diff options
Diffstat (limited to 'drivers/tty/serial/pch_uart.c')
| -rw-r--r-- | drivers/tty/serial/pch_uart.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c index e825460478be..c2816f494807 100644 --- a/drivers/tty/serial/pch_uart.c +++ b/drivers/tty/serial/pch_uart.c @@ -210,6 +210,7 @@ enum { #define CMITC_UARTCLK 192000000 /* 192.0000 MHz */ #define FRI2_64_UARTCLK 64000000 /* 64.0000 MHz */ #define FRI2_48_UARTCLK 48000000 /* 48.0000 MHz */ +#define NTC1_UARTCLK 64000000 /* 64.0000 MHz */ struct pch_uart_buffer { unsigned char *buf; @@ -304,11 +305,7 @@ static const int trigger_level_1[4] = { 1, 1, 1, 1 }; #ifdef CONFIG_DEBUG_FS #define PCH_REGS_BUFSIZE 1024 -static int pch_show_regs_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} + static ssize_t port_show_regs(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -362,7 +359,7 @@ static ssize_t port_show_regs(struct file *file, char __user *user_buf, static const struct file_operations port_regs_ops = { .owner = THIS_MODULE, - .open = pch_show_regs_open, + .open = simple_open, .read = port_show_regs, .llseek = default_llseek, }; @@ -388,6 +385,12 @@ static int pch_uart_get_uartclk(void) if (cmp && strstr(cmp, "Fish River Island II")) return FRI2_48_UARTCLK; + /* Kontron COMe-mTT10 (nanoETXexpress-TT) */ + cmp = dmi_get_system_info(DMI_BOARD_NAME); + if (cmp && (strstr(cmp, "COMe-mTT") || + strstr(cmp, "nanoETXexpress-TT"))) + return NTC1_UARTCLK; + return DEFAULT_UARTCLK; } @@ -1444,9 +1447,11 @@ static int pch_uart_verify_port(struct uart_port *port, __func__); return -EOPNOTSUPP; #endif - priv->use_dma = 1; priv->use_dma_flag = 1; dev_info(priv->port.dev, "PCH UART : Use DMA Mode\n"); + if (!priv->use_dma) + pch_request_dma(port); + priv->use_dma = 1; } return 0; @@ -1655,6 +1660,7 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev, } pci_enable_msi(pdev); + pci_set_master(pdev); iobase = pci_resource_start(pdev, 0); mapbase = pci_resource_start(pdev, 1); |