Hi Laurent, Thanks for the feedback. > Subject: Re: [PATCH 2/2] drm: rcar-du: Use %p4cc to print 4CC format > > Hi Biju, > > Thank you for the patch. > > On Thu, Aug 25, 2022 at 11:39:05AM +0100, Biju Das wrote: > > Replace use of struct rcar_du_format_info with %p4cc for printing 4CC > > formats. > > The code change looks good, but doesn't match the commit message. You're > not replacing usage of struct rcar_du_format_info. I propose the > following commit message: > > Use the %p4cc format specifier to print 4CCs, which will provide a more > readable message than the raw hex value. OK. > > > Reported-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> > > Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx> > > --- > > drivers/gpu/drm/rcar-du/rcar_du_kms.c | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c > > b/drivers/gpu/drm/rcar-du/rcar_du_kms.c > > index 21881fb5e84a..8c2719efda2a 100644 > > --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c > > +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c > > @@ -405,8 +405,8 @@ rcar_du_fb_create(struct drm_device *dev, struct > > drm_file *file_priv, > > > > format = rcar_du_format_info(mode_cmd->pixel_format); > > if (format == NULL) { > > - dev_dbg(dev->dev, "unsupported pixel format %08x\n", > > - mode_cmd->pixel_format); > > + dev_dbg(dev->dev, "unsupported pixel format %p4cc\n", > > + &mode_cmd->pixel_format); > > return ERR_PTR(-EINVAL); > > } > > > > There are two other occurrences: > > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c > b/drivers/gpu/drm/rcar-du/rcar_du_plane.c > index 26b25ca58968..83631ee2fff1 100644 > --- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c > +++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c > @@ -626,8 +626,8 @@ int __rcar_du_plane_atomic_check(struct drm_plane > *plane, > > *format = rcar_du_format_info(state->fb->format->format); > if (*format == NULL) { > - dev_dbg(dev->dev, "%s: unsupported format %08x\n", __func__, > - state->fb->format->format); > + dev_dbg(dev->dev, "%s: unsupported format %p4cc\n", > __func__, > + &state->fb->format->format); > return -EINVAL; > } > > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_writeback.c > b/drivers/gpu/drm/rcar-du/rcar_du_writeback.c > index 25f50a297c11..8cd37d7b8ae2 100644 > --- a/drivers/gpu/drm/rcar-du/rcar_du_writeback.c > +++ b/drivers/gpu/drm/rcar-du/rcar_du_writeback.c > @@ -166,8 +166,8 @@ static int rcar_du_wb_enc_atomic_check(struct > drm_encoder *encoder, > > wb_state->format = rcar_du_format_info(fb->format->format); > if (wb_state->format == NULL) { > - dev_dbg(dev->dev, "%s: unsupported format %08x\n", __func__, > - fb->format->format); > + dev_dbg(dev->dev, "%s: unsupported format %p4cc\n", > __func__, > + &fb->format->format); > return -EINVAL; > } > > I can add these changes to the patch and update the commit message when > applying if you're fine with that. In that case, I am ok with it. Is it possible for you to share the git tree with latest RCar DU changes? so that I can rebase RCar DU lib and RZ/G2L DU work on top of that. Currently I am rebasing on top of drm_tip. Please let me know. Thanks and regards, Biju > > Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> >