[RFC PATCH 7/8] drm/rcar_du: Adapt vkms writeback to new drm_writeback_connector
Kandpal, Suraj
suraj.kandpal at intel.com
Mon Aug 11 09:47:04 UTC 2025
> > Signed-off-by: Suraj Kandpal <suraj.kandpal at intel.com>
> > ---
> > .../gpu/drm/renesas/rcar-du/rcar_du_crtc.h | 4 ++--
> > .../drm/renesas/rcar-du/rcar_du_writeback.c | 22 +++++++++++--------
> > 2 files changed, 15 insertions(+), 11 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_crtc.h
> > b/drivers/gpu/drm/renesas/rcar-du/rcar_du_crtc.h
> > index d0f38a8b3561..457c803d75bc 100644
> > --- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_crtc.h
> > +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_crtc.h
> > @@ -72,11 +72,11 @@ struct rcar_du_crtc {
> > const char *const *sources;
> > unsigned int sources_count;
> >
> > - struct drm_writeback_connector writeback;
> > + struct drm_connector connector;
>
> You forgot to update the documentation of the structure.
>
> "connector" is a too generic name. I'd keep the existing field name.
>
Sure will leave the name as writeback
> > };
> >
> > #define to_rcar_crtc(c) container_of(c, struct rcar_du_crtc,
> crtc)
> > -#define wb_to_rcar_crtc(c) container_of(c, struct rcar_du_crtc, writeback)
> > +#define connector_to_rcar_crtc(c) container_of(c, struct rcar_du_crtc,
> connector)
> >
> > /**
> > * struct rcar_du_crtc_state - Driver-specific CRTC state diff --git
> > a/drivers/gpu/drm/renesas/rcar-du/rcar_du_writeback.c
> > b/drivers/gpu/drm/renesas/rcar-du/rcar_du_writeback.c
> > index 9986a10e8114..95e6810612c2 100644
> > --- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_writeback.c
> > +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_writeback.c
> > @@ -47,10 +47,12 @@ static int rcar_du_wb_conn_get_modes(struct
> drm_connector *connector)
> > dev->mode_config.max_height); }
> >
> > -static int rcar_du_wb_prepare_job(struct drm_writeback_connector
> > *connector,
> > +static int rcar_du_wb_prepare_job(struct drm_writeback_connector
> > +*wb_connector,
> > struct drm_writeback_job *job)
> > {
> > - struct rcar_du_crtc *rcrtc = wb_to_rcar_crtc(connector);
> > + struct drm_connector *connector =
> > + container_of(wb_connector, struct drm_connector, writeback);
> > + struct rcar_du_crtc *rcrtc = connector_to_rcar_crtc(connector);
>
> Modify wb_to_rcar_crtc() instead of changing the code here and below.
>
Sure will modify that when I send this as a real series once I get the Ack for this design.
Regards,
Suraj Kandpal
> > struct rcar_du_wb_job *rjob;
> > int ret;
> >
> > @@ -72,10 +74,12 @@ static int rcar_du_wb_prepare_job(struct
> drm_writeback_connector *connector,
> > return 0;
> > }
> >
> > -static void rcar_du_wb_cleanup_job(struct drm_writeback_connector
> > *connector,
> > +static void rcar_du_wb_cleanup_job(struct drm_writeback_connector
> > +*wb_connector,
> > struct drm_writeback_job *job) {
> > - struct rcar_du_crtc *rcrtc = wb_to_rcar_crtc(connector);
> > + struct drm_connector *connector =
> > + container_of(wb_connector, struct drm_connector, writeback);
> > + struct rcar_du_crtc *rcrtc = connector_to_rcar_crtc(connector);
> > struct rcar_du_wb_job *rjob = job->priv;
> >
> > if (!job->fb)
> > @@ -199,7 +203,7 @@ static const u32 writeback_formats[] = { int
> > rcar_du_writeback_init(struct rcar_du_device *rcdu,
> > struct rcar_du_crtc *rcrtc)
> > {
> > - struct drm_writeback_connector *wb_conn = &rcrtc->writeback;
> > + struct drm_writeback_connector *wb_conn =
> > +&rcrtc->connector.writeback;
> >
> > struct drm_encoder *encoder;
> >
> > @@ -212,7 +216,7 @@ int rcar_du_writeback_init(struct rcar_du_device
> > *rcdu,
> >
> > encoder->possible_crtcs = 1 << drm_crtc_index(&rcrtc->crtc);
> >
> > - drm_connector_helper_add(&wb_conn->base,
> > + drm_connector_helper_add(&rcrtc->connector,
> > &rcar_du_wb_conn_helper_funcs);
> >
> > return drmm_writeback_connector_init(&rcdu->ddev, wb_conn, @@ -
> 231,7
> > +235,7 @@ void rcar_du_writeback_setup(struct rcar_du_crtc *rcrtc,
> > struct drm_framebuffer *fb;
> > unsigned int i;
> >
> > - state = rcrtc->writeback.base.state;
> > + state = rcrtc->connector.state;
> > if (!state || !state->writeback_job)
> > return;
> >
> > @@ -246,10 +250,10 @@ void rcar_du_writeback_setup(struct rcar_du_crtc
> *rcrtc,
> > cfg->mem[i] = sg_dma_address(rjob->sg_tables[i].sgl)
> > + fb->offsets[i];
> >
> > - drm_writeback_queue_job(&rcrtc->writeback, state);
> > + drm_writeback_queue_job(&rcrtc->connector.writeback, state);
> > }
> >
> > void rcar_du_writeback_complete(struct rcar_du_crtc *rcrtc) {
> > - drm_writeback_signal_completion(&rcrtc->writeback, 0);
> > + drm_writeback_signal_completion(&rcrtc->connector.writeback, 0);
> > }
>
> --
> Regards,
>
> Laurent Pinchart
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