From: Roman Li <roman.li@xxxxxxx> [Why] We want to block IPS2 for static screen but allow it for power state transitions. [How] Set DalDisableIPS=6 for DCN35 which allows: 1. RCG during static screen 2. RCG during LVP 3. IPS2 for display off / S0i3 Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx> Acked-by: Roman Li <roman.li@xxxxxxx> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx> Signed-off-by: Roman Li <roman.li@xxxxxxx> Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index e9044415bf1f..9220acbdf981 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1726,8 +1726,10 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) if (amdgpu_dc_debug_mask & DC_DISABLE_IPS) init_data.flags.disable_ips = DMUB_IPS_DISABLE_ALL; + else + init_data.flags.disable_ips = DMUB_IPS_RCG_IN_ACTIVE_IPS2_IN_OFF; - init_data.flags.disable_ips_in_vpb = 1; + init_data.flags.disable_ips_in_vpb = 0; /* Enable DWB for tested platforms only */ if (amdgpu_ip_version(adev, DCE_HWIP, 0) >= IP_VERSION(3, 0, 0)) -- 2.34.1
