On Tue, Dec 03, 2019 at 12:36:28PM -0500, Sean Paul wrote:
> From: Sean Paul <seanpaul@xxxxxxxxxxxx>
>
> HDCP over MST requires us to toggle ddi signalling. Since we'll want to
> toggle signalling on the pipe associated with the fake encoder as
> opposed to the digital port's base, we need to get it from connector.
I think what you want is the cpu_transcoder, which we've already stuffed
into the hdcp thing when we enabled hdcp.
>
> This patch converts all existing callers and implementations to use
> connector instead of digital port.
>
> Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_display_types.h | 2 +-
> drivers/gpu/drm/i915/display/intel_dp.c | 2 +-
> drivers/gpu/drm/i915/display/intel_hdcp.c | 10 ++++------
> drivers/gpu/drm/i915/display/intel_hdmi.c | 8 ++++----
> 4 files changed, 10 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
> index 4341bd66a418..bbd44772b9b0 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> @@ -300,7 +300,7 @@ struct intel_hdcp_shim {
> int i, u32 *part);
>
> /* Enables HDCP signalling on the port */
> - int (*toggle_signalling)(struct intel_digital_port *intel_dig_port,
> + int (*toggle_signalling)(struct intel_connector *connector,
> bool enable);
>
> /* Ensures the link is still protected */
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 7a407c651fb2..e26fb26b1909 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -6038,7 +6038,7 @@ int intel_dp_hdcp_read_v_prime_part(struct intel_digital_port *intel_dig_port,
> }
>
> static
> -int intel_dp_hdcp_toggle_signalling(struct intel_digital_port *intel_dig_port,
> +int intel_dp_hdcp_toggle_signalling(struct intel_connector *connector,
> bool enable)
> {
> /* Not used for single stream DisplayPort setups */
> diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
> index 8325bf9501e4..0966a8ec47d2 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdcp.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
> @@ -693,7 +693,7 @@ static int intel_hdcp_auth(struct intel_connector *connector)
> intel_hdcp_get_repeater_ctl(dev_priv, cpu_transcoder,
> port));
>
> - ret = shim->toggle_signalling(intel_dig_port, true);
> + ret = shim->toggle_signalling(connector, true);
> if (ret)
> return ret;
>
> @@ -787,7 +787,7 @@ static int _intel_hdcp_disable(struct intel_connector *connector)
> return -ETIMEDOUT;
> }
>
> - ret = hdcp->shim->toggle_signalling(intel_dig_port, false);
> + ret = hdcp->shim->toggle_signalling(connector, false);
> if (ret) {
> DRM_ERROR("Failed to disable HDCP signalling\n");
> return ret;
> @@ -1537,7 +1537,6 @@ static int hdcp2_authenticate_sink(struct intel_connector *connector)
>
> static int hdcp2_enable_encryption(struct intel_connector *connector)
> {
> - struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector);
> struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> struct intel_hdcp *hdcp = &connector->hdcp;
> enum port port = connector->encoder->port;
> @@ -1547,7 +1546,7 @@ static int hdcp2_enable_encryption(struct intel_connector *connector)
> WARN_ON(I915_READ(HDCP2_STATUS(dev_priv, cpu_transcoder, port)) &
> LINK_ENCRYPTION_STATUS);
> if (hdcp->shim->toggle_signalling) {
> - ret = hdcp->shim->toggle_signalling(intel_dig_port, true);
> + ret = hdcp->shim->toggle_signalling(connector, true);
> if (ret) {
> DRM_ERROR("Failed to enable HDCP signalling. %d\n",
> ret);
> @@ -1575,7 +1574,6 @@ static int hdcp2_enable_encryption(struct intel_connector *connector)
>
> static int hdcp2_disable_encryption(struct intel_connector *connector)
> {
> - struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector);
> struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> struct intel_hdcp *hdcp = &connector->hdcp;
> enum port port = connector->encoder->port;
> @@ -1598,7 +1596,7 @@ static int hdcp2_disable_encryption(struct intel_connector *connector)
> DRM_DEBUG_KMS("Disable Encryption Timedout");
>
> if (hdcp->shim->toggle_signalling) {
> - ret = hdcp->shim->toggle_signalling(intel_dig_port, false);
> + ret = hdcp->shim->toggle_signalling(connector, false);
> if (ret) {
> DRM_ERROR("Failed to disable HDCP signalling. %d\n",
> ret);
> diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
> index f6f5312205c4..6a1e711c4f7a 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
> @@ -1475,18 +1475,18 @@ static int kbl_repositioning_enc_en_signal(struct intel_connector *connector)
> }
>
> static
> -int intel_hdmi_hdcp_toggle_signalling(struct intel_digital_port *intel_dig_port,
> +int intel_hdmi_hdcp_toggle_signalling(struct intel_connector *connector,
> bool enable)
> {
> - struct intel_hdmi *hdmi = &intel_dig_port->hdmi;
> - struct intel_connector *connector = hdmi->attached_connector;
> + struct intel_encoder *encoder =
> + intel_attached_encoder(&connector->base);
> struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> int ret;
>
> if (!enable)
> usleep_range(6, 60); /* Bspec says >= 6us */
>
> - ret = intel_ddi_toggle_hdcp_signalling(&intel_dig_port->base, enable);
> + ret = intel_ddi_toggle_hdcp_signalling(encoder, enable);
> if (ret) {
> DRM_ERROR("%s HDCP signalling failed (%d)\n",
> enable ? "Enable" : "Disable", ret);
> --
> Sean Paul, Software Engineer, Google / Chromium OS
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Ville Syrjälä
Intel
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