From patchwork Mon Jul 11 12:57:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Polimera X-Patchwork-Id: 12913727 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EF8B9C43334 for ; Mon, 11 Jul 2022 12:57:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4B87C8914F; Mon, 11 Jul 2022 12:57:41 +0000 (UTC) Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id 38B9C8E542; Mon, 11 Jul 2022 12:57:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1657544257; x=1689080257; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=jeChhiyWoLcjAegHXqh/rf8PudXtR1Yc73pLcMWtrq0=; b=YopvzuQU+3JNucP87AaA/eiW8DtEKgvxTEnCieZuRDFR/Y2+AL2mB5Xp 13uEx2L6P4TuWrT9Duy4c0qhXQRPPqxrtgcGS9/Gs+xogaQBXwIT3+jbP 9OKHwCx38xm/Kw8ZQv8LBVuRVs10wM6A2X5wPgh8LY14RUBX2ThfKnv0v M=; Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 11 Jul 2022 05:57:37 -0700 X-QCInternal: smtphost Received: from ironmsg02-blr.qualcomm.com ([10.86.208.131]) by ironmsg09-lv.qualcomm.com with ESMTP/TLS/AES256-SHA; 11 Jul 2022 05:57:36 -0700 X-QCInternal: smtphost Received: from vpolimer-linux.qualcomm.com ([10.204.67.235]) by ironmsg02-blr.qualcomm.com with ESMTP; 11 Jul 2022 18:27:11 +0530 Received: by vpolimer-linux.qualcomm.com (Postfix, from userid 463814) id 5721F3E4C; Mon, 11 Jul 2022 18:27:07 +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 Subject: [PATCH v6 07/10] drm/bridge: add psr support for panel bridge callbacks Date: Mon, 11 Jul 2022 18:27:01 +0530 Message-Id: <1657544224-10680-8-git-send-email-quic_vpolimer@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1657544224-10680-1-git-send-email-quic_vpolimer@quicinc.com> References: <1657544224-10680-1-git-send-email-quic_vpolimer@quicinc.com> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: quic_kalyant@quicinc.com, quic_sbillaka@quicinc.com, quic_abhinavk@quicinc.com, quic_vproddut@quicinc.com, quic_khsieh@quicinc.com, dianders@chromium.org, linux-kernel@vger.kernel.org, bjorn.andersson@linaro.org, dmitry.baryshkov@linaro.org, quic_aravindh@quicinc.com, swboyd@chromium.org, Vinod Polimera Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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); }