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Groups > linux.kernel > #1613938

[PATCH 0/2] spi-ti-qspi: Handle vmalloc'd buffers

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

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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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