serial: 8250_fintek: Add F81216 Support
Fintek F81216 is a LPC to 4 UARTs device. It's the F81216 series but support less functional than F81216AD/F81216H The following list is brief descriptions of F81216 series: F81216H (0105) 9Bit/High baud rate(not implements with mainline) RS485, 128Bytes FIFO (implemented) F81216AD (0216) 9Bit(not implements with mainline) RS485(implemented) F81216 (0208) basically 16550A Suggested-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Родитель
c2236facae
Коммит
1e26c472c1
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@ -23,6 +23,7 @@
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#define CHIP_ID2 0x21
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#define CHIP_ID_F81216AD 0x1602
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#define CHIP_ID_F81216H 0x0501
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#define CHIP_ID_F81216 0x0802
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#define VENDOR_ID1 0x23
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#define VENDOR_ID1_VAL 0x19
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#define VENDOR_ID2 0x24
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@ -107,8 +108,14 @@ static int fintek_8250_check_id(struct fintek_8250 *pdata)
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chip = sio_read_reg(pdata, CHIP_ID1);
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chip |= sio_read_reg(pdata, CHIP_ID2) << 8;
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if (chip != CHIP_ID_F81216AD && chip != CHIP_ID_F81216H)
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switch (chip) {
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case CHIP_ID_F81216AD:
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case CHIP_ID_F81216H:
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case CHIP_ID_F81216:
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break;
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default:
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return -ENODEV;
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}
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pdata->pid = chip;
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return 0;
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@ -235,6 +242,21 @@ static int probe_setup_port(struct fintek_8250 *pdata, u16 io_address,
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return -ENODEV;
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}
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static void fintek_8250_set_rs485_handler(struct uart_8250_port *uart)
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{
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struct fintek_8250 *pdata = uart->port.private_data;
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switch (pdata->pid) {
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case CHIP_ID_F81216AD:
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case CHIP_ID_F81216H:
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uart->port.rs485_config = fintek_8250_rs485_config;
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break;
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default: /* No RS485 Auto direction functional */
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break;
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}
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}
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int fintek_8250_probe(struct uart_8250_port *uart)
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{
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struct fintek_8250 *pdata;
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@ -248,8 +270,8 @@ int fintek_8250_probe(struct uart_8250_port *uart)
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return -ENOMEM;
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memcpy(pdata, &probe_data, sizeof(probe_data));
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uart->port.rs485_config = fintek_8250_rs485_config;
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uart->port.private_data = pdata;
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fintek_8250_set_rs485_handler(uart);
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return 0;
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}
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