From: Hugo Villeneuve hvilleneuve@dimonoff.com

To simplify function by avoiding cast.

This is similar to what is done in max310x driver.

Signed-off-by: Hugo Villeneuve hvilleneuve@dimonoff.com --- If deemed appropriate for stable kernel backporting: Fixes: dec273ecc116 ("sc16is7xx: fix FIFO address of secondary UART") Cc: stable@vger.kernel.org --- drivers/tty/serial/sc16is7xx.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index a9e44e5ef713..3322507ab18e 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -380,17 +380,15 @@ static void sc16is7xx_port_write(struct uart_port *port, u8 reg, u8 val) regmap_write(one->regmap, reg, val); }

-static void sc16is7xx_fifo_read(struct uart_port *port, unsigned int rxlen) +static void sc16is7xx_fifo_read(struct uart_port *port, u8 *rxbuf, unsigned int rxlen) { - struct sc16is7xx_port *s = dev_get_drvdata(port->dev); struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);

- regmap_noinc_read(one->regmap, SC16IS7XX_RHR_REG, s->buf, rxlen); + regmap_noinc_read(one->regmap, SC16IS7XX_RHR_REG, rxbuf, rxlen); }

-static void sc16is7xx_fifo_write(struct uart_port *port, u8 to_send) +static void sc16is7xx_fifo_write(struct uart_port *port, u8 *txbuf, u8 to_send) { - struct sc16is7xx_port *s = dev_get_drvdata(port->dev); struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);

/* @@ -400,7 +398,7 @@ static void sc16is7xx_fifo_write(struct uart_port *port, u8 to_send) if (unlikely(!to_send)) return;

- regmap_noinc_write(one->regmap, SC16IS7XX_THR_REG, s->buf, to_send); + regmap_noinc_write(one->regmap, SC16IS7XX_THR_REG, txbuf, to_send); }

static void sc16is7xx_port_update(struct uart_port *port, u8 reg, @@ -576,7 +574,7 @@ static void sc16is7xx_handle_rx(struct uart_port *port, unsigned int rxlen, s->buf[0] = sc16is7xx_port_read(port, SC16IS7XX_RHR_REG); bytes_read = 1; } else { - sc16is7xx_fifo_read(port, rxlen); + sc16is7xx_fifo_read(port, s->buf, rxlen); bytes_read = rxlen; }

@@ -665,7 +663,7 @@ static void sc16is7xx_handle_tx(struct uart_port *port) uart_xmit_advance(port, 1); }

- sc16is7xx_fifo_write(port, to_send); + sc16is7xx_fifo_write(port, s->buf, to_send); }

uart_port_lock_irqsave(port, &flags);