diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index e9a91adf03eb..c45d76c848c8 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -1082,7 +1082,7 @@ static int bcm2835_spi_transfer_one(struct spi_controller *ctlr,
 				    struct spi_transfer *tfr)
 {
 	struct bcm2835_spi *bs = spi_controller_get_devdata(ctlr);
-	unsigned long spi_hz, clk_hz, cdiv, spi_used_hz;
+	unsigned long spi_hz, clk_hz, cdiv;
 	unsigned long hz_per_byte, byte_limit;
 	u32 cs = bs->prepare_cs[spi->chip_select];
 
@@ -1102,7 +1102,7 @@ static int bcm2835_spi_transfer_one(struct spi_controller *ctlr,
 	} else {
 		cdiv = 0; /* 0 is the slowest we can go */
 	}
-	spi_used_hz = cdiv ? (clk_hz / cdiv) : (clk_hz / 65536);
+	tfr->effective_speed_hz = cdiv ? (clk_hz / cdiv) : (clk_hz / 65536);
 	bcm2835_wr(bs, BCM2835_SPI_CLK, cdiv);
 
 	/* handle all the 3-wire mode */
@@ -1122,7 +1122,7 @@ static int bcm2835_spi_transfer_one(struct spi_controller *ctlr,
 	 * per 300,000 Hz of bus clock.
 	 */
 	hz_per_byte = polling_limit_us ? (9 * 1000000) / polling_limit_us : 0;
-	byte_limit = hz_per_byte ? spi_used_hz / hz_per_byte : 1;
+	byte_limit = hz_per_byte ? tfr->effective_speed_hz / hz_per_byte : 1;
 
 	/* run in polling mode for short transfers */
 	if (tfr->len < byte_limit)
diff --git a/drivers/spi/spi-bcm2835aux.c b/drivers/spi/spi-bcm2835aux.c
index c331efd6e86b..2f717812c766 100644
--- a/drivers/spi/spi-bcm2835aux.c
+++ b/drivers/spi/spi-bcm2835aux.c
@@ -345,7 +345,7 @@ static int bcm2835aux_spi_transfer_one(struct spi_master *master,
 				       struct spi_transfer *tfr)
 {
 	struct bcm2835aux_spi *bs = spi_master_get_devdata(master);
-	unsigned long spi_hz, clk_hz, speed, spi_used_hz;
+	unsigned long spi_hz, clk_hz, speed;
 	unsigned long hz_per_byte, byte_limit;
 
 	/* calculate the registers to handle
@@ -374,7 +374,7 @@ static int bcm2835aux_spi_transfer_one(struct spi_master *master,
 	/* set the new speed */
 	bs->cntl[0] |= speed << BCM2835_AUX_SPI_CNTL0_SPEED_SHIFT;
 
-	spi_used_hz = clk_hz / (2 * (speed + 1));
+	tfr->effective_speed_hz = clk_hz / (2 * (speed + 1));
 
 	/* set transmit buffers and length */
 	bs->tx_buf = tfr->tx_buf;
@@ -391,7 +391,7 @@ static int bcm2835aux_spi_transfer_one(struct spi_master *master,
 	 * 30 µs per 300,000 Hz of bus clock.
 	 */
 	hz_per_byte = polling_limit_us ? (9 * 1000000) / polling_limit_us : 0;
-	byte_limit = hz_per_byte ? spi_used_hz / hz_per_byte : 1;
+	byte_limit = hz_per_byte ? tfr->effective_speed_hz / hz_per_byte : 1;
 
 	/* run in polling mode for short transfers */
 	if (tfr->len < byte_limit)