diff options
| author | Imre Deak <imre.deak@intel.com> | 2026-02-25 19:46:07 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2026-03-03 18:49:06 +0300 |
| commit | e0f252bb36dea780971af4736622d2c7be60d122 (patch) | |
| tree | d8e9c573c4b465e6d5a96698453b63774465b08c | |
| parent | 21bd63282215c515e914da4d15c137af737e115b (diff) | |
| download | linux-e0f252bb36dea780971af4736622d2c7be60d122.tar.xz | |
drm/i915/dp: Fix the device service IRQ DPCD_REV check
The DP_DEVICE_SERVICE_IRQ_VECTOR DPCD register is supported since DPCD
REV 1.0, so read it out always. Flags added only by later DPCD revisions
are defined as reserved/must-be-zero by earlier DP Standard versions.
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260225164618.1261368-10-imre.deak@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 4ecf5f6699f6..f04f15e15849 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -5790,9 +5790,6 @@ static void intel_dp_check_device_service_irq(struct intel_dp *intel_dp) struct intel_display *display = to_intel_display(intel_dp); u8 val; - if (intel_dp->dpcd[DP_DPCD_REV] < 0x11) - return; - if (drm_dp_dpcd_readb(&intel_dp->aux, DP_DEVICE_SERVICE_IRQ_VECTOR, &val) != 1 || !val) return; |