diff options
| author | Sherry Sun <sherry.sun@nxp.com> | 2023-07-10 09:38:56 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-07-25 20:24:26 +0200 |
| commit | 9cb31a2824f9399930ef0c9c449cec258bac66e4 (patch) | |
| tree | b79ba1769098609e7655c3d2da6d4df0d886b356 /drivers/tty/serial/fsl_lpuart.c | |
| parent | 290c80069c731e81f4949bfa34fedc8d8a5a793e (diff) | |
tty: serial: fsl_lpuart: move the lpuart32_int() below
Move the lpuart32_int() below lpuart_copy_rx_to_tty(), this is a
preparation patch for the next patch to avoid the function declaration,
no actual functional changes.
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Link: https://lore.kernel.org/r/20230710013857.7396-2-sherry.sun@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/fsl_lpuart.c')
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 39 |
1 files changed, 19 insertions, 20 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index e1a8d5415718..159a2de509f3 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -1064,26 +1064,6 @@ static irqreturn_t lpuart_int(int irq, void *dev_id) return IRQ_HANDLED; } -static irqreturn_t lpuart32_int(int irq, void *dev_id) -{ - struct lpuart_port *sport = dev_id; - unsigned long sts, rxcount; - - sts = lpuart32_read(&sport->port, UARTSTAT); - rxcount = lpuart32_read(&sport->port, UARTWATER); - rxcount = rxcount >> UARTWATER_RXCNT_OFF; - - if ((sts & UARTSTAT_RDRF || rxcount > 0) && !sport->lpuart_dma_rx_use) - lpuart32_rxint(sport); - - if ((sts & UARTSTAT_TDRE) && !sport->lpuart_dma_tx_use) - lpuart32_txint(sport); - - lpuart32_write(&sport->port, sts, UARTSTAT); - return IRQ_HANDLED; -} - - static inline void lpuart_handle_sysrq_chars(struct uart_port *port, unsigned char *p, int count) { @@ -1276,6 +1256,25 @@ static void lpuart_dma_rx_complete(void *arg) lpuart_copy_rx_to_tty(sport); } +static irqreturn_t lpuart32_int(int irq, void *dev_id) +{ + struct lpuart_port *sport = dev_id; + unsigned long sts, rxcount; + + sts = lpuart32_read(&sport->port, UARTSTAT); + rxcount = lpuart32_read(&sport->port, UARTWATER); + rxcount = rxcount >> UARTWATER_RXCNT_OFF; + + if ((sts & UARTSTAT_RDRF || rxcount > 0) && !sport->lpuart_dma_rx_use) + lpuart32_rxint(sport); + + if ((sts & UARTSTAT_TDRE) && !sport->lpuart_dma_tx_use) + lpuart32_txint(sport); + + lpuart32_write(&sport->port, sts, UARTSTAT); + return IRQ_HANDLED; +} + /* * Timer function to simulate the hardware EOP (End Of Package) event. * The timer callback is to check for new RX data and copy to TTY buffer. |