[PATCH v2 1/2] drivers: usb: musb: Fail if the ctrl mod register is missing

[Arnaud Ferraris]

From: Sjoerd Simons <sjoerd.simons at collabora.co.uk>

If the trcl mode register address cannot be found error out rather then
trying to continue (which cannot work)

Signed-off-by: Sjoerd Simons <sjoerd.simons at collabora.co.uk>
Signed-off-by: Adrian Ratiu <adrian.ratiu at collabora.com>
Signed-off-by: Arnaud Ferraris <arnaud.ferraris at collabora.com>
---

Changes in v2:
- squashed commits as they both affect the same code
- replaced pr_err() with dev_err()

 drivers/usb/musb-new/ti-musb.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/musb-new/ti-musb.c b/drivers/usb/musb-new/ti-musb.c
index 608facefa3..56d6134dc6 100644
--- a/drivers/usb/musb-new/ti-musb.c
+++ b/drivers/usb/musb-new/ti-musb.c
@@ -91,6 +91,11 @@ static int ti_musb_ofdata_to_platdata(struct udevice *dev)
 	phys = fdtdec_lookup_phandle(fdt, node, "phys");
 	ctrl_mod = fdtdec_lookup_phandle(fdt, phys, "ti,ctrl_mod");
 	platdata->ctrl_mod_base = (void *)fdtdec_get_addr(fdt, ctrl_mod, "reg");
+	if (platdata->ctrl_mod_base == (void *)FDT_ADDR_T_NONE) {
+		dev_err(dev, "MUSB ctrl mod missing\n");
+		return -ENOENT;
+	}
+
 	usb_index = ti_musb_get_usb_index(node);
 	switch (usb_index) {
 	case 1:
-- 
2.26.2