Failing to toggle a GDSC as the driver core is attaching the
power-domain to a device will cause a silent probe deferral. Provide an
explicit warning to the developer, in order to reduce the amount of time
it take to debug this.

Signed-off-by: Bjorn Andersson <bjorn.anders...@linaro.org>
---
 drivers/clk/qcom/gdsc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/qcom/gdsc.c b/drivers/clk/qcom/gdsc.c
index dd63aa36b092..6a8a4996dde3 100644
--- a/drivers/clk/qcom/gdsc.c
+++ b/drivers/clk/qcom/gdsc.c
@@ -149,7 +149,9 @@ static int gdsc_toggle_logic(struct gdsc *sc, enum 
gdsc_status status)
                udelay(1);
        }
 
-       return gdsc_poll_status(sc, status);
+       ret = gdsc_poll_status(sc, status);
+       WARN(ret, "%s status stuck at 'o%s'", sc->pd.name, status ? "ff" : "n");
+       return ret;
 }
 
 static inline int gdsc_deassert_reset(struct gdsc *sc)
-- 
2.18.0

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