X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=drivers%2Fserial%2Fsunzilog.c;h=cb2e405063794f97922aaa6f5eaf9e0d77a15302;hb=cf816ecb533ab96b883dfdc0db174598b5b5c4d2;hp=283bef0d24cb47a0fa0e956af5ef5a95c800a9ce;hpb=35438c4327df18dbf5e7f597b69299119f4a14de;p=linux-2.6-omap-h63xx.git diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c index 283bef0d24c..cb2e4050637 100644 --- a/drivers/serial/sunzilog.c +++ b/drivers/serial/sunzilog.c @@ -63,10 +63,6 @@ readb(&((__channel)->control)) #endif -static int num_sunzilog; -#define NUM_SUNZILOG num_sunzilog -#define NUM_CHANNELS (NUM_SUNZILOG * 2) - #define ZS_CLOCK 4915200 /* Zilog input clock rate. */ #define ZS_CLOCK_DIVISOR 16 /* Divisor this driver uses. */ @@ -1031,18 +1027,19 @@ static struct uart_driver sunzilog_reg = { .major = TTY_MAJOR, }; -static int __init sunzilog_alloc_tables(void) +static int __init sunzilog_alloc_tables(int num_sunzilog) { struct uart_sunzilog_port *up; unsigned long size; + int num_channels = num_sunzilog * 2; int i; - size = NUM_CHANNELS * sizeof(struct uart_sunzilog_port); + size = num_channels * sizeof(struct uart_sunzilog_port); sunzilog_port_table = kzalloc(size, GFP_KERNEL); if (!sunzilog_port_table) return -ENOMEM; - for (i = 0; i < NUM_CHANNELS; i++) { + for (i = 0; i < num_channels; i++) { up = &sunzilog_port_table[i]; spin_lock_init(&up->port.lock); @@ -1050,13 +1047,13 @@ static int __init sunzilog_alloc_tables(void) if (i == 0) sunzilog_irq_chain = up; - if (i < NUM_CHANNELS - 1) + if (i < num_channels - 1) up->next = up + 1; else up->next = NULL; } - size = NUM_SUNZILOG * sizeof(struct zilog_layout __iomem *); + size = num_sunzilog * sizeof(struct zilog_layout __iomem *); sunzilog_chip_regs = kzalloc(size, GFP_KERNEL); if (!sunzilog_chip_regs) { kfree(sunzilog_port_table); @@ -1496,34 +1493,28 @@ static int __init sunzilog_init(void) struct device_node *dp; int err, uart_count; int num_keybms; + int num_sunzilog = 0; - NUM_SUNZILOG = 0; num_keybms = 0; for_each_node_by_name(dp, "zs") { - NUM_SUNZILOG++; + num_sunzilog++; if (of_find_property(dp, "keyboard", NULL)) num_keybms++; } uart_count = 0; - if (NUM_SUNZILOG) { + if (num_sunzilog) { int uart_count; - err = sunzilog_alloc_tables(); + err = sunzilog_alloc_tables(num_sunzilog); if (err) goto out; - uart_count = (NUM_SUNZILOG * 2) - (2 * num_keybms); + uart_count = (num_sunzilog * 2) - (2 * num_keybms); - sunzilog_reg.nr = uart_count; - sunzilog_reg.minor = sunserial_current_minor; - err = uart_register_driver(&sunzilog_reg); + err = sunserial_register_minors(&sunzilog_reg, uart_count); if (err) goto out_free_tables; - - sunzilog_reg.tty_driver->name_base = sunzilog_reg.minor - 64; - - sunserial_current_minor += uart_count; } err = of_register_driver(&zs_driver, &of_bus_type); @@ -1557,8 +1548,8 @@ out_unregister_driver: of_unregister_driver(&zs_driver); out_unregister_uart: - if (NUM_SUNZILOG) { - uart_unregister_driver(&sunzilog_reg); + if (num_sunzilog) { + sunserial_unregister_minors(&sunzilog_reg, num_sunzilog); sunzilog_reg.cons = NULL; } @@ -1590,8 +1581,8 @@ static void __exit sunzilog_exit(void) zilog_irq = -1; } - if (NUM_SUNZILOG) { - uart_unregister_driver(&sunzilog_reg); + if (sunzilog_reg.nr) { + sunserial_unregister_minors(&sunzilog_reg, sunzilog_reg.nr); sunzilog_free_tables(); } }