serial: sh-sci: Make sci_regmap[] const

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 1758039..383f6df 100644 (file)
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -147,7 +147,7 @@ struct plat_sci_reg {
 /* Helper for invalidating specific entries of an inherited map. */
 #define sci_reg_invalid        { .offset = 0, .size = 0 }
 
-static struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
+static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
        [SCIx_PROBE_REGTYPE] = {
                [0 ... SCIx_NR_REGS - 1] = sci_reg_invalid,
        },
@@ -400,7 +400,7 @@ static struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
  */
 static unsigned int sci_serial_in(struct uart_port *p, int offset)
 {
-       struct plat_sci_reg *reg = sci_getreg(p, offset);
+       const struct plat_sci_reg *reg = sci_getreg(p, offset);
 
        if (reg->size == 8)
                return ioread8(p->membase + (reg->offset << p->regshift));
@@ -414,7 +414,7 @@ static unsigned int sci_serial_in(struct uart_port *p, int offset)
 
 static void sci_serial_out(struct uart_port *p, int offset, int value)
 {
-       struct plat_sci_reg *reg = sci_getreg(p, offset);
+       const struct plat_sci_reg *reg = sci_getreg(p, offset);
 
        if (reg->size == 8)
                iowrite8(value, p->membase + (reg->offset << p->regshift));
@@ -552,7 +552,7 @@ static void sci_poll_put_char(struct uart_port *port, unsigned char c)
 static void sci_init_pins(struct uart_port *port, unsigned int cflag)
 {
        struct sci_port *s = to_sci_port(port);
-       struct plat_sci_reg *reg = sci_regmap[s->cfg->regtype] + SCSPTR;
+       const struct plat_sci_reg *reg = sci_regmap[s->cfg->regtype] + SCSPTR;
 
        /*
         * Use port-specific handler if provided.
@@ -582,7 +582,7 @@ static void sci_init_pins(struct uart_port *port, unsigned int cflag)
 
 static int sci_txfill(struct uart_port *port)
 {
-       struct plat_sci_reg *reg;
+       const struct plat_sci_reg *reg;
 
        reg = sci_getreg(port, SCTFDR);
        if (reg->size)
@@ -602,7 +602,7 @@ static int sci_txroom(struct uart_port *port)
 
 static int sci_rxfill(struct uart_port *port)
 {
-       struct plat_sci_reg *reg;
+       const struct plat_sci_reg *reg;
 
        reg = sci_getreg(port, SCRFDR);
        if (reg->size)
@@ -883,7 +883,7 @@ static int sci_handle_fifo_overrun(struct uart_port *port)
 {
        struct tty_port *tport = &port->state->port;
        struct sci_port *s = to_sci_port(port);
-       struct plat_sci_reg *reg;
+       const struct plat_sci_reg *reg;
        int copied = 0;
        u16 status;
 
@@ -1250,7 +1250,7 @@ static unsigned int sci_tx_empty(struct uart_port *port)
 static void sci_set_mctrl(struct uart_port *port, unsigned int mctrl)
 {
        if (mctrl & TIOCM_LOOP) {
-               struct plat_sci_reg *reg;
+               const struct plat_sci_reg *reg;
 
                /*
                 * Standard loopback mode for SCFCR ports.
@@ -1621,7 +1621,7 @@ static void sci_stop_rx(struct uart_port *port)
 static void sci_break_ctl(struct uart_port *port, int break_state)
 {
        struct sci_port *s = to_sci_port(port);
-       struct plat_sci_reg *reg = sci_regmap[s->cfg->regtype] + SCSPTR;
+       const struct plat_sci_reg *reg = sci_regmap[s->cfg->regtype] + SCSPTR;
        unsigned short scscr, scsptr;
 
        /* check wheter the port has SCSPTR */
@@ -1910,7 +1910,7 @@ static void sci_baud_calc_hscif(unsigned int bps, unsigned long freq,
 
 static void sci_reset(struct uart_port *port)
 {
-       struct plat_sci_reg *reg;
+       const struct plat_sci_reg *reg;
        unsigned int status;
 
        do {
@@ -1928,7 +1928,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
                            struct ktermios *old)
 {
        struct sci_port *s = to_sci_port(port);
-       struct plat_sci_reg *reg;
+       const struct plat_sci_reg *reg;
        unsigned int baud, smr_val = 0, max_baud, cks = 0;
        int t = -1;
        unsigned int srr = 15;