On 26/05/2020 03:14, Laurent Pinchart wrote:
> Isolate all the code related to connector creation to a new
> dw_hdmi_connector_create() function, to prepare for making connector
> creation optional.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+rene...@ideasonboard.com>
> ---
> drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 107 +++++++++++++---------
> 1 file changed, 62 insertions(+), 45 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> index a18794cce0d8..35d38b644912 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> @@ -2317,6 +2317,10 @@ static void dw_hdmi_update_phy_mask(struct dw_hdmi
> *hdmi)
> hdmi->rxsense);
> }
>
> +/*
> -----------------------------------------------------------------------------
> + * DRM Connector Operations
> + */
> +
> static enum drm_connector_status
> dw_hdmi_connector_detect(struct drm_connector *connector, bool force)
> {
> @@ -2438,6 +2442,59 @@ static const struct drm_connector_helper_funcs
> dw_hdmi_connector_helper_funcs =
> .atomic_check = dw_hdmi_connector_atomic_check,
> };
>
> +static int dw_hdmi_connector_create(struct dw_hdmi *hdmi)
> +{
> + struct drm_connector *connector = &hdmi->connector;
> + struct cec_connector_info conn_info;
> + struct cec_notifier *notifier;
> +
> + if (hdmi->version >= 0x200a)
> + connector->ycbcr_420_allowed =
> + hdmi->plat_data->ycbcr_420_allowed;
> + else
> + connector->ycbcr_420_allowed = false;
> +
> + connector->interlace_allowed = 1;
> + connector->polled = DRM_CONNECTOR_POLL_HPD;
> +
> + drm_connector_helper_add(connector, &dw_hdmi_connector_helper_funcs);
> +
> + drm_connector_init_with_ddc(hdmi->bridge.dev, connector,
> + &dw_hdmi_connector_funcs,
> + DRM_MODE_CONNECTOR_HDMIA,
> + hdmi->ddc);
> +
> + /*
> + * drm_connector_attach_max_bpc_property() requires the
> + * connector to have a state.
> + */
> + drm_atomic_helper_connector_reset(connector);
> +
> + drm_connector_attach_max_bpc_property(connector, 8, 16);
> +
> + if (hdmi->version >= 0x200a && hdmi->plat_data->use_drm_infoframe)
> + drm_object_attach_property(&connector->base,
> +
> connector->dev->mode_config.hdr_output_metadata_property, 0);
> +
> + drm_connector_attach_encoder(connector, hdmi->bridge.encoder);
> +
> + cec_fill_conn_info_from_drm(&conn_info, connector);
> +
> + notifier = cec_notifier_conn_register(hdmi->dev, NULL, &conn_info);
> + if (!notifier)
> + return -ENOMEM;
> +
> + mutex_lock(&hdmi->cec_notifier_mutex);
> + hdmi->cec_notifier = notifier;
> + mutex_unlock(&hdmi->cec_notifier_mutex);
> +
> + return 0;
> +}
> +
> +/*
> -----------------------------------------------------------------------------
> + * DRM Bridge Operations
> + */
> +
> /*
> * Possible output formats :
> * - MEDIA_BUS_FMT_UYYVYY16_0_5X48,
> @@ -2713,51 +2770,13 @@ static int dw_hdmi_bridge_attach(struct drm_bridge
> *bridge,
> enum drm_bridge_attach_flags flags)
> {
> struct dw_hdmi *hdmi = bridge->driver_private;
> - struct drm_encoder *encoder = bridge->encoder;
> - struct drm_connector *connector = &hdmi->connector;
> - struct cec_connector_info conn_info;
> - struct cec_notifier *notifier;
>
> if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR) {
> DRM_ERROR("Fix bridge driver to make connector optional!");
> return -EINVAL;
> }
>
> - connector->interlace_allowed = 1;
> - connector->polled = DRM_CONNECTOR_POLL_HPD;
> -
> - drm_connector_helper_add(connector, &dw_hdmi_connector_helper_funcs);
> -
> - drm_connector_init_with_ddc(bridge->dev, connector,
> - &dw_hdmi_connector_funcs,
> - DRM_MODE_CONNECTOR_HDMIA,
> - hdmi->ddc);
> -
> - /*
> - * drm_connector_attach_max_bpc_property() requires the
> - * connector to have a state.
> - */
> - drm_atomic_helper_connector_reset(connector);
> -
> - drm_connector_attach_max_bpc_property(connector, 8, 16);
> -
> - if (hdmi->version >= 0x200a && hdmi->plat_data->use_drm_infoframe)
> - drm_object_attach_property(&connector->base,
> -
> connector->dev->mode_config.hdr_output_metadata_property, 0);
> -
> - drm_connector_attach_encoder(connector, encoder);
> -
> - cec_fill_conn_info_from_drm(&conn_info, connector);
> -
> - notifier = cec_notifier_conn_register(hdmi->dev, NULL, &conn_info);
> - if (!notifier)
> - return -ENOMEM;
> -
> - mutex_lock(&hdmi->cec_notifier_mutex);
> - hdmi->cec_notifier = notifier;
> - mutex_unlock(&hdmi->cec_notifier_mutex);
> -
> - return 0;
> + return dw_hdmi_connector_create(hdmi);
> }
>
> static void dw_hdmi_bridge_detach(struct drm_bridge *bridge)
> @@ -2841,6 +2860,10 @@ static const struct drm_bridge_funcs
> dw_hdmi_bridge_funcs = {
> .mode_valid = dw_hdmi_bridge_mode_valid,
> };
>
> +/*
> -----------------------------------------------------------------------------
> + * IRQ Handling
> + */
> +
> static irqreturn_t dw_hdmi_i2c_irq(struct dw_hdmi *hdmi)
> {
> struct dw_hdmi_i2c *i2c = hdmi->i2c;
> @@ -3303,12 +3326,6 @@ __dw_hdmi_probe(struct platform_device *pdev,
> hdmi->bridge.of_node = pdev->dev.of_node;
> #endif
>
> - if (hdmi->version >= 0x200a)
> - hdmi->connector.ycbcr_420_allowed =
> - hdmi->plat_data->ycbcr_420_allowed;
> - else
> - hdmi->connector.ycbcr_420_allowed = false;
> -
> memset(&pdevinfo, 0, sizeof(pdevinfo));
> pdevinfo.parent = dev;
> pdevinfo.id = PLATFORM_DEVID_AUTO;
>
Reviewed-by: Neil Armstrong <narmstr...@baylibre.com>
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