From: José Roberto de Souza Date: Tue, 9 Feb 2021 18:14:37 +0000 (-0800) Subject: drm/i915/display: Only write to register in intel_psr2_program_trans_man_trk_ctl() X-Git-Tag: v5.13-rc1~123^2~13^2~45 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=774ab4ff15c020f5b38b45958ee22193d06a17d7;p=thirdparty%2Fkernel%2Flinux.git drm/i915/display: Only write to register in intel_psr2_program_trans_man_trk_ctl() There is no support for two pipes one transcoder for PSR and if we had that the current code should not use cpu_transcoder. Also I can't see a scenario where crtc_state->enable_psr2_sel_fetch is set and PSR is not enabled and if by a bug it happens PSR HW will just ignore any value in set in PSR2_MAN_TRK_CTL. So dropping all the rest and keeping the same behavior that we have with intel_psr2_program_plane_sel_fetch(). Cc: Gwan-gyeong Mun Signed-off-by: José Roberto de Souza Reviewed-by: Gwan-gyeong Mun Link: https://patchwork.freedesktop.org/patch/msgid/20210209181439.215104-2-jose.souza@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 848be0228106c..7ce4feaf18a17 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -1227,23 +1227,13 @@ void intel_psr2_program_plane_sel_fetch(struct intel_plane *plane, void intel_psr2_program_trans_man_trk_ctl(const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); - struct intel_encoder *encoder; if (!HAS_PSR2_SEL_FETCH(dev_priv) || !crtc_state->enable_psr2_sel_fetch) return; - for_each_intel_encoder_mask_with_psr(&dev_priv->drm, encoder, - crtc_state->uapi.encoder_mask) { - struct intel_dp *intel_dp = enc_to_intel_dp(encoder); - - if (!intel_dp->psr.enabled) - continue; - - intel_de_write(dev_priv, - PSR2_MAN_TRK_CTL(crtc_state->cpu_transcoder), - crtc_state->psr2_man_track_ctl); - } + intel_de_write(dev_priv, PSR2_MAN_TRK_CTL(crtc_state->cpu_transcoder), + crtc_state->psr2_man_track_ctl); } static void psr2_man_trk_ctl_calc(struct intel_crtc_state *crtc_state,