diff options
| author |  Parker Newman <pnewman@connecttech.com>
| 2024-04-17 16:31:25 -0400 |
|---|---|---|
| committer |  Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| 2024-04-18 08:23:50 +0200 |
| commit | 393b520a99b21d9ec6d4bb32e7c05bbb4f6dc777 (patch) | |
| tree | e21c4bcb42ede0e7c9f66dec234949cbb5744468 /drivers/tty | |
| parent | serial: exar: added a exar_get_nr_ports function (diff) | |
| download | linux-393b520a99b21d9ec6d4bb32e7c05bbb4f6dc777.tar.gz linux-393b520a99b21d9ec6d4bb32e7c05bbb4f6dc777.tar.bz2 linux-393b520a99b21d9ec6d4bb32e7c05bbb4f6dc777.zip | |
serial: exar: add optional board_init function
Add an optional "board_init()" function pointer to struct exar8250_board
which is called once during probe prior to setting up the ports. It will
be used in subsequent patches of this series.
Signed-off-by: Parker Newman <pnewman@connecttech.com>
Link: https://lore.kernel.org/r/0e72a3154114c733283ff273bc1e31456ee101f4.1713382717.git.pnewman@connecttech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/8250/8250_exar.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c index 72385c7d2eda..f14f73d250bb 100644 --- a/drivers/tty/serial/8250/8250_exar.c +++ b/drivers/tty/serial/8250/8250_exar.c @@ -177,12 +177,14 @@ struct exar8250_platform { * struct exar8250_board - board information * @num_ports: number of serial ports * @reg_shift: describes UART register mapping in PCI memory - * @setup: quirk run at ->probe() stage + * @board_init: quirk run once at ->probe() stage before setting up ports + * @setup: quirk run at ->probe() stage for each port * @exit: quirk run at ->remove() stage */ struct exar8250_board { unsigned int num_ports; unsigned int reg_shift; + int (*board_init)(struct exar8250 *priv, struct pci_dev *pcidev); int (*setup)(struct exar8250 *, struct pci_dev *, struct uart_8250_port *, int); void (*exit)(struct pci_dev *pcidev); @@ -773,6 +775,15 @@ exar_pci_probe(struct pci_dev *pcidev, const struct pci_device_id *ent) if (rc) return rc; + if (board->board_init) { + rc = board->board_init(priv, pcidev); + if (rc) { + dev_err_probe(&pcidev->dev, rc, + "failed to init serial board\n"); + return rc; + } + } + for (i = 0; i < nr_ports && i < maxnr; i++) { rc = board->setup(priv, pcidev, &uart, i); if (rc) { |