On LunarLake maximum for IO and Fast Wake time line counts are 68: 6 bits +
5 lines added by the HW. Take this into account in calculation and when
writing the IO Wake lines.
v2: maximum line count is 68 (6 bits + 5 lines added by HW)
Signed-off-by: Jouni Högander <jouni.hogan...@intel.com>
---
drivers/gpu/drm/i915/display/intel_psr.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c
b/drivers/gpu/drm/i915/display/intel_psr.c
index df0d14a5023f..f5d3eb776833 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -1421,8 +1421,9 @@ static bool _compute_alpm_params(struct intel_dp
*intel_dp,
fast_wake_time = precharge + preamble + phy_wake +
tfw_exit_latency;
- if (DISPLAY_VER(i915) >= 12)
- /* TODO: Check how we can use ALPM_CTL fast wake extended field
*/
+ if (DISPLAY_VER(i915) >= 20)
+ max_wake_lines = 68;
+ else if (DISPLAY_VER(i915) >= 12)
max_wake_lines = 12;
else
max_wake_lines = 8;
--
2.34.1
