[PATCH 3/8] drm/mali: use drmm_writeback_connector_init()

[Kandpal, Suraj]

> Subject: Re: [PATCH 3/8] drm/mali: use drmm_writeback_connector_init()
> 
> 
> 
> Le 01/08/2025 à 15:51, Dmitry Baryshkov a écrit :
> > Use drmm_plain_encoder_alloc() to allocate simple encoder and
> > drmm_writeback_connector_init() in order to initialize writeback
> > connector instance.
> >
> > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at oss.qualcomm.com>

LGTM,
Reviewed-by: Suraj Kandpal <suraj.kandpal at intel.com>

> > ---
> >   drivers/gpu/drm/arm/malidp_mw.c | 25 ++++++++++++++-----------
> >   1 file changed, 14 insertions(+), 11 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/arm/malidp_mw.c
> > b/drivers/gpu/drm/arm/malidp_mw.c index
> >
> 600af5ad81b15d0c30f9f79588f40cca07437ed8..182275c0c29cd8527c85dfb3e7
> 31
> > 7561da392c46 100644
> > --- a/drivers/gpu/drm/arm/malidp_mw.c
> > +++ b/drivers/gpu/drm/arm/malidp_mw.c
> > @@ -84,11 +84,6 @@ malidp_mw_connector_detect(struct drm_connector
> *connector, bool force)
> >   	return connector_status_connected;
> >   }
> >
> > -static void malidp_mw_connector_destroy(struct drm_connector
> > *connector) -{
> > -	drm_connector_cleanup(connector);
> > -}
> > -
> >   static struct drm_connector_state *
> >   malidp_mw_connector_duplicate_state(struct drm_connector *connector)
> >   {
> > @@ -114,7 +109,6 @@ static const struct drm_connector_funcs
> malidp_mw_connector_funcs = {
> >   	.reset = malidp_mw_connector_reset,
> >   	.detect = malidp_mw_connector_detect,
> >   	.fill_modes = drm_helper_probe_single_connector_modes,
> > -	.destroy = malidp_mw_connector_destroy,
> >   	.atomic_duplicate_state = malidp_mw_connector_duplicate_state,
> >   	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
> >   };
> > @@ -211,6 +205,7 @@ static u32 *get_writeback_formats(struct malidp_drm
> *malidp, int *n_formats)
> >   int malidp_mw_connector_init(struct drm_device *drm)
> >   {
> >   	struct malidp_drm *malidp = drm_to_malidp(drm);
> > +	struct drm_encoder *encoder;
> >   	u32 *formats;
> >   	int ret, n_formats;
> >
> > @@ -224,11 +219,19 @@ int malidp_mw_connector_init(struct drm_device
> *drm)
> >   	if (!formats)
> >   		return -ENOMEM;
> >
> > -	ret = drm_writeback_connector_init(drm, &malidp->mw_connector,
> > -					   &malidp_mw_connector_funcs,
> > -
> &malidp_mw_encoder_helper_funcs,
> > -					   formats, n_formats,
> > -					   1 << drm_crtc_index(&malidp-
> >crtc));
> > +	encoder = drmm_plain_encoder_alloc(drm, NULL,
> DRM_MODE_ENCODER_VIRTUAL,
> > +					   NULL);
> > +	if (IS_ERR(encoder))
> > +		return PTR_ERR(encoder);
> > +
> > +	drm_encoder_helper_add(encoder,
> &malidp_mw_encoder_helper_funcs);
> > +
> > +	encoder->possible_crtcs = 1 << drm_crtc_index(&malidp->crtc);
> 
> drm_crtc_mask?
> 
> With this:
> 
> Reviewed-by: Louis Chauvet <louis.chauvet at bootlin.com>
> 
> > +
> > +	ret = drmm_writeback_connector_init(drm, &malidp->mw_connector,
> > +					    &malidp_mw_connector_funcs,
> > +					    encoder,
> > +					    formats, n_formats);
> >   	kfree(formats);
> >   	if (ret)
> >   		return ret;
> >
> 
> --
> Louis Chauvet, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com