Hello Abhinav,
Thank you for the patch.
On Thu, Mar 31, 2022 at 05:12:10PM -0700, Abhinav Kumar wrote:
> Clients of drm_writeback_connector_init() initialize the
> possible_crtcs and then invoke the call to this API.
>
> To simplify things, allow passing possible_crtcs as a parameter
> to drm_writeback_connector_init() and make changes to the
> other drm drivers to make them compatible with this change.
>
> changes in v6:
> - None
>
> Signed-off-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
> Acked-by: Liviu Dudau <liviu.dudau@xxxxxxx>
> ---
> drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c | 3 +--
> drivers/gpu/drm/arm/malidp_mw.c | 4 ++--
> drivers/gpu/drm/drm_writeback.c | 6 +++++-
> drivers/gpu/drm/rcar-du/rcar_du_writeback.c | 4 ++--
> drivers/gpu/drm/vc4/vc4_txp.c | 3 ++-
> drivers/gpu/drm/vkms/vkms_writeback.c | 4 ++--
> include/drm/drm_writeback.h | 2 +-
> 7 files changed, 15 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
> index e465cc4..40774e6 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
> @@ -155,7 +155,6 @@ static int komeda_wb_connector_add(struct komeda_kms_dev *kms,
> kwb_conn->wb_layer = kcrtc->master->wb_layer;
>
> wb_conn = &kwb_conn->base;
> - wb_conn->encoder.possible_crtcs = BIT(drm_crtc_index(&kcrtc->base));
>
> formats = komeda_get_layer_fourcc_list(&mdev->fmt_tbl,
> kwb_conn->wb_layer->layer_type,
> @@ -164,7 +163,7 @@ static int komeda_wb_connector_add(struct komeda_kms_dev *kms,
> err = drm_writeback_connector_init(&kms->base, wb_conn,
> &komeda_wb_connector_funcs,
> &komeda_wb_encoder_helper_funcs,
> - formats, n_formats);
> + formats, n_formats, BIT(drm_crtc_index(&kcrtc->base)));
Please wrap long lines to match the coding style of existing drivers.
> komeda_put_fourcc_list(formats);
> if (err) {
> kfree(kwb_conn);
> diff --git a/drivers/gpu/drm/arm/malidp_mw.c b/drivers/gpu/drm/arm/malidp_mw.c
> index f5847a7..e54921d 100644
> --- a/drivers/gpu/drm/arm/malidp_mw.c
> +++ b/drivers/gpu/drm/arm/malidp_mw.c
> @@ -212,7 +212,6 @@ int malidp_mw_connector_init(struct drm_device *drm)
> if (!malidp->dev->hw->enable_memwrite)
> return 0;
>
> - malidp->mw_connector.encoder.possible_crtcs = 1 << drm_crtc_index(&malidp->crtc);
> drm_connector_helper_add(&malidp->mw_connector.base,
> &malidp_mw_connector_helper_funcs);
>
> @@ -223,7 +222,8 @@ int malidp_mw_connector_init(struct drm_device *drm)
> ret = drm_writeback_connector_init(drm, &malidp->mw_connector,
> &malidp_mw_connector_funcs,
> &malidp_mw_encoder_helper_funcs,
> - formats, n_formats);
> + formats, n_formats,
> + (1 << drm_crtc_index(&malidp->crtc)));
Wrong indentation, and outer parentheses are not needed.
> kfree(formats);
> if (ret)
> return ret;
> diff --git a/drivers/gpu/drm/drm_writeback.c b/drivers/gpu/drm/drm_writeback.c
> index dccf4504..dc2ef12 100644
> --- a/drivers/gpu/drm/drm_writeback.c
> +++ b/drivers/gpu/drm/drm_writeback.c
> @@ -157,6 +157,7 @@ static const struct drm_encoder_funcs drm_writeback_encoder_funcs = {
> * @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
> @@ -174,7 +175,7 @@ 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)
> + const u32 *formats, int n_formats, uint32_t possible_crtcs)
For in-kernel code, you can use u32 instead of uint32_t.
> {
> struct drm_property_blob *blob;
> struct drm_connector *connector = &wb_connector->base;
> @@ -190,6 +191,9 @@ int drm_writeback_connector_init(struct drm_device *dev,
> return PTR_ERR(blob);
>
> 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);
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_writeback.c b/drivers/gpu/drm/rcar-du/rcar_du_writeback.c
> index c79d125..fcfb0b3 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_writeback.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_writeback.c
> @@ -200,7 +200,6 @@ int rcar_du_writeback_init(struct rcar_du_device *rcdu,
> {
> struct drm_writeback_connector *wb_conn = &rcrtc->writeback;
>
> - wb_conn->encoder.possible_crtcs = 1 << drm_crtc_index(&rcrtc->crtc);
> drm_connector_helper_add(&wb_conn->base,
> &rcar_du_wb_conn_helper_funcs);
>
> @@ -208,7 +207,8 @@ int rcar_du_writeback_init(struct rcar_du_device *rcdu,
> &rcar_du_wb_conn_funcs,
> &rcar_du_wb_enc_helper_funcs,
> writeback_formats,
> - ARRAY_SIZE(writeback_formats));
> + ARRAY_SIZE(writeback_formats),
> + (1 << drm_crtc_index(&rcrtc->crtc)));
Wrong indentation, and outer parentheses are not needed.
> }
>
> void rcar_du_writeback_setup(struct rcar_du_crtc *rcrtc,
> diff --git a/drivers/gpu/drm/vc4/vc4_txp.c b/drivers/gpu/drm/vc4/vc4_txp.c
> index 9809ca3..3447eb6 100644
> --- a/drivers/gpu/drm/vc4/vc4_txp.c
> +++ b/drivers/gpu/drm/vc4/vc4_txp.c
> @@ -497,7 +497,8 @@ static int vc4_txp_bind(struct device *dev, struct device *master, void *data)
> ret = drm_writeback_connector_init(drm, &txp->connector,
> &vc4_txp_connector_funcs,
> &vc4_txp_encoder_helper_funcs,
> - drm_fmts, ARRAY_SIZE(drm_fmts));
> + drm_fmts, ARRAY_SIZE(drm_fmts),
> + 0);
> if (ret)
> return ret;
>
> diff --git a/drivers/gpu/drm/vkms/vkms_writeback.c b/drivers/gpu/drm/vkms/vkms_writeback.c
> index 8694227..6d01e55 100644
> --- a/drivers/gpu/drm/vkms/vkms_writeback.c
> +++ b/drivers/gpu/drm/vkms/vkms_writeback.c
> @@ -140,12 +140,12 @@ int vkms_enable_writeback_connector(struct vkms_device *vkmsdev)
> {
> struct drm_writeback_connector *wb = &vkmsdev->output.wb_connector;
>
> - vkmsdev->output.wb_connector.encoder.possible_crtcs = 1;
> drm_connector_helper_add(&wb->base, &vkms_wb_conn_helper_funcs);
>
> return drm_writeback_connector_init(&vkmsdev->drm, wb,
> &vkms_wb_connector_funcs,
> &vkms_wb_encoder_helper_funcs,
> vkms_wb_formats,
> - ARRAY_SIZE(vkms_wb_formats));
> + ARRAY_SIZE(vkms_wb_formats),
> + 1);
> }
> diff --git a/include/drm/drm_writeback.h b/include/drm/drm_writeback.h
> index 9697d27..db6214f 100644
> --- a/include/drm/drm_writeback.h
> +++ b/include/drm/drm_writeback.h
> @@ -150,7 +150,7 @@ 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);
> + const u32 *formats, int n_formats, uint32_t possible_crtcs);
Line wrap here too.
>
> int drm_writeback_set_fb(struct drm_connector_state *conn_state,
> struct drm_framebuffer *fb);
--
Regards,
Laurent Pinchart
