diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2018-11-20 23:52:36 +0200 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2018-12-05 07:23:15 -0700 |
| commit | 50bf7d03c26b81f8644c52c6300b6a4c47f5822c (patch) | |
| tree | bfded32941603c7a99946c5cabcbee35c05aa65f /drivers/serial | |
| parent | 4e7207791c05b3ecff916c1b1b1b21401ec29b0b (diff) | |
serial: ns16550: Provide ->getinfo() implementation
New callback will supply necessary information, for example,
to ACPI SPCR table.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/ns16550.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c index 9d78b1ffc4..f3bd8dbcdf 100644 --- a/drivers/serial/ns16550.c +++ b/drivers/serial/ns16550.c @@ -372,6 +372,25 @@ static int ns16550_serial_setconfig(struct udevice *dev, uint serial_config) return 0; } +static int ns16550_serial_getinfo(struct udevice *dev, + struct serial_device_info *info) +{ + struct NS16550 *const com_port = dev_get_priv(dev); + struct ns16550_platdata *plat = com_port->plat; + + info->type = SERIAL_CHIP_16550_COMPATIBLE; +#ifdef CONFIG_SYS_NS16550_PORT_MAPPED + info->addr_space = SERIAL_ADDRESS_SPACE_IO; +#else + info->addr_space = SERIAL_ADDRESS_SPACE_MEMORY; +#endif + info->addr = plat->base; + info->reg_width = plat->reg_width; + info->reg_shift = plat->reg_shift; + info->reg_offset = plat->reg_offset; + return 0; +} + int ns16550_serial_probe(struct udevice *dev) { struct NS16550 *const com_port = dev_get_priv(dev); @@ -479,7 +498,8 @@ const struct dm_serial_ops ns16550_serial_ops = { .pending = ns16550_serial_pending, .getc = ns16550_serial_getc, .setbrg = ns16550_serial_setbrg, - .setconfig = ns16550_serial_setconfig + .setconfig = ns16550_serial_setconfig, + .getinfo = ns16550_serial_getinfo, }; #if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA) |