[PATCH] serial: 8250_pci: Merge 8250_moxa to 8250_pci

From: Kai-Heng Feng
Date: Fri Aug 16 2019 - 12:51:37 EST

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Moxa serial boards only need a special setup function, we can use
generic 8250 framework for other parts.

So let's merge 8250_moxa to 8250_pci.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
---
drivers/tty/serial/8250/8250_moxa.c | 155 ----------------------------
drivers/tty/serial/8250/8250_pci.c | 113 +++++++++++++++++---
drivers/tty/serial/8250/Kconfig | 10 --
drivers/tty/serial/8250/Makefile | 1 -
4 files changed, 99 insertions(+), 180 deletions(-)
delete mode 100644 drivers/tty/serial/8250/8250_moxa.c

diff --git a/drivers/tty/serial/8250/8250_moxa.c b/drivers/tty/serial/8250/8250_moxa.c
deleted file mode 100644
index 1ee4cd94d4fa..000000000000
--- a/drivers/tty/serial/8250/8250_moxa.c
+++ /dev/null
@@ -1,155 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * 8250_moxa.c - MOXA Smartio/Industio MUE multiport serial driver.
- *
- * Author: Mathieu OTHACEHE <m.othacehe@xxxxxxxxx>
- */
-
-#include <linux/module.h>
-#include <linux/pci.h>
-
-#include "8250.h"
-
-#define PCI_DEVICE_ID_MOXA_CP102E 0x1024
-#define PCI_DEVICE_ID_MOXA_CP102EL 0x1025
-#define PCI_DEVICE_ID_MOXA_CP104EL_A 0x1045
-#define PCI_DEVICE_ID_MOXA_CP114EL 0x1144
-#define PCI_DEVICE_ID_MOXA_CP116E_A_A 0x1160
-#define PCI_DEVICE_ID_MOXA_CP116E_A_B 0x1161
-#define PCI_DEVICE_ID_MOXA_CP118EL_A 0x1182
-#define PCI_DEVICE_ID_MOXA_CP118E_A_I 0x1183
-#define PCI_DEVICE_ID_MOXA_CP132EL 0x1322
-#define PCI_DEVICE_ID_MOXA_CP134EL_A 0x1342
-#define PCI_DEVICE_ID_MOXA_CP138E_A 0x1381
-#define PCI_DEVICE_ID_MOXA_CP168EL_A 0x1683
-
-#define MOXA_BASE_BAUD 921600
-#define MOXA_UART_OFFSET 0x200
-#define MOXA_BASE_BAR 1
-
-struct moxa8250_board {
- unsigned int num_ports;
- int line[0];
-};
-
-enum {
- moxa8250_2p = 0,
- moxa8250_4p,
- moxa8250_8p
-};
-
-static struct moxa8250_board moxa8250_boards[] = {
- [moxa8250_2p] = { .num_ports = 2},
- [moxa8250_4p] = { .num_ports = 4},
- [moxa8250_8p] = { .num_ports = 8},
-};
-
-static int moxa8250_probe(struct pci_dev *pdev, const struct pci_device_id *id)
-{
- struct uart_8250_port uart;
- struct moxa8250_board *brd;
- void __iomem *ioaddr;
- resource_size_t baseaddr;
- unsigned int i, nr_ports;
- unsigned int offset;
- int ret;
-
- brd = &moxa8250_boards[id->driver_data];
- nr_ports = brd->num_ports;
-
- ret = pcim_enable_device(pdev);
- if (ret)
- return ret;
-
- brd = devm_kzalloc(&pdev->dev, sizeof(struct moxa8250_board) +
- sizeof(unsigned int) * nr_ports, GFP_KERNEL);
- if (!brd)
- return -ENOMEM;
- brd->num_ports = nr_ports;
-
- memset(&uart, 0, sizeof(struct uart_8250_port));
-
- uart.port.dev = &pdev->dev;
- uart.port.irq = pdev->irq;
- uart.port.uartclk = MOXA_BASE_BAUD * 16;
- uart.port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
-
- baseaddr = pci_resource_start(pdev, MOXA_BASE_BAR);
- ioaddr = pcim_iomap(pdev, MOXA_BASE_BAR, 0);
- if (!ioaddr)
- return -ENOMEM;
-
- for (i = 0; i < nr_ports; i++) {
-
- /*
- * MOXA Smartio MUE boards with 4 ports have
- * a different offset for port #3
- */
- if (nr_ports == 4 && i == 3)
- offset = 7 * MOXA_UART_OFFSET;
- else
- offset = i * MOXA_UART_OFFSET;
-
- uart.port.iotype = UPIO_MEM;
- uart.port.iobase = 0;
- uart.port.mapbase = baseaddr + offset;
- uart.port.membase = ioaddr + offset;
- uart.port.regshift = 0;
-
- dev_dbg(&pdev->dev, "Setup PCI port: port %lx, irq %d, type %d\n",
- uart.port.iobase, uart.port.irq, uart.port.iotype);
-
- brd->line[i] = serial8250_register_8250_port(&uart);
- if (brd->line[i] < 0) {
- dev_err(&pdev->dev,
- "Couldn't register serial port %lx, irq %d, type %d, error %d\n",
- uart.port.iobase, uart.port.irq,
- uart.port.iotype, brd->line[i]);
- break;
- }
- }
-
- pci_set_drvdata(pdev, brd);
- return 0;
-}
-
-static void moxa8250_remove(struct pci_dev *pdev)
-{
- struct moxa8250_board *brd = pci_get_drvdata(pdev);
- unsigned int i;
-
- for (i = 0; i < brd->num_ports; i++)
- serial8250_unregister_port(brd->line[i]);
-}
-
-#define MOXA_DEVICE(id, data) { PCI_VDEVICE(MOXA, id), (kernel_ulong_t)data }
-
-static const struct pci_device_id pci_ids[] = {
- MOXA_DEVICE(PCI_DEVICE_ID_MOXA_CP102E, moxa8250_2p),
- MOXA_DEVICE(PCI_DEVICE_ID_MOXA_CP102EL, moxa8250_2p),
- MOXA_DEVICE(PCI_DEVICE_ID_MOXA_CP104EL_A, moxa8250_4p),
- MOXA_DEVICE(PCI_DEVICE_ID_MOXA_CP114EL, moxa8250_4p),
- MOXA_DEVICE(PCI_DEVICE_ID_MOXA_CP116E_A_A, moxa8250_8p),
- MOXA_DEVICE(PCI_DEVICE_ID_MOXA_CP116E_A_B, moxa8250_8p),
- MOXA_DEVICE(PCI_DEVICE_ID_MOXA_CP118EL_A, moxa8250_8p),
- MOXA_DEVICE(PCI_DEVICE_ID_MOXA_CP118E_A_I, moxa8250_8p),
- MOXA_DEVICE(PCI_DEVICE_ID_MOXA_CP132EL, moxa8250_2p),
- MOXA_DEVICE(PCI_DEVICE_ID_MOXA_CP134EL_A, moxa8250_4p),
- MOXA_DEVICE(PCI_DEVICE_ID_MOXA_CP138E_A, moxa8250_8p),
- MOXA_DEVICE(PCI_DEVICE_ID_MOXA_CP168EL_A, moxa8250_8p),
- {0}
-};
-MODULE_DEVICE_TABLE(pci, pci_ids);
-
-static struct pci_driver moxa8250_pci_driver = {
- .name = "8250_moxa",
- .id_table = pci_ids,
- .probe = moxa8250_probe,
- .remove = moxa8250_remove,
-};
-
-module_pci_driver(moxa8250_pci_driver);
-
-MODULE_AUTHOR("Mathieu OTHACEHE");
-MODULE_DESCRIPTION("MOXA SmartIO MUE driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index c0d10a35bf70..76d58bddeb06 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1827,6 +1827,22 @@ pci_sunix_setup(struct serial_private *priv,
return setup_port(priv, port, bar, offset, 0);
}

+static int
+pci_moxa_setup(struct serial_private *priv,
+ const struct pciserial_board *board,
+ struct uart_8250_port *port, int idx)
+{
+ unsigned int bar = FL_GET_BASE(board->flags);
+ int offset;
+
+ if (board->num_ports == 4 && idx == 3)
+ offset = 7 * board->uart_offset;
+ else
+ offset = idx * board->uart_offset;
+
+ return setup_port(priv, port, bar, offset, 0);
+}
+
#define PCI_VENDOR_ID_SBSMODULARIO 0x124B
#define PCI_SUBVENDOR_ID_SBSMODULARIO 0x124B
#define PCI_DEVICE_ID_OCTPRO 0x0001
@@ -1931,6 +1947,18 @@ pci_sunix_setup(struct serial_private *priv,
#define PCIE_DEVICE_ID_NI_PXIE8431_4858 0x74C4
#define PCIE_DEVICE_ID_NI_PXIE8431_48516 0x74C3

+#define PCI_DEVICE_ID_MOXA_CP102E 0x1024
+#define PCI_DEVICE_ID_MOXA_CP102EL 0x1025
+#define PCI_DEVICE_ID_MOXA_CP104EL_A 0x1045
+#define PCI_DEVICE_ID_MOXA_CP114EL 0x1144
+#define PCI_DEVICE_ID_MOXA_CP116E_A_A 0x1160
+#define PCI_DEVICE_ID_MOXA_CP116E_A_B 0x1161
+#define PCI_DEVICE_ID_MOXA_CP118EL_A 0x1182
+#define PCI_DEVICE_ID_MOXA_CP118E_A_I 0x1183
+#define PCI_DEVICE_ID_MOXA_CP132EL 0x1322
+#define PCI_DEVICE_ID_MOXA_CP134EL_A 0x1342
+#define PCI_DEVICE_ID_MOXA_CP138E_A 0x1381
+#define PCI_DEVICE_ID_MOXA_CP168EL_A 0x1683

/* Unknown vendors/cards - this should not be in linux/pci_ids.h */
#define PCI_SUBDEVICE_ID_UNKNOWN_0x1584 0x1584
@@ -2781,6 +2809,16 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.setup = pci_fintek_setup,
.init = pci_fintek_init,
},
+ /*
+ * MOXA
+ */
+ {
+ .vendor = PCI_VENDOR_ID_MOXA,
+ .device = PCI_ANY_ID,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .setup = pci_moxa_setup,
+ },

/*
* Default "match everything" terminator entry
@@ -2987,6 +3025,9 @@ enum pci_board_num_t {
pbn_sunix_pci_4s,
pbn_sunix_pci_8s,
pbn_sunix_pci_16s,
+ pbn_moxa8250_2p,
+ pbn_moxa8250_4p,
+ pbn_moxa8250_8p,
};

/*
@@ -3798,6 +3839,24 @@ static struct pciserial_board pci_boards[] = {
.base_baud = 921600,
.uart_offset = 0x8,
},
+ [pbn_moxa8250_2p] = {
+ .flags = FL_BASE1,
+ .num_ports = 2,
+ .base_baud = 921600,
+ .uart_offset = 0x200,
+ },
+ [pbn_moxa8250_4p] = {
+ .flags = FL_BASE1,
+ .num_ports = 4,
+ .base_baud = 921600,
+ .uart_offset = 0x200,
+ },
+ [pbn_moxa8250_8p] = {
+ .flags = FL_BASE1,
+ .num_ports = 8,
+ .base_baud = 921600,
+ .uart_offset = 0x200,
+ },
};

static const struct pci_device_id blacklist[] = {
@@ -3811,20 +3870,6 @@ static const struct pci_device_id blacklist[] = {
{ PCI_DEVICE(0x4348, 0x5053), }, /* WCH CH353 1S1P */
{ PCI_DEVICE(0x1c00, 0x3250), }, /* WCH CH382 2S1P */

- /* Moxa Smartio MUE boards handled by 8250_moxa */
- { PCI_VDEVICE(MOXA, 0x1024), },
- { PCI_VDEVICE(MOXA, 0x1025), },
- { PCI_VDEVICE(MOXA, 0x1045), },
- { PCI_VDEVICE(MOXA, 0x1144), },
- { PCI_VDEVICE(MOXA, 0x1160), },
- { PCI_VDEVICE(MOXA, 0x1161), },
- { PCI_VDEVICE(MOXA, 0x1182), },
- { PCI_VDEVICE(MOXA, 0x1183), },
- { PCI_VDEVICE(MOXA, 0x1322), },
- { PCI_VDEVICE(MOXA, 0x1342), },
- { PCI_VDEVICE(MOXA, 0x1381), },
- { PCI_VDEVICE(MOXA, 0x1683), },
-
/* Intel platforms with MID UART */
{ PCI_VDEVICE(INTEL, 0x081b), },
{ PCI_VDEVICE(INTEL, 0x081c), },
@@ -5407,6 +5452,46 @@ static const struct pci_device_id serial_pci_tbl[] = {
PCI_ANY_ID, PCI_ANY_ID, 0, 0,
pbn_ni8431_4 },

+ /*
+ * MOXA
+ */
+ { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102E,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_moxa8250_2p },
+ { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102EL,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_moxa8250_2p },
+ { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104EL_A,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_moxa8250_4p },
+ { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP114EL,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_moxa8250_4p },
+ { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP116E_A_A,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_moxa8250_8p },
+ { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP116E_A_B,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_moxa8250_8p },
+ { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP118EL_A,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_moxa8250_8p },
+ { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP118E_A_I,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_moxa8250_8p },
+ { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132EL,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_moxa8250_2p },
+ { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP134EL_A,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_moxa8250_4p },
+ { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP138E_A,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_moxa8250_8p },
+ { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP168EL_A,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_moxa8250_8p },
+
/*
* ADDI-DATA GmbH communication cards <info@xxxxxxxxxxxxx>
*/
diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
index ff5d142bbd70..7ef60f8b6e2c 100644
--- a/drivers/tty/serial/8250/Kconfig
+++ b/drivers/tty/serial/8250/Kconfig
@@ -468,16 +468,6 @@ config SERIAL_8250_MID
present on the UART found on Intel Medfield SOC and various other
Intel platforms.

-config SERIAL_8250_MOXA
- tristate "MOXA SmartIO MUE support"
- depends on SERIAL_8250 && PCI
- help
- Say Y here if you have a Moxa SmartIO MUE multiport serial card.
- If unsure, say N.
-
- This driver can also be built as a module. The module will be called
- 8250_moxa. If you want to do that, say M here.
-
config SERIAL_8250_PXA
tristate "PXA serial port support"
depends on SERIAL_8250
diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile
index 9b451d81588b..08c1d8117506 100644
--- a/drivers/tty/serial/8250/Makefile
+++ b/drivers/tty/serial/8250/Makefile
@@ -35,7 +35,6 @@ obj-$(CONFIG_SERIAL_8250_UNIPHIER) += 8250_uniphier.o
obj-$(CONFIG_SERIAL_8250_INGENIC) += 8250_ingenic.o
obj-$(CONFIG_SERIAL_8250_LPSS) += 8250_lpss.o
obj-$(CONFIG_SERIAL_8250_MID) += 8250_mid.o
-obj-$(CONFIG_SERIAL_8250_MOXA) += 8250_moxa.o
obj-$(CONFIG_SERIAL_8250_PXA) += 8250_pxa.o
obj-$(CONFIG_SERIAL_OF_PLATFORM) += 8250_of.o

--
2.17.1

Next message: Uwe Kleine-König: "Re: [PATCH v3 2/4] backlight: Expose brightness curve type through sysfs"
Previous message: Andreas Kemnade: "[PATCH] gpio: of: fix Freescale SPI CS quirk handling"
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