[PATCH 12/17] spi/qspi: convert driver to enable/disable memory mapped.

[Sourav Poddar]

Idea is to enable memory mapped by default at the end of the probe,
if the control reaches the "transfer" api, then the operation is
not a memory mapped one. Hence, we switch to Normal mode and at the
end of the "transfer" function. switch back to memory mapped mode.

Signed-off-by: Sourav Poddar <sourav.poddar at ti.com>
---
 drivers/spi/spi-ti-qspi.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index d21d40d..ba95d64 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -415,6 +415,8 @@ static int ti_qspi_start_transfer_one(struct spi_master *master,
 	int status = 0, ret;
 	int frame_length;
 
+	disable_qspi_memory_mapped(qspi);
+
 	/* setup device control reg */
 	qspi->dc = 0;
 
@@ -460,6 +462,8 @@ static int ti_qspi_start_transfer_one(struct spi_master *master,
 
 	ti_qspi_write(qspi, qspi->cmd | QSPI_INVAL, QSPI_SPI_CMD_REG);
 
+	enable_qspi_memory_mapped(qspi);
+
 	return status;
 }
 
@@ -613,6 +617,8 @@ static int ti_qspi_probe(struct platform_device *pdev)
 	if (ret)
 		goto free_master;
 
+	enable_qspi_memory_mapped(qspi);
+
 	return 0;
 
 free_master:
-- 
1.7.1