[PATCH] i2c-omap: Double clear of ARDY status in IRQ handler

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From: Richard woodruff <r-woodruff2@xxxxxx>

ProDB00017052 - ARDY interrupt reasserted after being cleared.
This errata caused intermittent i2c instabilty(1 error per 3 hours) on several
customer platforms. After applying the workaround the intermittent errors were
not seen. This is not captured in the usual errata documents.

The workaround is to have a double clear of ARDY status in
irq handler.

Signed-off-by: Richard woodruff <r-woodruff2@xxxxxx>
Signed-off-by: Keerthy <j-keerthy@xxxxxx>
---
 drivers/i2c/busses/i2c-omap.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 445de08..9bcefae 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -851,7 +851,8 @@ complete:
 					OMAP_I2C_STAT_AL)) {
 			omap_i2c_ack_stat(dev, stat &
 				(OMAP_I2C_STAT_RRDY | OMAP_I2C_STAT_RDR |
-				OMAP_I2C_STAT_XRDY | OMAP_I2C_STAT_XDR));
+				OMAP_I2C_STAT_XRDY | OMAP_I2C_STAT_XDR |
+				OMAP_I2C_STAT_ARDY));
 			omap_i2c_complete_cmd(dev, err);
 			return IRQ_HANDLED;
 		}
-- 
1.7.0.4

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