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Subject[PATCH v3 07/10] serial: uartps: Fill struct uart_driver in probe()
Date
This is preparation step for dynamic port allocation without
CDNS_UART_NR_PORTS macro. Fill the structure only once at probe.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

Changes in v3:
- s/,/;/ in filling structure
- get cdns_uart_uart_driver out of PS_UART_CONSOLE ifdefs

Changes in v2:
- new patch - it can be sent separately too

drivers/tty/serial/xilinx_uartps.c | 26 ++++++++++++--------------
1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 54735a7f9960..61087233f411 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1099,6 +1099,8 @@ static void cdns_uart_pm(struct uart_port *port, unsigned int state,
#endif
};

+static struct uart_driver cdns_uart_uart_driver;
+
#ifdef CONFIG_SERIAL_XILINX_PS_UART_CONSOLE
/**
* cdns_uart_console_putchar - write the character to the FIFO buffer
@@ -1239,8 +1241,6 @@ static int cdns_uart_console_setup(struct console *co, char *options)
return uart_set_options(port, co, baud, parity, bits, flow);
}

-static struct uart_driver cdns_uart_uart_driver;
-
static struct console cdns_uart_console = {
.name = CDNS_UART_TTY_NAME,
.write = cdns_uart_console_write,
@@ -1252,18 +1252,6 @@ static int cdns_uart_console_setup(struct console *co, char *options)
};
#endif /* CONFIG_SERIAL_XILINX_PS_UART_CONSOLE */

-static struct uart_driver cdns_uart_uart_driver = {
- .owner = THIS_MODULE,
- .driver_name = CDNS_UART_NAME,
- .dev_name = CDNS_UART_TTY_NAME,
- .major = CDNS_UART_MAJOR,
- .minor = CDNS_UART_MINOR,
- .nr = CDNS_UART_NR_PORTS,
-#ifdef CONFIG_SERIAL_XILINX_PS_UART_CONSOLE
- .cons = &cdns_uart_console,
-#endif
-};
-
#ifdef CONFIG_PM_SLEEP
/**
* cdns_uart_suspend - suspend event
@@ -1429,6 +1417,16 @@ static int cdns_uart_probe(struct platform_device *pdev)
}

if (!cdns_uart_uart_driver.state) {
+ cdns_uart_uart_driver.owner = THIS_MODULE;
+ cdns_uart_uart_driver.driver_name = CDNS_UART_NAME;
+ cdns_uart_uart_driver.dev_name = CDNS_UART_TTY_NAME;
+ cdns_uart_uart_driver.major = CDNS_UART_MAJOR;
+ cdns_uart_uart_driver.minor = CDNS_UART_MINOR;
+ cdns_uart_uart_driver.nr = CDNS_UART_NR_PORTS;
+#ifdef CONFIG_SERIAL_XILINX_PS_UART_CONSOLE
+ cdns_uart_uart_driver.cons = &cdns_uart_console;
+#endif
+
rc = uart_register_driver(&cdns_uart_uart_driver);
if (rc < 0) {
dev_err(&pdev->dev, "Failed to register driver\n");
--
1.9.1
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