Merge tag 'tty-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Merge commit. Changes below are compared with the first parent: fac33bfd.
Changes
3 files changed · +125 −396
| File | Status | Add | Del | Content |
|---|---|---|---|---|
| drivers/tty/serial/Kconfig | modified | +2 | −2 | View file |
| drivers/tty/serial/amba-pl011.c | modified | +123 | −380 | View file |
| include/linux/amba/serial.h | modified | +0 | −14 | View file |
Only the first 600 diff lines are shown. Download the complete patch.
drivers/tty/serial/Kconfig
View filediff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index ed299b9..687b1ea 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -47,12 +47,12 @@ config SERIAL_AMBA_PL010_CONSOLE
config SERIAL_AMBA_PL011
tristate "ARM AMBA PL011 serial port support"
- depends on ARM_AMBA || SOC_ZX296702
+ depends on ARM_AMBA
select SERIAL_CORE
help
This selects the ARM(R) AMBA(R) PrimeCell PL011 UART. If you have
an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M
- here. Say Y or M if you have SOC_ZX296702.
+ here.
If unsure, say N.
drivers/tty/serial/amba-pl011.c
View filediff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 2af09ab..fd27e98 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -74,13 +74,8 @@
/* There is by now at least one vendor with differing details, so handle it */
struct vendor_data {
unsigned int ifls;
- unsigned int fr_busy;
- unsigned int fr_dsr;
- unsigned int fr_cts;
- unsigned int fr_ri;
unsigned int lcrh_tx;
unsigned int lcrh_rx;
- u16 *reg_lut;
bool oversampling;
bool dma_threshold;
bool cts_event_workaround;
@@ -90,48 +85,6 @@ struct vendor_data {
unsigned int (*get_fifosize)(struct amba_device *dev);
};
-/* Max address offset of register in use is 0x48 */
-#define REG_NR (0x48 >> 2)
-#define IDX(x) (x >> 2)
-enum reg_idx {
- REG_DR = IDX(UART01x_DR),
- REG_RSR = IDX(UART01x_RSR),
- REG_ST_DMAWM = IDX(ST_UART011_DMAWM),
- REG_FR = IDX(UART01x_FR),
- REG_ST_LCRH_RX = IDX(ST_UART011_LCRH_RX),
- REG_ILPR = IDX(UART01x_ILPR),
- REG_IBRD = IDX(UART011_IBRD),
- REG_FBRD = IDX(UART011_FBRD),
- REG_LCRH = IDX(UART011_LCRH),
- REG_CR = IDX(UART011_CR),
- REG_IFLS = IDX(UART011_IFLS),
- REG_IMSC = IDX(UART011_IMSC),
- REG_RIS = IDX(UART011_RIS),
- REG_MIS = IDX(UART011_MIS),
- REG_ICR = IDX(UART011_ICR),
- REG_DMACR = IDX(UART011_DMACR),
-};
-
-static u16 arm_reg[] = {
- [REG_DR] = UART01x_DR,
- [REG_RSR] = UART01x_RSR,
- [REG_ST_DMAWM] = ~0,
- [REG_FR] = UART01x_FR,
- [REG_ST_LCRH_RX] = ~0,
- [REG_ILPR] = UART01x_ILPR,
- [REG_IBRD] = UART011_IBRD,
- [REG_FBRD] = UART011_FBRD,
- [REG_LCRH] = UART011_LCRH,
- [REG_CR] = UART011_CR,
- [REG_IFLS] = UART011_IFLS,
- [REG_IMSC] = UART011_IMSC,
- [REG_RIS] = UART011_RIS,
- [REG_MIS] = UART011_MIS,
- [REG_ICR] = UART011_ICR,
- [REG_DMACR] = UART011_DMACR,
-};
-
-#ifdef CONFIG_ARM_AMBA
static unsigned int get_fifosize_arm(struct amba_device *dev)
{
return amba_rev(dev) < 3 ? 16 : 32;
@@ -139,13 +92,8 @@ static unsigned int get_fifosize_arm(struct amba_device *dev)
static struct vendor_data vendor_arm = {
.ifls = UART011_IFLS_RX4_8|UART011_IFLS_TX4_8,
- .fr_busy = UART01x_FR_BUSY,
- .fr_dsr = UART01x_FR_DSR,
- .fr_cts = UART01x_FR_CTS,
- .fr_ri = UART011_FR_RI,
- .lcrh_tx = REG_LCRH,
- .lcrh_rx = REG_LCRH,
- .reg_lut = arm_reg,
+ .lcrh_tx = UART011_LCRH,
+ .lcrh_rx = UART011_LCRH,
.oversampling = false,
.dma_threshold = false,
.cts_event_workaround = false,
@@ -153,14 +101,8 @@ static struct vendor_data vendor_arm = {
.fixed_options = false,
.get_fifosize = get_fifosize_arm,
};
-#endif
static struct vendor_data vendor_sbsa = {
- .fr_busy = UART01x_FR_BUSY,
- .fr_dsr = UART01x_FR_DSR,
- .fr_cts = UART01x_FR_CTS,
- .fr_ri = UART011_FR_RI,
- .reg_lut = arm_reg,
.oversampling = false,
.dma_threshold = false,
.cts_event_workaround = false,
@@ -168,26 +110,6 @@ static struct vendor_data vendor_sbsa = {
.fixed_options = true,
};
-#ifdef CONFIG_ARM_AMBA
-static u16 st_reg[] = {
- [REG_DR] = UART01x_DR,
- [REG_RSR] = UART01x_RSR,
- [REG_ST_DMAWM] = ST_UART011_DMAWM,
- [REG_FR] = UART01x_FR,
- [REG_ST_LCRH_RX] = ST_UART011_LCRH_RX,
- [REG_ILPR] = UART01x_ILPR,
- [REG_IBRD] = UART011_IBRD,
- [REG_FBRD] = UART011_FBRD,
- [REG_LCRH] = UART011_LCRH,
- [REG_CR] = UART011_CR,
- [REG_IFLS] = UART011_IFLS,
- [REG_IMSC] = UART011_IMSC,
- [REG_RIS] = UART011_RIS,
- [REG_MIS] = UART011_MIS,
- [REG_ICR] = UART011_ICR,
- [REG_DMACR] = UART011_DMACR,
-};
-
static unsigned int get_fifosize_st(struct amba_device *dev)
{
return 64;
@@ -195,13 +117,8 @@ static unsigned int get_fifosize_st(struct amba_device *dev)
static struct vendor_data vendor_st = {
.ifls = UART011_IFLS_RX_HALF|UART011_IFLS_TX_HALF,
- .fr_busy = UART01x_FR_BUSY,
- .fr_dsr = UART01x_FR_DSR,
- .fr_cts = UART01x_FR_CTS,
- .fr_ri = UART011_FR_RI,
- .lcrh_tx = REG_LCRH,
- .lcrh_rx = REG_ST_LCRH_RX,
- .reg_lut = st_reg,
+ .lcrh_tx = ST_UART011_LCRH_TX,
+ .lcrh_rx = ST_UART011_LCRH_RX,
.oversampling = true,
.dma_threshold = true,
.cts_event_workaround = true,
@@ -209,43 +126,6 @@ static struct vendor_data vendor_st = {
.fixed_options = false,
.get_fifosize = get_fifosize_st,
};
-#endif
-
-#ifdef CONFIG_SOC_ZX296702
-static u16 zte_reg[] = {
- [REG_DR] = ZX_UART01x_DR,
- [REG_RSR] = UART01x_RSR,
- [REG_ST_DMAWM] = ST_UART011_DMAWM,
- [REG_FR] = ZX_UART01x_FR,
- [REG_ST_LCRH_RX] = ST_UART011_LCRH_RX,
- [REG_ILPR] = UART01x_ILPR,
- [REG_IBRD] = UART011_IBRD,
- [REG_FBRD] = UART011_FBRD,
- [REG_LCRH] = ZX_UART011_LCRH_TX,
- [REG_CR] = ZX_UART011_CR,
- [REG_IFLS] = ZX_UART011_IFLS,
- [REG_IMSC] = ZX_UART011_IMSC,
- [REG_RIS] = ZX_UART011_RIS,
- [REG_MIS] = ZX_UART011_MIS,
- [REG_ICR] = ZX_UART011_ICR,
- [REG_DMACR] = ZX_UART011_DMACR,
-};
-
-static struct vendor_data vendor_zte = {
- .ifls = UART011_IFLS_RX4_8|UART011_IFLS_TX4_8,
- .fr_busy = ZX_UART01x_FR_BUSY,
- .fr_dsr = ZX_UART01x_FR_DSR,
- .fr_cts = ZX_UART01x_FR_CTS,
- .fr_ri = ZX_UART011_FR_RI,
- .lcrh_tx = REG_LCRH,
- .lcrh_rx = REG_ST_LCRH_RX,
- .reg_lut = zte_reg,
- .oversampling = false,
- .dma_threshold = false,
- .cts_event_workaround = false,
- .fixed_options = false,
-};
-#endif
/* Deals with DMA transactions */
@@ -284,15 +164,10 @@ struct uart_amba_port {
struct uart_port port;
struct clk *clk;
const struct vendor_data *vendor;
- u16 *reg_lut;
unsigned int dmacr; /* dma control reg */
unsigned int im; /* interrupt mask */
unsigned int old_status;
unsigned int fifosize; /* vendor-specific */
- unsigned int fr_busy; /* vendor-specific */
- unsigned int fr_dsr; /* vendor-specific */
- unsigned int fr_cts; /* vendor-specific */
- unsigned int fr_ri; /* vendor-specific */
unsigned int lcrh_tx; /* vendor-specific */
unsigned int lcrh_rx; /* vendor-specific */
unsigned int old_cr; /* state during shutdown */
@@ -309,29 +184,6 @@ struct uart_amba_port {
#endif
};
-static bool is_implemented(struct uart_amba_port *uap, unsigned int reg)
-{
- return uap->reg_lut[reg] != (u16)~0;
-}
-
-static unsigned int pl011_readw(struct uart_amba_port *uap, int index)
-{
- WARN_ON(index > REG_NR);
- return readw_relaxed(uap->port.membase + uap->reg_lut[index]);
-}
-
-static void pl011_writew(struct uart_amba_port *uap, int val, int index)
-{
- WARN_ON(index > REG_NR);
- writew_relaxed(val, uap->port.membase + uap->reg_lut[index]);
-}
-
-static void pl011_writeb(struct uart_amba_port *uap, u8 val, int index)
-{
- WARN_ON(index > REG_NR);
- writeb_relaxed(val, uap->port.membase + uap->reg_lut[index]);
-}
-
/*
* Reads up to 256 characters from the FIFO or until it's empty and
* inserts them into the TTY layer. Returns the number of characters
@@ -344,12 +196,12 @@ static int pl011_fifo_to_tty(struct uart_amba_port *uap)
int fifotaken = 0;
while (max_count--) {
- status = pl011_readw(uap, REG_FR);
+ status = readw(uap->port.membase + UART01x_FR);
if (status & UART01x_FR_RXFE)
break;
/* Take chars from the FIFO and update status */
- ch = pl011_readw(uap, REG_DR) |
+ ch = readw(uap->port.membase + UART01x_DR) |
UART_DUMMY_DR_RX;
flag = TTY_NORMAL;
uap->port.icount.rx++;
@@ -432,7 +284,7 @@ static void pl011_dma_probe(struct uart_amba_port *uap)
struct amba_pl011_data *plat = dev_get_platdata(uap->port.dev);
struct device *dev = uap->port.dev;
struct dma_slave_config tx_conf = {
- .dst_addr = uap->port.mapbase + uap->reg_lut[REG_DR],
+ .dst_addr = uap->port.mapbase + UART01x_DR,
.dst_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE,
.direction = DMA_MEM_TO_DEV,
.dst_maxburst = uap->fifosize >> 1,
@@ -487,7 +339,7 @@ static void pl011_dma_probe(struct uart_amba_port *uap)
if (chan) {
struct dma_slave_config rx_conf = {
- .src_addr = uap->port.mapbase + uap->reg_lut[REG_DR],
+ .src_addr = uap->port.mapbase + UART01x_DR,
.src_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE,
.direction = DMA_DEV_TO_MEM,
.src_maxburst = uap->fifosize >> 2,
@@ -586,7 +438,7 @@ static void pl011_dma_tx_callback(void *data)
dmacr = uap->dmacr;
uap->dmacr = dmacr & ~UART011_TXDMAE;
- pl011_writew(uap, uap->dmacr, REG_DMACR);
+ writew(uap->dmacr, uap->port.membase + UART011_DMACR);
/*
* If TX DMA was disabled, it means that we've stopped the DMA for
@@ -700,7 +552,7 @@ static int pl011_dma_tx_refill(struct uart_amba_port *uap)
dma_dev->device_issue_pending(chan);
uap->dmacr |= UART011_TXDMAE;
- pl011_writew(uap, uap->dmacr, REG_DMACR);
+ writew(uap->dmacr, uap->port.membase + UART011_DMACR);
uap->dmatx.queued = true;
/*
@@ -736,9 +588,9 @@ static bool pl011_dma_tx_irq(struct uart_amba_port *uap)
*/
if (uap->dmatx.queued) {
uap->dmacr |= UART011_TXDMAE;
- pl011_writew(uap, uap->dmacr, REG_DMACR);
+ writew(uap->dmacr, uap->port.membase + UART011_DMACR);
uap->im &= ~UART011_TXIM;
- pl011_writew(uap, uap->im, REG_IMSC);
+ writew(uap->im, uap->port.membase + UART011_IMSC);
return true;
}
@@ -748,7 +600,7 @@ static bool pl011_dma_tx_irq(struct uart_amba_port *uap)
*/
if (pl011_dma_tx_refill(uap) > 0) {
uap->im &= ~UART011_TXIM;
- pl011_writew(uap, uap->im, REG_IMSC);
+ writew(uap->im, uap->port.membase + UART011_IMSC);
return true;
}
return false;
@@ -762,7 +614,7 @@ static inline void pl011_dma_tx_stop(struct uart_amba_port *uap)
{
if (uap->dmatx.queued) {
uap->dmacr &= ~UART011_TXDMAE;
- pl011_writew(uap, uap->dmacr, REG_DMACR);
+ writew(uap->dmacr, uap->port.membase + UART011_DMACR);
}
}
@@ -788,12 +640,14 @@ static inline bool pl011_dma_tx_start(struct uart_amba_port *uap)
if (!uap->dmatx.queued) {
if (pl011_dma_tx_refill(uap) > 0) {
uap->im &= ~UART011_TXIM;
- pl011_writew(uap, uap->im, REG_IMSC);
+ writew(uap->im, uap->port.membase +
+ UART011_IMSC);
} else
ret = false;
} else if (!(uap->dmacr & UART011_TXDMAE)) {
uap->dmacr |= UART011_TXDMAE;
- pl011_writew(uap, uap->dmacr, REG_DMACR);
+ writew(uap->dmacr,
+ uap->port.membase + UART011_DMACR);
}
return ret;
}
@@ -804,9 +658,9 @@ static inline bool pl011_dma_tx_start(struct uart_amba_port *uap)
*/
dmacr = uap->dmacr;
uap->dmacr &= ~UART011_TXDMAE;
- pl011_writew(uap, uap->dmacr, REG_DMACR);
+ writew(uap->dmacr, uap->port.membase + UART011_DMACR);
- if (pl011_readw(uap, REG_FR) & UART01x_FR_TXFF) {
+ if (readw(uap->port.membase + UART01x_FR) & UART01x_FR_TXFF) {
/*
* No space in the FIFO, so enable the transmit interrupt
* so we know when there is space. Note that once we've
@@ -815,13 +669,13 @@ static inline bool pl011_dma_tx_start(struct uart_amba_port *uap)
return false;
}
- pl011_writew(uap, uap->port.x_char, REG_DR);
+ writew(uap->port.x_char, uap->port.membase + UART01x_DR);
uap->port.icount.tx++;
uap->port.x_char = 0;
/* Success - restore the DMA state */
uap->dmacr = dmacr;
- pl011_writew(uap, dmacr, REG_DMACR);
+ writew(dmacr, uap->port.membase + UART011_DMACR);
return true;
}
@@ -849,7 +703,7 @@ __acquires(&uap->port.lock)
DMA_TO_DEVICE);
uap->dmatx.queued = false;
uap->dmacr &= ~UART011_TXDMAE;
- pl011_writew(uap, uap->dmacr, REG_DMACR);
+ writew(uap->dmacr, uap->port.membase + UART011_DMACR);
}
}
@@ -889,11 +743,11 @@ static int pl011_dma_rx_trigger_dma(struct uart_amba_port *uap)
dma_async_issue_pending(rxchan);
uap->dmacr |= UART011_RXDMAE;
- pl011_writew(uap, uap->dmacr, REG_DMACR);
+ writew(uap->dmacr, uap->port.membase + UART011_DMACR);
uap->dmarx.running = true;
uap->im &= ~UART011_RXIM;
- pl011_writew(uap, uap->im, REG_IMSC);
+ writew(uap->im, uap->port.membase + UART011_IMSC);
return 0;
}
@@ -951,9 +805,8 @@ static void pl011_dma_rx_chars(struct uart_amba_port *uap,
*/
if (dma_count == pending && readfifo) {
/* Clear any error flags */
- pl011_writew(uap,
- UART011_OEIS | UART011_BEIS | UART011_PEIS
- | UART011_FEIS, REG_ICR);
+ writew(UART011_OEIS | UART011_BEIS | UART011_PEIS | UART011_FEIS,
+ uap->port.membase + UART011_ICR);
/*
* If we read all the DMA'd characters, and we had an
@@ -1001,7 +854,7 @@ static void pl011_dma_rx_irq(struct uart_amba_port *uap)
/* Disable RX DMA - incoming data will wait in the FIFO */
uap->dmacr &= ~UART011_RXDMAE;
- pl011_writew(uap, uap->dmacr, REG_DMACR);
+ writew(uap->dmacr, uap->port.membase + UART011_DMACR);
uap->dmarx.running = false;
pending = sgbuf->sg.length - state.residue;
@@ -1021,7 +874,7 @@ static void pl011_dma_rx_irq(struct uart_amba_port *uap)
dev_dbg(uap->port.dev, "could not retrigger RX DMA job "
"fall back to interrupt mode\n");
uap->im |= UART011_RXIM;
- pl011_writew(uap, uap->im, REG_IMSC);
+ writew(uap->im, uap->port.membase + UART011_IMSC);
}
}
@@ -1069,7 +922,7 @@ static void pl011_dma_rx_callback(void *data)
dev_dbg(uap->port.dev, "could not retrigger RX DMA job "
"fall back to interrupt mode\n");
uap->im |= UART011_RXIM;
- pl011_writew(uap, uap->im, REG_IMSC);
+ writew(uap->im, uap->port.membase + UART011_IMSC);
}
}
@@ -1082,7 +935,7 @@ static inline void pl011_dma_rx_stop(struct uart_amba_port *uap)
{
/* FIXME. Just disable the DMA enable */
uap->dmacr &= ~UART011_RXDMAE;
- pl011_writew(uap, uap->dmacr, REG_DMACR);
+ writew(uap->dmacr, uap->port.membase + UART011_DMACR);
}
/*
@@ -1126,7 +979,7 @@ static void pl011_dma_rx_poll(unsigned long args)
spin_lock_irqsave(&uap->port.lock, flags);
pl011_dma_rx_stop(uap);
uap->im |= UART011_RXIM;
- pl011_writew(uap, uap->im, REG_IMSC);
+ writew(uap->im, uap->port.membase + UART011_IMSC);
spin_unlock_irqrestore(&uap->port.lock, flags);
uap->dmarx.running = false;
@@ -1188,7 +1041,7 @@ static void pl011_dma_startup(struct uart_amba_port *uap)
skip_rx:
/* Turn on DMA error (RX/TX will be enabled on demand) */
uap->dmacr |= UART011_DMAONERR;
- pl011_writew(uap, uap->dmacr, REG_DMACR);
+ writew(uap->dmacr, uap->port.membase + UART011_DMACR);
/*
* ST Micro variants has some specific dma burst threshold
@@ -1196,9 +1049,8 @@ skip_rx:
* be issued above/below 16 bytes.
*/
if (uap->vendor->dma_threshold)
- pl011_writew(uap,
- ST_UART011_DMAWM_RX_16 | ST_UART011_DMAWM_TX_16,
- REG_ST_DMAWM);
+ writew(ST_UART011_DMAWM_RX_16 | ST_UART011_DMAWM_TX_16,
+ uap->port.membase + ST_UART011_DMAWM);
if (uap->using_rx_dma) {
if (pl011_dma_rx_trigger_dma(uap))
@@ -1223,12 +1075,12 @@ static void pl011_dma_shutdown(struct uart_amba_port *uap)
return;
/* Disable RX and TX DMA */
- while (pl011_readw(uap, REG_FR) & uap->fr_busy)
+ while (readw(uap->port.membase + UART01x_FR) & UART01x_FR_BUSY)
barrier();
spin_lock_irq(&uap->port.lock);
uap->dmacr &= ~(UART011_DMAONERR | UART011_RXDMAE | UART011_TXDMAE);
- pl011_writew(uap, uap->dmacr, REG_DMACR);
+ writew(uap->dmacr, uap->port.membase + UART011_DMACR);
spin_unlock_irq(&uap->port.lock);
if (uap->using_tx_dma) {
@@ -1329,7 +1181,7 @@ static void pl011_stop_tx(struct uart_port *port)
container_of(port, struct uart_amba_port, port);
uap->im &= ~UART011_TXIM;
- pl011_writew(uap, uap->im, REG_IMSC);
+ writew(uap->im, uap->port.membase + UART011_IMSC);
pl011_dma_tx_stop(uap);
}
@@ -1339,7 +1191,7 @@ static void pl011_tx_chars(struct uart_amba_port *uap, bool from_irq);
static void pl011_start_tx_pio(struct uart_amba_port *uap)
{
uap->im |= UART011_TXIM;
- pl011_writew(uap, uap->im, REG_IMSC);
+ writew(uap->im, uap->port.membase + UART011_IMSC);
pl011_tx_chars(uap, false);
}
@@ -1359,7 +1211,7 @@ static void pl011_stop_rx(struct uart_port *port)
uap->im &= ~(UART011_RXIM|UART011_RTIM|UART011_FEIM|
UART011_PEIM|UART011_BEIM|UART011_OEIM);
- pl011_writew(uap, uap->im, REG_IMSC);
+ writew(uap->im, uap->port.membase + UART011_IMSC);
pl011_dma_rx_stop(uap);
}
@@ -1370,7 +1222,7 @@ static void pl011_enable_ms(struct uart_port *port)
container_of(port, struct uart_amba_port, port);
uap->im |= UART011_RIMIM|UART011_CTSMIM|UART011_DCDMIM|UART011_DSRMIM;
- pl011_writew(uap, uap->im, REG_IMSC);
+ writew(uap->im, uap->port.membase + UART011_IMSC);
}
static void pl011_rx_chars(struct uart_amba_port *uap)
@@ -1390,7 +1242,7 @@ __acquires(&uap->port.lock)
dev_dbg(uap->port.dev, "could not trigger RX DMA job "
"fall back to interrupt mode again\n");
uap->im |= UART011_RXIM;
- pl011_writew(uap, uap->im, REG_IMSC);
+ writew(uap->im, uap->port.membase + UART011_IMSC);
} else {
#ifdef CONFIG_DMA_ENGINE
/* Start Rx DMA poll */
@@ -1411,10 +1263,10 @@ static bool pl011_tx_char(struct uart_amba_port *uap, unsigned char c,
bool from_irq)
{
if (unlikely(!from_irq) &&
- pl011_readw(uap, REG_FR) & UART01x_FR_TXFF)
+ readw(uap->port.membase + UART01x_FR) & UART01x_FR_TXFF)
return false; /* unable to transmit character */
- pl011_writew(uap, c, REG_DR);
+ writew(c, uap->port.membase + UART01x_DR);
uap->port.icount.tx++;
return true;
@@ -1461,7 +1313,7 @@ static void pl011_modem_status(struct uart_amba_port *uap)
{
unsigned int status, delta;
- status = pl011_readw(uap, REG_FR) & UART01x_FR_MODEM_ANY;
+ status = readw(uap->port.membase + UART01x_FR) & UART01x_FR_MODEM_ANY;
delta = status ^ uap->old_status;
uap->old_status = status;
@@ -1472,11 +1324,11 @@ static void pl011_modem_status(struct uart_amba_port *uap)
if (delta & UART01x_FR_DCD)
uart_handle_dcd_change(&uap->port, status & UART01x_FR_DCD);
- if (delta & uap->fr_dsr)
+ if (delta & UART01x_FR_DSR)
uap->port.icount.dsr++;
- if (delta & uap->fr_cts)
- uart_handle_cts_change(&uap->port, status & uap->fr_cts);
+ if (delta & UART01x_FR_CTS)
+ uart_handle_cts_change(&uap->port, status & UART01x_FR_CTS);
wake_up_interruptible(&uap->port.state->port.delta_msr_wait);
}
@@ -1489,15 +1341,15 @@ static void check_apply_cts_event_workaround(struct uart_amba_port *uap)
return;
/* workaround to make sure that all bits are unlocked.. */
- pl011_writew(uap, 0x00, REG_ICR);
+ writew(0x00, uap->port.membase + UART011_ICR);
/*
* WA: introduce 26ns(1 uart clk) delay before W1C;
* single apb access will incur 2 pclk(133.12Mhz) delay,
* so add 2 dummy reads
*/
- dummy_read = pl011_readw(uap, REG_ICR);
- dummy_read = pl011_readw(uap, REG_ICR);
+ dummy_read = readw(uap->port.membase + UART011_ICR);
+ dummy_read = readw(uap->port.membase + UART011_ICR);
}
static irqreturn_t pl011_int(int irq, void *dev_id)
@@ -1509,13 +1361,15 @@ static irqreturn_t pl011_int(int irq, void *dev_id)
int handled = 0;
spin_lock_irqsave(&uap->port.lock, flags);
- imsc = pl011_readw(uap, REG_IMSC);
- status = pl011_readw(uap, REG_RIS) & imsc;
+ imsc = readw(uap->port.membase + UART011_IMSC);
This diff is incomplete. Download the complete patch.
include/linux/amba/serial.h
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