Re: [PATCH 2/2] drm/rockchip: lvds: Hide scary error messages on probe deferral

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Am Freitag, 28. Februar 2025, 18:42:32 MEZ schrieb Quentin Schulz:
> Hi Heiko,
> 
> On 2/28/25 5:57 PM, Heiko Stuebner wrote:
> > From: Heiko Stuebner <heiko.stuebner@xxxxxxxxx>
> > 
> > Commit 52d11c863ac9 ("drm/rockchip: lvds: do not print scary message when
> > probing defer") already started hiding scary messages that are not relevant
> > if the requested supply just returned EPROBE_DEFER, but there are more
> > possible sources - like the phy.
> > 
> > So modernize the whole logging in the probe path by replacing the
> > remaining deprecated DRM_DEV_ERROR with appropriate dev_err(_probe)
> > and drm_err calls.
> > 
> > The distinction here is that all messages talking about mishaps of the
> > lvds element use dev_err(_probe) while messages caused by interaction
> > with the main Rockchip drm-device use drm_err.
> > 
> > Signed-off-by: Heiko Stuebner <heiko.stuebner@xxxxxxxxx>

> > @@ -604,8 +602,8 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master,
> >   
> >   	ret = drm_simple_encoder_init(drm_dev, encoder, DRM_MODE_ENCODER_LVDS);
> >   	if (ret < 0) {
> > -		DRM_DEV_ERROR(drm_dev->dev,
> > -			      "failed to initialize encoder: %d\n", ret);
> > +		drm_err(drm_dev,
> > +			"failed to initialize encoder: %d\n", ret);
> 
> All the above are using dev_err, but starting here, it's drm_err, is 
> that on purpose?

The last paragraph of the commit message was supposed to explain that
(which it seemingly did poorly :-) ) :

> > The distinction here is that all messages talking about mishaps of the
> > lvds element use dev_err(_probe) while messages caused by interaction
> > with the main Rockchip drm-device use drm_err.






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