user/sven/linux.git/Documentation/DMA-API-HOWTO.txt, branch v5.2.2

Merge tag 'dma-mapping-5.2' of git://git.infradead.org/users/hch/dma-mapping

2019-05-09T15:40:55Z

Pull DMA mapping updates from Christoph Hellwig: - remove the already broken support for NULL dev arguments to the DMA API calls - Kconfig tidyups * tag 'dma-mapping-5.2' of git://git.infradead.org/users/hch/dma-mapping: dma-mapping: add a Kconfig symbol to indicate arch_dma_prep_coherent presence dma-mapping: remove an unnecessary NULL check x86/dma: Remove the x86_dma_fallback_dev hack dma-mapping: remove leftover NULL device support arm: use a dummy struct device for ISA DMA use of the DMA API pxa3xx-gcu: pass struct device to dma_mmap_coherent gbefb: switch to managed version of the DMA allocator da8xx-fb: pass struct device to DMA API functions parport_ip32: pass struct device to DMA API functions dma: select GENERIC_ALLOCATOR for DMA_REMAP

docs: DMA-API-HOWTO: add a missing "="

2019-04-11T18:37:02Z

The === line is shorter than the section title. As this will generate a warning with rst build, fix it. Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Jonathan Corbet

dma-mapping: remove leftover NULL device support

2019-04-08T15:52:46Z

Most dma_map_ops implementations already had some issues with a NULL device, or did simply crash if one was fed to them. Now that we have cleaned up all the obvious offenders we can stop to pretend we support this mode. Signed-off-by: Christoph Hellwig

Documentation/DMA-API-HOWTO: update dma_mask sections

2019-02-20T14:29:47Z

We don't require drivers to guess a DMA mask that might actually match the system capabilities any more, so fix up the documentation to clear this up. Signed-off-by: Christoph Hellwig

DMA-API-HOWTO.txt: standardize document format

2017-07-14T19:51:32Z

Each text file under Documentation follows a different format. Some doesn't even have titles! Change its representation to follow the adopted standard, using ReST markups for it to be parseable by Sphinx: - Mark titles; - Mark literal blocks; - Mark some literals that would otherwise produce warnings; - Mark authorship. Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Jonathan Corbet

dma-mapping: remove DMA_ERROR_CODE

2017-06-28T13:54:37Z

And update the documentation - dma_mapping_error has been supported everywhere for a long time. Signed-off-by: Christoph Hellwig

Documentation: DMA-API-HOWTO: Fix a typo

2016-09-20T23:58:46Z

Fix a type in example variable name. Signed-off-by: Andrey Smirnov Signed-off-by: Jonathan Corbet

DMA-API-HOWTO: is no more

2016-09-16T16:00:25Z

So don't mention it. Signed-off-by: Christoph Hellwig Signed-off-by: Jonathan Corbet

dma-mapping: always provide the dma_map_ops based implementation

2016-01-21T01:09:18Z

Move the generic implementation to now that all architectures support it and remove the HAVE_DMA_ATTR Kconfig symbol now that everyone supports them. [valentinrothberg@gmail.com: remove leftovers in Kconfig] Signed-off-by: Christoph Hellwig Cc: "David S. Miller" Cc: Aurelien Jacquiot Cc: Chris Metcalf Cc: David Howells Cc: Geert Uytterhoeven Cc: Haavard Skinnemoen Cc: Hans-Christian Egtvedt Cc: Helge Deller Cc: James Hogan Cc: Jesper Nilsson Cc: Koichi Yasutake Cc: Ley Foon Tan Cc: Mark Salter Cc: Mikael Starvik Cc: Steven Miao Cc: Vineet Gupta Cc: Christian Borntraeger Cc: Joerg Roedel Cc: Sebastian Ott Signed-off-by: Valentin Rothberg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Documentation: DMA API: Be more explicit that nents is always the same

2015-09-24T21:50:06Z

The nents argument to the DMA API functions operating on scatterlists is always the same. The documentation used different argument names and the matter was not mentioned in Documentation/DMA-API-HOWTO.txt at all. Fix these. Signed-off-by: Sakari Ailus Signed-off-by: Jonathan Corbet