diff options
| author | Karthikeyan Ramasubramanian <kramasub@codeaurora.org> | 2018-05-03 14:14:38 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-14 13:44:55 +0200 |
| commit | 69736b57dfe57d116cac7846006cb4b0be9ac0d0 (patch) | |
| tree | 0989b1717f9b843bc918d55aa79cdcf234c50b10 /drivers/tty | |
| parent | 7fb5b8800194c0d9a5d2aa8b3983cf7bc615b3ea (diff) | |
| download | linux-69736b57dfe57d116cac7846006cb4b0be9ac0d0.tar.bz2 | |
tty: serial: qcom_geni_serial: Use iowrite32_rep to write to FIFO
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@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/qcom_geni_serial.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c index 3e9de6c780d3..b0758606b676 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); |