From 8c340f6090e365ce5bac02eed07c1de3aa83f735 Mon Sep 17 00:00:00 2001 From: Dmitry Osipenko Date: Mon, 26 Jan 2015 19:55:02 +0300 Subject: i2c: tegra: Maintain CPU endianness Support CPU BE mode by adding endianness conversion for memcpy interactions. Signed-off-by: Dmitry Osipenko Acked-by: Alexandre Courbot Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-tegra.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/i2c') diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 28b87e6..29f1433 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; -- cgit v1.1