spi: Use mode for rx mode flags

Make rx mode flags as generic to spi, earlier mode_rx is
maintained separately because of some flash specific code.

Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Cc: Vignesh R <vigneshr@ti.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>

drivers/mtd/spi/spi_flash.c

@@ -1172,11 +1172,11 @@ int spi_flash_scan(struct spi_flash *flash)
 
 	/* Look for read commands */
 	flash->read_cmd = CMD_READ_ARRAY_FAST;
-	if (spi->mode_rx & SPI_RX_SLOW)
+	if (spi->mode & SPI_RX_SLOW)
 		flash->read_cmd = CMD_READ_ARRAY_SLOW;
-	else if (spi->mode_rx & SPI_RX_QUAD && params->flags & RD_QUAD)
+	else if (spi->mode & SPI_RX_QUAD && params->flags & RD_QUAD)
 		flash->read_cmd = CMD_READ_QUAD_OUTPUT_FAST;
-	else if (spi->mode_rx & SPI_RX_DUAL && params->flags & RD_DUAL)
+	else if (spi->mode & SPI_RX_DUAL && params->flags & RD_DUAL)
 		flash->read_cmd = CMD_READ_DUAL_OUTPUT_FAST;
 
 	/* Look for write commands */

drivers/spi/cadence_qspi.c

@@ -251,7 +251,7 @@ static int cadence_spi_xfer(struct udevice *dev, unsigned int bitlen,
 		break;
 		case CQSPI_INDIRECT_READ:
 			err = cadence_qspi_apb_indirect_read_setup(plat,
-				priv->cmd_len, dm_plat->mode_rx, cmd_buf);
+				priv->cmd_len, dm_plat->mode, cmd_buf);
 			if (!err) {
 				err = cadence_qspi_apb_indirect_read_execute
 				(plat, data_bytes, din);

drivers/spi/ich.c

@@ -649,10 +649,8 @@ static int ich_spi_child_pre_probe(struct udevice *dev)
 	 * ICH 7 SPI controller only supports array read command
 	 * and byte program command for SST flash
 	 */
-	if (plat->ich_version == ICHV_7) {
-		slave->mode_rx = SPI_RX_SLOW;
-		slave->mode = SPI_TX_BYTE;
-	}
+	if (plat->ich_version == ICHV_7)
+		slave->mode = SPI_RX_SLOW | SPI_TX_BYTE;
 
 	return 0;
 }

drivers/spi/spi-uclass.c

@@ -164,7 +164,6 @@ static int spi_child_pre_probe(struct udevice *dev)
 
 	slave->max_hz = plat->max_hz;
 	slave->mode = plat->mode;
-	slave->mode_rx = plat->mode_rx;
 	slave->wordlen = SPI_DEFAULT_WORDLEN;
 
 	return 0;
@@ -381,7 +380,7 @@ void spi_free_slave(struct spi_slave *slave)
 int spi_slave_ofdata_to_platdata(const void *blob, int node,
 				 struct dm_spi_slave_platdata *plat)
 {
-	int mode = 0, mode_rx = 0;
+	int mode = 0;
 	int value;
 
 	plat->cs = fdtdec_get_int(blob, node, "reg", -1);
@@ -413,24 +412,22 @@ int spi_slave_ofdata_to_platdata(const void *blob, int node,
 		break;
 	}
 
-	plat->mode = mode;
-
 	value = fdtdec_get_uint(blob, node, "spi-rx-bus-width", 1);
 	switch (value) {
 	case 1:
 		break;
 	case 2:
-		mode_rx |= SPI_RX_DUAL;
+		mode |= SPI_RX_DUAL;
 		break;
 	case 4:
-		mode_rx |= SPI_RX_QUAD;
+		mode |= SPI_RX_QUAD;
 		break;
 	default:
 		error("spi-rx-bus-width %d not supported\n", value);
 		break;
 	}
 
-	plat->mode_rx = mode_rx;
+	plat->mode = mode;
 
 	return 0;
 }

drivers/spi/ti_qspi.c

@@ -356,7 +356,7 @@ static void ti_spi_setup_spi_register(struct ti_qspi_priv *priv)
 			QSPI_SETUP0_NUM_D_BYTES_8_BITS |
 			QSPI_SETUP0_READ_QUAD | QSPI_CMD_WRITE |
 			QSPI_NUM_DUMMY_BITS);
-	slave->mode_rx = SPI_RX_QUAD;
+	slave->mode |= SPI_RX_QUAD;
 #else
 	memval |= QSPI_CMD_READ | QSPI_SETUP0_NUM_A_BYTES |
 			QSPI_SETUP0_NUM_D_BYTES_NO_BITS |
@@ -442,7 +442,7 @@ static void __ti_qspi_setup_memorymap(struct ti_qspi_priv *priv,
 				      bool enable)
 {
 	u32 memval;
-	u32 mode = slave->mode_rx & (SPI_RX_QUAD | SPI_RX_DUAL);
+	u32 mode = slave->mode & (SPI_RX_QUAD | SPI_RX_DUAL);
 
 	if (!enable) {
 		writel(0, &priv->base->setup0);
@@ -456,7 +456,7 @@ static void __ti_qspi_setup_memorymap(struct ti_qspi_priv *priv,
 		memval |= QSPI_CMD_READ_QUAD;
 		memval |= QSPI_SETUP0_NUM_D_BYTES_8_BITS;
 		memval |= QSPI_SETUP0_READ_QUAD;
-		slave->mode_rx = SPI_RX_QUAD;
+		slave->mode |= SPI_RX_QUAD;
 		break;
 	case SPI_RX_DUAL:
 		memval |= QSPI_CMD_READ_DUAL;

include/spi.h

@@ -26,12 +26,10 @@
 #define SPI_TX_BYTE	BIT(8)			/* transmit with 1 wire byte */
 #define SPI_TX_DUAL	BIT(9)			/* transmit with 2 wires */
 #define SPI_TX_QUAD	BIT(10)			/* transmit with 4 wires */
-
-/* SPI mode_rx flags */
-#define SPI_RX_SLOW	BIT(0)			/* receive with 1 wire slow */
-#define SPI_RX_FAST	BIT(1)			/* receive with 1 wire fast */
-#define SPI_RX_DUAL	BIT(2)			/* receive with 2 wires */
-#define SPI_RX_QUAD	BIT(3)			/* receive with 4 wires */
+#define SPI_RX_SLOW	BIT(11)			/* receive with 1 wire slow */
+#define SPI_RX_FAST	BIT(12)			/* receive with 1 wire fast */
+#define SPI_RX_DUAL	BIT(13)			/* receive with 2 wires */
+#define SPI_RX_QUAD	BIT(14)			/* receive with 4 wires */
 
 /* SPI bus connection options - see enum spi_dual_flash */
 #define SPI_CONN_DUAL_SHARED		(1 << 0)
@@ -61,13 +59,11 @@ struct dm_spi_bus {
  * @cs:		Chip select number (0..n-1)
  * @max_hz:	Maximum bus speed that this slave can tolerate
  * @mode:	SPI mode to use for this device (see SPI mode flags)
- * @mode_rx:	SPI RX mode to use for this slave (see SPI mode_rx flags)
  */
 struct dm_spi_slave_platdata {
 	unsigned int cs;
 	uint max_hz;
 	uint mode;
-	u8 mode_rx;
 };
 
 #endif /* CONFIG_DM_SPI */
@@ -94,7 +90,6 @@ struct dm_spi_slave_platdata {
  *			bus (bus->seq) so does not need to be stored
  * @cs:			ID of the chip select connected to the slave.
  * @mode:		SPI mode to use for this slave (see SPI mode flags)
- * @mode_rx:		SPI RX mode to use for this slave (see SPI mode_rx flags)
  * @wordlen:		Size of SPI word in number of bits
  * @max_write_size:	If non-zero, the maximum number of bytes which can
  *			be written at once, excluding command bytes.
@@ -112,7 +107,6 @@ struct spi_slave {
 	unsigned int cs;
 #endif
 	uint mode;
-	u8 mode_rx;
 	unsigned int wordlen;
 	unsigned int max_write_size;
 	void *memory_map;