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dm: serial: Add ->getconfig() callback

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In some cases it would be good to know the settings, such as parity,
of current serial console. One example might be an ACPI SPCR table
to generate using these parameters.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Andy Shevchenko
2018-11-20 23:52:32 +02:00
committed by Simon Glass
parent 4f86a724e8
commit ac7f5db9dc
5 changed files with 60 additions and 3 deletions
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16
drivers/serial/serial-uclass.c
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@@ -294,6 +294,20 @@ void serial_setbrg(void)
ops->setbrg(gd->cur_serial_dev, gd->baudrate);
}
int serial_getconfig(uint *config)
{
struct dm_serial_ops *ops;
if (!gd->cur_serial_dev)
return 0;
ops = serial_get_ops(gd->cur_serial_dev);
if (ops->getconfig)
return ops->getconfig(gd->cur_serial_dev, config);
return 0;
}
int serial_setconfig(uint config)
{
struct dm_serial_ops *ops;
@@ -419,6 +433,8 @@ static int serial_post_probe(struct udevice *dev)
ops->pending += gd->reloc_off;
if (ops->clear)
ops->clear += gd->reloc_off;
if (ops->getconfig)
ops->getconfig += gd->reloc_off;
if (ops->setconfig)
ops->setconfig += gd->reloc_off;
#if CONFIG_POST & CONFIG_SYS_POST_UART