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| author | Jouni Högander <jouni.hogander@intel.com> | 2024-05-17 10:30:03 +0300 |
|---|---|---|
| committer | Jouni Högander <jouni.hogander@intel.com> | 2024-05-20 07:34:45 +0300 |
| commit | 45430e7b7c8de9ed910d99cc8906db3db5a1334d (patch) | |
| tree | f9a91a061ede07280014121f3ecd7b7949d47b6c /drivers/gpu/drm/i915/display/intel_psr.c | |
| parent | 007ed70831426d4cc108d879d688de6b8e3e6d45 (diff) | |
| download | linux-45430e7b7c8de9ed910d99cc8906db3db5a1334d.tar.gz linux-45430e7b7c8de9ed910d99cc8906db3db5a1334d.tar.bz2 linux-45430e7b7c8de9ed910d99cc8906db3db5a1334d.zip | |
drm/i915/psr: LunarLake IO and Fast Wake time line count maximums are 68
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.hogander@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240517073005.2414293-2-jouni.hogander@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_psr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_psr.c | 5 |
1 files 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; |