diff options
author | Dmitry Osipenko <digetx@gmail.com> | 2015-01-26 11:55:02 -0500 |
---|---|---|
committer | Wolfram Sang <wsa@the-dreams.de> | 2015-01-26 15:58:43 -0500 |
commit | 8c340f6090e365ce5bac02eed07c1de3aa83f735 (patch) | |
tree | 592f69e93cbd5af1c83ae9a27a34fd4a660dbf8b /drivers/i2c | |
parent | 9136c5463f990d51c9f9361cd6be27f7f4d8fca7 (diff) |
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')
-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) | |||
286 | if (rx_fifo_avail > 0 && buf_remaining > 0) { | 286 | if (rx_fifo_avail > 0 && buf_remaining > 0) { |
287 | BUG_ON(buf_remaining > 3); | 287 | BUG_ON(buf_remaining > 3); |
288 | val = i2c_readl(i2c_dev, I2C_RX_FIFO); | 288 | val = i2c_readl(i2c_dev, I2C_RX_FIFO); |
289 | val = cpu_to_le32(val); | ||
289 | memcpy(buf, &val, buf_remaining); | 290 | memcpy(buf, &val, buf_remaining); |
290 | buf_remaining = 0; | 291 | buf_remaining = 0; |
291 | rx_fifo_avail--; | 292 | rx_fifo_avail--; |
@@ -344,6 +345,7 @@ static int tegra_i2c_fill_tx_fifo(struct tegra_i2c_dev *i2c_dev) | |||
344 | if (tx_fifo_avail > 0 && buf_remaining > 0) { | 345 | if (tx_fifo_avail > 0 && buf_remaining > 0) { |
345 | BUG_ON(buf_remaining > 3); | 346 | BUG_ON(buf_remaining > 3); |
346 | memcpy(&val, buf, buf_remaining); | 347 | memcpy(&val, buf, buf_remaining); |
348 | val = le32_to_cpu(val); | ||
347 | 349 | ||
348 | /* Again update before writing to FIFO to make sure isr sees. */ | 350 | /* Again update before writing to FIFO to make sure isr sees. */ |
349 | i2c_dev->msg_buf_remaining = 0; | 351 | i2c_dev->msg_buf_remaining = 0; |