Op 26-02-2019 om 08:36 schreef Ramalingam C:
> Attaches the content type property for HDCP2.2 capable connectors.
>
> Implements the update of content type from property and apply the
> restriction on HDCP version selection.
>
> Signed-off-by: Ramalingam C <ramalinga...@intel.com>
> ---
> drivers/gpu/drm/i915/intel_ddi.c | 21 +++++++++++++++------
> drivers/gpu/drm/i915/intel_drv.h | 2 +-
> drivers/gpu/drm/i915/intel_hdcp.c | 18 +++++++++++++++---
> 3 files changed, 31 insertions(+), 10 deletions(-)
This should probably be the last patch, because we can only enable HDCP 2.2
with all patches merged?
> diff --git a/drivers/gpu/drm/i915/intel_ddi.c
> b/drivers/gpu/drm/i915/intel_ddi.c
> index 1355be8dec3b..ffe7759a3f3a 100644
> --- a/drivers/gpu/drm/i915/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/intel_ddi.c
> @@ -3499,7 +3499,8 @@ static void intel_enable_ddi(struct intel_encoder
> *encoder,
> /* Enable hdcp if it's desired */
> if (conn_state->content_protection ==
> DRM_MODE_CONTENT_PROTECTION_DESIRED)
> - intel_hdcp_enable(to_intel_connector(conn_state->connector));
> + intel_hdcp_enable(to_intel_connector(conn_state->connector),
> + (u8)conn_state->cp_content_type);
> }
>
> static void intel_disable_ddi_dp(struct intel_encoder *encoder,
> @@ -3562,21 +3563,29 @@ static void intel_ddi_update_pipe_dp(struct
> intel_encoder *encoder,
> intel_panel_update_backlight(encoder, crtc_state, conn_state);
> }
>
> -static void intel_ddi_update_pipe(struct intel_encoder *encoder,
> +static void intel_ddi_update_hdcp(struct intel_encoder *encoder,
> const struct intel_crtc_state *crtc_state,
> const struct drm_connector_state *conn_state)
> {
> - if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
> - intel_ddi_update_pipe_dp(encoder, crtc_state, conn_state);
> -
> if (conn_state->content_protection ==
> DRM_MODE_CONTENT_PROTECTION_DESIRED)
> - intel_hdcp_enable(to_intel_connector(conn_state->connector));
> + intel_hdcp_enable(to_intel_connector(conn_state->connector),
> + (u8)conn_state->cp_content_type);
> else if (conn_state->content_protection ==
> DRM_MODE_CONTENT_PROTECTION_UNDESIRED)
> intel_hdcp_disable(to_intel_connector(conn_state->connector));
> }
>
> +static void intel_ddi_update_pipe(struct intel_encoder *encoder,
> + const struct intel_crtc_state *crtc_state,
> + const struct drm_connector_state *conn_state)
> +{
> + if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
> + intel_ddi_update_pipe_dp(encoder, crtc_state, conn_state);
> +
> + intel_ddi_update_hdcp(encoder, crtc_state, conn_state);
> +}
> +
> static void intel_ddi_set_fia_lane_count(struct intel_encoder *encoder,
> const struct intel_crtc_state
> *pipe_config,
> enum port port)
> diff --git a/drivers/gpu/drm/i915/intel_drv.h
> b/drivers/gpu/drm/i915/intel_drv.h
> index 81ec73e4a083..04cff672aead 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -2151,7 +2151,7 @@ void intel_hdcp_atomic_check(struct drm_connector
> *connector,
> struct drm_connector_state *new_state);
> int intel_hdcp_init(struct intel_connector *connector,
> const struct intel_hdcp_shim *hdcp_shim);
> -int intel_hdcp_enable(struct intel_connector *connector);
> +int intel_hdcp_enable(struct intel_connector *connector, u8 content_type);
> int intel_hdcp_disable(struct intel_connector *connector);
> bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port);
> bool intel_hdcp_capable(struct intel_connector *connector);
> diff --git a/drivers/gpu/drm/i915/intel_hdcp.c
> b/drivers/gpu/drm/i915/intel_hdcp.c
> index 9ce09f67776d..ab25264a74a4 100644
> --- a/drivers/gpu/drm/i915/intel_hdcp.c
> +++ b/drivers/gpu/drm/i915/intel_hdcp.c
> @@ -1782,6 +1782,12 @@ static void intel_hdcp2_init(struct intel_connector
> *connector)
> return;
> }
>
> + ret = drm_connector_attach_cp_content_type_property(&connector->base);
> + if (ret) {
> + kfree(hdcp->port_data.streams);
> + return;
> + }
> +
> hdcp->hdcp2_supported = true;
> }
>
> @@ -1811,7 +1817,7 @@ int intel_hdcp_init(struct intel_connector *connector,
> return 0;
> }
>
> -int intel_hdcp_enable(struct intel_connector *connector)
> +int intel_hdcp_enable(struct intel_connector *connector, u8 content_type)
> {
> struct intel_hdcp *hdcp = &connector->hdcp;
> unsigned long check_link_interval = DRM_HDCP_CHECK_PERIOD_MS;
> @@ -1823,6 +1829,8 @@ int intel_hdcp_enable(struct intel_connector *connector)
> mutex_lock(&hdcp->mutex);
> WARN_ON(hdcp->value == DRM_MODE_CONTENT_PROTECTION_ENABLED);
>
> + hdcp->content_type = content_type;
> +
> /*
> * Considering that HDCP2.2 is more secure than HDCP1.4, If the setup
> * is capable of HDCP2.2, it is preferred to use HDCP2.2.
> @@ -1833,8 +1841,12 @@ int intel_hdcp_enable(struct intel_connector
> *connector)
> check_link_interval = DRM_HDCP2_CHECK_PERIOD_MS;
> }
>
> - /* When HDCP2.2 fails, HDCP1.4 will be attempted */
> - if (ret && intel_hdcp_capable(connector)) {
> + /*
> + * When HDCP2.2 fails and Content Type is not Type1, HDCP1.4 will
> + * be attempted.
> + */
> + if (ret && intel_hdcp_capable(connector) &&
> + hdcp->content_type != DRM_MODE_CP_CONTENT_TYPE1) {
> ret = _intel_hdcp_enable(connector);
> }
>
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