linux-kernel - [PATCH v3 08/13] spi: atmel-quadspi: drop unused and NOP transfer macros

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Date:   Sat, 2 Feb 2019 04:07:33 +0000
From:   <Tudor.Ambarus@...rochip.com>
To:     <broonie@...nel.org>, <robh+dt@...nel.org>, <mark.rutland@....com>,
        <Nicolas.Ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
        <Ludovic.Desroches@...rochip.com>, <bbrezillon@...nel.org>,
        <Cyrille.Pitchen@...rochip.com>, <bugalski.piotr@...il.com>
CC:     <linux-spi@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-mtd@...ts.infradead.org>,
        <Tudor.Ambarus@...rochip.com>
Subject: [PATCH v3 08/13] spi: atmel-quadspi: drop unused and NOP transfer
 macros

From: Tudor Ambarus <tudor.ambarus@...rochip.com>

Remove NOP when setting read transfer type. Remove useless
setting of write transfer type when
op->data.dir == SPI_MEM_DATA_IN && !op->data.nbytes.

QSPI_IFR_TFRTYP_TRSFR_WRITE is specific just to sama5d2 qspi,
rename it to QSPI_IFR_SAMA5D2_WRITE_TRSFR.

Signed-off-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
---
v3: new patch

 drivers/spi/atmel-quadspi.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/spi/atmel-quadspi.c b/drivers/spi/atmel-quadspi.c
index d26d4cd0e36b..bfa5f5e92d96 100644
--- a/drivers/spi/atmel-quadspi.c
+++ b/drivers/spi/atmel-quadspi.c
@@ -113,11 +113,7 @@
 #define QSPI_IFR_OPTL_4BIT              (2 << 8)
 #define QSPI_IFR_OPTL_8BIT              (3 << 8)
 #define QSPI_IFR_ADDRL                  BIT(10)
-#define QSPI_IFR_TFRTYP_MASK            GENMASK(13, 12)
-#define QSPI_IFR_TFRTYP_TRSFR_READ      (0 << 12)
-#define QSPI_IFR_TFRTYP_TRSFR_READ_MEM  (1 << 12)
-#define QSPI_IFR_TFRTYP_TRSFR_WRITE     (2 << 12)
-#define QSPI_IFR_TFRTYP_TRSFR_WRITE_MEM (3 << 13)
+#define QSPI_IFR_SAMA5D2_WRITE_TRSFR	BIT(13)
 #define QSPI_IFR_CRM                    BIT(14)
 #define QSPI_IFR_NBDUM_MASK             GENMASK(20, 16)
 #define QSPI_IFR_NBDUM(n)               (((n) << 16) & QSPI_IFR_NBDUM_MASK)
@@ -273,10 +269,8 @@ static int atmel_qspi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op)
 	if (op->data.nbytes)
 		ifr |= QSPI_IFR_DATAEN;
 
-	if (op->data.dir == SPI_MEM_DATA_IN && op->data.nbytes)
-		ifr |= QSPI_IFR_TFRTYP_TRSFR_READ;
-	else
-		ifr |= QSPI_IFR_TFRTYP_TRSFR_WRITE;
+	if (op->data.dir == SPI_MEM_DATA_OUT)
+		ifr |= QSPI_IFR_SAMA5D2_WRITE_TRSFR;
 
 	/* Clear pending interrupts */
 	(void)readl_relaxed(base + QSPI_SR);
-- 
2.9.5