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Message-ID: <DM3PPF208195D8D03E1F9D3E7EB4D07C1D6E326A@DM3PPF208195D8D.namprd11.prod.outlook.com>
Date: Fri, 1 Aug 2025 14:22:24 +0000
From: "Kandpal, Suraj" <suraj.kandpal@...el.com>
To: Louis Chauvet <louis.chauvet@...tlin.com>, Dmitry Baryshkov
<dmitry.baryshkov@....qualcomm.com>, Jani Nikula
<jani.nikula@...ux.intel.com>, Harry Wentland <harry.wentland@....com>, "Leo
Li" <sunpeng.li@....com>, Rodrigo Siqueira <siqueira@...lia.com>, "Alex
Deucher" <alexander.deucher@....com>, Christian König
<christian.koenig@....com>, David Airlie <airlied@...il.com>, Simona Vetter
<simona@...ll.ch>, Liviu Dudau <liviu.dudau@....com>, Maarten Lankhorst
<maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>, Rob Clark
<robin.clark@....qualcomm.com>, Dmitry Baryshkov <lumag@...nel.org>, "Abhinav
Kumar" <abhinav.kumar@...ux.dev>, Jessica Zhang
<jessica.zhang@....qualcomm.com>, Sean Paul <sean@...rly.run>, Marijn Suijten
<marijn.suijten@...ainline.org>, Laurent Pinchart
<laurent.pinchart+renesas@...asonboard.com>, Tomi Valkeinen
<tomi.valkeinen+renesas@...asonboard.com>, Kieran Bingham
<kieran.bingham+renesas@...asonboard.com>, Geert Uytterhoeven
<geert+renesas@...der.be>, Magnus Damm <magnus.damm@...il.com>, "Dave
Stevenson" <dave.stevenson@...pberrypi.com>, Maíra Canal
<mcanal@...lia.com>, Raspberry Pi Kernel Maintenance
<kernel-list@...pberrypi.com>
CC: "amd-gfx@...ts.freedesktop.org" <amd-gfx@...ts.freedesktop.org>,
"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
"freedreno@...ts.freedesktop.org" <freedreno@...ts.freedesktop.org>,
"linux-renesas-soc@...r.kernel.org" <linux-renesas-soc@...r.kernel.org>
Subject: RE: [PATCH 7/8] drm: writeback: drop excess connector initialization
functions
> Subject: Re: [PATCH 7/8] drm: writeback: drop excess connector initialization
> functions
This should be drm/writeback
Regards,
Suraj Kandpal
>
>
>
> Le 01/08/2025 à 15:51, Dmitry Baryshkov a écrit :
> > Now as all drivers have been converted to
> > drmm_writeback_connector_init(), drop drm_writeback_connector_init()
> > and drm_writeback_connector::encoder field, they are unused now.
> >
> > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
>
> Reviewed-by: Louis Chauvet <louis.chauvet@...tlin.com>
>
> > ---
> > drivers/gpu/drm/drm_writeback.c | 55 -----------------------------------------
> > include/drm/drm_writeback.h | 18 --------------
> > 2 files changed, 73 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/drm_writeback.c
> > b/drivers/gpu/drm/drm_writeback.c index
> >
> 95b8a2e4bda69230591b50be15d14d0b3692373b..1a01df91b2c5868e158d489
> b782f
> > 4c57c61a272c 100644
> > --- a/drivers/gpu/drm/drm_writeback.c
> > +++ b/drivers/gpu/drm/drm_writeback.c
> > @@ -142,61 +142,6 @@ static int create_writeback_properties(struct
> drm_device *dev)
> > return 0;
> > }
> >
> > -static const struct drm_encoder_funcs drm_writeback_encoder_funcs = {
> > - .destroy = drm_encoder_cleanup,
> > -};
> > -
> > -/**
> > - * drm_writeback_connector_init - Initialize a writeback connector
> > and its properties
> > - * @dev: DRM device
> > - * @wb_connector: Writeback connector to initialize
> > - * @con_funcs: Connector funcs vtable
> > - * @enc_helper_funcs: Encoder helper funcs vtable to be used by the
> > internal encoder
> > - * @formats: Array of supported pixel formats for the writeback
> > engine
> > - * @n_formats: Length of the formats array
> > - * @possible_crtcs: possible crtcs for the internal writeback encoder
> > - *
> > - * This function creates the writeback-connector-specific properties
> > if they
> > - * have not been already created, initializes the connector as
> > - * type DRM_MODE_CONNECTOR_WRITEBACK, and correctly initializes the
> > property
> > - * values. It will also create an internal encoder associated with
> > the
> > - * drm_writeback_connector and set it to use the @enc_helper_funcs
> > vtable for
> > - * the encoder helper.
> > - *
> > - * Drivers should always use this function instead of
> > drm_connector_init() to
> > - * set up writeback connectors.
> > - *
> > - * Returns: 0 on success, or a negative error code
> > - */
> > -int drm_writeback_connector_init(struct drm_device *dev,
> > - struct drm_writeback_connector
> *wb_connector,
> > - const struct drm_connector_funcs
> *con_funcs,
> > - const struct drm_encoder_helper_funcs
> *enc_helper_funcs,
> > - const u32 *formats, int n_formats,
> > - u32 possible_crtcs)
> > -{
> > - int ret = 0;
> > -
> > - drm_encoder_helper_add(&wb_connector->encoder,
> enc_helper_funcs);
> > -
> > - wb_connector->encoder.possible_crtcs = possible_crtcs;
> > -
> > - ret = drm_encoder_init(dev, &wb_connector->encoder,
> > - &drm_writeback_encoder_funcs,
> > - DRM_MODE_ENCODER_VIRTUAL, NULL);
> > - if (ret)
> > - return ret;
> > -
> > - ret = drm_writeback_connector_init_with_encoder(dev,
> wb_connector, &wb_connector->encoder,
> > - con_funcs, formats, n_formats);
> > -
> > - if (ret)
> > - drm_encoder_cleanup(&wb_connector->encoder);
> > -
> > - return ret;
> > -}
> > -EXPORT_SYMBOL(drm_writeback_connector_init);
> > -
> > static void delete_writeback_properties(struct drm_device *dev)
> > {
> > if (dev->mode_config.writeback_pixel_formats_property) { diff --git
> > a/include/drm/drm_writeback.h b/include/drm/drm_writeback.h index
> >
> c380a7b8f55a3616fa070c037d5cc653b0061fe6..879ca103320cc225ffb36874190
> 8
> > 8361315535fc 100644
> > --- a/include/drm/drm_writeback.h
> > +++ b/include/drm/drm_writeback.h
> > @@ -24,17 +24,6 @@ struct drm_writeback_connector {
> > */
> > struct drm_connector base;
> >
> > - /**
> > - * @encoder: Internal encoder used by the connector to fulfill
> > - * the DRM framework requirements. The users of the
> > - * @drm_writeback_connector control the behaviour of the @encoder
> > - * by passing the @enc_funcs parameter to
> drm_writeback_connector_init()
> > - * function.
> > - * For users of drm_writeback_connector_init_with_encoder(), this
> field
> > - * is not valid as the encoder is managed within their drivers.
> > - */
> > - struct drm_encoder encoder;
> > -
> > /**
> > * @pixel_formats_blob_ptr:
> > *
> > @@ -148,13 +137,6 @@ drm_connector_to_writeback(struct drm_connector
> *connector)
> > return container_of(connector, struct drm_writeback_connector, base);
> > }
> >
> > -int drm_writeback_connector_init(struct drm_device *dev,
> > - struct drm_writeback_connector
> *wb_connector,
> > - const struct drm_connector_funcs
> *con_funcs,
> > - const struct drm_encoder_helper_funcs
> *enc_helper_funcs,
> > - const u32 *formats, int n_formats,
> > - u32 possible_crtcs);
> > -
> > int drm_writeback_connector_init_with_encoder(struct drm_device *dev,
> > struct drm_writeback_connector
> *wb_connector,
> > struct drm_encoder *enc,
> >
>
> --
> Louis Chauvet, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com
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