[PATCH v2 23/32] drm/i915/xe3p_lpd: Reload DMC MMIO for pipes C and D

[Gustavo Sousa <gustavo.sousa@intel.com>]

Xe3p_LPD has the same behavior as for Xe3_LPD with respect to DMC
context data for pipes C and D, which are lost when their power wells
are disabled.  As such, let's extend the condition for Xe3_LPD in
need_pipedmc_load_mmio() to also catch Xe3p_LPD.

Bspec: 68851
Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dmc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c
index 098061c6bf2c..8b8ed84c6a4b 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc.c
+++ b/drivers/gpu/drm/i915/display/intel_dmc.c
@@ -673,11 +673,11 @@ static bool need_pipedmc_load_program(struct intel_display *display)
 static bool need_pipedmc_load_mmio(struct intel_display *display, enum pipe pipe)
 {
 	/*
-	 * PTL:
+	 * Xe3_LPD/Xe3p_LPD:
 	 * - pipe A/B DMC doesn't need save/restore
 	 * - pipe C/D DMC is in PG0, needs manual save/restore
 	 */
-	if (DISPLAY_VER(display) == 30)
+	if (IS_DISPLAY_VER(display, 30, 35))
 		return pipe >= PIPE_C;
 
 	/*

-- 
2.51.0