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spi: spi-mem: Allow use of spi_mem_exec_op for all SPI modes

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SPI controllers support all types of SPI modes including dual/quad bus
widths. Therefore remove constraint wrt SPI mode from spi-mem layer.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Tested-by: Stefan Roese <sr@denx.de>
Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
This commit is contained in:
Vignesh R 2019-02-05 11:29:12 +05:30 committed by Jagan Teki
parent e519c61606
commit 6d373e523f
1 changed files with 0 additions and 9 deletions
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9
drivers/spi/spi-mem.c
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@ -323,15 +323,6 @@ int spi_mem_exec_op(struct spi_slave *slave, const struct spi_mem_op *op)
return -EIO;
#else
/* U-Boot does not support parallel SPI data lanes */
if ((op->cmd.buswidth != 1) ||
(op->addr.nbytes && op->addr.buswidth != 1) ||
(op->dummy.nbytes && op->dummy.buswidth != 1) ||
(op->data.nbytes && op->data.buswidth != 1)) {
printf("Dual/Quad raw SPI transfers not supported\n");
return -ENOTSUPP;
}
if (op->data.nbytes) {
if (op->data.dir == SPI_MEM_DATA_IN)
rx_buf = op->data.buf.in;