[PATCH 13/17] drivers: mtd: m25p80: Add api to configure master register.

[Sourav Poddar]

These can be used to fill information needed to configure 
master controller registers.

Signed-off-by: Sourav Poddar <sourav.poddar at ti.com>
---
 drivers/mtd/devices/m25p80.c |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 7dc2c14..6a27677 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -490,6 +490,23 @@ static inline int m25p80_dummy_cycles_read(struct m25p *flash)
 }
 
 /*
+ * This API can be used to transfer flash information to
+ * SPI controller which needs some of its registers to get
+ * configured on flash.
+ */
+static void m25p80_fill_flash_information(struct m25p *flash)
+{
+	struct spi_master *master = flash->spi->master;
+	u8 info[4];
+	info[0] = flash->read_opcode;
+	info[1] = flash->program_opcode;
+	info[2] = flash->addr_width;
+	info[3] = m25p80_dummy_cycles_read(flash);
+
+	master->configure_from_slave(flash->spi, info);
+}
+
+/*
  * Read an address range from the flash chip.  The address range
  * may be any size provided it is within the physical boundaries.
  */
-- 
1.7.1