021 12:41:11 +0000 (14:41 +0200)]
media: staging: media: zoran: remove blank line

Minor style fix by removing useless blank line.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: staging: media: zoran: multiple assignments should be avoided
Corentin Labbe [Tue, 18 May 2021 12:41:10 +0000 (14:41 +0200)]
media: staging: media: zoran: multiple assignments should be avoided

Remove all multiple assignments.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: staging: media: zoran: remove detect_guest_activity
Corentin Labbe [Tue, 18 May 2021 12:41:09 +0000 (14:41 +0200)]
media: staging: media: zoran: remove detect_guest_activity

The detect_guest_activity function is no longer used, so lets removed it.

[hverkuil: remove dump_guests() as well as that too is now unused]

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: staging: media: zoran: fix some formatting issues
Wang Qing [Tue, 18 May 2021 11:49:08 +0000 (13:49 +0200)]
media: staging: media: zoran: fix some formatting issues

fixing WARNING: Possible repeated word: 'in' as "in in a VIDIOCSFBUF ioctl",
limit the number of words per line.

Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: zr364xx: fix memory leak in zr364xx_start_readpipe
Pavel Skripkin [Mon, 17 May 2021 19:18:14 +0000 (21:18 +0200)]
media: zr364xx: fix memory leak in zr364xx_start_readpipe

syzbot reported memory leak in zr364xx driver.
The problem was in non-freed urb in case of
usb_submit_urb() fail.

backtrace:
  [<ffffffff82baedf6>] kmalloc include/linux/slab.h:561 [inline]
  [<ffffffff82baedf6>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74
  [<ffffffff82f7cce8>] zr364xx_start_readpipe+0x78/0x130 drivers/media/usb/zr364xx/zr364xx.c:1022
  [<ffffffff84251dfc>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [inline]
  [<ffffffff84251dfc>] zr364xx_probe+0x6a3/0x851 drivers/media/usb/zr364xx/zr364xx.c:1516
  [<ffffffff82bb6507>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
  [<ffffffff826018a9>] really_probe+0x159/0x500 drivers/base/dd.c:576

Fixes: ccbf035ae5de ("V4L/DVB (12278): zr364xx: implement V4L2_CAP_STREAMING")
Cc: stable@vger.kernel.org
Reported-by: syzbot+af4fa391ef18efdd5f69@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: v4l: cadence: Handle errors of clk_prepare_enable()
Evgeny Novikov [Mon, 17 May 2021 12:49:18 +0000 (14:49 +0200)]
media: v4l: cadence: Handle errors of clk_prepare_enable()

Handle errors of clk_prepare_enable() in csi2tx_get_resources().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: st-delta: Remove redundant assignment to ret
Jiapeng Chong [Mon, 17 May 2021 10:09:20 +0000 (12:09 +0200)]
media: st-delta: Remove redundant assignment to ret

Variable ret is being assigned a value however the assignment is
never read, so this redundant assignment can be removed.

Clean up the following clang-analyzer warning:

drivers/media/platform/sti/delta/delta-v4l2.c:1010:4: warning: Value
stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores].

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: atmel: atmel-isc: Remove redundant assignment to i
Jiapeng Chong [Mon, 17 May 2021 10:07:48 +0000 (12:07 +0200)]
media: atmel: atmel-isc: Remove redundant assignment to i

Variable i is being assigned a value however the assignment is
never read, so this redundant assignment can be removed.

Clean up the following clang-analyzer warning:

drivers/media/platform/atmel/atmel-isc-base.c:975:2: warning: Value
stored to 'i' is never read [clang-analyzer-deadcode.DeadStores].

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: bdisp: remove redundant dev_err call in bdisp_probe()
Yang Yingliang [Mon, 17 May 2021 03:11:23 +0000 (05:11 +0200)]
media: bdisp: remove redundant dev_err call in bdisp_probe()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: tc358743: Fix error return code in tc358743_probe_of()
Zhen Lei [Sat, 15 May 2021 06:58:30 +0000 (08:58 +0200)]
media: tc358743: Fix error return code in tc358743_probe_of()

When the CSI bps per lane is not in the valid range, an appropriate error
code -EINVAL should be returned. However, we currently do not explicitly
assign this error code to 'ret'. As a result, 0 was incorrectly returned.

Fixes: 256148246852 ("[media] tc358743: support probe from device tree")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: media/test_drivers: Drop unnecessary NULL check after container_of
Guenter Roeck [Fri, 14 May 2021 15:27:34 +0000 (17:27 +0200)]
media: media/test_drivers: Drop unnecessary NULL check after container_of

The result of container_of() operations is never NULL unless the embedded
element is the first element of the structure. This is not the case here.
The NULL check is therefore unnecessary and misleading. Remove it.

This change was made automatically with the following Coccinelle script.

@@
type t;
identifier v;
statement s;
@@

<+...
(
  t v = container_of(...);
|
  v = container_of(...);
)
  ...
  when != v
- if (\( !v \| v == NULL \) ) s
...+>

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: au0828: fix a NULL vs IS_ERR() check
Dan Carpenter [Fri, 14 May 2021 14:20:38 +0000 (16:20 +0200)]
media: au0828: fix a NULL vs IS_ERR() check

The media_device_usb_allocate() function returns error pointers when
it's enabled and something goes wrong.  It can return NULL as well, but
only if CONFIG_MEDIA_CONTROLLER is disabled so that doesn't apply here.

Fixes: 812658d88d26 ("media: change au0828 to use Media Device Allocator API")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: mtk-vpu: Use devm_platform_ioremap_resource_byname
Ding Senjie [Fri, 14 May 2021 12:35:21 +0000 (14:35 +0200)]
media: mtk-vpu: Use devm_platform_ioremap_resource_byname

Use the devm_platform_ioremap_resource_byname() helper instead of
calling platform_get_resource_byname() and devm_ioremap_resource()
separately.

Signed-off-by: Ding Senjie <dingsenjie@yulong.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: meson: vdec: remove redundant initialization of variable reg_cur
Colin Ian King [Thu, 13 May 2021 22:03:17 +0000 (00:03 +0200)]
media: meson: vdec: remove redundant initialization of variable reg_cur

The variable reg_cur is being initialized with a value that is never
read, it is being updated later on. The assignment is redundant and
can be removed.

Addresses-Coverity: ("Unused value")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: rcar-csi2: Enable support for r8a77961
Niklas Söderlund [Thu, 13 May 2021 14:09:14 +0000 (16:09 +0200)]
media: rcar-csi2: Enable support for r8a77961

Enable support for M3-W+ (r8a77961).

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Tested-by: LUU HOAI <hoai.luu.ub@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: rcar-vin: Enable support for r8a77961
Niklas Söderlund [Thu, 13 May 2021 12:47:15 +0000 (14:47 +0200)]
media: rcar-vin: Enable support for r8a77961

Enable support for M3-W+ (r8a77961).

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Tested-by: LUU HOAI <hoai.luu.ub@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: radio: si4713: constify static struct v4l2_ioctl_ops
Rikard Falkeborn [Wed, 12 May 2021 17:35:14 +0000 (19:35 +0200)]
media: radio: si4713: constify static struct v4l2_ioctl_ops

The only usage of radio_si4713_ioctl_ops is to assign its address to the
ioctl_ops field in the video_device struct, which is a pointer to const.
Make it const to allow the compiler to put it in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: bt8xx: Fix a missing check bug in bt878_probe
Zheyu Ma [Wed, 12 May 2021 15:18:36 +0000 (17:18 +0200)]
media: bt8xx: Fix a missing check bug in bt878_probe

In 'bt878_irq', the driver calls 'tasklet_schedule', but this tasklet is
set in 'dvb_bt8xx_load_card' of another driver 'dvb-bt8xx'.
However, this two drivers are separate. The user may not load the
'dvb-bt8xx' driver when loading the 'bt8xx' driver, that is, the tasklet
has not been initialized when 'tasklet_schedule' is called, so it is
necessary to check whether the tasklet is initialized in 'bt878_probe'.

Fix this by adding a check at the end of bt878_probe.

The KASAN's report reveals it:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
PGD 800000006aab2067 P4D 800000006aab2067 PUD 6b2ea067 PMD 0
Oops: 0010 [#1] PREEMPT SMP KASAN PTI
CPU: 2 PID: 8724 Comm: syz-executor.0 Not tainted 4.19.177-
gdba4159c14ef-dirty #40
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-
gc9ba5276e321-prebuilt.qemu.org 04/01/2014
RIP: 0010:          (null)
Code: Bad RIP value.
RSP: 0018:ffff88806c287ea0 EFLAGS: 00010246
RAX: fffffbfff1b01774 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 1ffffffff1b01775 RDI: 0000000000000000
RBP: ffff88806c287f00 R08: fffffbfff1b01774 R09: fffffbfff1b01774
R10: 0000000000000001 R11: fffffbfff1b01773 R12: 0000000000000000
R13: ffff88806c29f530 R14: ffffffff8d80bb88 R15: ffffffff8d80bb90
FS:  00007f6b550e6700(0000) GS:ffff88806c280000(0000) knlGS:
0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000005ec98000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 tasklet_action_common.isra.17+0x141/0x420 kernel/softirq.c:522
 tasklet_action+0x50/0x70 kernel/softirq.c:540
 __do_softirq+0x224/0x92c kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x15a/0x180 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:535 [inline]
 do_IRQ+0x123/0x1e0 arch/x86/kernel/irq.c:260
 common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:670
 </IRQ>
RIP: 0010:__do_sys_interrupt kernel/sys.c:2593 [inline]
RIP: 0010:__se_sys_interrupt kernel/sys.c:2584 [inline]
RIP: 0010:__x64_sys_interrupt+0x5b/0x80 kernel/sys.c:2584
Code: ba 00 04 00 00 48 c7 c7 c0 99 31 8c e8 ae 76 5e 01 48 85 c0 75 21 e8
14 ae 24 00 48 c7 c3 c0 99 31 8c b8 0c 00 00 00 0f 01 c1 <31> db e8 fe ad
24 00 48 89 d8 5b 5d c3 48 c7 c3 ea ff ff ff eb ec
RSP: 0018:ffff888054167f10 EFLAGS: 00000212 ORIG_RAX: ffffffffffffffde
RAX: 000000000000000c RBX: ffffffff8c3199c0 RCX: ffffc90001ca6000
RDX: 000000000000001a RSI: ffffffff813478fc RDI: ffffffff8c319dc0
RBP: ffff888054167f18 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000080 R11: fffffbfff18633b7 R12: ffff888054167f58
R13: ffff88805f638000 R14: 0000000000000000 R15: 0000000000000000
 do_syscall_64+0xb0/0x4e0 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4692a9
Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89 f8 48 89 f7
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff
ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6b550e5c48 EFLAGS: 00000246 ORIG_RAX: 000000000000014f
RAX: ffffffffffffffda RBX: 000000000077bf60 RCX: 00000000004692a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000140
RBP: 00000000004cf7eb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000077bf60
R13: 0000000000000000 R14: 000000000077bf60 R15: 00007fff55a1dca0
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
CR2: 0000000000000000
---[ end trace 68e5849c3f77cbb6 ]---
RIP: 0010:          (null)
Code: Bad RIP value.
RSP: 0018:ffff88806c287ea0 EFLAGS: 00010246
RAX: fffffbfff1b01774 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 1ffffffff1b01775 RDI: 0000000000000000
RBP: ffff88806c287f00 R08: fffffbfff1b01774 R09: fffffbfff1b01774
R10: 0000000000000001 R11: fffffbfff1b01773 R12: 0000000000000000
R13: ffff88806c29f530 R14: ffffffff8d80bb88 R15: ffffffff8d80bb90
FS:  00007f6b550e6700(0000) GS:ffff88806c280000(0000) knlGS:
0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000005ec98000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Reported-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: saa7134: Remove unnecessary INIT_LIST_HEAD()
Yang Yingliang [Tue, 11 May 2021 11:55:24 +0000 (13:55 +0200)]
media: saa7134: Remove unnecessary INIT_LIST_HEAD()

The list_head saa7134_devlist is initialized statically.
It is unnecessary to initialize by INIT_LIST_HEAD().

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: v4l2-core: Avoid the dangling pointer in v4l2_fh_release
Lv Yunlong [Sun, 9 May 2021 08:24:02 +0000 (10:24 +0200)]
media: v4l2-core: Avoid the dangling pointer in v4l2_fh_release

A use after free bug caused by the dangling pointer
filp->privitate_data in v4l2_fh_release.
See https://lore.kernel.org/patchwork/patch/1419058/.

My patch sets the dangling pointer to NULL to provide
robust.

Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: exynos4-is: Fix a use after free in isp_video_release
Lv Yunlong [Sun, 9 May 2021 08:12:31 +0000 (10:12 +0200)]
media: exynos4-is: Fix a use after free in isp_video_release

In isp_video_release, file->private_data is freed via
_vb2_fop_release()->v4l2_fh_release(). But the freed
file->private_data is still used in v4l2_fh_is_singular_file()
->v4l2_fh_is_singular(file->private_data), which is a use
after free bug.

My patch uses a variable 'is_singular_file' to avoid the uaf.
v3: https://lore.kernel.org/patchwork/patch/1419058/

Fixes: 34947b8aebe3f ("[media] exynos4-is: Add the FIMC-IS ISP capture DMA driver")
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: ttpci: switch from 'pci_' to 'dma_' API
Christophe JAILLET [Thu, 6 May 2021 21:06:34 +0000 (23:06 +0200)]
media: ttpci: switch from 'pci_' to 'dma_' API

The wrappers in include/linux/pci-dma-compat.h should go away.

The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.
It has been compile tested.

When memory is allocated in 'ace_allocate_descriptors()' and
'ace_init()' GFP_KERNEL can be used because both functions are called from
the probe function and no lock is acquired.

@@
@@
-    PCI_DMA_BIDIRECTIONAL
+    DMA_BIDIRECTIONAL

@@
@@
-    PCI_DMA_TODEVICE
+    DMA_TO_DEVICE

@@
@@
-    PCI_DMA_FROMDEVICE
+    DMA_FROM_DEVICE

@@
@@
-    PCI_DMA_NONE
+    DMA_NONE

@@
expression e1, e2, e3;
@@
-    pci_alloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3;
@@
-    pci_zalloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3, e4;
@@
-    pci_free_consistent(e1, e2, e3, e4)
+    dma_free_coherent(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_single(e1, e2, e3, e4)
+    dma_map_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_single(e1, e2, e3, e4)
+    dma_unmap_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4, e5;
@@
-    pci_map_page(e1, e2, e3, e4, e5)
+    dma_map_page(&e1->dev, e2, e3, e4, e5)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_page(e1, e2, e3, e4)
+    dma_unmap_page(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_sg(e1, e2, e3, e4)
+    dma_map_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_sg(e1, e2, e3, e4)
+    dma_unmap_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+    dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_device(e1, e2, e3, e4)
+    dma_sync_single_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+    dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+    dma_sync_sg_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2;
@@
-    pci_dma_mapping_error(e1, e2)
+    dma_mapping_error(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_dma_mask(e1, e2)
+    dma_set_mask(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_consistent_dma_mask(e1, e2)
+    dma_set_coherent_mask(&e1->dev, e2)

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: adv7842: support EDIDs up to 4 blocks
Hans Verkuil [Thu, 6 May 2021 12:06:57 +0000 (14:06 +0200)]
media: adv7842: support EDIDs up to 4 blocks

The adv7842 driver didn't support EDIDs of 3 or 4 blocks, even though the
hardware supports this.

It is a bit more complicated due to the fact that the adv7842 can expose
two EDIDs: one digital, one analog, for DVI-I connectors. In that case the
VGA_EDID_ENABLE bit is set and blocks 0 and 1 of the EDID eeprom are used
for the DVI-D part and block 2 is used for the DVI-A part of the DVI-I
connector.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: cedrus: Fix .buf_prepare
Andrzej Pietrasiewicz [Wed, 5 May 2021 12:23:47 +0000 (14:23 +0200)]
media: cedrus: Fix .buf_prepare

The driver should only set the payload on .buf_prepare if the
buffer is CAPTURE type. If an OUTPUT buffer has a zero bytesused
set by userspace then v4l2-core will set it to buffer length.

If we overwrite bytesused for OUTPUT buffers, too, then
vb2_get_plane_payload() will return incorrect value which might be then
written to hw registers by the driver in cedrus_h264.c or cedrus_vp8.c.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: hantro: Fix .buf_prepare
Andrzej Pietrasiewicz [Wed, 5 May 2021 12:23:46 +0000 (14:23 +0200)]
media: hantro: Fix .buf_prepare

The driver should only set the payload on .buf_prepare if the
buffer is CAPTURE type. If an OUTPUT buffer has a zero bytesused
set by userspace then v4l2-core will set it to buffer length.

If we overwrite bytesused for OUTPUT buffers, too, then
vb2_get_plane_payload() will return incorrect value which might be then
written to hw registers by the driver in hantro_g1_h264_dec.c.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: rkvdec: Fix .buf_prepare
Ezequiel Garcia [Wed, 5 May 2021 12:23:45 +0000 (14:23 +0200)]
media: rkvdec: Fix .buf_prepare

The driver should only set the payload on .buf_prepare if the
buffer is CAPTURE type. If an OUTPUT buffer has a zero bytesused
set by userspace then v4l2-core will set it to buffer length.

If we overwrite bytesused for OUTPUT buffers, too, then
vb2_get_plane_payload() will return incorrect value which might be then
written to hw registers by the driver in rkvdec-h264.c.

[Changed the comment and used V4L2_TYPE_IS_CAPTURE macro]

Fixes: cd33c830448ba ("media: rkvdec: Add the rkvdec driver")
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: em28xx: Fix possible memory leak of em28xx struct
Igor Matheus Andrade Torrente [Tue, 4 May 2021 18:32:49 +0000 (20:32 +0200)]
media: em28xx: Fix possible memory leak of em28xx struct

The em28xx struct kref isn't being decreased after an error in the
em28xx_ir_init, leading to a possible memory leak.

A kref_put and em28xx_shutdown_buttons is added to the error handler code.

Signed-off-by: Igor Matheus Andrade Torrente <igormtorrente@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: bt878: do not schedule tasklet when it is not setup
Tong Zhang [Wed, 28 Apr 2021 22:12:26 +0000 (00:12 +0200)]
media: bt878: do not schedule tasklet when it is not setup

There is a problem with the tasklet in bt878. bt->tasklet is set by
dvb-bt8xx.ko, and bt878.ko can be loaded independently.
In this case if interrupt comes it may cause null-ptr-dereference.
To solve this issue, we check if the tasklet is actually set before
calling tasklet_schedule.

[    1.750438] bt878(0): irq FDSR FBUS risc_pc=
[    1.750728] BUG: kernel NULL pointer dereference, address: 0000000000000000
[    1.752969] RIP: 0010:0x0
[    1.757526] Call Trace:
[    1.757659]  <IRQ>
[    1.757770]  tasklet_action_common.isra.0+0x107/0x110
[    1.758041]  tasklet_action+0x22/0x30
[    1.758237]  __do_softirq+0xe0/0x29b
[    1.758430]  irq_exit_rcu+0xa4/0xb0
[    1.758618]  common_interrupt+0x8d/0xa0
[    1.758824]  </IRQ>

Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: camss: move to use request_irq by IRQF_NO_AUTOEN flag
Tian Tao [Wed, 7 Apr 2021 06:24:39 +0000 (08:24 +0200)]
media: camss: move to use request_irq by IRQF_NO_AUTOEN flag

disable_irq() after request_irq() still has a time gap in which
interrupts can come. request_irq() with IRQF_NO_AUTOEN flag will
disable IRQ auto-enable because of requesting.

this patch is made base on "add IRQF_NO_AUTOEN for request_irq" which
is being merged: https://lore.kernel.org/patchwork/patch/1388765/

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: dt-bindings: media: renesas,csi2: Add r8a77961 support
Niklas Söderlund [Fri, 12 Mar 2021 13:04:21 +0000 (14:04 +0100)]
media: dt-bindings: media: renesas,csi2: Add r8a77961 support

Add the compatible string for M3-W+ (r8a77961) to the list of supported
SoCs.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: dt-bindings: media: renesas,vin: Add r8a77961 support
Niklas Söderlund [Fri, 12 Mar 2021 13:03:30 +0000 (14:03 +0100)]
media: dt-bindings: media: renesas,vin: Add r8a77961 support

Add the compatible string for M3-W+ (r8a77961) to the list of supported
SoCs.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: dt-bindings: media: Document RDA5807 FM radio bindings
Paul Cercueil [Tue, 2 Mar 2021 14:42:35 +0000 (15:42 +0100)]
media: dt-bindings: media: Document RDA5807 FM radio bindings

Add documentation for the devicetree bindings of the RDA5807 FM radio
I2C chip from Unisoc.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: venus: helpers: Delete an unneeded bool conversion
Zhen Lei [Mon, 10 May 2021 11:57:52 +0000 (13:57 +0200)]
media: venus: helpers: Delete an unneeded bool conversion

The result of an expression consisting of a single relational operator is
already of the bool type and does not need to be evaluated explicitly.

No functional change.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: venus: Enable low power setting for encoder
Dikshita Agarwal [Mon, 12 Apr 2021 06:58:43 +0000 (08:58 +0200)]
media: venus: Enable low power setting for encoder

Set the FW to run in low power for encoder
to accommodate more session without losing much on quality.

Signed-off-by: Dikshita Agarwal <dikshita@codeaurora.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: venus: hfi_cmds.h: Replace one-element array with flexible-array member
Gustavo A. R. Silva [Wed, 10 Feb 2021 22:57:20 +0000 (23:57 +0100)]
media: venus: hfi_cmds.h: Replace one-element array with flexible-array member

There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use “flexible array members”[1] for these cases. The older
style of one-element or zero-length arrays should no longer be used[2].

Use flexible-array member in struct hfi_sys_set_property_pkt instead of
one-element array.

Also, this helps with the ongoing efforts to enable -Warray-bounds and
fix the following warnings:

drivers/media/platform/qcom/venus/hfi_cmds.c: In function ‘pkt_sys_coverage_config’:
drivers/media/platform/qcom/venus/hfi_cmds.c:57:11: warning: array subscript 1 is above array bounds of ‘u32[1]’ {aka ‘unsigned int[1]’} [-Warray-bounds]
   57 |  pkt->data[1] = mode;
      |  ~~~~~~~~~^~~

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.9/process/deprecated.html#zero-length-and-one-element-arrays

Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/109
Build-tested-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/lkml/602416da.iZqae7Dbk7nyl6OY%25lkp@intel.com/
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
3 years agomedia: venus: Convert to use resource-managed OPP API
Yangtao Li [Sun, 14 Mar 2021 16:34:07 +0000 (17:34 +0100)]
media: venus: Convert to use resource-managed OPP API

Use resource-managed OPP API to simplify code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>