[U-Boot] [PATCH v4 03/20] spi: spi-mem: Allow use of spi_mem_exec_op for all SPI modes

[Vignesh R]

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 at ti.com>
Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
Tested-by: Stefan Roese <sr at denx.de>
Tested-by: Horatiu Vultur <horatiu.vultur at microchip.com>
Reviewed-by: Jagan Teki <jagan at openedev.com>
Tested-by: Jagan Teki <jagan at amarulasolutions.com> #zynq-microzed
---
 drivers/spi/spi-mem.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c
index af9aef009a73..1da20b8de5c4 100644
--- a/drivers/spi/spi-mem.c
+++ b/drivers/spi/spi-mem.c
@@ -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;
-- 
2.20.1