TGL PSR2 hardware tracking shows momentary flicker and screen shift if TGL Display stepping is B1 from A0. It has been fixed from TGL Display stepping C0.
HSDES: 18015970021 HSDES: 2209313811 BSpec: 55378 v2: Add checking of PSR2 manual tracking (Jose) Cc: José Roberto de Souza <[email protected]> Signed-off-by: Gwan-gyeong Mun <[email protected]> --- drivers/gpu/drm/i915/display/intel_psr.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 4ad756e238c5..17cbdd7805a2 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -817,6 +817,13 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp, } } + /* Wa_2209313811 */ + if (!crtc_state->enable_psr2_sel_fetch && + IS_TGL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B1)) { + drm_dbg_kms(&dev_priv->drm, "PSR2 HW tracking is not supported this Display stepping\n"); + return false; + } + if (!crtc_state->enable_psr2_sel_fetch && (crtc_hdisplay > psr_max_h || crtc_vdisplay > psr_max_v)) { drm_dbg_kms(&dev_priv->drm, -- 2.30.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
