C10 phy timeouts occur on xe3lpd if the c10 bus is reset every transaction. Starting with xe3lpd this is bus reset not necessary Signed-off-by: Clint Taylor <clinton.a.taylor@xxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_cx0_phy.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c index c1357bdb8a3b..a8966a7a9927 100644 --- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c +++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c @@ -224,7 +224,8 @@ static int __intel_cx0_read_once(struct intel_encoder *encoder, * down and let the message bus to end up * in a known state */ - intel_cx0_bus_reset(encoder, lane); + if ((DISPLAY_VER(i915) >= 30)) + intel_cx0_bus_reset(encoder, lane); return REG_FIELD_GET(XELPDP_PORT_P2M_DATA_MASK, val); } @@ -313,7 +314,8 @@ static int __intel_cx0_write_once(struct intel_encoder *encoder, * down and let the message bus to end up * in a known state */ - intel_cx0_bus_reset(encoder, lane); + if ((DISPLAY_VER(i915) >= 30)) + intel_cx0_bus_reset(encoder, lane); return 0; } -- 2.25.1
