From: Sean Paul <[email protected]>
The shim functions return error codes, but they are discarded in
intel_hdcp.c. This patch plumbs the return codes through so they are
properly handled.
Acked-by: Jani Nikula <[email protected]>
Reviewed-by: Rodrigo Vivi <[email protected]>
Signed-off-by: Sean Paul <[email protected]>
Signed-off-by: Mark Yacoub <[email protected]>
---
Changes in v2:
-None
Changes in v3:
-None
Changes in v4:
-None
Changes in v5:
-None
Changes in v6:
-Rebased
Changes in v7:
-None
Changes in v8:
-None
.../drm/i915/display/intel_display_debugfs.c | 9 +++-
drivers/gpu/drm/i915/display/intel_hdcp.c | 51 ++++++++++---------
drivers/gpu/drm/i915/display/intel_hdcp.h | 4 +-
3 files changed, 37 insertions(+), 27 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
index 7bcd90384a46d..a14b86a07e545 100644
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@ -494,6 +494,7 @@ static void intel_panel_info(struct seq_file *m,
static void intel_hdcp_info(struct seq_file *m,
struct intel_connector *intel_connector)
{
+ int ret;
bool hdcp_cap, hdcp2_cap;
if (!intel_connector->hdcp.shim) {
@@ -501,8 +502,12 @@ static void intel_hdcp_info(struct seq_file *m,
goto out;
}
- hdcp_cap = intel_hdcp_capable(intel_connector);
- hdcp2_cap = intel_hdcp2_capable(intel_connector);
+ ret = intel_hdcp_capable(intel_connector, &hdcp_cap);
+ if (ret)
+ hdcp_cap = false;
+ ret = intel_hdcp2_capable(intel_connector, &hdcp2_cap);
+ if (ret)
+ hdcp2_cap = false;
if (hdcp_cap)
seq_puts(m, "HDCP1.4 ");
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index 0a20bc41be55d..61a862ae1f286 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -177,50 +177,49 @@ int intel_hdcp_read_valid_bksv(struct intel_digital_port *dig_port,
}
/* Is HDCP1.4 capable on Platform and Sink */
-bool intel_hdcp_capable(struct intel_connector *connector)
+int intel_hdcp_capable(struct intel_connector *connector, bool *capable)
{
struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
const struct intel_hdcp_shim *shim = connector->hdcp.shim;
- bool capable = false;
u8 bksv[5];
+ *capable = false;
+
if (!shim)
- return capable;
+ return 0;
- if (shim->hdcp_capable) {
- shim->hdcp_capable(dig_port, &capable);
- } else {
- if (!intel_hdcp_read_valid_bksv(dig_port, shim, bksv))
- capable = true;
- }
+ if (shim->hdcp_capable)
+ return shim->hdcp_capable(dig_port, capable);
+
+ if (!intel_hdcp_read_valid_bksv(dig_port, shim, bksv))
+ *capable = true;
- return capable;
+ return 0;
}
/* Is HDCP2.2 capable on Platform and Sink */
-bool intel_hdcp2_capable(struct intel_connector *connector)
+int intel_hdcp2_capable(struct intel_connector *connector, bool *capable)
{
struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
- bool capable = false;
+
+ *capable = false;
/* I915 support for HDCP2.2 */
if (!hdcp->hdcp2_supported)
- return false;
+ return 0;
/* MEI interface is solid */
mutex_lock(&dev_priv->display.hdcp.comp_mutex);
if (!dev_priv->display.hdcp.comp_added || !dev_priv->display.hdcp.master) {
mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
- return false;
+ return 0;
}
mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
/* Sink's capability for HDCP2.2 */
- hdcp->shim->hdcp_2_2_capable(dig_port, &capable);
-
- return capable;
+ return hdcp->shim->hdcp_2_2_capable(dig_port, capable);
}
static bool intel_hdcp_in_use(struct drm_i915_private *dev_priv,
@@ -2355,6 +2354,7 @@ int intel_hdcp_enable(struct intel_connector *connector,
struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
struct intel_hdcp *hdcp = &connector->hdcp;
unsigned long check_link_interval = DRM_HDCP_CHECK_PERIOD_MS;
+ bool capable;
int ret = -EINVAL;
if (!hdcp->shim)
@@ -2373,21 +2373,27 @@ int intel_hdcp_enable(struct intel_connector *connector,
* 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.
*/
- if (intel_hdcp2_capable(connector)) {
+ ret = intel_hdcp2_capable(connector, &capable);
+ if (capable) {
ret = _intel_hdcp2_enable(connector);
- if (!ret)
+ if (!ret) {
check_link_interval = DRM_HDCP2_CHECK_PERIOD_MS;
+ goto out;
+ }
}
/*
* 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_HDCP_CONTENT_TYPE1) {
+ ret = intel_hdcp_capable(connector, &capable);
+ if (ret)
+ goto out;
+
+ if (capable && hdcp->content_type != DRM_MODE_HDCP_CONTENT_TYPE1)
ret = _intel_hdcp_enable(connector);
- }
+out:
if (!ret) {
schedule_delayed_work(&hdcp->check_work, check_link_interval);
intel_hdcp_update_value(connector,
@@ -2395,7 +2401,6 @@ int intel_hdcp_enable(struct intel_connector *connector,
true);
}
-out:
mutex_unlock(&dig_port->hdcp_mutex);
mutex_unlock(&hdcp->mutex);
return ret;
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.h b/drivers/gpu/drm/i915/display/intel_hdcp.h
index 7c5fd84a7b65a..f06f6e5a2b1ad 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.h
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.h
@@ -33,8 +33,8 @@ void intel_hdcp_update_pipe(struct intel_atomic_state *state,
const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state);
bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port);
-bool intel_hdcp_capable(struct intel_connector *connector);
-bool intel_hdcp2_capable(struct intel_connector *connector);
+int intel_hdcp_capable(struct intel_connector *connector, bool *capable);
+int intel_hdcp2_capable(struct intel_connector *connector, bool *capable);
void intel_hdcp_component_init(struct drm_i915_private *dev_priv);
void intel_hdcp_component_fini(struct drm_i915_private *dev_priv);
void intel_hdcp_cleanup(struct intel_connector *connector);
--
2.40.0.348.gf938b09366-goog
> -----Original Message-----
> From: Mark Yacoub <[email protected]>
> Sent: Saturday, April 1, 2023 3:42 AM
> To: Jani Nikula <[email protected]>; Joonas Lahtinen
> <[email protected]>; Vivi, Rodrigo <[email protected]>;
> Tvrtko Ursulin <[email protected]>; David Airlie
> <[email protected]>; Daniel Vetter <[email protected]>
> Cc: [email protected]; Kandpal, Suraj <[email protected]>;
> [email protected]; [email protected];
> [email protected]; [email protected]; Nikula, Jani
> <[email protected]>; Mark Yacoub <[email protected]>; linux-
> [email protected]
> Subject: [PATCH v8 06/10] drm/i915/hdcp: Retain hdcp_capable return codes
>
> From: Sean Paul <[email protected]>
>
> The shim functions return error codes, but they are discarded in
> intel_hdcp.c. This patch plumbs the return codes through so they are
> properly handled.
>
> Acked-by: Jani Nikula <[email protected]>
> Reviewed-by: Rodrigo Vivi <[email protected]>
> Signed-off-by: Sean Paul <[email protected]>
> Signed-off-by: Mark Yacoub <[email protected]>
>
> ---
> Changes in v2:
> -None
> Changes in v3:
> -None
> Changes in v4:
> -None
> Changes in v5:
> -None
> Changes in v6:
> -Rebased
> Changes in v7:
> -None
> Changes in v8:
> -None
>
> .../drm/i915/display/intel_display_debugfs.c | 9 +++-
> drivers/gpu/drm/i915/display/intel_hdcp.c | 51 ++++++++++---------
> drivers/gpu/drm/i915/display/intel_hdcp.h | 4 +-
> 3 files changed, 37 insertions(+), 27 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> index 7bcd90384a46d..a14b86a07e545 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> @@ -494,6 +494,7 @@ static void intel_panel_info(struct seq_file *m, static
> void intel_hdcp_info(struct seq_file *m,
> struct intel_connector *intel_connector) {
> + int ret;
> bool hdcp_cap, hdcp2_cap;
>
> if (!intel_connector->hdcp.shim) {
> @@ -501,8 +502,12 @@ static void intel_hdcp_info(struct seq_file *m,
> goto out;
> }
>
> - hdcp_cap = intel_hdcp_capable(intel_connector);
> - hdcp2_cap = intel_hdcp2_capable(intel_connector);
> + ret = intel_hdcp_capable(intel_connector, &hdcp_cap);
> + if (ret)
> + hdcp_cap = false;
> + ret = intel_hdcp2_capable(intel_connector, &hdcp2_cap);
> + if (ret)
> + hdcp2_cap = false;
>
> if (hdcp_cap)
> seq_puts(m, "HDCP1.4 ");
> diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c
> b/drivers/gpu/drm/i915/display/intel_hdcp.c
> index 0a20bc41be55d..61a862ae1f286 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdcp.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
> @@ -177,50 +177,49 @@ int intel_hdcp_read_valid_bksv(struct
> intel_digital_port *dig_port, }
>
> /* Is HDCP1.4 capable on Platform and Sink */ -bool
> intel_hdcp_capable(struct intel_connector *connector)
> +int intel_hdcp_capable(struct intel_connector *connector, bool
> +*capable)
> {
> struct intel_digital_port *dig_port =
> intel_attached_dig_port(connector);
> const struct intel_hdcp_shim *shim = connector->hdcp.shim;
> - bool capable = false;
> u8 bksv[5];
>
> + *capable = false;
> +
> if (!shim)
> - return capable;
> + return 0;
>
> - if (shim->hdcp_capable) {
> - shim->hdcp_capable(dig_port, &capable);
> - } else {
> - if (!intel_hdcp_read_valid_bksv(dig_port, shim, bksv))
> - capable = true;
> - }
> + if (shim->hdcp_capable)
> + return shim->hdcp_capable(dig_port, capable);
> +
> + if (!intel_hdcp_read_valid_bksv(dig_port, shim, bksv))
> + *capable = true;
>
> - return capable;
> + return 0;
> }
>
> /* Is HDCP2.2 capable on Platform and Sink */ -bool
> intel_hdcp2_capable(struct intel_connector *connector)
> +int intel_hdcp2_capable(struct intel_connector *connector, bool
> +*capable)
> {
> struct intel_digital_port *dig_port =
> intel_attached_dig_port(connector);
> struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> struct intel_hdcp *hdcp = &connector->hdcp;
> - bool capable = false;
> +
> + *capable = false;
>
> /* I915 support for HDCP2.2 */
> if (!hdcp->hdcp2_supported)
> - return false;
> + return 0;
>
> /* MEI interface is solid */
> mutex_lock(&dev_priv->display.hdcp.comp_mutex);
> if (!dev_priv->display.hdcp.comp_added || !dev_priv-
> >display.hdcp.master) {
> mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
> - return false;
> + return 0;
> }
> mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
>
> /* Sink's capability for HDCP2.2 */
> - hdcp->shim->hdcp_2_2_capable(dig_port, &capable);
> -
> - return capable;
> + return hdcp->shim->hdcp_2_2_capable(dig_port, capable);
> }
>
> static bool intel_hdcp_in_use(struct drm_i915_private *dev_priv, @@ -
> 2355,6 +2354,7 @@ int intel_hdcp_enable(struct intel_connector
> *connector,
> struct intel_digital_port *dig_port =
> intel_attached_dig_port(connector);
> struct intel_hdcp *hdcp = &connector->hdcp;
> unsigned long check_link_interval = DRM_HDCP_CHECK_PERIOD_MS;
> + bool capable;
> int ret = -EINVAL;
>
> if (!hdcp->shim)
> @@ -2373,21 +2373,27 @@ int intel_hdcp_enable(struct intel_connector
> *connector,
> * 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.
> */
> - if (intel_hdcp2_capable(connector)) {
> + ret = intel_hdcp2_capable(connector, &capable);
> + if (capable) {
> ret = _intel_hdcp2_enable(connector);
> - if (!ret)
> + if (!ret) {
> check_link_interval =
> DRM_HDCP2_CHECK_PERIOD_MS;
> + goto out;
> + }
> }
>
> /*
> * 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_HDCP_CONTENT_TYPE1) {
> + ret = intel_hdcp_capable(connector, &capable);
> + if (ret)
> + goto out;
> +
> + if (capable && hdcp->content_type !=
> DRM_MODE_HDCP_CONTENT_TYPE1)
> ret = _intel_hdcp_enable(connector);
> - }
>
> +out:
> if (!ret) {
> schedule_delayed_work(&hdcp->check_work,
> check_link_interval);
> intel_hdcp_update_value(connector,
> @@ -2395,7 +2401,6 @@ int intel_hdcp_enable(struct intel_connector
> *connector,
> true);
> }
Hi Mark,
These changes here in intel_hdcp_enable are not necessary as this function is getting removed entirely in the
next patch.
With that fixed
Reviewed-by: Suraj Kandpal <[email protected]>
>
> -out:
> mutex_unlock(&dig_port->hdcp_mutex);
> mutex_unlock(&hdcp->mutex);
> return ret;
> diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.h
> b/drivers/gpu/drm/i915/display/intel_hdcp.h
> index 7c5fd84a7b65a..f06f6e5a2b1ad 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdcp.h
> +++ b/drivers/gpu/drm/i915/display/intel_hdcp.h
> @@ -33,8 +33,8 @@ void intel_hdcp_update_pipe(struct intel_atomic_state
> *state,
> const struct intel_crtc_state *crtc_state,
> const struct drm_connector_state *conn_state);
> bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port
> port); -bool intel_hdcp_capable(struct intel_connector *connector); -bool
> intel_hdcp2_capable(struct intel_connector *connector);
> +int intel_hdcp_capable(struct intel_connector *connector, bool
> +*capable); int intel_hdcp2_capable(struct intel_connector *connector,
> +bool *capable);
> void intel_hdcp_component_init(struct drm_i915_private *dev_priv); void
> intel_hdcp_component_fini(struct drm_i915_private *dev_priv); void
> intel_hdcp_cleanup(struct intel_connector *connector);
> --
> 2.40.0.348.gf938b09366-goog
> -----Original Message-----
> From: Kandpal, Suraj
> Sent: Monday, April 3, 2023 12:12 PM
> To: Mark Yacoub <[email protected]>; Jani Nikula
> <[email protected]>; Joonas Lahtinen
> <[email protected]>; Vivi, Rodrigo <[email protected]>;
> Tvrtko Ursulin <[email protected]>; David Airlie
> <[email protected]>; Daniel Vetter <[email protected]>
> Cc: [email protected]; [email protected]; dri-
> [email protected]; [email protected]; intel-
> [email protected]; Nikula, Jani <[email protected]>; linux-
> [email protected]
> Subject: RE: [PATCH v8 06/10] drm/i915/hdcp: Retain hdcp_capable return
> codes
>
>
>
> > -----Original Message-----
> > From: Mark Yacoub <[email protected]>
> > Sent: Saturday, April 1, 2023 3:42 AM
> > To: Jani Nikula <[email protected]>; Joonas Lahtinen
> > <[email protected]>; Vivi, Rodrigo
> > <[email protected]>; Tvrtko Ursulin
> > <[email protected]>; David Airlie <[email protected]>;
> > Daniel Vetter <[email protected]>
> > Cc: [email protected]; Kandpal, Suraj <[email protected]>;
> > [email protected]; [email protected];
> > [email protected]; [email protected];
> > Nikula, Jani <[email protected]>; Mark Yacoub
> > <[email protected]>; linux- [email protected]
> > Subject: [PATCH v8 06/10] drm/i915/hdcp: Retain hdcp_capable return
> > codes
> >
> > From: Sean Paul <[email protected]>
> >
> > The shim functions return error codes, but they are discarded in
> > intel_hdcp.c. This patch plumbs the return codes through so they are
> > properly handled.
> >
> > Acked-by: Jani Nikula <[email protected]>
> > Reviewed-by: Rodrigo Vivi <[email protected]>
> > Signed-off-by: Sean Paul <[email protected]>
> > Signed-off-by: Mark Yacoub <[email protected]>
> >
> > ---
> > Changes in v2:
> > -None
> > Changes in v3:
> > -None
> > Changes in v4:
> > -None
> > Changes in v5:
> > -None
> > Changes in v6:
> > -Rebased
> > Changes in v7:
> > -None
> > Changes in v8:
> > -None
> >
> > .../drm/i915/display/intel_display_debugfs.c | 9 +++-
> > drivers/gpu/drm/i915/display/intel_hdcp.c | 51 ++++++++++---------
> > drivers/gpu/drm/i915/display/intel_hdcp.h | 4 +-
> > 3 files changed, 37 insertions(+), 27 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> > b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> > index 7bcd90384a46d..a14b86a07e545 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> > +++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> > @@ -494,6 +494,7 @@ static void intel_panel_info(struct seq_file *m,
> > static void intel_hdcp_info(struct seq_file *m,
> > struct intel_connector *intel_connector) {
> > + int ret;
> > bool hdcp_cap, hdcp2_cap;
> >
> > if (!intel_connector->hdcp.shim) {
> > @@ -501,8 +502,12 @@ static void intel_hdcp_info(struct seq_file *m,
> > goto out;
> > }
> >
> > - hdcp_cap = intel_hdcp_capable(intel_connector);
> > - hdcp2_cap = intel_hdcp2_capable(intel_connector);
> > + ret = intel_hdcp_capable(intel_connector, &hdcp_cap);
> > + if (ret)
> > + hdcp_cap = false;
> > + ret = intel_hdcp2_capable(intel_connector, &hdcp2_cap);
> > + if (ret)
> > + hdcp2_cap = false;
> >
> > if (hdcp_cap)
> > seq_puts(m, "HDCP1.4 ");
> > diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c
> > b/drivers/gpu/drm/i915/display/intel_hdcp.c
> > index 0a20bc41be55d..61a862ae1f286 100644
> > --- a/drivers/gpu/drm/i915/display/intel_hdcp.c
> > +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
> > @@ -177,50 +177,49 @@ int intel_hdcp_read_valid_bksv(struct
> > intel_digital_port *dig_port, }
> >
> > /* Is HDCP1.4 capable on Platform and Sink */ -bool
> > intel_hdcp_capable(struct intel_connector *connector)
> > +int intel_hdcp_capable(struct intel_connector *connector, bool
> > +*capable)
> > {
> > struct intel_digital_port *dig_port =
> > intel_attached_dig_port(connector);
> > const struct intel_hdcp_shim *shim = connector->hdcp.shim;
> > - bool capable = false;
> > u8 bksv[5];
> >
> > + *capable = false;
> > +
> > if (!shim)
> > - return capable;
> > + return 0;
> >
> > - if (shim->hdcp_capable) {
> > - shim->hdcp_capable(dig_port, &capable);
> > - } else {
> > - if (!intel_hdcp_read_valid_bksv(dig_port, shim, bksv))
> > - capable = true;
> > - }
> > + if (shim->hdcp_capable)
> > + return shim->hdcp_capable(dig_port, capable);
> > +
> > + if (!intel_hdcp_read_valid_bksv(dig_port, shim, bksv))
> > + *capable = true;
> >
> > - return capable;
> > + return 0;
> > }
> >
> > /* Is HDCP2.2 capable on Platform and Sink */ -bool
> > intel_hdcp2_capable(struct intel_connector *connector)
> > +int intel_hdcp2_capable(struct intel_connector *connector, bool
> > +*capable)
> > {
> > struct intel_digital_port *dig_port =
> > intel_attached_dig_port(connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > struct intel_hdcp *hdcp = &connector->hdcp;
> > - bool capable = false;
> > +
> > + *capable = false;
> >
> > /* I915 support for HDCP2.2 */
> > if (!hdcp->hdcp2_supported)
> > - return false;
> > + return 0;
> >
> > /* MEI interface is solid */
> > mutex_lock(&dev_priv->display.hdcp.comp_mutex);
> > if (!dev_priv->display.hdcp.comp_added || !dev_priv-
> > >display.hdcp.master) {
> > mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
> > - return false;
> > + return 0;
> > }
> > mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
> >
> > /* Sink's capability for HDCP2.2 */
> > - hdcp->shim->hdcp_2_2_capable(dig_port, &capable);
> > -
> > - return capable;
> > + return hdcp->shim->hdcp_2_2_capable(dig_port, capable);
> > }
> >
> > static bool intel_hdcp_in_use(struct drm_i915_private *dev_priv, @@ -
> > 2355,6 +2354,7 @@ int intel_hdcp_enable(struct intel_connector
> > *connector,
> > struct intel_digital_port *dig_port =
> > intel_attached_dig_port(connector);
> > struct intel_hdcp *hdcp = &connector->hdcp;
> > unsigned long check_link_interval = DRM_HDCP_CHECK_PERIOD_MS;
> > + bool capable;
> > int ret = -EINVAL;
> >
> > if (!hdcp->shim)
> > @@ -2373,21 +2373,27 @@ int intel_hdcp_enable(struct intel_connector
> > *connector,
> > * 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.
> > */
> > - if (intel_hdcp2_capable(connector)) {
> > + ret = intel_hdcp2_capable(connector, &capable);
> > + if (capable) {
> > ret = _intel_hdcp2_enable(connector);
> > - if (!ret)
> > + if (!ret) {
> > check_link_interval =
> > DRM_HDCP2_CHECK_PERIOD_MS;
> > + goto out;
> > + }
> > }
> >
> > /*
> > * 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_HDCP_CONTENT_TYPE1) {
> > + ret = intel_hdcp_capable(connector, &capable);
> > + if (ret)
> > + goto out;
> > +
> > + if (capable && hdcp->content_type !=
> > DRM_MODE_HDCP_CONTENT_TYPE1)
> > ret = _intel_hdcp_enable(connector);
> > - }
> >
> > +out:
> > if (!ret) {
> > schedule_delayed_work(&hdcp->check_work,
> > check_link_interval);
> > intel_hdcp_update_value(connector,
> > @@ -2395,7 +2401,6 @@ int intel_hdcp_enable(struct intel_connector
> > *connector,
> > true);
> > }
>
> Hi Mark,
> These changes here in intel_hdcp_enable are not necessary as this function is
> getting removed entirely in the next patch.
>
> With that fixed
>
> Reviewed-by: Suraj Kandpal <[email protected]>
>
Just to clarify I mean the addition of "goto out" I understand since you are changing the capability function
You need those changes to build this patch.
Regards,
Suraj Kandpal
> >
> > -out:
> > mutex_unlock(&dig_port->hdcp_mutex);
> > mutex_unlock(&hdcp->mutex);
> > return ret;
> > diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.h
> > b/drivers/gpu/drm/i915/display/intel_hdcp.h
> > index 7c5fd84a7b65a..f06f6e5a2b1ad 100644
> > --- a/drivers/gpu/drm/i915/display/intel_hdcp.h
> > +++ b/drivers/gpu/drm/i915/display/intel_hdcp.h
> > @@ -33,8 +33,8 @@ void intel_hdcp_update_pipe(struct
> > intel_atomic_state *state,
> > const struct intel_crtc_state *crtc_state,
> > const struct drm_connector_state *conn_state);
> bool
> > is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port);
> > -bool intel_hdcp_capable(struct intel_connector *connector); -bool
> > intel_hdcp2_capable(struct intel_connector *connector);
> > +int intel_hdcp_capable(struct intel_connector *connector, bool
> > +*capable); int intel_hdcp2_capable(struct intel_connector *connector,
> > +bool *capable);
> > void intel_hdcp_component_init(struct drm_i915_private *dev_priv);
> > void intel_hdcp_component_fini(struct drm_i915_private *dev_priv);
> > void intel_hdcp_cleanup(struct intel_connector *connector);
> > --
> > 2.40.0.348.gf938b09366-goog