diff options
| -rw-r--r-- | drivers/spi/spi-fsl-dspi.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index df4944353ed5..d5983be32180 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -656,10 +656,8 @@ static void dspi_pushr_write(struct fsl_dspi *dspi) regmap_write(dspi->regmap, SPI_PUSHR, dspi_pop_tx_pushr(dspi)); } -static void dspi_pushr_cmd_write(struct fsl_dspi *dspi) +static void dspi_pushr_cmd_write(struct fsl_dspi *dspi, u16 cmd) { - u16 cmd = dspi->tx_cmd; - /* * The only time when the PCS doesn't need continuation after this word * is when it's last. We need to look ahead, because we actually call @@ -680,8 +678,13 @@ static void dspi_pushr_txdata_write(struct fsl_dspi *dspi, u16 txdata) regmap_write(dspi->regmap_pushr, PUSHR_TX, txdata); } -static void dspi_xspi_write(struct fsl_dspi *dspi, int cnt) +static void dspi_xspi_write(struct fsl_dspi *dspi, int cnt, bool eoq) { + u16 tx_cmd = dspi->tx_cmd; + + if (eoq) + tx_cmd |= SPI_PUSHR_CMD_EOQ; + /* Update CTARE */ regmap_write(dspi->regmap, SPI_CTARE(0), SPI_FRAME_EBITS(dspi->oper_bits_per_word) | @@ -691,7 +694,7 @@ static void dspi_xspi_write(struct fsl_dspi *dspi, int cnt) * Write the CMD FIFO entry first, and then the two * corresponding TX FIFO entries (or one...). */ - dspi_pushr_cmd_write(dspi); + dspi_pushr_cmd_write(dspi, tx_cmd); /* Fill TX FIFO with as many transfers as possible */ while (cnt--) { @@ -707,6 +710,7 @@ static void dspi_xspi_fifo_write(struct fsl_dspi *dspi) { int num_fifo_entries = dspi->devtype_data->fifo_size; int bytes_in_flight; + bool eoq = false; /* In XSPI mode each 32-bit word occupies 2 TX FIFO entries */ if (dspi->oper_word_size == 4) @@ -732,11 +736,11 @@ static void dspi_xspi_fifo_write(struct fsl_dspi *dspi) * So send one word less during this go, to force a split and a command * with a single word next time, when CONT will be unset. */ - if (bytes_in_flight == dspi->len && dspi->words_in_flight > 1 && - !(dspi->tx_cmd & SPI_PUSHR_CMD_CONT)) - dspi->words_in_flight--; + if (!(dspi->tx_cmd & SPI_PUSHR_CMD_CONT) && + bytes_in_flight == dspi->len) + eoq = true; - dspi_xspi_write(dspi, dspi->words_in_flight); + dspi_xspi_write(dspi, dspi->words_in_flight, eoq); } static void dspi_eoq_fifo_write(struct fsl_dspi *dspi) |