[PATCH] drm/rockchip: dw_hdmi: filter regulator -EPROBE_DEFER error messages

Aurelien Jarno
2022-09-26T20:38:56Z

When the avdd-0v9 or avdd-1v8 supply are not yet available, EPROBE_DEFER
is returned by rockchip_hdmi_parse_dt(). This causes the following error
message to be printed multiple times:

dwhdmi-rockchip fe0a0000.hdmi: [drm:dw_hdmi_rockchip_bind [rockchipdrm]] *ERROR* Unable to parse OF data

Fix that by not printing the message when rockchip_hdmi_parse_dt()
returns -EPROBE_DEFER.

Fixes: ca80c4eb4b01 ("drm/rockchip: dw_hdmi: add regulator support")
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index c14f88893868..2f4b8f64cbad 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -565,7 +565,8 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master,

ret = rockchip_hdmi_parse_dt(hdmi);
if (ret) {
- DRM_DEV_ERROR(hdmi->dev, "Unable to parse OF data\n");
+ if (ret != -EPROBE_DEFER)
+ DRM_DEV_ERROR(hdmi->dev, "Unable to parse OF data\n");
return ret;
}

--
2.35.1