Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-06 05:06:29 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

serial: 8250_fintek: Add support for F81216E

Browse Source 
The F81216E is a LPC/eSPI to 4 UART Super I/O and is mostly compatible with
the F81216H, but does not support RS-485 auto-direction delays on any port.

Signed-off-by: Filip Brozovic <fbrozovic@gmail.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20241110111703.15494-1-fbrozovic@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Filip Brozovic 2024-11-10 12:17:00 +01:00 committed by Greg Kroah-Hartman
parent 3791ea69a4
commit 166105c903
1 changed files with 13 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/tty/serial/8250/8250_fintek.c
View File

@ -21,6 +21,7 @@
#define CHIP_ID_F81866 0x1010 #define CHIP_ID_F81866 0x1010
#define CHIP_ID_F81966 0x0215 #define CHIP_ID_F81966 0x0215
#define CHIP_ID_F81216AD 0x1602 #define CHIP_ID_F81216AD 0x1602
#define CHIP_ID_F81216E 0x1617
#define CHIP_ID_F81216H 0x0501 #define CHIP_ID_F81216H 0x0501
#define CHIP_ID_F81216 0x0802 #define CHIP_ID_F81216 0x0802
#define VENDOR_ID1 0x23 #define VENDOR_ID1 0x23
@ -158,6 +159,7 @@ static int fintek_8250_check_id(struct fintek_8250 *pdata)
case CHIP_ID_F81866: case CHIP_ID_F81866:
case CHIP_ID_F81966: case CHIP_ID_F81966:
case CHIP_ID_F81216AD: case CHIP_ID_F81216AD:
case CHIP_ID_F81216E:
case CHIP_ID_F81216H: case CHIP_ID_F81216H:
case CHIP_ID_F81216: case CHIP_ID_F81216:
break; break;
@ -181,6 +183,7 @@ static int fintek_8250_get_ldn_range(struct fintek_8250 *pdata, int *min,
return 0; return 0;
case CHIP_ID_F81216AD: case CHIP_ID_F81216AD:
case CHIP_ID_F81216E:
case CHIP_ID_F81216H: case CHIP_ID_F81216H:
case CHIP_ID_F81216: case CHIP_ID_F81216:
*min = F81216_LDN_LOW; *min = F81216_LDN_LOW;
@ -250,6 +253,7 @@ static void fintek_8250_set_irq_mode(struct fintek_8250 *pdata, bool is_level)
break; break;
case CHIP_ID_F81216AD: case CHIP_ID_F81216AD:
case CHIP_ID_F81216E:
case CHIP_ID_F81216H: case CHIP_ID_F81216H:
case CHIP_ID_F81216: case CHIP_ID_F81216:
sio_write_mask_reg(pdata, FINTEK_IRQ_MODE, IRQ_SHARE, sio_write_mask_reg(pdata, FINTEK_IRQ_MODE, IRQ_SHARE,
@ -263,7 +267,8 @@ static void fintek_8250_set_irq_mode(struct fintek_8250 *pdata, bool is_level)
static void fintek_8250_set_max_fifo(struct fintek_8250 *pdata) static void fintek_8250_set_max_fifo(struct fintek_8250 *pdata)
{ {
switch (pdata->pid) { switch (pdata->pid) {
case CHIP_ID_F81216H: /* 128Bytes FIFO */ case CHIP_ID_F81216E: /* 128Bytes FIFO */
case CHIP_ID_F81216H:
case CHIP_ID_F81966: case CHIP_ID_F81966:
case CHIP_ID_F81866: case CHIP_ID_F81866:
sio_write_mask_reg(pdata, FIFO_CTRL, sio_write_mask_reg(pdata, FIFO_CTRL,
@ -297,6 +302,7 @@ static void fintek_8250_set_termios(struct uart_port *port,
goto exit; goto exit;
switch (pdata->pid) { switch (pdata->pid) {
case CHIP_ID_F81216E:
case CHIP_ID_F81216H: case CHIP_ID_F81216H:
reg = RS485; reg = RS485;
break; break;
@ -346,6 +352,7 @@ static void fintek_8250_set_termios_handler(struct uart_8250_port *uart)
struct fintek_8250 *pdata = uart->port.private_data; struct fintek_8250 *pdata = uart->port.private_data;
switch (pdata->pid) { switch (pdata->pid) {
case CHIP_ID_F81216E:
case CHIP_ID_F81216H: case CHIP_ID_F81216H:
case CHIP_ID_F81966: case CHIP_ID_F81966:
case CHIP_ID_F81866: case CHIP_ID_F81866:
@ -438,6 +445,11 @@ static void fintek_8250_set_rs485_handler(struct uart_8250_port *uart)
uart->port.rs485_supported = fintek_8250_rs485_supported; uart->port.rs485_supported = fintek_8250_rs485_supported;
break; break;
case CHIP_ID_F81216E: /* F81216E does not support RS485 delays */
uart->port.rs485_config = fintek_8250_rs485_config;
uart->port.rs485_supported = fintek_8250_rs485_supported;
break;
default: /* No RS485 Auto direction functional */ default: /* No RS485 Auto direction functional */
break; break;
} }