[PATCH v4 2/4] drm/i915/display/adlp: Adjust MBUS DBOX BW and B credits

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Caz Yokoyama <caz.yokoyama@xxxxxxxxx>

Alderlake-P has different MBUS DBOX BW and B credits than other
platforms, so here setting it properly.

BSpec: 49213
BSpec: 50343
Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@xxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Caz Yokoyama <caz.yokoyama@xxxxxxxxx>
Signed-off-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
---
 drivers/gpu/drm/i915/display/intel_display.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 234f363aad651..389a3c988dc6f 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -1844,7 +1844,10 @@ static void icl_pipe_mbus_enable(struct intel_crtc *crtc, bool joined_mbus)
 	else
 		val |= MBUS_DBOX_A_CREDIT(2);
 
-	if (DISPLAY_VER(dev_priv) >= 12) {
+	if (IS_ALDERLAKE_P(dev_priv)) {
+		val |= MBUS_DBOX_BW_CREDIT(2);
+		val |= MBUS_DBOX_B_CREDIT(8);
+	} else if (DISPLAY_VER(dev_priv) >= 12) {
 		val |= MBUS_DBOX_BW_CREDIT(2);
 		val |= MBUS_DBOX_B_CREDIT(12);
 	} else {
-- 
2.35.1




[Index of Archives]     [AMD Graphics]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux