linux/drivers/media/v4l2-core/v4l2-common.c, branch v5.8-rc3

mm: don't include asm/pgtable.h if linux/mm.h is already included

2020-06-09T16:39:13Z

Patch series "mm: consolidate definitions of page table accessors", v2. The low level page table accessors (pXY_index(), pXY_offset()) are duplicated across all architectures and sometimes more than once. For instance, we have 31 definition of pgd_offset() for 25 supported architectures. Most of these definitions are actually identical and typically it boils down to, e.g. static inline unsigned long pmd_index(unsigned long address) { return (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1); } static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) { return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(address); } These definitions can be shared among 90% of the arches provided XYZ_SHIFT, PTRS_PER_XYZ and xyz_page_vaddr() are defined. For architectures that really need a custom version there is always possibility to override the generic version with the usual ifdefs magic. These patches introduce include/linux/pgtable.h that replaces include/asm-generic/pgtable.h and add the definitions of the page table accessors to the new header. This patch (of 12): The linux/mm.h header includes to allow inlining of the functions involving page table manipulations, e.g. pte_alloc() and pmd_alloc(). So, there is no point to explicitly include in the files that include . The include statements in such cases are remove with a simple loop: for f in $(git grep -l "include ") ; do sed -i -e '/include / d' $f done Signed-off-by: Mike Rapoport Signed-off-by: Andrew Morton Cc: Arnd Bergmann Cc: Borislav Petkov Cc: Brian Cain Cc: Catalin Marinas Cc: Chris Zankel Cc: "David S. Miller" Cc: Geert Uytterhoeven Cc: Greentime Hu Cc: Greg Ungerer Cc: Guan Xuetao Cc: Guo Ren Cc: Heiko Carstens Cc: Helge Deller Cc: Ingo Molnar Cc: Ley Foon Tan Cc: Mark Salter Cc: Matthew Wilcox Cc: Matt Turner Cc: Max Filippov Cc: Michael Ellerman Cc: Michal Simek Cc: Mike Rapoport Cc: Nick Hu Cc: Paul Walmsley Cc: Richard Weinberger Cc: Rich Felker Cc: Russell King Cc: Stafford Horne Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Cc: Tony Luck Cc: Vincent Chen Cc: Vineet Gupta Cc: Will Deacon Cc: Yoshinori Sato Link: http://lkml.kernel.org/r/20200514170327.31389-1-rppt@kernel.org Link: http://lkml.kernel.org/r/20200514170327.31389-2-rppt@kernel.org Signed-off-by: Linus Torvalds

media: v4l2-common: Add BGR666 to v4l2_format_info

2020-04-14T09:45:37Z

Add V4L2_PIX_FMT_BGR666 to the format table. Signed-off-by: Dafna Hirschfeld Reviewed-by: Laurent Pinchart Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: v4l2-common: change the pixel_enc of V4L2_PIX_FMT_GREY to YUV

2020-04-14T09:33:01Z

V4L2_PIX_FMT_GREY format is Ycbcr format without the color data, therefore its pixel_enc should set to V4L2_PIXEL_ENC_YUV. Signed-off-by: Dafna Hirschfeld Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: v4l2-common: add RGB565 and RGB55 to v4l2_format_info

2019-10-10T16:53:41Z

Add RGB565 and RGB555 to the v4l2_format_info table. Signed-off-by: Benoit Parrot Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: v4l2-common: add pixel encoding support

2019-10-10T16:53:23Z

It is often useful to figure out if a pixel_format is either YUV or RGB especially for driver who can perform the pixel encoding conversion. Instead of having each driver implement its own "is_this_yuv/rgb" function based on a restricted set of pixel value, it is better to do this in centralized manner. We therefore add a pixel_enc member to the v4l2_format_info structure to quickly identify the related pixel encoding. And add helper functions to check pixel encoding. Signed-off-by: Benoit Parrot Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: v4l2-core: move i2c helpers out of v4l2-common.c

2019-08-26T13:50:48Z

Separate the i2c helpers to v4l2-i2c.c, in order to get rid of the ifdefery. No functional changes intended, this is just a cosmetic change to organize the code better. Given I2C is a tristate symbol, a hidden boolean symbol is introduced, to make the conditional build easier. Signed-off-by: Ezequiel Garcia Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: v4l2-core: move spi helpers out of v4l2-common.c

2019-08-26T13:49:12Z

Separate the spi helpers to v4l2-spi.c, in order to get rid of the ifdefery. No functional changes intended, this is just a cosmetic change to organize the code better. Signed-off-by: Ezequiel Garcia Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: v4l2-core: Module re-organization

2019-08-26T13:48:15Z

videodev.ko and v4l2-common.ko driver are built under the same conditions. Therefore, it doesn't make much sense to split them in two different modules. Splitting v4l2-common to its own driver was done many years ago: commit a9254475bbfbed5f0596d952c6a3c9806e19dd0b Author: Mauro Carvalho Chehab Date: Tue Jan 29 18:32:35 2008 -0300 V4L/DVB (7115): Fix bug #9833: regression when compiling V4L without I2C Back then, the subsystem organization was different and the module split was needed. However, with the current organization, there is no issue compiling V4L2 with I2C as y/m/n. This commit makes v4l2-common part of our V4L2 core driver (videodev.ko). Signed-off-by: Ezequiel Garcia Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: v4l2-common: add support for new RGB32 pixelformats

2019-07-30T16:17:08Z

Four new variants of RGB32 were added. Add support for them to the v4l2_format_info() function. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: v4l2-common: Add an helper to apply frmsize constraints

2019-05-29T14:48:34Z

The rockchip VPU driver is open-coding this logic which seems pretty generic. Let's provide an helper to apply the min/max and alignment constraints on width/height. Signed-off-by: Boris Brezillon Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab