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-rw-r--r--Documentation/devicetree/bindings/serial/renesas,scif.yaml5
-rw-r--r--drivers/parport/parport_serial.c12
-rw-r--r--drivers/tty/serial/8250/8250_pci.c76
-rw-r--r--drivers/tty/serial/8250/8250_port.c2
-rw-r--r--drivers/tty/serial/altera_jtaguart.c10
-rw-r--r--drivers/tty/serial/altera_uart.c7
-rw-r--r--drivers/tty/serial/mpc52xx_uart.c2
-rw-r--r--drivers/tty/serial/serial_core.c261
-rw-r--r--drivers/tty/serial/sh-sci.c2
-rw-r--r--drivers/tty/tty_io.c2
-rw-r--r--include/linux/pci_ids.h11
11 files changed, 184 insertions, 206 deletions
diff --git a/Documentation/devicetree/bindings/serial/renesas,scif.yaml b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
index 51d9fb0f4763..8e82999e6acb 100644
--- a/Documentation/devicetree/bindings/serial/renesas,scif.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
@@ -83,6 +83,11 @@ properties:
- const: renesas,scif-r9a09g057 # RZ/V2H(P)
+ - items:
+ - enum:
+ - renesas,scif-r9a09g047 # RZ/G3E
+ - const: renesas,scif-r9a09g057 # RZ/V2H fallback
+
reg:
maxItems: 1
diff --git a/drivers/parport/parport_serial.c b/drivers/parport/parport_serial.c
index 3644997a8342..24d4f3a3ec3d 100644
--- a/drivers/parport/parport_serial.c
+++ b/drivers/parport/parport_serial.c
@@ -266,10 +266,14 @@ static struct pci_device_id parport_serial_pci_tbl[] = {
{ 0x1409, 0x7168, 0x1409, 0xd079, 0, 0, timedia_9079c },
/* WCH CARDS */
- { 0x4348, 0x5053, PCI_ANY_ID, PCI_ANY_ID, 0, 0, wch_ch353_1s1p},
- { 0x4348, 0x7053, 0x4348, 0x3253, 0, 0, wch_ch353_2s1p},
- { 0x1c00, 0x3050, 0x1c00, 0x3050, 0, 0, wch_ch382_0s1p},
- { 0x1c00, 0x3250, 0x1c00, 0x3250, 0, 0, wch_ch382_2s1p},
+ { PCI_VENDOR_ID_WCHCN, PCI_DEVICE_ID_WCHCN_CH353_1S1P,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, wch_ch353_1s1p },
+ { PCI_VENDOR_ID_WCHCN, PCI_DEVICE_ID_WCHCN_CH353_2S1P,
+ 0x4348, 0x3253, 0, 0, wch_ch353_2s1p },
+ { PCI_VENDOR_ID_WCHIC, PCI_DEVICE_ID_WCHIC_CH382_0S1P,
+ 0x1c00, 0x3050, 0, 0, wch_ch382_0s1p },
+ { PCI_VENDOR_ID_WCHIC, PCI_DEVICE_ID_WCHIC_CH382_2S1P,
+ 0x1c00, 0x3250, 0, 0, wch_ch382_2s1p },
/* BrainBoxes PX272/PX306 MIO card */
{ PCI_VENDOR_ID_INTASHIELD, 0x4100,
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 3c3f7c926afb..df4d0d832e54 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -64,23 +64,17 @@
#define PCIE_DEVICE_ID_NEO_2_OX_IBM 0x00F6
#define PCI_DEVICE_ID_PLX_CRONYX_OMEGA 0xc001
#define PCI_DEVICE_ID_INTEL_PATSBURG_KT 0x1d3d
-#define PCI_VENDOR_ID_WCH 0x4348
-#define PCI_DEVICE_ID_WCH_CH352_2S 0x3253
-#define PCI_DEVICE_ID_WCH_CH353_4S 0x3453
-#define PCI_DEVICE_ID_WCH_CH353_2S1PF 0x5046
-#define PCI_DEVICE_ID_WCH_CH353_1S1P 0x5053
-#define PCI_DEVICE_ID_WCH_CH353_2S1P 0x7053
-#define PCI_DEVICE_ID_WCH_CH355_4S 0x7173
+
+#define PCI_DEVICE_ID_WCHCN_CH352_2S 0x3253
+#define PCI_DEVICE_ID_WCHCN_CH355_4S 0x7173
+
#define PCI_VENDOR_ID_AGESTAR 0x5372
#define PCI_DEVICE_ID_AGESTAR_9375 0x6872
#define PCI_DEVICE_ID_BROADCOM_TRUMANAGE 0x160a
#define PCI_DEVICE_ID_AMCC_ADDIDATA_APCI7800 0x818e
-#define PCIE_VENDOR_ID_WCH 0x1c00
-#define PCIE_DEVICE_ID_WCH_CH382_2S1P 0x3250
-#define PCIE_DEVICE_ID_WCH_CH384_4S 0x3470
-#define PCIE_DEVICE_ID_WCH_CH384_8S 0x3853
-#define PCIE_DEVICE_ID_WCH_CH382_2S 0x3253
+#define PCI_DEVICE_ID_WCHIC_CH384_4S 0x3470
+#define PCI_DEVICE_ID_WCHIC_CH384_8S 0x3853
#define PCI_DEVICE_ID_MOXA_CP102E 0x1024
#define PCI_DEVICE_ID_MOXA_CP102EL 0x1025
@@ -2817,80 +2811,80 @@ static struct pci_serial_quirk pci_serial_quirks[] = {
},
/* WCH CH353 1S1P card (16550 clone) */
{
- .vendor = PCI_VENDOR_ID_WCH,
- .device = PCI_DEVICE_ID_WCH_CH353_1S1P,
+ .vendor = PCI_VENDOR_ID_WCHCN,
+ .device = PCI_DEVICE_ID_WCHCN_CH353_1S1P,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_wch_ch353_setup,
},
/* WCH CH353 2S1P card (16550 clone) */
{
- .vendor = PCI_VENDOR_ID_WCH,
- .device = PCI_DEVICE_ID_WCH_CH353_2S1P,
+ .vendor = PCI_VENDOR_ID_WCHCN,
+ .device = PCI_DEVICE_ID_WCHCN_CH353_2S1P,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_wch_ch353_setup,
},
/* WCH CH353 4S card (16550 clone) */
{
- .vendor = PCI_VENDOR_ID_WCH,
- .device = PCI_DEVICE_ID_WCH_CH353_4S,
+ .vendor = PCI_VENDOR_ID_WCHCN,
+ .device = PCI_DEVICE_ID_WCHCN_CH353_4S,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_wch_ch353_setup,
},
/* WCH CH353 2S1PF card (16550 clone) */
{
- .vendor = PCI_VENDOR_ID_WCH,
- .device = PCI_DEVICE_ID_WCH_CH353_2S1PF,
+ .vendor = PCI_VENDOR_ID_WCHCN,
+ .device = PCI_DEVICE_ID_WCHCN_CH353_2S1PF,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_wch_ch353_setup,
},
/* WCH CH352 2S card (16550 clone) */
{
- .vendor = PCI_VENDOR_ID_WCH,
- .device = PCI_DEVICE_ID_WCH_CH352_2S,
+ .vendor = PCI_VENDOR_ID_WCHCN,
+ .device = PCI_DEVICE_ID_WCHCN_CH352_2S,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_wch_ch353_setup,
},
/* WCH CH355 4S card (16550 clone) */
{
- .vendor = PCI_VENDOR_ID_WCH,
- .device = PCI_DEVICE_ID_WCH_CH355_4S,
+ .vendor = PCI_VENDOR_ID_WCHCN,
+ .device = PCI_DEVICE_ID_WCHCN_CH355_4S,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_wch_ch355_setup,
},
/* WCH CH382 2S card (16850 clone) */
{
- .vendor = PCIE_VENDOR_ID_WCH,
- .device = PCIE_DEVICE_ID_WCH_CH382_2S,
+ .vendor = PCI_VENDOR_ID_WCHIC,
+ .device = PCI_DEVICE_ID_WCHIC_CH382_2S,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_wch_ch38x_setup,
},
/* WCH CH382 2S1P card (16850 clone) */
{
- .vendor = PCIE_VENDOR_ID_WCH,
- .device = PCIE_DEVICE_ID_WCH_CH382_2S1P,
+ .vendor = PCI_VENDOR_ID_WCHIC,
+ .device = PCI_DEVICE_ID_WCHIC_CH382_2S1P,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_wch_ch38x_setup,
},
/* WCH CH384 4S card (16850 clone) */
{
- .vendor = PCIE_VENDOR_ID_WCH,
- .device = PCIE_DEVICE_ID_WCH_CH384_4S,
+ .vendor = PCI_VENDOR_ID_WCHIC,
+ .device = PCI_DEVICE_ID_WCHIC_CH384_4S,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_wch_ch38x_setup,
},
/* WCH CH384 8S card (16850 clone) */
{
- .vendor = PCIE_VENDOR_ID_WCH,
- .device = PCIE_DEVICE_ID_WCH_CH384_8S,
+ .vendor = PCI_VENDOR_ID_WCHIC,
+ .device = PCI_DEVICE_ID_WCHIC_CH384_8S,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_wch_ch38x_init,
@@ -3967,11 +3961,11 @@ static const struct pci_device_id blacklist[] = {
/* multi-io cards handled by parport_serial */
/* WCH CH353 2S1P */
- { PCI_DEVICE(0x4348, 0x7053), 0, 0, REPORT_CONFIG(PARPORT_SERIAL), },
+ { PCI_VDEVICE(WCHCN, 0x7053), REPORT_CONFIG(PARPORT_SERIAL), },
/* WCH CH353 1S1P */
- { PCI_DEVICE(0x4348, 0x5053), 0, 0, REPORT_CONFIG(PARPORT_SERIAL), },
+ { PCI_VDEVICE(WCHCN, 0x5053), REPORT_CONFIG(PARPORT_SERIAL), },
/* WCH CH382 2S1P */
- { PCI_DEVICE(0x1c00, 0x3250), 0, 0, REPORT_CONFIG(PARPORT_SERIAL), },
+ { PCI_VDEVICE(WCHIC, 0x3250), REPORT_CONFIG(PARPORT_SERIAL), },
/* Intel platforms with MID UART */
{ PCI_VDEVICE(INTEL, 0x081b), REPORT_8250_CONFIG(MID), },
@@ -6044,27 +6038,27 @@ static const struct pci_device_id serial_pci_tbl[] = {
* WCH CH353 series devices: The 2S1P is handled by parport_serial
* so not listed here.
*/
- { PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH353_4S,
+ { PCI_VENDOR_ID_WCHCN, PCI_DEVICE_ID_WCHCN_CH353_4S,
PCI_ANY_ID, PCI_ANY_ID,
0, 0, pbn_b0_bt_4_115200 },
- { PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH353_2S1PF,
+ { PCI_VENDOR_ID_WCHCN, PCI_DEVICE_ID_WCHCN_CH353_2S1PF,
PCI_ANY_ID, PCI_ANY_ID,
0, 0, pbn_b0_bt_2_115200 },
- { PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH355_4S,
+ { PCI_VENDOR_ID_WCHCN, PCI_DEVICE_ID_WCHCN_CH355_4S,
PCI_ANY_ID, PCI_ANY_ID,
0, 0, pbn_b0_bt_4_115200 },
- { PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH382_2S,
+ { PCI_VENDOR_ID_WCHIC, PCI_DEVICE_ID_WCHIC_CH382_2S,
PCI_ANY_ID, PCI_ANY_ID,
0, 0, pbn_wch382_2 },
- { PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH384_4S,
+ { PCI_VENDOR_ID_WCHIC, PCI_DEVICE_ID_WCHIC_CH384_4S,
PCI_ANY_ID, PCI_ANY_ID,
0, 0, pbn_wch384_4 },
- { PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH384_8S,
+ { PCI_VENDOR_ID_WCHIC, PCI_DEVICE_ID_WCHIC_CH384_8S,
PCI_ANY_ID, PCI_ANY_ID,
0, 0, pbn_wch384_8 },
/*
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 649e74e9b52f..1ea52fce9bf1 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -3250,7 +3250,7 @@ void serial8250_init_port(struct uart_8250_port *up)
port->ops = &serial8250_pops;
port->has_sysrq = IS_ENABLED(CONFIG_SERIAL_8250_CONSOLE);
- up->cur_iotype = 0xFF;
+ up->cur_iotype = UPIO_UNKNOWN;
}
EXPORT_SYMBOL_GPL(serial8250_init_port);
diff --git a/drivers/tty/serial/altera_jtaguart.c b/drivers/tty/serial/altera_jtaguart.c
index b9c3c3bed0c1..d47a62d1c9f7 100644
--- a/drivers/tty/serial/altera_jtaguart.c
+++ b/drivers/tty/serial/altera_jtaguart.c
@@ -24,8 +24,6 @@
#include <linux/io.h>
#include <linux/altera_jtaguart.h>
-#define DRV_NAME "altera_jtaguart"
-
/*
* Altera JTAG UART register definitions according to the Altera JTAG UART
* datasheet: https://www.altera.com/literature/hb/nios2/n2cpu_nii51009.pdf
@@ -173,7 +171,7 @@ static int altera_jtaguart_startup(struct uart_port *port)
int ret;
ret = request_irq(port->irq, altera_jtaguart_interrupt, 0,
- DRV_NAME, port);
+ dev_name(port->dev), port);
if (ret) {
dev_err(port->dev, "unable to attach Altera JTAG UART %d interrupt vector=%d\n",
port->line, port->irq);
@@ -365,7 +363,7 @@ OF_EARLYCON_DECLARE(juart, "altr,juart-1.0", altera_jtaguart_earlycon_setup);
static struct uart_driver altera_jtaguart_driver = {
.owner = THIS_MODULE,
- .driver_name = "altera_jtaguart",
+ .driver_name = KBUILD_MODNAME,
.dev_name = "ttyJ",
.major = ALTERA_JTAGUART_MAJOR,
.minor = ALTERA_JTAGUART_MINOR,
@@ -451,7 +449,7 @@ static struct platform_driver altera_jtaguart_platform_driver = {
.probe = altera_jtaguart_probe,
.remove = altera_jtaguart_remove,
.driver = {
- .name = DRV_NAME,
+ .name = KBUILD_MODNAME,
.of_match_table = of_match_ptr(altera_jtaguart_match),
},
};
@@ -481,4 +479,4 @@ module_exit(altera_jtaguart_exit);
MODULE_DESCRIPTION("Altera JTAG UART driver");
MODULE_AUTHOR("Thomas Chou <thomas@wytron.com.tw>");
MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_ALIAS("platform:" KBUILD_MODNAME);
diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c
index c94655453c33..1759137121cc 100644
--- a/drivers/tty/serial/altera_uart.c
+++ b/drivers/tty/serial/altera_uart.c
@@ -24,7 +24,6 @@
#include <linux/io.h>
#include <linux/altera_uart.h>
-#define DRV_NAME "altera_uart"
#define SERIAL_ALTERA_MAJOR 204
#define SERIAL_ALTERA_MINOR 213
@@ -518,7 +517,7 @@ OF_EARLYCON_DECLARE(uart, "altr,uart-1.0", altera_uart_earlycon_setup);
*/
static struct uart_driver altera_uart_driver = {
.owner = THIS_MODULE,
- .driver_name = DRV_NAME,
+ .driver_name = KBUILD_MODNAME,
.dev_name = "ttyAL",
.major = SERIAL_ALTERA_MAJOR,
.minor = SERIAL_ALTERA_MINOR,
@@ -619,7 +618,7 @@ static struct platform_driver altera_uart_platform_driver = {
.probe = altera_uart_probe,
.remove = altera_uart_remove,
.driver = {
- .name = DRV_NAME,
+ .name = KBUILD_MODNAME,
.of_match_table = of_match_ptr(altera_uart_match),
},
};
@@ -649,5 +648,5 @@ module_exit(altera_uart_exit);
MODULE_DESCRIPTION("Altera UART driver");
MODULE_AUTHOR("Thomas Chou <thomas@wytron.com.tw>");
MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_ALIAS("platform:" KBUILD_MODNAME);
MODULE_ALIAS_CHARDEV_MAJOR(SERIAL_ALTERA_MAJOR);
diff --git a/drivers/tty/serial/mpc52xx_uart.c b/drivers/tty/serial/mpc52xx_uart.c
index f55aa353aed9..2204cc3e3b07 100644
--- a/drivers/tty/serial/mpc52xx_uart.c
+++ b/drivers/tty/serial/mpc52xx_uart.c
@@ -1621,7 +1621,7 @@ mpc52xx_console_setup(struct console *co, char *options)
(void *)port->mapbase, port->membase,
port->irq, port->uartclk);
- /* Setup the port parameters accoding to options */
+ /* Setup the port parameters according to options */
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
else
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 74fa02b23772..c472594c3a9f 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -790,7 +790,6 @@ static int uart_get_info(struct tty_port *port, struct serial_struct *retinfo)
{
struct uart_state *state = container_of(port, struct uart_state, port);
struct uart_port *uport;
- int ret = -ENODEV;
/* Initialize structure in case we error out later to prevent any stack info leakage. */
*retinfo = (struct serial_struct){};
@@ -799,10 +798,10 @@ static int uart_get_info(struct tty_port *port, struct serial_struct *retinfo)
* Ensure the state we copy is consistent and no hardware changes
* occur as we go
*/
- mutex_lock(&port->mutex);
+ guard(mutex)(&port->mutex);
uport = uart_port_check(state);
if (!uport)
- goto out;
+ return -ENODEV;
retinfo->type = uport->type;
retinfo->line = uport->line;
@@ -823,10 +822,7 @@ static int uart_get_info(struct tty_port *port, struct serial_struct *retinfo)
retinfo->iomem_reg_shift = uport->regshift;
retinfo->iomem_base = (void *)(unsigned long)uport->mapbase;
- ret = 0;
-out:
- mutex_unlock(&port->mutex);
- return ret;
+ return 0;
}
static int uart_get_info_user(struct tty_struct *tty,
@@ -838,6 +834,61 @@ static int uart_get_info_user(struct tty_struct *tty,
return uart_get_info(port, ss) < 0 ? -EIO : 0;
}
+static int uart_change_port(struct uart_port *uport,
+ const struct serial_struct *new_info,
+ unsigned long new_port)
+{
+ unsigned long old_iobase, old_mapbase;
+ unsigned int old_type, old_iotype, old_hub6, old_shift;
+ int retval;
+
+ old_iobase = uport->iobase;
+ old_mapbase = uport->mapbase;
+ old_type = uport->type;
+ old_hub6 = uport->hub6;
+ old_iotype = uport->iotype;
+ old_shift = uport->regshift;
+
+ if (old_type != PORT_UNKNOWN && uport->ops->release_port)
+ uport->ops->release_port(uport);
+
+ uport->iobase = new_port;
+ uport->type = new_info->type;
+ uport->hub6 = new_info->hub6;
+ uport->iotype = new_info->io_type;
+ uport->regshift = new_info->iomem_reg_shift;
+ uport->mapbase = (unsigned long)new_info->iomem_base;
+
+ if (uport->type == PORT_UNKNOWN || !uport->ops->request_port)
+ return 0;
+
+ retval = uport->ops->request_port(uport);
+ if (retval == 0)
+ return 0; /* succeeded => done */
+
+ /*
+ * If we fail to request resources for the new port, try to restore the
+ * old settings.
+ */
+ uport->iobase = old_iobase;
+ uport->type = old_type;
+ uport->hub6 = old_hub6;
+ uport->iotype = old_iotype;
+ uport->regshift = old_shift;
+ uport->mapbase = old_mapbase;
+
+ if (old_type == PORT_UNKNOWN)
+ return retval;
+
+ retval = uport->ops->request_port(uport);
+ /* If we failed to restore the old settings, we fail like this. */
+ if (retval)
+ uport->type = PORT_UNKNOWN;
+
+ /* We failed anyway. */
+ return -EBUSY;
+}
+
static int uart_set_info(struct tty_struct *tty, struct tty_port *port,
struct uart_state *state,
struct serial_struct *new_info)
@@ -847,7 +898,7 @@ static int uart_set_info(struct tty_struct *tty, struct tty_port *port,
unsigned int change_irq, change_port, closing_wait;
unsigned int old_custom_divisor, close_delay;
upf_t old_flags, new_flags;
- int retval = 0;
+ int retval;
if (!uport)
return -EIO;
@@ -886,13 +937,10 @@ static int uart_set_info(struct tty_struct *tty, struct tty_port *port,
if (!(uport->flags & UPF_FIXED_PORT)) {
unsigned int uartclk = new_info->baud_base * 16;
/* check needs to be done here before other settings made */
- if (uartclk == 0) {
- retval = -EINVAL;
- goto exit;
- }
+ if (uartclk == 0)
+ return -EINVAL;
}
if (!capable(CAP_SYS_ADMIN)) {
- retval = -EPERM;
if (change_irq || change_port ||
(new_info->baud_base != uport->uartclk / 16) ||
(close_delay != port->close_delay) ||
@@ -900,7 +948,7 @@ static int uart_set_info(struct tty_struct *tty, struct tty_port *port,
(new_info->xmit_fifo_size &&
new_info->xmit_fifo_size != uport->fifosize) ||
(((new_flags ^ old_flags) & ~UPF_USR_MASK) != 0))
- goto exit;
+ return -EPERM;
uport->flags = ((uport->flags & ~UPF_USR_MASK) |
(new_flags & UPF_USR_MASK));
uport->custom_divisor = new_info->custom_divisor;
@@ -910,30 +958,24 @@ static int uart_set_info(struct tty_struct *tty, struct tty_port *port,
if (change_irq || change_port) {
retval = security_locked_down(LOCKDOWN_TIOCSSERIAL);
if (retval)
- goto exit;
+ return retval;
}
- /*
- * Ask the low level driver to verify the settings.
- */
- if (uport->ops->verify_port)
+ /* Ask the low level driver to verify the settings. */
+ if (uport->ops->verify_port) {
retval = uport->ops->verify_port(uport, new_info);
+ if (retval)
+ return retval;
+ }
if ((new_info->irq >= irq_get_nr_irqs()) || (new_info->irq < 0) ||
(new_info->baud_base < 9600))
- retval = -EINVAL;
-
- if (retval)
- goto exit;
+ return -EINVAL;
if (change_port || change_irq) {
- retval = -EBUSY;
-
- /*
- * Make sure that we are the sole user of this port.
- */
+ /* Make sure that we are the sole user of this port. */
if (tty_port_users(port) > 1)
- goto exit;
+ return -EBUSY;
/*
* We need to shutdown the serial port at the old
@@ -943,69 +985,9 @@ static int uart_set_info(struct tty_struct *tty, struct tty_port *port,
}
if (change_port) {
- unsigned long old_iobase, old_mapbase;
- unsigned int old_type, old_iotype, old_hub6, old_shift;
-
- old_iobase = uport->iobase;
- old_mapbase = uport->mapbase;
- old_type = uport->type;
- old_hub6 = uport->hub6;
- old_iotype = uport->iotype;
- old_shift = uport->regshift;
-
- /*
- * Free and release old regions
- */
- if (old_type != PORT_UNKNOWN && uport->ops->release_port)
- uport->ops->release_port(uport);
-
- uport->iobase = new_port;
- uport->type = new_info->type;
- uport->hub6 = new_info->hub6;
- uport->iotype = new_info->io_type;
- uport->regshift = new_info->iomem_reg_shift;
- uport->mapbase = (unsigned long)new_info->iomem_base;
-
- /*
- * Claim and map the new regions
- */
- if (uport->type != PORT_UNKNOWN && uport->ops->request_port) {
- retval = uport->ops->request_port(uport);
- } else {
- /* Always success - Jean II */
- retval = 0;
- }
-
- /*
- * If we fail to request resources for the
- * new port, try to restore the old settings.
- */
- if (retval) {
- uport->iobase = old_iobase;
- uport->type = old_type;
- uport->hub6 = old_hub6;
- uport->iotype = old_iotype;
- uport->regshift = old_shift;
- uport->mapbase = old_mapbase;
-
- if (old_type != PORT_UNKNOWN) {
- retval = uport->ops->request_port(uport);
- /*
- * If we failed to restore the old settings,
- * we fail like this.
- */
- if (retval)
- uport->type = PORT_UNKNOWN;
-
- /*
- * We failed anyway.
- */
- retval = -EBUSY;
- }
-
- /* Added to return the correct error -Ram Gupta */
- goto exit;
- }
+ retval = uart_change_port(uport, new_info, new_port);
+ if (retval)
+ return retval;
}
if (change_irq)
@@ -1021,9 +1003,9 @@ static int uart_set_info(struct tty_struct *tty, struct tty_port *port,
uport->fifosize = new_info->xmit_fifo_size;
check_and_exit:
- retval = 0;
if (uport->type == PORT_UNKNOWN)
- goto exit;
+ return 0;
+
if (tty_port_initialized(port)) {
if (((old_flags ^ uport->flags) & UPF_SPD_MASK) ||
old_custom_divisor != uport->custom_divisor) {
@@ -1039,15 +1021,17 @@ static int uart_set_info(struct tty_struct *tty, struct tty_port *port,
}
uart_change_line_settings(tty, state, NULL);
}
- } else {
- retval = uart_startup(tty, state, true);
- if (retval == 0)
- tty_port_set_initialized(port, true);
- if (retval > 0)
- retval = 0;
+
+ return 0;
}
- exit:
- return retval;
+
+ retval = uart_startup(tty, state, true);
+ if (retval < 0)
+ return retval;
+ if (retval == 0)
+ tty_port_set_initialized(port, true);
+
+ return 0;
}
static int uart_set_info_user(struct tty_struct *tty, struct serial_struct *ss)
@@ -3061,26 +3045,25 @@ static ssize_t console_store(struct device *dev,
if (ret)
return ret;
- mutex_lock(&port->mutex);
+ guard(mutex)(&port->mutex);
uport = uart_port_check(state);
- if (uport) {
- oldconsole = uart_console_registered(uport);
- if (oldconsole && !newconsole) {
- ret = unregister_console(uport->cons);
- } else if (!oldconsole && newconsole) {
- if (uart_console(uport)) {
- uport->console_reinit = 1;
- register_console(uport->cons);
- } else {
- ret = -ENOENT;
- }
- }
- } else {
- ret = -ENXIO;
+ if (!uport)
+ return -ENXIO;
+
+ oldconsole = uart_console_registered(uport);
+ if (oldconsole && !newconsole) {
+ ret = unregister_console(uport->cons);
+ if (ret < 0)
+ return ret;
+ } else if (!oldconsole && newconsole) {
+ if (!uart_console(uport))
+ return -ENOENT;
+
+ uport->console_reinit = 1;
+ register_console(uport->cons);
}
- mutex_unlock(&port->mutex);
- return ret < 0 ? ret : count;
+ return count;
}
static DEVICE_ATTR_RO(uartclk);
@@ -3136,7 +3119,6 @@ static int serial_core_add_one_port(struct uart_driver *drv, struct uart_port *u
{
struct uart_state *state;
struct tty_port *port;
- int ret = 0;
struct device *tty_dev;
int num_groups;
@@ -3146,11 +3128,9 @@ static int serial_core_add_one_port(struct uart_driver *drv, struct uart_port *u
state = drv->state + uport->line;
port = &state->port;
- mutex_lock(&port->mutex);
- if (state->uart_port) {
- ret = -EINVAL;
- goto out;
- }
+ guard(mutex)(&port->mutex);
+ if (state->uart_port)
+ return -EINVAL;
/* Link the port to the driver state table and vice versa */
atomic_set(&state->refcount, 1);
@@ -3170,10 +3150,8 @@ static int serial_core_add_one_port(struct uart_driver *drv, struct uart_port *u
uport->minor = drv->tty_driver->minor_start + uport->line;
uport->name = kasprintf(GFP_KERNEL, "%s%d", drv->dev_name,
drv->tty_driver->name_base + uport->line);
- if (!uport->name) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!uport->name)
+ return -ENOMEM;
if (uport->cons && uport->dev)
of_console_check(uport->dev->of_node, uport->cons->name, uport->line);
@@ -3189,10 +3167,9 @@ static int serial_core_add_one_port(struct uart_driver *drv, struct uart_port *u
uport->tty_groups = kcalloc(num_groups, sizeof(*uport->tty_groups),
GFP_KERNEL);
- if (!uport->tty_groups) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!uport->tty_groups)
+ return -ENOMEM;
+
uport->tty_groups[0] = &tty_dev_attr_group;
if (uport->attr_group)
uport->tty_groups[1] = uport->attr_group;
@@ -3215,10 +3192,7 @@ static int serial_core_add_one_port(struct uart_driver *drv, struct uart_port *u
uport->line);
}
- out:
- mutex_unlock(&port->mutex);
-
- return ret;
+ return 0;
}
/**
@@ -3384,7 +3358,7 @@ int serial_core_register_port(struct uart_driver *drv, struct uart_port *port)
struct serial_ctrl_device *ctrl_dev, *new_ctrl_dev = NULL;
int ret;
- mutex_lock(&port_mutex);
+ guard(mutex)(&port_mutex);
/*
* Prevent serial_port_runtime_resume() from trying to use the port
@@ -3396,10 +3370,8 @@ int serial_core_register_port(struct uart_driver *drv, struct uart_port *port)
ctrl_dev = serial_core_ctrl_find(drv, port->dev, port->ctrl_id);
if (!ctrl_dev) {
new_ctrl_dev = serial_core_ctrl_device_add(port);
- if (IS_ERR(new_ctrl_dev)) {
- ret = PTR_ERR(new_ctrl_dev);
- goto err_unlock;
- }
+ if (IS_ERR(new_ctrl_dev))
+ return PTR_ERR(new_ctrl_dev);
ctrl_dev = new_ctrl_dev;
}
@@ -3420,8 +3392,6 @@ int serial_core_register_port(struct uart_driver *drv, struct uart_port *port)
if (ret)
goto err_unregister_port_dev;
- mutex_unlock(&port_mutex);
-
return 0;
err_unregister_port_dev:
@@ -3430,9 +3400,6 @@ err_unregister_port_dev:
err_unregister_ctrl_dev:
serial_base_ctrl_device_remove(new_ctrl_dev);
-err_unlock:
- mutex_unlock(&port_mutex);
-
return ret;
}
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 924b803af440..e0c56c328d10 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -3571,7 +3571,7 @@ static int __init early_console_setup(struct earlycon_device *device,
return -ENODEV;
device->port.type = type;
- memcpy(&sci_ports[0].port, &device->port, sizeof(struct uart_port));
+ sci_ports[0].port = device->port;
port_cfg.type = type;
sci_ports[0].cfg = &port_cfg;
sci_ports[0].params = sci_probe_regmap(&port_cfg);
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index dcb1769c3625..0e84677712b4 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -3618,7 +3618,7 @@ void console_sysfs_notify(void)
sysfs_notify(&consdev->kobj, NULL, "active");
}
-static struct ctl_table tty_table[] = {
+static const struct ctl_table tty_table[] = {
{
.procname = "legacy_tiocsti",
.data = &tty_legacy_tiocsti,
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index d2402bf4aea2..de5deb1a0118 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2593,6 +2593,11 @@
#define PCI_VENDOR_ID_REDHAT 0x1b36
+#define PCI_VENDOR_ID_WCHIC 0x1c00
+#define PCI_DEVICE_ID_WCHIC_CH382_0S1P 0x3050
+#define PCI_DEVICE_ID_WCHIC_CH382_2S1P 0x3250
+#define PCI_DEVICE_ID_WCHIC_CH382_2S 0x3253
+
#define PCI_VENDOR_ID_SILICOM_DENMARK 0x1c2c
#define PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS 0x1c36
@@ -2647,6 +2652,12 @@
#define PCI_VENDOR_ID_AKS 0x416c
#define PCI_DEVICE_ID_AKS_ALADDINCARD 0x0100
+#define PCI_VENDOR_ID_WCHCN 0x4348
+#define PCI_DEVICE_ID_WCHCN_CH353_4S 0x3453
+#define PCI_DEVICE_ID_WCHCN_CH353_2S1PF 0x5046
+#define PCI_DEVICE_ID_WCHCN_CH353_1S1P 0x5053
+#define PCI_DEVICE_ID_WCHCN_CH353_2S1P 0x7053
+
#define PCI_VENDOR_ID_ACCESSIO 0x494f
#define PCI_DEVICE_ID_ACCESSIO_WDG_CSM 0x22c0
generated by cgit v1.2.3 (git 2.46.0) at 2025-09-25 18:21:31 +0000