This Multi-IO card has one serial 16550-like serial connectors. Here's
the lspci output, after this commit is applied:
01:00.0 Serial controller [0700]: Device [1c00:3470] (rev 10) (prog-if 05
[16850])
Subsystem: Device [1c00:3470]
Flags: fast devsel, IRQ 16
I/O ports at e000 [size=256]
Memory at f0100000 (32-bit, prefetchable) [size=32K]
I/O ports at e100 [size=4]
Expansion ROM at f7d00000 [disabled] [size=32K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable- Count=1/32 Maskable+ 64bit+
Capabilities: [80] Express Legacy Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Kernel driver in use: parport_serial
This card was already added to the blacklist of 8250_pci.c in commit
72a3c0e4e662 ("tty: Add support for the WCH384 4S multi-IO card").
Cc: Sergej Pupykin <m...@sergej.pp.ru>
Signed-off-by: Matt Turner <matts...@gmail.com>
---
It looks like CH355_4S is similarly missing, but I don't have hardware
to test.
This commit makes me wonder if I'm missing something -- how could
anything have worked after commit 72a3c0e4e662 without support in
parport_serial?
drivers/parport/parport_serial.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/parport/parport_serial.c b/drivers/parport/parport_serial.c
index e15b4845f7c6..2c166d5a0d91 100644
--- a/drivers/parport/parport_serial.c
+++ b/drivers/parport/parport_serial.c
@@ -65,6 +65,7 @@ enum parport_pc_pci_cards {
wch_ch353_1s1p,
wch_ch353_2s1p,
wch_ch382_2s1p,
+ wch_ch384_4,
sunix_2s1p,
};
@@ -153,6 +154,7 @@ static struct parport_pc_pci cards[] = {
/* wch_ch353_1s1p*/ { 1, { { 1, -1}, } },
/* wch_ch353_2s1p*/ { 1, { { 2, -1}, } },
/* wch_ch382_2s1p*/ { 1, { { 2, -1}, } },
+ /* wch_ch384_4 */ { 1, { { 4, -1}, } },
/* sunix_2s1p */ { 1, { { 3, -1 }, } },
};
@@ -260,6 +262,7 @@ static struct pci_device_id parport_serial_pci_tbl[] = {
{ 0x4348, 0x5053, PCI_ANY_ID, PCI_ANY_ID, 0, 0, wch_ch353_1s1p},
{ 0x4348, 0x7053, 0x4348, 0x3253, 0, 0, wch_ch353_2s1p},
{ 0x1c00, 0x3250, 0x1c00, 0x3250, 0, 0, wch_ch382_2s1p},
+ { 0x1c00, 0x3470, PCI_ANY_ID, PCI_ANY_ID, 0, 0, wch_ch384_4},
/*
* More SUNIX variations. At least one of these has part number
@@ -504,6 +507,13 @@ static struct pciserial_board pci_parport_serial_boards[]
= {
.uart_offset = 8,
.first_offset = 0xC0,
},
+ [wch_ch384_4] = {
+ .flags = FL_BASE0,
+ .num_ports = 4,
+ .base_baud = 115200,
+ .uart_offset = 8,
+ .first_offset = 0xC0,
+ },
[sunix_2s1p] = {
.flags = FL_BASE0|FL_BASE_BARS,
.num_ports = 2,
--
2.16.1
