From patchwork Mon Jul 11 09:47:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Polimera X-Patchwork-Id: 12913297 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 44BC7CCA47B for ; Mon, 11 Jul 2022 10:39:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230242AbiGKKjX (ORCPT ); Mon, 11 Jul 2022 06:39:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52342 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229739AbiGKKiu (ORCPT ); Mon, 11 Jul 2022 06:38:50 -0400 Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C917EEBD; Mon, 11 Jul 2022 02:48:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1657532914; x=1689068914; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=jeChhiyWoLcjAegHXqh/rf8PudXtR1Yc73pLcMWtrq0=; b=Qz5VugGBvsW+SrYGXxCPbopRLIn0A72jtqUFOyynkJ0wmEn1SuxpLU1m aOSKMqIK4R6yKWq4b3utwIr5joyCLtqR02tD/NdUcd4wIKWzyBkcPo2EC WYeSHpM2pZafaKJAPPhHfox15qOVCuqWQY3AcCudGWfVgQCHHJ3SOBr3t M=; Received: from ironmsg07-lv.qualcomm.com ([10.47.202.151]) by alexa-out.qualcomm.com with ESMTP; 11 Jul 2022 02:48:33 -0700 X-QCInternal: smtphost Received: from ironmsg02-blr.qualcomm.com ([10.86.208.131]) by ironmsg07-lv.qualcomm.com with ESMTP/TLS/AES256-SHA; 11 Jul 2022 02:48:32 -0700 X-QCInternal: smtphost Received: from vpolimer-linux.qualcomm.com ([10.204.67.235]) by ironmsg02-blr.qualcomm.com with ESMTP; 11 Jul 2022 15:18:08 +0530 Received: by vpolimer-linux.qualcomm.com (Postfix, from userid 463814) id CD2D43E4E; Mon, 11 Jul 2022 15:18:04 +0530 (IST) From: Vinod Polimera To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org Cc: Vinod Polimera , linux-kernel@vger.kernel.org, robdclark@gmail.com, dianders@chromium.org, swboyd@chromium.org, quic_kalyant@quicinc.com, dmitry.baryshkov@linaro.org, quic_khsieh@quicinc.com, quic_vproddut@quicinc.com, bjorn.andersson@linaro.org, quic_aravindh@quicinc.com, quic_abhinavk@quicinc.com, quic_sbillaka@quicinc.com Subject: [PATCH v5 07/10] drm/bridge: add psr support for panel bridge callbacks Date: Mon, 11 Jul 2022 15:17:57 +0530 Message-Id: <1657532880-12897-9-git-send-email-quic_vpolimer@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1657532880-12897-1-git-send-email-quic_vpolimer@quicinc.com> References: <1657532880-12897-1-git-send-email-quic_vpolimer@quicinc.com> Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This change will handle the psr entry exit cases in the panel bridge atomic callback functions. For example, the panel power should not turn off if the panel is entering psr. Signed-off-by: Sankeerth Billakanti Signed-off-by: Vinod Polimera --- drivers/gpu/drm/bridge/panel.c | 48 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c index eeb9546..9770b8c 100644 --- a/drivers/gpu/drm/bridge/panel.c +++ b/drivers/gpu/drm/bridge/panel.c @@ -112,6 +112,18 @@ static void panel_bridge_atomic_pre_enable(struct drm_bridge *bridge, struct drm_bridge_state *old_bridge_state) { struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge); + struct drm_atomic_state *atomic_state = old_bridge_state->base.state; + struct drm_encoder *encoder = bridge->encoder; + struct drm_crtc *crtc; + struct drm_crtc_state *old_crtc_state; + + crtc = drm_atomic_get_new_crtc_for_encoder(atomic_state, encoder); + if (!crtc) + return; + + old_crtc_state = drm_atomic_get_old_crtc_state(atomic_state, crtc); + if (old_crtc_state && old_crtc_state->self_refresh_active) + return; drm_panel_prepare(panel_bridge->panel); } @@ -120,6 +132,18 @@ static void panel_bridge_atomic_enable(struct drm_bridge *bridge, struct drm_bridge_state *old_bridge_state) { struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge); + struct drm_atomic_state *atomic_state = old_bridge_state->base.state; + struct drm_encoder *encoder = bridge->encoder; + struct drm_crtc *crtc; + struct drm_crtc_state *old_crtc_state; + + crtc = drm_atomic_get_new_crtc_for_encoder(atomic_state, encoder); + if (!crtc) + return; + + old_crtc_state = drm_atomic_get_old_crtc_state(atomic_state, crtc); + if (old_crtc_state && old_crtc_state->self_refresh_active) + return; drm_panel_enable(panel_bridge->panel); } @@ -128,6 +152,18 @@ static void panel_bridge_atomic_disable(struct drm_bridge *bridge, struct drm_bridge_state *old_bridge_state) { struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge); + struct drm_atomic_state *atomic_state = old_bridge_state->base.state; + struct drm_encoder *encoder = bridge->encoder; + struct drm_crtc *crtc; + struct drm_crtc_state *new_crtc_state; + + crtc = drm_atomic_get_old_crtc_for_encoder(atomic_state, encoder); + if (!crtc) + return; + + new_crtc_state = drm_atomic_get_new_crtc_state(atomic_state, crtc); + if (new_crtc_state && new_crtc_state->self_refresh_active) + return; drm_panel_disable(panel_bridge->panel); } @@ -136,6 +172,18 @@ static void panel_bridge_atomic_post_disable(struct drm_bridge *bridge, struct drm_bridge_state *old_bridge_state) { struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge); + struct drm_atomic_state *atomic_state = old_bridge_state->base.state; + struct drm_encoder *encoder = bridge->encoder; + struct drm_crtc *crtc; + struct drm_crtc_state *new_crtc_state; + + crtc = drm_atomic_get_old_crtc_for_encoder(atomic_state, encoder); + if (!crtc) + return; + + new_crtc_state = drm_atomic_get_new_crtc_state(atomic_state, crtc); + if (new_crtc_state && new_crtc_state->self_refresh_active) + return; drm_panel_unprepare(panel_bridge->panel); }