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tty: mmc: sdio_uart: switch sdio_in() to return u8
sdio_in() returns a value returned from sdio_readb(). The latter returns u8. So should the former. Therefore, switch sdio_in() return type to u8 and all its callers too. Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: linux-mmc@vger.kernel.org Link: https://lore.kernel.org/r/20231206073712.17776-3-jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -178,11 +178,9 @@ static inline void sdio_uart_release_func(struct sdio_uart_port *port)
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sdio_release_host(port->func);
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}
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static inline unsigned int sdio_in(struct sdio_uart_port *port, int offset)
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static inline u8 sdio_in(struct sdio_uart_port *port, int offset)
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{
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unsigned char c;
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c = sdio_readb(port->func, port->regs_offset + offset, NULL);
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return c;
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return sdio_readb(port->func, port->regs_offset + offset, NULL);
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}
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static inline void sdio_out(struct sdio_uart_port *port, int offset, int value)
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@ -192,8 +190,8 @@ static inline void sdio_out(struct sdio_uart_port *port, int offset, int value)
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static unsigned int sdio_uart_get_mctrl(struct sdio_uart_port *port)
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{
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unsigned char status;
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unsigned int ret;
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u8 status;
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/* FIXME: What stops this losing the delta bits and breaking
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sdio_uart_check_modem_status ? */
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@ -354,14 +352,13 @@ static void sdio_uart_stop_rx(struct sdio_uart_port *port)
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sdio_out(port, UART_IER, port->ier);
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}
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static void sdio_uart_receive_chars(struct sdio_uart_port *port,
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unsigned int *status)
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static void sdio_uart_receive_chars(struct sdio_uart_port *port, u8 *status)
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{
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unsigned int ch, flag;
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unsigned int flag;
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int max_count = 256;
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do {
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ch = sdio_in(port, UART_RX);
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u8 ch = sdio_in(port, UART_RX);
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flag = TTY_NORMAL;
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port->icount.rx++;
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@ -449,8 +446,8 @@ static void sdio_uart_transmit_chars(struct sdio_uart_port *port)
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static void sdio_uart_check_modem_status(struct sdio_uart_port *port)
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{
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int status;
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struct tty_struct *tty;
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u8 status;
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status = sdio_in(port, UART_MSR);
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@ -499,7 +496,7 @@ static void sdio_uart_check_modem_status(struct sdio_uart_port *port)
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static void sdio_uart_irq(struct sdio_func *func)
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{
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struct sdio_uart_port *port = sdio_get_drvdata(func);
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unsigned int iir, lsr;
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u8 iir, lsr;
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/*
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* In a few places sdio_uart_irq() is called directly instead of
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