Yuji Sasaki 292d4e120e qualcomm/ipq40xx: add vector operation method to SPI ... Adding spi_xfer_two_vectors as .xfer_vector for ipq40xx spi_ctrlr. Commit c2973d196d ("UPSTREAM: spi: Get rid of SPI_ATOMIC_SEQUENCING") has added a new driver method xfer_vector to support combined write-read operation within a single CS cycle. The method is wrapped in the spi_xfer_vector() API. When spi_ctrlr structure does not have xfer_vector method, API calls write and read operations sequentially. However the QCA40xx SPI driver has "forced" CS activation-inactivation in xfer method, so individual operation will break CS after write operation, making combined write-read cycle broken. Adding xfer_vector method to spi_ctrlr is a simple fix to prevent this. BUG=None BRANCH=none TEST=built and run on Gale Change-Id: I2258e563d0793bcacd626f78b8e96b3649a8e4a4 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 88a8824951cef4fe293dfa6e3a1a837ae07b6156 Original-Change-Id: I031e85ce5b847353cb1084f6f68b2af8c6f702e1 Original-Signed-off-by: Yuji Sasaki <sasakiy@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/433439 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-by: Kan Yan <kyan@google.com> Reviewed-on: https://review.coreboot.org/18297 Tested-by: build bot (Jenkins) Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Martin Roth <martinroth@google.com>		2017-02-22 17:03:09 +01:00
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ipq40xx	qualcomm/ipq40xx: add vector operation method to SPI	2017-02-22 17:03:09 +01:00
ipq806x	spi: Get rid of SPI_ATOMIC_SEQUENCING	2016-12-23 04:54:55 +01:00