This patch adds code to Initialize the DMA buffer to compensate for possible
hardware data corruption.
Signed-off-by: James Ralston <james.d.rals...@intel.com>
---
drivers/i2c/busses/i2c-ismt.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/i2c/busses/i2c-ismt.c b/drivers/i2c/busses/i2c-ismt.c
index 8ed79a0..d3f30ea 100644
--- a/drivers/i2c/busses/i2c-ismt.c
+++ b/drivers/i2c/busses/i2c-ismt.c
@@ -393,6 +393,9 @@ static int ismt_access(struct i2c_adapter *adap, u16 addr,
desc = &priv->hw[priv->head];
+ /* Initialize the DMA buffer */
+ memset(priv->dma_buffer, 0, (I2C_SMBUS_BLOCK_MAX+1));
+
/* Initialize the descriptor */
memset(desc, 0, sizeof(struct ismt_desc));
desc->tgtaddr_rw = ISMT_DESC_ADDR_RW(addr, read_write);
--
1.7.7.6
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