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path: root/drivers/tty/serial/sh-sci.c
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Diffstat (limited to 'drivers/tty/serial/sh-sci.c')
-rw-r--r--drivers/tty/serial/sh-sci.c89
1 files changed, 44 insertions, 45 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index be33d2b0613b..88236da0ddf7 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -428,7 +428,7 @@ static int sci_probe_regmap(struct plat_sci_port *cfg)
cfg->regtype = SCIx_HSCIF_REGTYPE;
break;
default:
- printk(KERN_ERR "Can't probe register map for given port\n");
+ pr_err("Can't probe register map for given port\n");
return -EINVAL;
}
@@ -788,7 +788,7 @@ static int sci_handle_errors(struct uart_port *port)
if (tty_insert_flip_char(tport, 0, TTY_OVERRUN))
copied++;
- dev_notice(port->dev, "overrun error");
+ dev_notice(port->dev, "overrun error\n");
}
if (status & SCxSR_FER(port)) {
@@ -830,7 +830,7 @@ static int sci_handle_errors(struct uart_port *port)
if (tty_insert_flip_char(tport, 0, TTY_PARITY))
copied++;
- dev_notice(port->dev, "parity error");
+ dev_notice(port->dev, "parity error\n");
}
if (copied)
@@ -911,7 +911,7 @@ static irqreturn_t sci_rx_interrupt(int irq, void *ptr)
/* Disable future Rx interrupts */
if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) {
disable_irq_nosync(irq);
- scr |= 0x4000;
+ scr |= SCSCR_RDRQE;
} else {
scr &= ~SCSCR_RIE;
}
@@ -1041,8 +1041,7 @@ static int sci_notifier(struct notifier_block *self,
sci_port = container_of(self, struct sci_port, freq_transition);
- if ((phase == CPUFREQ_POSTCHANGE) ||
- (phase == CPUFREQ_RESUMECHANGE)) {
+ if (phase == CPUFREQ_POSTCHANGE) {
struct uart_port *port = &sci_port->port;
spin_lock_irqsave(&port->lock, flags);
@@ -1200,7 +1199,9 @@ static void sci_set_mctrl(struct uart_port *port, unsigned int mctrl)
*/
reg = sci_getreg(port, SCFCR);
if (reg->size)
- serial_port_out(port, SCFCR, serial_port_in(port, SCFCR) | 1);
+ serial_port_out(port, SCFCR,
+ serial_port_in(port, SCFCR) |
+ SCFCR_LOOP);
}
}
@@ -1290,7 +1291,8 @@ static void sci_dma_rx_complete(void *arg)
unsigned long flags;
int count;
- dev_dbg(port->dev, "%s(%d) active #%d\n", __func__, port->line, s->active_rx);
+ dev_dbg(port->dev, "%s(%d) active #%d\n",
+ __func__, port->line, s->active_rx);
spin_lock_irqsave(&port->lock, flags);
@@ -1366,8 +1368,8 @@ static void sci_submit_rx(struct sci_port *s)
sci_rx_dma_release(s, true);
return;
}
- dev_dbg(s->port.dev, "%s(): cookie %d to #%d\n", __func__,
- s->cookie_rx[i], i);
+ dev_dbg(s->port.dev, "%s(): cookie %d to #%d\n",
+ __func__, s->cookie_rx[i], i);
}
s->active_rx = s->cookie_rx[0];
@@ -1426,8 +1428,8 @@ static void work_fn_rx(struct work_struct *work)
s->active_rx = s->cookie_rx[!new];
- dev_dbg(port->dev, "%s: cookie %d #%d, new active #%d\n", __func__,
- s->cookie_rx[new], new, s->active_rx);
+ dev_dbg(port->dev, "%s: cookie %d #%d, new active #%d\n",
+ __func__, s->cookie_rx[new], new, s->active_rx);
}
static void work_fn_tx(struct work_struct *work)
@@ -1480,8 +1482,8 @@ static void work_fn_tx(struct work_struct *work)
return;
}
- dev_dbg(port->dev, "%s: %p: %d...%d, cookie %d\n", __func__,
- xmit->buf, xmit->tail, xmit->head, s->cookie_tx);
+ dev_dbg(port->dev, "%s: %p: %d...%d, cookie %d\n",
+ __func__, xmit->buf, xmit->tail, xmit->head, s->cookie_tx);
dma_async_issue_pending(chan);
}
@@ -1496,9 +1498,9 @@ static void sci_start_tx(struct uart_port *port)
if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) {
u16 new, scr = serial_port_in(port, SCSCR);
if (s->chan_tx)
- new = scr | 0x8000;
+ new = scr | SCSCR_TDRQE;
else
- new = scr & ~0x8000;
+ new = scr & ~SCSCR_TDRQE;
if (new != scr)
serial_port_out(port, SCSCR, new);
}
@@ -1525,7 +1527,7 @@ static void sci_stop_tx(struct uart_port *port)
ctrl = serial_port_in(port, SCSCR);
if (port->type == PORT_SCIFA || port->type == PORT_SCIFB)
- ctrl &= ~0x8000;
+ ctrl &= ~SCSCR_TDRQE;
ctrl &= ~SCSCR_TIE;
@@ -1539,7 +1541,7 @@ static void sci_start_rx(struct uart_port *port)
ctrl = serial_port_in(port, SCSCR) | port_rx_irq_mask(port);
if (port->type == PORT_SCIFA || port->type == PORT_SCIFB)
- ctrl &= ~0x4000;
+ ctrl &= ~SCSCR_RDRQE;
serial_port_out(port, SCSCR, ctrl);
}
@@ -1551,7 +1553,7 @@ static void sci_stop_rx(struct uart_port *port)
ctrl = serial_port_in(port, SCSCR);
if (port->type == PORT_SCIFA || port->type == PORT_SCIFB)
- ctrl &= ~0x4000;
+ ctrl &= ~SCSCR_RDRQE;
ctrl &= ~port_rx_irq_mask(port);
@@ -1600,8 +1602,8 @@ static bool filter(struct dma_chan *chan, void *slave)
{
struct sh_dmae_slave *param = slave;
- dev_dbg(chan->device->dev, "%s: slave ID %d\n", __func__,
- param->shdma_slave.slave_id);
+ dev_dbg(chan->device->dev, "%s: slave ID %d\n",
+ __func__, param->shdma_slave.slave_id);
chan->private = &param->shdma_slave;
return true;
@@ -1614,7 +1616,7 @@ static void rx_timer_fn(unsigned long arg)
u16 scr = serial_port_in(port, SCSCR);
if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) {
- scr &= ~0x4000;
+ scr &= ~SCSCR_RDRQE;
enable_irq(s->irqs[SCIx_RXI_IRQ]);
}
serial_port_out(port, SCSCR, scr | SCSCR_RIE);
@@ -1630,8 +1632,7 @@ static void sci_request_dma(struct uart_port *port)
dma_cap_mask_t mask;
int nent;
- dev_dbg(port->dev, "%s: port %d\n", __func__,
- port->line);
+ dev_dbg(port->dev, "%s: port %d\n", __func__, port->line);
if (s->cfg->dma_slave_tx <= 0 || s->cfg->dma_slave_rx <= 0)
return;
@@ -1659,7 +1660,8 @@ static void sci_request_dma(struct uart_port *port)
if (!nent)
sci_tx_dma_release(s, false);
else
- dev_dbg(port->dev, "%s: mapped %d@%p to %pad\n", __func__,
+ dev_dbg(port->dev, "%s: mapped %d@%p to %pad\n",
+ __func__,
sg_dma_len(&s->sg_tx), port->state->xmit.buf,
&sg_dma_address(&s->sg_tx));
@@ -1871,13 +1873,13 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
smr_val = serial_port_in(port, SCSMR) & 3;
if ((termios->c_cflag & CSIZE) == CS7)
- smr_val |= 0x40;
+ smr_val |= SCSMR_CHR;
if (termios->c_cflag & PARENB)
- smr_val |= 0x20;
+ smr_val |= SCSMR_PE;
if (termios->c_cflag & PARODD)
- smr_val |= 0x30;
+ smr_val |= SCSMR_PE | SCSMR_ODD;
if (termios->c_cflag & CSTOPB)
- smr_val |= 0x08;
+ smr_val |= SCSMR_STOP;
uart_update_timeout(port, termios->c_cflag, baud);
@@ -1885,7 +1887,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
__func__, smr_val, cks, t, s->cfg->scscr);
if (t >= 0) {
- serial_port_out(port, SCSMR, (smr_val & ~3) | cks);
+ serial_port_out(port, SCSMR, (smr_val & ~SCSMR_CKS) | cks);
serial_port_out(port, SCBRR, t);
reg = sci_getreg(port, HSSRR);
if (reg->size)
@@ -1933,8 +1935,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
if (s->chan_rx) {
s->rx_timeout = (port->timeout - HZ / 50) * s->buf_len_rx * 3 /
port->fifosize / 2;
- dev_dbg(port->dev,
- "DMA Rx t-out %ums, tty t-out %u jiffies\n",
+ dev_dbg(port->dev, "DMA Rx t-out %ums, tty t-out %u jiffies\n",
s->rx_timeout * 1000 / HZ, port->timeout);
if (s->rx_timeout < msecs_to_jiffies(20))
s->rx_timeout = msecs_to_jiffies(20);
@@ -1953,7 +1954,7 @@ static void sci_pm(struct uart_port *port, unsigned int state,
struct sci_port *sci_port = to_sci_port(port);
switch (state) {
- case 3:
+ case UART_PM_STATE_OFF:
sci_port_disable(sci_port);
break;
default:
@@ -2018,7 +2019,7 @@ static int sci_remap_port(struct uart_port *port)
* need to do any remapping, just cast the cookie
* directly.
*/
- port->membase = (void __iomem *)port->mapbase;
+ port->membase = (void __iomem *)(uintptr_t)port->mapbase;
}
return 0;
@@ -2389,8 +2390,7 @@ static inline int sci_probe_earlyprintk(struct platform_device *pdev)
#endif /* CONFIG_SERIAL_SH_SCI_CONSOLE */
-static char banner[] __initdata =
- KERN_INFO "SuperH (H)SCI(F) driver initialized\n";
+static const char banner[] __initconst = "SuperH (H)SCI(F) driver initialized";
static struct uart_driver sci_uart_driver = {
.owner = THIS_MODULE,
@@ -2424,25 +2424,25 @@ struct sci_port_info {
static const struct of_device_id of_sci_match[] = {
{
.compatible = "renesas,scif",
- .data = (void *)&(const struct sci_port_info) {
+ .data = &(const struct sci_port_info) {
.type = PORT_SCIF,
.regtype = SCIx_SH4_SCIF_REGTYPE,
},
}, {
.compatible = "renesas,scifa",
- .data = (void *)&(const struct sci_port_info) {
+ .data = &(const struct sci_port_info) {
.type = PORT_SCIFA,
.regtype = SCIx_SCIFA_REGTYPE,
},
}, {
.compatible = "renesas,scifb",
- .data = (void *)&(const struct sci_port_info) {
+ .data = &(const struct sci_port_info) {
.type = PORT_SCIFB,
.regtype = SCIx_SCIFB_REGTYPE,
},
}, {
.compatible = "renesas,hscif",
- .data = (void *)&(const struct sci_port_info) {
+ .data = &(const struct sci_port_info) {
.type = PORT_HSCIF,
.regtype = SCIx_HSCIF_REGTYPE,
},
@@ -2502,11 +2502,9 @@ static int sci_probe_single(struct platform_device *dev,
/* Sanity check */
if (unlikely(index >= SCI_NPORTS)) {
- dev_notice(&dev->dev, "Attempting to register port "
- "%d when only %d are available.\n",
+ dev_notice(&dev->dev, "Attempting to register port %d when only %d are available\n",
index+1, SCI_NPORTS);
- dev_notice(&dev->dev, "Consider bumping "
- "CONFIG_SERIAL_SH_SCI_NR_UARTS!\n");
+ dev_notice(&dev->dev, "Consider bumping CONFIG_SERIAL_SH_SCI_NR_UARTS!\n");
return -EINVAL;
}
@@ -2564,6 +2562,7 @@ static int sci_probe(struct platform_device *dev)
ret = cpufreq_register_notifier(&sp->freq_transition,
CPUFREQ_TRANSITION_NOTIFIER);
if (unlikely(ret < 0)) {
+ uart_remove_one_port(&sci_uart_driver, &sp->port);
sci_cleanup_single(sp);
return ret;
}
@@ -2615,7 +2614,7 @@ static int __init sci_init(void)
{
int ret;
- printk(banner);
+ pr_info("%s\n", banner);
ret = uart_register_driver(&sci_uart_driver);
if (likely(ret == 0)) {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.