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Groups > linux.kernel > #1613938
| From | Vignesh R <vigneshr@ti.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 0/2] spi-ti-qspi: Handle vmalloc'd buffers |
| Date | 2017-03-31 14:00 +0200 |
| Message-ID | <tr3nI-497-5@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
First patch, adds can_dma() like interface for spi_flash_read() interface, this will enable controller drivers to selectively use DMA based on buffer type, alignment, size or other limitations. Second patch implements bounce buffer support for ti-qspi driver to handle buffers that are not DMA'able, like vmalloc'd buffers that belong to LPAE region. This is required to work with UBIFS Vignesh R (2): spi: Add can_dma like interface for spi_flash_read spi: spi-ti-qspi: Use bounce buffer if read buffer is not DMA'ble drivers/spi/spi-ti-qspi.c | 64 +++++++++++++++++++++++++++++++++++++++++------ drivers/spi/spi.c | 2 +- include/linux/spi/spi.h | 4 +++ 3 files changed, 62 insertions(+), 8 deletions(-) -- 2.11.0
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[PATCH 0/2] spi-ti-qspi: Handle vmalloc'd buffers Vignesh R <vigneshr@ti.com> - 2017-03-31 14:00 +0200
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