Use iowrite32_rep to write to the hardware FIFO so that the code does
not have to worry about the system endianness.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@xxxxxxxxxxxxxx>
Reviewed-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
---
drivers/tty/serial/qcom_geni_serial.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index b0b1aa3..ba1584a 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -600,14 +600,15 @@ static void qcom_geni_serial_handle_tx(struct uart_port *uport)
remaining = chunk;
for (i = 0; i < chunk; ) {
unsigned int tx_bytes;
- unsigned int buf = 0;
+ u8 buf[sizeof(u32)];
int c;
+ memset(buf, 0, ARRAY_SIZE(buf));
tx_bytes = min_t(size_t, remaining, port->tx_bytes_pw);
for (c = 0; c < tx_bytes ; c++)
- buf |= (xmit->buf[tail + c] << (c * BITS_PER_BYTE));
+ buf[c] = xmit->buf[tail + c];
- writel_relaxed(buf, uport->membase + SE_GENI_TX_FIFOn);
+ iowrite32_rep(uport->membase + SE_GENI_TX_FIFOn, buf, 1);
i += tx_bytes;
tail = (tail + tx_bytes) & (UART_XMIT_SIZE - 1);
--
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a Linux Foundation Collaborative Project
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