diff options
| author |   Ionela Voinescu <ionela.voinescu@imgtec.com> | 2018-07-22 23:20:06 +0200 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2018-07-30 16:31:54 +0100 |
| commit | baec8eb323cd59d1bfe148a287610819d5897838 (patch) | |
| tree | 536c857a570d553b99b844230a5406082cd97ff7 | |
| parent | spi: omap2-mcspi: remove several redundant variables (diff) | |
| download | linux-dev-baec8eb323cd59d1bfe148a287610819d5897838.tar.xz linux-dev-baec8eb323cd59d1bfe148a287610819d5897838.zip | |
spi: img-spfi: Set device select bits for SPFI port state
Even if the chip select line is not controlled by the SPFI
hardware, the device select bits need to be set to specify
the chip select line in use for the hardware to know what
parameters to use for the current transfer.
Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/spi/spi-img-spfi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c index 7a37090dabbe..e6eb979f1b8a 100644 --- a/drivers/spi/spi-img-spfi.c +++ b/drivers/spi/spi-img-spfi.c @@ -419,6 +419,9 @@ static int img_spfi_prepare(struct spi_master *master, struct spi_message *msg) u32 val; val = spfi_readl(spfi, SPFI_PORT_STATE); + val &= ~(SPFI_PORT_STATE_DEV_SEL_MASK << + SPFI_PORT_STATE_DEV_SEL_SHIFT); + val |= msg->spi->chip_select << SPFI_PORT_STATE_DEV_SEL_SHIFT; if (msg->spi->mode & SPI_CPHA) val |= SPFI_PORT_STATE_CK_PHASE(msg->spi->chip_select); else |