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[6/5] spi: spi-geni-qcom: Simplify setup_fifo_xfer()

Message ID 20200618233959.160032-1-swboyd@chromium.org
State Superseded
Headers show
Series [v4,1/5] spi: spi-geni-qcom: No need for irqsave variant of spinlock calls | expand

Commit Message

Stephen Boyd June 18, 2020, 11:39 p.m. UTC 
The definition of SPI_FULL_DUPLEX (3) is really SPI_TX_ONLY (1) ORed
with SPI_RX_ONLY (2). Let's drop the define and simplify the code here a
bit by collapsing the setting of 'm_cmd' into conditions that are the
same.

This is a non-functional change, just cleanup to consolidate code.

Cc: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
---
 drivers/spi/spi-geni-qcom.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c
index 636c3da15db0..670f83793aa4 100644
--- a/drivers/spi/spi-geni-qcom.c
+++ b/drivers/spi/spi-geni-qcom.c
@@ -51,7 +51,6 @@ 
 /* M_CMD OP codes for SPI */
 #define SPI_TX_ONLY		1
 #define SPI_RX_ONLY		2
-#define SPI_FULL_DUPLEX		3
 #define SPI_TX_RX		7
 #define SPI_CS_ASSERT		8
 #define SPI_CS_DEASSERT		9
@@ -357,12 +356,6 @@  static void setup_fifo_xfer(struct spi_transfer *xfer,
 
 	mas->tx_rem_bytes = 0;
 	mas->rx_rem_bytes = 0;
-	if (xfer->tx_buf && xfer->rx_buf)
-		m_cmd = SPI_FULL_DUPLEX;
-	else if (xfer->tx_buf)
-		m_cmd = SPI_TX_ONLY;
-	else if (xfer->rx_buf)
-		m_cmd = SPI_RX_ONLY;
 
 	spi_tx_cfg &= ~CS_TOGGLE;
 
@@ -373,12 +366,14 @@  static void setup_fifo_xfer(struct spi_transfer *xfer,
 	len &= TRANS_LEN_MSK;
 
 	mas->cur_xfer = xfer;
-	if (m_cmd & SPI_TX_ONLY) {
+	if (xfer->tx_buf) {
+		m_cmd |= SPI_TX_ONLY;
 		mas->tx_rem_bytes = xfer->len;
 		writel(len, se->base + SE_SPI_TX_TRANS_LEN);
 	}
 
-	if (m_cmd & SPI_RX_ONLY) {
+	if (xfer->rx_buf) {
+		m_cmd |= SPI_RX_ONLY;
 		writel(len, se->base + SE_SPI_RX_TRANS_LEN);
 		mas->rx_rem_bytes = xfer->len;
 	}