drm/panel: otm8009a: No error msg if probe deferred

Do not print an error message if the regulator framework returns
EPROBE_DEFER.

Signed-off-by: Yannick Fertré <yannick.fertre@st.com>
Reviewed-by: Philippe Cornu <philippe.cornu@st.com>
Tested-by: Philippe Cornu <philippe.cornu@st.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1553155484-13460-1-git-send-email-yannick.fertre@st.com

diff --git a/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c b/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
index 58ccf648b70fbde9cbed5241e99ab8119a9af416..f67594a7e7a07b3a23448773743472e259e39649 100644 (file)
--- a/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
+++ b/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
@@ -436,7 +436,8 @@ static int otm8009a_probe(struct mipi_dsi_device *dsi)
        ctx->supply = devm_regulator_get(dev, "power");
        if (IS_ERR(ctx->supply)) {
                ret = PTR_ERR(ctx->supply);
-               dev_err(dev, "failed to request regulator: %d\n", ret);
+               if (ret != -EPROBE_DEFER)
+                       dev_err(dev, "failed to request regulator: %d\n", ret);
                return ret;
        }