diff mbox series

[3/3] drm/i915/hdcp: Add more conditions to enable hdcp

Message ID 20231026121139.987437-4-suraj.kandpal@intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915/hdcp: Additional conditions to enable hdcp | expand

Commit Message

Kandpal, Suraj Oct. 26, 2023, 12:11 p.m. UTC
When we dock a monitor we end up with a enable and disable connector
cycle but if hdcp content is running we get the userspace in
enabled state and driver maintaining a undesired state which causes
the content to stop playing and we only enabe hdcp if the userspace
state in desired. This patch fixes that.

--v2
-Move code to intel_hdcp [Jani]

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
---
 drivers/gpu/drm/i915/display/intel_hdcp.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

Comments

Nautiyal, Ankit K Oct. 27, 2023, 5:58 a.m. UTC | #1
On 10/26/2023 5:41 PM, Suraj Kandpal wrote:
> When we dock a monitor we end up with a enable and disable connector
> cycle but if hdcp content is running we get the userspace in

I was wondering if there should have been a uevent sent when driver 
changes the state from enabled to undesired,

but as per documentation we send the uevent only from enabled->desired 
or desired->enabled.

Anyway, this change looks good to me.

> enabled state and driver maintaining a undesired state which causes
> the content to stop playing and we only enabe hdcp if the userspace

Nitpick : enable

> state in desired. This patch fixes that.
>
> --v2
> -Move code to intel_hdcp [Jani]
>
> Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>


Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>

> ---
>   drivers/gpu/drm/i915/display/intel_hdcp.c | 14 ++++++++++++--
>   1 file changed, 12 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
> index 44c0a93f3af8..39b3f7c0c77c 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdcp.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
> @@ -2409,9 +2409,19 @@ void intel_hdcp_enable(struct intel_atomic_state *state,
>   		       const struct intel_crtc_state *crtc_state,
>   		       const struct drm_connector_state *conn_state)
>   {
> -	/* Enable hdcp if it's desired */
> +	struct intel_connector *connector =
> +		to_intel_connector(conn_state->connector);
> +	struct intel_hdcp *hdcp = &connector->hdcp;
> +
> +	/*
> +	 * Enable hdcp if it's desired or if userspace is enabled and
> +	 * driver set its state to undesired
> +	 */
>   	if (conn_state->content_protection ==
> -	    DRM_MODE_CONTENT_PROTECTION_DESIRED)
> +	    DRM_MODE_CONTENT_PROTECTION_DESIRED ||
> +	    (conn_state->content_protection ==
> +	    DRM_MODE_CONTENT_PROTECTION_ENABLED && hdcp->value ==
> +	    DRM_MODE_CONTENT_PROTECTION_UNDESIRED))
>   		_intel_hdcp_enable(state, encoder, crtc_state, conn_state);
>   }
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index 44c0a93f3af8..39b3f7c0c77c 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -2409,9 +2409,19 @@  void intel_hdcp_enable(struct intel_atomic_state *state,
 		       const struct intel_crtc_state *crtc_state,
 		       const struct drm_connector_state *conn_state)
 {
-	/* Enable hdcp if it's desired */
+	struct intel_connector *connector =
+		to_intel_connector(conn_state->connector);
+	struct intel_hdcp *hdcp = &connector->hdcp;
+
+	/*
+	 * Enable hdcp if it's desired or if userspace is enabled and
+	 * driver set its state to undesired
+	 */
 	if (conn_state->content_protection ==
-	    DRM_MODE_CONTENT_PROTECTION_DESIRED)
+	    DRM_MODE_CONTENT_PROTECTION_DESIRED ||
+	    (conn_state->content_protection ==
+	    DRM_MODE_CONTENT_PROTECTION_ENABLED && hdcp->value ==
+	    DRM_MODE_CONTENT_PROTECTION_UNDESIRED))
 		_intel_hdcp_enable(state, encoder, crtc_state, conn_state);
 }