serial: pl01x: expose skip_init platdata option in DT

To be able to represent the skip-init platdata element with OF_CONTROL,
it needs to be read from the device tree as well and put into the platform data.

Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Fabian Vogt <fvogt@suse.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/doc/device-tree-bindings/serial/pl01x.txt b/doc/device-tree-bindings/serial/pl01x.txt
index 61c27d1..017b1e2 100644 (file)
--- a/doc/device-tree-bindings/serial/pl01x.txt
+++ b/doc/device-tree-bindings/serial/pl01x.txt
@@ -5,3 +5,6 @@ Required properties:
 - reg: exactly one register range with length 0x1000
 - clock: input clock frequency for the UART (used to calculate the baud
   rate divisor)
+
+Optional properties:
+- skip-init: if present, the baud rate divisor is not changed

diff --git a/drivers/serial/serial_pl01x.c b/drivers/serial/serial_pl01x.c
index 6f83835..a8d3d67 100644 (file)
--- a/drivers/serial/serial_pl01x.c
+++ b/drivers/serial/serial_pl01x.c
@@ -356,6 +356,8 @@ static int pl01x_serial_ofdata_to_platdata(struct udevice *dev)
        plat->base = addr;
        plat->clock = fdtdec_get_int(gd->fdt_blob, dev->of_offset, "clock", 1);
        plat->type = dev_get_driver_data(dev);
+       plat->skip_init = fdtdec_get_bool(gd->fdt_blob, dev->of_offset,
+                                         "skip-init");
        return 0;
 }
 #endif