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path: root/drivers/i2c/tegra_i2c.c
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Diffstat (limited to 'drivers/i2c/tegra_i2c.c')
-rw-r--r--drivers/i2c/tegra_i2c.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/i2c/tegra_i2c.c b/drivers/i2c/tegra_i2c.c
index 97f0ca4..a62f30e 100644
--- a/drivers/i2c/tegra_i2c.c
+++ b/drivers/i2c/tegra_i2c.c
@@ -224,14 +224,16 @@ static int send_recv_packets(struct i2c_bus *i2c_bus,
if (is_write) {
/* deal with word alignment */
- if ((unsigned)dptr & 3) {
+ if ((words == 1) && last_bytes) {
+ local = 0;
+ memcpy(&local, dptr, last_bytes);
+ } else if ((unsigned)dptr & 3) {
memcpy(&local, dptr, sizeof(u32));
- writel(local, &control->tx_fifo);
- debug("pkt data sent (0x%x)\n", local);
} else {
- writel(*wptr, &control->tx_fifo);
- debug("pkt data sent (0x%x)\n", *wptr);
+ local = *wptr;
}
+ writel(local, &control->tx_fifo);
+ debug("pkt data sent (0x%x)\n", local);
if (!wait_for_tx_fifo_empty(control)) {
error = -1;
goto exit;