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Groups > linux.kernel > #1386187
| From | Vignesh R <vigneshr@ti.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 0/3] spi: Add DMA support for ti-qspi |
| Date | 2016-04-25 12:00 +0200 |
| Message-ID | <rrLt7-3Bp-3@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
This series adds support for DMA during QSPI flash read via memory mapped mode. The first patch adds a check to spi_map_buf() API to return error when kmap'd buffers are passed for DMA mapping. Second patch adds support for using DMA on top of spi_flash_read() API using DMA sg_table mapping support in SPI core. Third map adds DMA support for TI QSPI in memory mapped read mode. Tested on DRA74 EVM and DRA72 EVM on linux-next. v1: https://lkml.org/lkml/2016/4/4/855 Vignesh R (3): spi: return error if kmap'd buffers passed to spi_map_buf() spi: Add DMA support for spi_flash_read() spi: spi-ti-qspi: Add DMA support for QSPI mmap read drivers/spi/spi-ti-qspi.c | 196 +++++++++++++++++++++++++++++++++++++++++++--- drivers/spi/spi.c | 18 ++++- include/linux/spi/spi.h | 4 + 3 files changed, 204 insertions(+), 14 deletions(-) -- 2.8.1
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[PATCH v2 0/3] spi: Add DMA support for ti-qspi Vignesh R <vigneshr@ti.com> - 2016-04-25 12:00 +0200 [PATCH v2 2/3] spi: Add DMA support for spi_flash_read() Vignesh R <vigneshr@ti.com> - 2016-04-25 12:00 +0200 [PATCH v2 3/3] spi: spi-ti-qspi: Add DMA support for QSPI mmap read Vignesh R <vigneshr@ti.com> - 2016-04-25 12:00 +0200
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