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| author | Dmitry Osipenko <digetx@gmail.com> | 2015-01-26 19:55:02 +0300 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2015-01-26 21:58:43 +0100 |
| commit | 8c340f6090e365ce5bac02eed07c1de3aa83f735 (patch) | |
| tree | 592f69e93cbd5af1c83ae9a27a34fd4a660dbf8b /drivers/i2c/busses | |
| parent | 9136c5463f990d51c9f9361cd6be27f7f4d8fca7 (diff) | |
| download | linux-8c340f6090e365ce5bac02eed07c1de3aa83f735.tar.bz2 | |
i2c: tegra: Maintain CPU endianness
Support CPU BE mode by adding endianness conversion for memcpy interactions.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c/busses')
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 28b87e683503..29f14331dd9d 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -286,6 +286,7 @@ static int tegra_i2c_empty_rx_fifo(struct tegra_i2c_dev *i2c_dev) if (rx_fifo_avail > 0 && buf_remaining > 0) { BUG_ON(buf_remaining > 3); val = i2c_readl(i2c_dev, I2C_RX_FIFO); + val = cpu_to_le32(val); memcpy(buf, &val, buf_remaining); buf_remaining = 0; rx_fifo_avail--; @@ -344,6 +345,7 @@ static int tegra_i2c_fill_tx_fifo(struct tegra_i2c_dev *i2c_dev) if (tx_fifo_avail > 0 && buf_remaining > 0) { BUG_ON(buf_remaining > 3); memcpy(&val, buf, buf_remaining); + val = le32_to_cpu(val); /* Again update before writing to FIFO to make sure isr sees. */ i2c_dev->msg_buf_remaining = 0; |