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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2018-11-21 00:52:32 +0300
committerSimon Glass <sjg@chromium.org>2018-12-05 16:06:44 +0300
commitac7f5db9dc690901d99fe0afbcb3d4241c3cab8e (patch)
treeac1c22f82a9aa1b481142490623ad1aed5feb555 /drivers/serial/serial-uclass.c
parent4f86a724e82c0b74d9ffb7b65f8ae4b011dd0b03 (diff)
downloadu-boot-ac7f5db9dc690901d99fe0afbcb3d4241c3cab8e.tar.xz
dm: serial: Add ->getconfig() callback
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>
Diffstat (limited to 'drivers/serial/serial-uclass.c')
-rw-r--r--drivers/serial/serial-uclass.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c
index 3ded62732d..51ae1763fb 100644
--- a/drivers/serial/serial-uclass.c
+++ b/drivers/serial/serial-uclass.c
@@ -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