Hi Maxime
On Mon, 7 Dec 2020 at 15:57, Maxime Ripard maxime@cerno.tech wrote:
When run with a higher bpc than 8, the clock of the HDMI controller needs to be adjusted. Let's create a connector state that will be used at atomic_check and atomic_enable to compute and store the clock rate associated to the state.
Acked-by: Thomas Zimmermann tzimmermann@suse.de Signed-off-by: Maxime Ripard maxime@cerno.tech
Reviewed-by: Dave Stevenson dave.stevenson@raspberrypi.com
drivers/gpu/drm/vc4/vc4_hdmi.c | 27 +++++++++++++++++++++++++-- drivers/gpu/drm/vc4/vc4_hdmi.h | 10 ++++++++++ 2 files changed, 35 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 61039cc89d9d..744396c8dcb9 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -170,18 +170,41 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector)
static void vc4_hdmi_connector_reset(struct drm_connector *connector) {
drm_atomic_helper_connector_reset(connector);
struct vc4_hdmi_connector_state *conn_state = kzalloc(sizeof(*conn_state), GFP_KERNEL);if (connector->state)__drm_atomic_helper_connector_destroy_state(connector->state);kfree(connector->state);__drm_atomic_helper_connector_reset(connector, &conn_state->base); if (connector->state) drm_atomic_helper_connector_tv_reset(connector);}
+static struct drm_connector_state * +vc4_hdmi_connector_duplicate_state(struct drm_connector *connector) +{
struct drm_connector_state *conn_state = connector->state;struct vc4_hdmi_connector_state *vc4_state = conn_state_to_vc4_hdmi_conn_state(conn_state);struct vc4_hdmi_connector_state *new_state;new_state = kzalloc(sizeof(*new_state), GFP_KERNEL);if (!new_state)return NULL;__drm_atomic_helper_connector_duplicate_state(connector, &new_state->base);return &new_state->base;+}
static const struct drm_connector_funcs vc4_hdmi_connector_funcs = { .detect = vc4_hdmi_connector_detect, .fill_modes = drm_helper_probe_single_connector_modes, .destroy = vc4_hdmi_connector_destroy, .reset = vc4_hdmi_connector_reset,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_duplicate_state = vc4_hdmi_connector_duplicate_state, .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,};
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index 0526a9cf608a..2cf5362052e2 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -180,6 +180,16 @@ encoder_to_vc4_hdmi(struct drm_encoder *encoder) return container_of(_encoder, struct vc4_hdmi, encoder); }
+struct vc4_hdmi_connector_state {
struct drm_connector_state base;+};
+static inline struct vc4_hdmi_connector_state * +conn_state_to_vc4_hdmi_conn_state(struct drm_connector_state *conn_state) +{
return container_of(conn_state, struct vc4_hdmi_connector_state, base);+}
void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, struct drm_display_mode *mode); void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi); -- 2.28.0