Gentle reminder to review this patch.
Thanks,
Vinod P.
> -----Original Message-----
> From: Vinod Polimera <quic_vpolimer@xxxxxxxxxxx>
> Sent: Monday, July 11, 2022 6:27 PM
> To: dri-devel@xxxxxxxxxxxxxxxxxxxxx; linux-arm-msm@xxxxxxxxxxxxxxx;
> freedreno@xxxxxxxxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx
> Cc: Vinod Polimera (QUIC) <quic_vpolimer@xxxxxxxxxxx>; linux-
> kernel@xxxxxxxxxxxxxxx; robdclark@xxxxxxxxx; dianders@xxxxxxxxxxxx;
> swboyd@xxxxxxxxxxxx; Kalyan Thota (QUIC) <quic_kalyant@xxxxxxxxxxx>;
> dmitry.baryshkov@xxxxxxxxxx; Kuogee Hsieh (QUIC)
> <quic_khsieh@xxxxxxxxxxx>; Vishnuvardhan Prodduturi (QUIC)
> <quic_vproddut@xxxxxxxxxxx>; bjorn.andersson@xxxxxxxxxx; Aravind
> Venkateswaran (QUIC) <quic_aravindh@xxxxxxxxxxx>; Abhinav Kumar
> (QUIC) <quic_abhinavk@xxxxxxxxxxx>; Sankeerth Billakanti (QUIC)
> <quic_sbillaka@xxxxxxxxxxx>
> Subject: [PATCH v6 02/10] drm: add helper functions to retrieve old and new
> crtc
>
> Add new helper functions, drm_atomic_get_old_crtc_for_encoder
> and drm_atomic_get_new_crtc_for_encoder to retrieve the
> corresponding crtc for the encoder.
>
> Signed-off-by: Sankeerth Billakanti <quic_sbillaka@xxxxxxxxxxx>
> Signed-off-by: Vinod Polimera <quic_vpolimer@xxxxxxxxxxx>
> ---
> drivers/gpu/drm/drm_atomic.c | 60
> ++++++++++++++++++++++++++++++++++++++++++++
> include/drm/drm_atomic.h | 7 ++++++
> 2 files changed, 67 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
> index 58c0283..87fcb55 100644
> --- a/drivers/gpu/drm/drm_atomic.c
> +++ b/drivers/gpu/drm/drm_atomic.c
> @@ -983,6 +983,66 @@
> drm_atomic_get_new_connector_for_encoder(struct drm_atomic_state
> *state,
> EXPORT_SYMBOL(drm_atomic_get_new_connector_for_encoder);
>
> /**
> + * drm_atomic_get_old_crtc_for_encoder - Get old crtc for an encoder
> + * @state: Atomic state
> + * @encoder: The encoder to fetch the crtc state for
> + *
> + * This function finds and returns the crtc that was connected to @encoder
> + * as specified by the @state.
> + *
> + * Returns: The old crtc connected to @encoder, or NULL if the encoder is
> + * not connected.
> + */
> +struct drm_crtc *
> +drm_atomic_get_old_crtc_for_encoder(struct drm_atomic_state *state,
> + struct drm_encoder *encoder)
> +{
> + struct drm_connector *connector;
> + struct drm_connector_state *conn_state;
> +
> + connector = drm_atomic_get_old_connector_for_encoder(state,
> encoder);
> + if (!connector)
> + return NULL;
> +
> + conn_state = drm_atomic_get_old_connector_state(state,
> connector);
> + if (!conn_state)
> + return NULL;
> +
> + return conn_state->crtc;
> +}
> +EXPORT_SYMBOL(drm_atomic_get_old_crtc_for_encoder);
> +
> +/**
> + * drm_atomic_get_new_crtc_for_encoder - Get new crtc for an encoder
> + * @state: Atomic state
> + * @encoder: The encoder to fetch the crtc state for
> + *
> + * This function finds and returns the crtc that will be connected to
> @encoder
> + * as specified by the @state.
> + *
> + * Returns: The new crtc connected to @encoder, or NULL if the encoder is
> + * not connected.
> + */
> +struct drm_crtc *
> +drm_atomic_get_new_crtc_for_encoder(struct drm_atomic_state *state,
> + struct drm_encoder *encoder)
> +{
> + struct drm_connector *connector;
> + struct drm_connector_state *conn_state;
> +
> + connector = drm_atomic_get_new_connector_for_encoder(state,
> encoder);
> + if (!connector)
> + return NULL;
> +
> + conn_state = drm_atomic_get_new_connector_state(state,
> connector);
> + if (!conn_state)
> + return NULL;
> +
> + return conn_state->crtc;
> +}
> +EXPORT_SYMBOL(drm_atomic_get_new_crtc_for_encoder);
> +
> +/**
> * drm_atomic_get_connector_state - get connector state
> * @state: global atomic state object
> * @connector: connector to get state object for
> diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
> index 0777725..7001f12 100644
> --- a/include/drm/drm_atomic.h
> +++ b/include/drm/drm_atomic.h
> @@ -528,6 +528,13 @@ struct drm_connector *
> drm_atomic_get_new_connector_for_encoder(struct drm_atomic_state
> *state,
> struct drm_encoder *encoder);
>
> +struct drm_crtc *
> +drm_atomic_get_old_crtc_for_encoder(struct drm_atomic_state *state,
> + struct drm_encoder *encoder);
> +struct drm_crtc *
> +drm_atomic_get_new_crtc_for_encoder(struct drm_atomic_state *state,
> + struct drm_encoder *encoder);
> +
> /**
> * drm_atomic_get_existing_crtc_state - get CRTC state, if it exists
> * @state: global atomic state object
> --
> 2.7.4
