From: Sean Paul <sean@poorly.run>
To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org
Cc: daniel.vetter@ffwll.ch, seanpaul@chromium.org,
juston.li@intel.com, rodrigo.vivi@intel.com
Subject: [PATCH v6 03/16] drm/i915: WARN if HDCP signalling is enabled upon disable
Date: Wed, 29 Apr 2020 15:54:49 -0400 [thread overview]
Message-ID: <20200429195502.39919-4-sean@poorly.run> (raw)
In-Reply-To: <20200429195502.39919-1-sean@poorly.run>
From: Sean Paul <seanpaul@chromium.org>
HDCP signalling should not be left on, WARN if it is
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191212190230.188505-4-sean@poorly.run #v2
Link: https://patchwork.freedesktop.org/patch/msgid/20200117193103.156821-4-sean@poorly.run #v3
Link: https://patchwork.freedesktop.org/patch/msgid/20200218220242.107265-4-sean@poorly.run #v4
Link: https://patchwork.freedesktop.org/patch/msgid/20200305201236.152307-4-sean@poorly.run #v5
Changes in v2:
-Added to the set in lieu of just clearing the bit
Changes in v3:
-None
Changes in v4:
-None
Changes in v5:
-Change WARN_ON to drm_WARN_ON
Changes in v6:
-None
---
drivers/gpu/drm/i915/display/intel_ddi.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 5601673c3f30..08844ba9dcb5 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -1663,6 +1663,8 @@ void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state
ctl = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
+ drm_WARN_ON(crtc->base.dev, ctl & TRANS_DDI_HDCP_SIGNALLING);
+
ctl &= ~TRANS_DDI_FUNC_ENABLE;
if (IS_GEN_RANGE(dev_priv, 8, 10))
--
Sean Paul, Software Engineer, Google / Chromium OS
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2020-04-29 19:55 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-29 19:54 [PATCH v6 00/16] drm/i915: Add support for HDCP 1.4 over MST connectors Sean Paul
2020-04-29 19:54 ` [PATCH v6 01/16] drm/i915: Fix sha_text population code Sean Paul
2020-05-01 2:55 ` Sasha Levin
2020-05-06 14:00 ` Ramalingam C
2020-04-29 19:54 ` [PATCH v6 02/16] drm/i915: Clear the repeater bit on HDCP disable Sean Paul
2020-05-01 2:55 ` Sasha Levin
2020-05-06 14:02 ` Ramalingam C
2020-04-29 19:54 ` Sean Paul [this message]
2020-05-06 14:18 ` [PATCH v6 03/16] drm/i915: WARN if HDCP signalling is enabled upon disable Ramalingam C
2020-04-29 19:54 ` [PATCH v6 04/16] drm/i915: Intercept Aksv writes in the aux hooks Sean Paul
2020-05-06 14:13 ` Ramalingam C
2020-04-29 19:54 ` [PATCH v6 05/16] drm/i915: Use the cpu_transcoder in intel_hdcp to toggle HDCP signalling Sean Paul
2020-04-29 19:54 ` [PATCH v6 06/16] drm/i915: Factor out hdcp->value assignments Sean Paul
2020-04-29 19:54 ` [PATCH v6 07/16] drm/i915: Protect workers against disappearing connectors Sean Paul
2020-04-29 19:54 ` [PATCH v6 08/16] drm/i915: Don't fully disable HDCP on a port if multiple pipes are using it Sean Paul
2020-05-15 12:39 ` Ramalingam C
2020-04-29 19:54 ` [PATCH v6 09/16] drm/i915: Support DP MST in enc_to_dig_port() function Sean Paul
2020-04-29 19:54 ` [PATCH v6 10/16] drm/i915: Use ddi_update_pipe in intel_dp_mst Sean Paul
2020-04-29 19:54 ` [PATCH v6 11/16] drm/i915: Factor out HDCP shim functions from dp for use by dp_mst Sean Paul
2020-04-29 19:54 ` [PATCH v6 12/16] drm/i915: Plumb port through hdcp init Sean Paul
2020-04-29 19:54 ` [PATCH v6 13/16] drm/i915: Add connector to hdcp_shim->check_link() Sean Paul
2020-04-29 19:55 ` [PATCH v6 14/16] drm/mst: Add support for QUERY_STREAM_ENCRYPTION_STATUS MST sideband message Sean Paul
2020-04-29 19:55 ` [PATCH v6 15/16] drm/i915: Print HDCP version info for all connectors Sean Paul
2020-04-29 19:55 ` [PATCH v6 16/16] drm/i915: Add HDCP 1.4 support for MST connectors Sean Paul
2020-05-15 14:42 ` Ramalingam C
2020-06-18 18:20 ` Sean Paul
2020-05-15 14:48 ` [PATCH v6 00/16] drm/i915: Add support for HDCP 1.4 over " Ramalingam C
2020-05-18 14:32 ` Sean Paul
2020-05-18 16:41 ` Ramalingam C
2020-05-20 13:11 ` Sean Paul
2020-05-26 10:38 ` Ramalingam C
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200429195502.39919-4-sean@poorly.run \
--to=sean@poorly.run \
--cc=daniel.vetter@ffwll.ch \
--cc=dri-devel@lists.freedesktop.org \
--cc=intel-gfx@lists.freedesktop.org \
--cc=juston.li@intel.com \
--cc=rodrigo.vivi@intel.com \
--cc=seanpaul@chromium.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).