On Wed, 18 Mar 2020 at 21:03, Michael Walle <michael@xxxxxxxx> wrote: > > Am 2020-03-18 01:15, schrieb Vladimir Oltean: > > From: Vladimir Oltean <vladimir.oltean@xxxxxxx> > > > > This series addresses a few issues that were missed during the previous > > series "[PATCH 00/12] TCFQ to XSPI migration for NXP DSPI driver", on > > SoCs other than LS1021A and LS1043A. DMA mode has been completely > > broken > > by that series, and XSPI mode never worked on little-endian > > controllers. > > > > Then it introduces support for the LS1028A chip, whose compatible has > > recently been documented here: > > > > https://lore.kernel.org/linux-devicetree/20200218171418.18297-1-michael@xxxxxxxx/ > > > > The device tree for the LS1028A SoC is extended with DMA channels > > definition, such that even though the default operating mode is XSPI, > > one can simply change DSPI_XSPI_MODE to DSPI_DMA_MODE in the > > devtype_data structure of the driver and use that instead. > > > > Compared to earlier v4, the only change is in patch 05/12 to fix a race > > condition signaled by Michael Walle here: > > https://lkml.org/lkml/2020/3/17/740 > > > > I don't expect the "fixes" patches to reach very far down the stable > > pipe, since there has been pretty heavy refactoring in this driver. > > > > For testing, benchmarking and debugging, the mikroBUS connector on the > > LS1028A-RDB is made available via spidev. > > Patches 1-11: > Tested-by: Michael Walle <michael@xxxxxxxx> > > Thanks Vladimir for the great work. > Excellent! Thanks Michael for the patience! > -michael > > > > > Vladimir Oltean (12): > > spi: spi-fsl-dspi: Don't access reserved fields in SPI_MCR > > spi: spi-fsl-dspi: Fix little endian access to PUSHR CMD and TXDATA > > spi: spi-fsl-dspi: Fix bits-per-word acceleration in DMA mode > > spi: spi-fsl-dspi: Avoid reading more data than written in EOQ mode > > spi: spi-fsl-dspi: Protect against races on dspi->words_in_flight > > spi: spi-fsl-dspi: Replace interruptible wait queue with a simple > > completion > > spi: spi-fsl-dspi: Avoid NULL pointer in dspi_slave_abort for non-DMA > > mode > > spi: spi-fsl-dspi: Fix interrupt-less DMA mode taking an XSPI code > > path > > spi: spi-fsl-dspi: Move invariant configs out of > > dspi_transfer_one_message > > spi: spi-fsl-dspi: Add support for LS1028A > > arm64: dts: ls1028a: Specify the DMA channels for the DSPI > > controllers > > arm64: dts: ls1028a-rdb: Add a spidev node for the mikroBUS > > > > .../boot/dts/freescale/fsl-ls1028a-rdb.dts | 14 + > > .../arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 6 + > > drivers/spi/spi-fsl-dspi.c | 324 +++++++++--------- > > 3 files changed, 182 insertions(+), 162 deletions(-) -Vladimir
