[U-Boot] [PATCH 1/5] drivers: usb: musb: Fail if the ctrl mod register is missing
Adrian Ratiu
adrian.ratiu at collabora.com
Tue Feb 12 17:05:18 UTC 2019
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>
---
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 20ca2731b49..725086928b3 100644
--- a/drivers/usb/musb-new/ti-musb.c
+++ b/drivers/usb/musb-new/ti-musb.c
@@ -90,6 +90,11 @@ 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 == FDT_ADDR_T_NONE) {
+ pr_err("MUSB ctrl mod missing\n");
+ return -ENOENT;
+ }
+
usb_index = ti_musb_get_usb_index(node);
switch (usb_index) {
case 1:
--
2.20.1
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