| commit | 3bb47e2cd0a1b7dc769f46ff0e7ee77b80ec9a3e | [log] [tgz] |
|---|---|---|
| author | Ramalingam C <[email protected]> | Thu Jan 18 05:48:08 2018 |
| committer | ChromeOS Commit Bot <[email protected]> | Mon Jan 22 16:55:47 2018 |
| tree | 86f9974fc2aa3afeb2d5fee79b3b41f0130fa74d | |
| parent | bcd8c48d50e6b2ab17ca40b6a0ae51b3a032b4f7 [diff] |
UPSTREAM: drm/i915: Check for downstream topology errors HDCP compliant Repeaters can support max of 127 devices and max depth of 7 for downstream topology. If these max limits are exceeded, repeater will set the topology error flags MAX_CASCADE_EXCEEDED and/or MAX_DEVS_EXCEEDED in Bstatus followed by asserting READY/CP_IRQ for HDCP transmitter. This patch check for these error flags as soon as READY bit is asserted. Signed-off-by: Ramalingam C <[email protected]> [seanpaul fixed checkpatch alignment issue] Signed-off-by: Sean Paul <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] (cherry picked from commit 49d85d034268ab9d9156ff6f81cc07d4caad03f6) Signed-off-by: Sean Paul <[email protected]> Change-Id: I366ca1f946813854a06418e4923a922b2a8fe404 Reviewed-on: https://chromium-review.googlesource.com/877083 Commit-Ready: Sean Paul <[email protected]> Tested-by: Sean Paul <[email protected]> Reviewed-by: Kristian H. Kristensen <[email protected]> Reviewed-on: https://chromium-review.googlesource.com/878779 Reviewed-by: Sean Paul <[email protected]> Commit-Queue: Sean Paul <[email protected]>