drm/i915/psr: Do not write ALPM configuration for PSR1 or DP2.0 Panel Replay

No need to write ALPM configuration for DP2.0 Panel Replay or PSR1.

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240328141928.1311284-6-jouni.hogander@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 345493c8532277083d47686a88b0632e62c086c1..eef62983e9db68144c02d9cb580f849008e9482d 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -1723,7 +1723,8 @@ static void lnl_alpm_configure(struct intel_dp *intel_dp)
        struct intel_psr *psr = &intel_dp->psr;
        u32 alpm_ctl;
 
-       if (DISPLAY_VER(dev_priv) < 20)
+       if (DISPLAY_VER(dev_priv) < 20 || (!intel_dp->psr.psr2_enabled &&
+                                          !intel_dp_is_edp(intel_dp)))
                return;
 
        /*