[SERIAL] amba-pl010: Remove accessor macros

Remove unnecessary accessor macros, using readb/writel directly
instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c
index e04d5e82d9ae3e4e2f819348cce10cb53a3233e0..127d6cd5de7ffb636b0b75bf613f6702d2d3aa18 100644 (file)
--- a/drivers/serial/amba-pl010.c
+++ b/drivers/serial/amba-pl010.c
@@ -62,26 +62,8 @@
 
 #define AMBA_ISR_PASS_LIMIT    256
 
-/*
- * Access macros for the AMBA UARTs
- */
-#define UART_GET_INT_STATUS(p) readb((p)->membase + UART010_IIR)
-#define UART_PUT_ICR(p, c)     writel((c), (p)->membase + UART010_ICR)
-#define UART_GET_FR(p)         readb((p)->membase + UART01x_FR)
-#define UART_GET_CHAR(p)       readb((p)->membase + UART01x_DR)
-#define UART_PUT_CHAR(p, c)    writel((c), (p)->membase + UART01x_DR)
-#define UART_GET_RSR(p)                readb((p)->membase + UART01x_RSR)
-#define UART_GET_CR(p)         readb((p)->membase + UART010_CR)
-#define UART_PUT_CR(p,c)       writel((c), (p)->membase + UART010_CR)
-#define UART_GET_LCRL(p)       readb((p)->membase + UART010_LCRL)
-#define UART_PUT_LCRL(p,c)     writel((c), (p)->membase + UART010_LCRL)
-#define UART_GET_LCRM(p)       readb((p)->membase + UART010_LCRM)
-#define UART_PUT_LCRM(p,c)     writel((c), (p)->membase + UART010_LCRM)
-#define UART_GET_LCRH(p)       readb((p)->membase + UART010_LCRH)
-#define UART_PUT_LCRH(p,c)     writel((c), (p)->membase + UART010_LCRH)
 #define UART_RX_DATA(s)                (((s) & UART01x_FR_RXFE) == 0)
 #define UART_TX_READY(s)       (((s) & UART01x_FR_TXFF) == 0)
-#define UART_TX_EMPTY(p)       ((UART_GET_FR(p) & UART01x_FR_TMSK) == 0)
 
 #define UART_DUMMY_RSR_RX      /*256*/0
 #define UART_PORT_SIZE         64
@@ -110,36 +92,36 @@ static void pl010_stop_tx(struct uart_port *port)
 {
        unsigned int cr;
 
-       cr = UART_GET_CR(port);
+       cr = readb(port->membase + UART010_CR);
        cr &= ~UART010_CR_TIE;
-       UART_PUT_CR(port, cr);
+       writel(cr, port->membase + UART010_CR);
 }
 
 static void pl010_start_tx(struct uart_port *port)
 {
        unsigned int cr;
 
-       cr = UART_GET_CR(port);
+       cr = readb(port->membase + UART010_CR);
        cr |= UART010_CR_TIE;
-       UART_PUT_CR(port, cr);
+       writel(cr, port->membase + UART010_CR);
 }
 
 static void pl010_stop_rx(struct uart_port *port)
 {
        unsigned int cr;
 
-       cr = UART_GET_CR(port);
+       cr = readb(port->membase + UART010_CR);
        cr &= ~(UART010_CR_RIE | UART010_CR_RTIE);
-       UART_PUT_CR(port, cr);
+       writel(cr, port->membase + UART010_CR);
 }
 
 static void pl010_enable_ms(struct uart_port *port)
 {
        unsigned int cr;
 
-       cr = UART_GET_CR(port);
+       cr = readb(port->membase + UART010_CR);
        cr |= UART010_CR_MSIE;
-       UART_PUT_CR(port, cr);
+       writel(cr, port->membase + UART010_CR);
 }
 
 static void
@@ -152,9 +134,9 @@ pl010_rx_chars(struct uart_port *port)
        struct tty_struct *tty = port->info->tty;
        unsigned int status, ch, flag, rsr, max_count = 256;
 
-       status = UART_GET_FR(port);
+       status = readb(port->membase + UART01x_FR);
        while (UART_RX_DATA(status) && max_count--) {
-               ch = UART_GET_CHAR(port);
+               ch = readb(port->membase + UART01x_DR);
                flag = TTY_NORMAL;
 
                port->icount.rx++;
@@ -163,7 +145,7 @@ pl010_rx_chars(struct uart_port *port)
                 * Note that the error handling code is
                 * out of the main execution path
                 */
-               rsr = UART_GET_RSR(port) | UART_DUMMY_RSR_RX;
+               rsr = readb(port->membase + UART01x_RSR) | UART_DUMMY_RSR_RX;
                if (unlikely(rsr & UART01x_RSR_ANY)) {
                        if (rsr & UART01x_RSR_BE) {
                                rsr &= ~(UART01x_RSR_FE | UART01x_RSR_PE);
@@ -193,7 +175,7 @@ pl010_rx_chars(struct uart_port *port)
                uart_insert_char(port, rsr, UART01x_RSR_OE, ch, flag);
 
        ignore_char:
-               status = UART_GET_FR(port);
+               status = readb(port->membase + UART01x_FR);
        }
        tty_flip_buffer_push(tty);
        return;
@@ -205,7 +187,7 @@ static void pl010_tx_chars(struct uart_port *port)
        int count;
 
        if (port->x_char) {
-               UART_PUT_CHAR(port, port->x_char);
+               writel(port->x_char, port->membase + UART01x_DR);
                port->icount.tx++;
                port->x_char = 0;
                return;
@@ -217,7 +199,7 @@ static void pl010_tx_chars(struct uart_port *port)
 
        count = port->fifosize >> 1;
        do {
-               UART_PUT_CHAR(port, xmit->buf[xmit->tail]);
+               writel(xmit->buf[xmit->tail], port->membase + UART01x_DR);
                xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
                port->icount.tx++;
                if (uart_circ_empty(xmit))
@@ -236,9 +218,9 @@ static void pl010_modem_status(struct uart_port *port)
        struct uart_amba_port *uap = (struct uart_amba_port *)port;
        unsigned int status, delta;
 
-       UART_PUT_ICR(&uap->port, 0);
+       writel(0, uap->port.membase + UART010_ICR);
 
-       status = UART_GET_FR(&uap->port) & UART01x_FR_MODEM_ANY;
+       status = readb(uap->port.membase + UART01x_FR) & UART01x_FR_MODEM_ANY;
 
        delta = status ^ uap->old_status;
        uap->old_status = status;
@@ -266,7 +248,7 @@ static irqreturn_t pl010_int(int irq, void *dev_id, struct pt_regs *regs)
 
        spin_lock(&port->lock);
 
-       status = UART_GET_INT_STATUS(port);
+       status = readb(port->membase + UART010_IIR);
        if (status) {
                do {
                        if (status & (UART010_IIR_RTIS | UART010_IIR_RIS))
@@ -283,7 +265,7 @@ static irqreturn_t pl010_int(int irq, void *dev_id, struct pt_regs *regs)
                        if (pass_counter-- == 0)
                                break;
 
-                       status = UART_GET_INT_STATUS(port);
+                       status = readb(port->membase + UART010_IIR);
                } while (status & (UART010_IIR_RTIS | UART010_IIR_RIS |
                                   UART010_IIR_TIS));
                handled = 1;
@@ -296,7 +278,7 @@ static irqreturn_t pl010_int(int irq, void *dev_id, struct pt_regs *regs)
 
 static unsigned int pl010_tx_empty(struct uart_port *port)
 {
-       return UART_GET_FR(port) & UART01x_FR_BUSY ? 0 : TIOCSER_TEMT;
+       return readb(port->membase + UART01x_FR) & UART01x_FR_BUSY ? 0 : TIOCSER_TEMT;
 }
 
 static unsigned int pl010_get_mctrl(struct uart_port *port)
@@ -304,7 +286,7 @@ static unsigned int pl010_get_mctrl(struct uart_port *port)
        unsigned int result = 0;
        unsigned int status;
 
-       status = UART_GET_FR(port);
+       status = readb(port->membase + UART01x_FR);
        if (status & UART01x_FR_DCD)
                result |= TIOCM_CAR;
        if (status & UART01x_FR_DSR)
@@ -340,12 +322,12 @@ static void pl010_break_ctl(struct uart_port *port, int break_state)
        unsigned int lcr_h;
 
        spin_lock_irqsave(&port->lock, flags);
-       lcr_h = UART_GET_LCRH(port);
+       lcr_h = readb(port->membase + UART010_LCRH);
        if (break_state == -1)
                lcr_h |= UART01x_LCRH_BRK;
        else
                lcr_h &= ~UART01x_LCRH_BRK;
-       UART_PUT_LCRH(port, lcr_h);
+       writel(lcr_h, port->membase + UART010_LCRH);
        spin_unlock_irqrestore(&port->lock, flags);
 }
 
@@ -364,13 +346,13 @@ static int pl010_startup(struct uart_port *port)
        /*
         * initialise the old status of the modem signals
         */
-       uap->old_status = UART_GET_FR(port) & UART01x_FR_MODEM_ANY;
+       uap->old_status = readb(port->membase + UART01x_FR) & UART01x_FR_MODEM_ANY;
 
        /*
         * Finally, enable interrupts
         */
-       UART_PUT_CR(port, UART01x_CR_UARTEN | UART010_CR_RIE |
-                         UART010_CR_RTIE);
+       writel(UART01x_CR_UARTEN | UART010_CR_RIE | UART010_CR_RTIE,
+              port->membase + UART010_CR);
 
        return 0;
 }
@@ -385,11 +367,12 @@ static void pl010_shutdown(struct uart_port *port)
        /*
         * disable all interrupts, disable the port
         */
-       UART_PUT_CR(port, 0);
+       writel(0, port->membase + UART010_CR);
 
        /* disable break condition and fifos */
-       UART_PUT_LCRH(port, UART_GET_LCRH(port) &
-               ~(UART01x_LCRH_BRK | UART01x_LCRH_FEN));
+       writel(readb(port->membase + UART010_LCRH) &
+               ~(UART01x_LCRH_BRK | UART01x_LCRH_FEN),
+              port->membase + UART010_LCRH);
 }
 
 static void
@@ -466,25 +449,25 @@ pl010_set_termios(struct uart_port *port, struct termios *termios,
                port->ignore_status_mask |= UART_DUMMY_RSR_RX;
 
        /* first, disable everything */
-       old_cr = UART_GET_CR(port) & ~UART010_CR_MSIE;
+       old_cr = readb(port->membase + UART010_CR) & ~UART010_CR_MSIE;
 
        if (UART_ENABLE_MS(port, termios->c_cflag))
                old_cr |= UART010_CR_MSIE;
 
-       UART_PUT_CR(port, 0);
+       writel(0, port->membase + UART010_CR);
 
        /* Set baud rate */
        quot -= 1;
-       UART_PUT_LCRM(port, ((quot & 0xf00) >> 8));
-       UART_PUT_LCRL(port, (quot & 0xff));
+       writel((quot & 0xf00) >> 8, port->membase + UART010_LCRM);
+       writel(quot & 0xff, port->membase + UART010_LCRL);
 
        /*
         * ----------v----------v----------v----------v-----
         * NOTE: MUST BE WRITTEN AFTER UARTLCR_M & UARTLCR_L
         * ----------^----------^----------^----------^-----
         */
-       UART_PUT_LCRH(port, lcr_h);
-       UART_PUT_CR(port, old_cr);
+       writel(lcr_h, port->membase + UART010_LCRH);
+       writel(old_cr, port->membase + UART010_CR);
 
        spin_unlock_irqrestore(&port->lock, flags);
 }
@@ -593,9 +576,13 @@ static struct uart_amba_port amba_ports[UART_NR] = {
 
 static void pl010_console_putchar(struct uart_port *port, int ch)
 {
-       while (!UART_TX_READY(UART_GET_FR(port)))
+       unsigned int status;
+
+       do {
+               status = readb(port->membase + UART01x_FR);
                barrier();
-       UART_PUT_CHAR(port, ch);
+       } while (!UART_TX_READY(status));
+       writel(ch, port->membase + UART01x_DR);
 }
 
 static void
@@ -607,8 +594,8 @@ pl010_console_write(struct console *co, const char *s, unsigned int count)
        /*
         *      First save the CR then disable the interrupts
         */
-       old_cr = UART_GET_CR(port);
-       UART_PUT_CR(port, UART01x_CR_UARTEN);
+       old_cr = readb(port->membase + UART010_CR);
+       writel(UART01x_CR_UARTEN, port->membase + UART010_CR);
 
        uart_console_write(port, s, count, pl010_console_putchar);
 
@@ -617,18 +604,19 @@ pl010_console_write(struct console *co, const char *s, unsigned int count)
         *      and restore the TCR
         */
        do {
-               status = UART_GET_FR(port);
+               status = readb(port->membase + UART01x_FR);
+               barrier();
        } while (status & UART01x_FR_BUSY);
-       UART_PUT_CR(port, old_cr);
+       writel(old_cr, port->membase + UART010_CR);
 }
 
 static void __init
 pl010_console_get_options(struct uart_port *port, int *baud,
                             int *parity, int *bits)
 {
-       if (UART_GET_CR(port) & UART01x_CR_UARTEN) {
+       if (readb(port->membase + UART010_CR) & UART01x_CR_UARTEN) {
                unsigned int lcr_h, quot;
-               lcr_h = UART_GET_LCRH(port);
+               lcr_h = readb(port->membase + UART010_LCRH);
 
                *parity = 'n';
                if (lcr_h & UART01x_LCRH_PEN) {
@@ -643,7 +631,7 @@ pl010_console_get_options(struct uart_port *port, int *baud,
                else
                        *bits = 8;
 
-               quot = UART_GET_LCRL(port) | UART_GET_LCRM(port) << 8;
+               quot = readb(port->membase + UART010_LCRL) | readb(port->membase + UART010_LCRM) << 8;
                *baud = port->uartclk / (16 * (quot + 1));
        }
 }