[Intel-gfx] [PATCH v2] drm/i915/lnl: Remove watchdog timers for PSR

[Mika Kahola]

Currently we are not using watchdog timers for PSR/PSR2
with Lunarlake. The patch removes the use of these timers
from the driver code.

BSpec: 69895

v2: Reword commit message (Ville)
    Drop HPD mask from LNL (Ville)
    Revise masking logic (Jouni)

Signed-off-by: Mika Kahola <mika.kah...@intel.com>
---
 drivers/gpu/drm/i915/display/intel_psr.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c 
b/drivers/gpu/drm/i915/display/intel_psr.c
index 850b11f20285..abdafd04d8e3 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -676,7 +676,9 @@ static void hsw_activate_psr1(struct intel_dp *intel_dp)
 
        val |= EDP_PSR_IDLE_FRAMES(psr_compute_idle_frames(intel_dp));
 
-       val |= EDP_PSR_MAX_SLEEP_TIME(max_sleep_time);
+       if (DISPLAY_VER(dev_priv) < 20)
+               val |= EDP_PSR_MAX_SLEEP_TIME(max_sleep_time);
+
        if (IS_HASWELL(dev_priv))
                val |= EDP_PSR_MIN_LINK_ENTRY_TIME_8_LINES;
 
@@ -1399,9 +1401,11 @@ static void intel_psr_enable_source(struct intel_dp 
*intel_dp,
         * can rely on frontbuffer tracking.
         */
        mask = EDP_PSR_DEBUG_MASK_MEMUP |
-              EDP_PSR_DEBUG_MASK_HPD |
-              EDP_PSR_DEBUG_MASK_LPSP |
-              EDP_PSR_DEBUG_MASK_MAX_SLEEP;
+              EDP_PSR_DEBUG_MASK_LPSP;
+
+       if (DISPLAY_VER(dev_priv) < 20)
+               mask |= EDP_PSR_DEBUG_MASK_HPD |
+                       EDP_PSR_DEBUG_MASK_MAX_SLEEP;
 
        /*
         * No separate pipe reg write mask on hsw/bdw, so have to unmask all
-- 
2.34.1