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Commit 8c340f60 authored by Dmitry Osipenko's avatar Dmitry Osipenko Committed by Wolfram Sang
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i2c: tegra: Maintain CPU endianness 



Support CPU BE mode by adding endianness conversion for memcpy interactions.

Signed-off-by: default avatarDmitry Osipenko <digetx@gmail.com>
Acked-by: default avatarAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent 9136c546

drivers/i2c/busses/i2c-tegra.c

+2 −0
Original line number Diff line number Diff line
@@ -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;