dm: serial: Introduce ->getinfo() callback
New callback will give a necessary information to fill up ACPI SPCR table,
for example. Maybe used later for other purposes.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Change ADR_SPACE_SYSTEM_IO to SERIAL_ADDRESS_SPACE_IO to fix build error:
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/serial/sandbox.c b/drivers/serial/sandbox.c
index 76d26d3..33102fc 100644
--- a/drivers/serial/sandbox.c
+++ b/drivers/serial/sandbox.c
@@ -188,6 +188,26 @@
return 0;
}
+static int sandbox_serial_getinfo(struct udevice *dev,
+ struct serial_device_info *serial_info)
+{
+ struct serial_device_info info = {
+ .type = SERIAL_CHIP_UNKNOWN,
+ .addr_space = SERIAL_ADDRESS_SPACE_IO,
+ .addr = SERIAL_DEFAULT_ADDRESS,
+ .reg_width = 1,
+ .reg_offset = 0,
+ .reg_shift = 0,
+ };
+
+ if (!serial_info)
+ return -EINVAL;
+
+ *serial_info = info;
+
+ return 0;
+}
+
#if CONFIG_IS_ENABLED(OF_CONTROL)
static const char * const ansi_colour[] = {
"black", "red", "green", "yellow", "blue", "megenta", "cyan",
@@ -221,6 +241,7 @@
.getc = sandbox_serial_getc,
.getconfig = sandbox_serial_getconfig,
.setconfig = sandbox_serial_setconfig,
+ .getinfo = sandbox_serial_getinfo,
};
static const struct udevice_id sandbox_serial_ids[] = {
diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c
index 51ae176..ffcd6d1 100644
--- a/drivers/serial/serial-uclass.c
+++ b/drivers/serial/serial-uclass.c
@@ -322,6 +322,25 @@
return 0;
}
+int serial_getinfo(struct serial_device_info *info)
+{
+ struct dm_serial_ops *ops;
+
+ if (!gd->cur_serial_dev)
+ return -ENODEV;
+
+ if (!info)
+ return -EINVAL;
+
+ info->baudrate = gd->baudrate;
+
+ ops = serial_get_ops(gd->cur_serial_dev);
+ if (ops->getinfo)
+ return ops->getinfo(gd->cur_serial_dev, info);
+
+ return -EINVAL;
+}
+
void serial_stdio_init(void)
{
}
@@ -441,6 +460,8 @@
if (ops->loop)
ops->loop += gd->reloc_off;
#endif
+ if (ops->getinfo)
+ ops->getinfo += gd->reloc_off;
#endif
/* Set the baud rate */
if (ops->setbrg) {