From 006110476478c69c399d0cd25888eefab0e69267 Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Wed, 18 Feb 2015 00:33:51 +0530
Subject: [PATCH] drivers: spi: ti-qspi: wait for busy bit clear before data
 write/read

Data corruption is seen while reading/writing large data from/to qspi
device because the data register is over written or read before data
is ready which is denoted by busy bit in status register. SO adding
a busy bit check before writing/reading data to/from qspi device.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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