From nobody Fri Dec 19 14:04:47 2025 Received: from mail-pl1-f182.google.com (mail-pl1-f182.google.com [209.85.214.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BD4914AF66 for ; Wed, 20 Dec 2023 22:14:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="Kf1WrFjb" Received: by mail-pl1-f182.google.com with SMTP id d9443c01a7336-1d3ac87553bso1683415ad.3 for ; Wed, 20 Dec 2023 14:14:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1703110471; x=1703715271; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=ZD3VpyHhC0C+pwwNEc0NgWoPlzlh6lpsOAPY3FHREss=; b=Kf1WrFjb1PqpB9MFOq9VrDarI1CznPtHkhB1SJO3zDbPKNTLdtRHcWBlwjwmE1eV4j +z8xHDxSsXZv+17LAUzkI48jbdM52Vhos4B6tYPdi6GEiOgkrtPxWdfxBzdCt3fbHZc1 hR2F779yiEhsalGWFiKM8LxsNECs1Kt8mWusE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703110471; x=1703715271; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=ZD3VpyHhC0C+pwwNEc0NgWoPlzlh6lpsOAPY3FHREss=; b=cMWn8LZMmSbBoTskxP8Tdy9sQZYgoBsZdWAc4+3odcYsKtscUyTxgxa9azOmuziHBV MdmYi+dgLAZfv4ftoSojWZbewdF9BahVmOPPFNifFnzEG998S43kUJgtFlp5xl0g8QOn GToEYJSh5v/N2eg7jUlPIhrtviPp1k5sBMyQUeLn/aTLCu/MyKFuNR/SfiPEsJUQRdSL rw8fX3IBWRNz/iVe2DuBStdkm8/NtM7JLs0bZr+VJUXRzLtwrXqZGIVsLx68W8e7P76c xHgc8Uhn8pJhlQNLCBroFaaFjxud4QspsqF10yAMFada4+MSd36ocdXkgTgJ5BwLUd2X sDoA== X-Gm-Message-State: AOJu0Yx2Ok1z61/dpkdATycdOhrKr8XNbBi2ao+6dXhDBW/nsWg29kQ9 k0zLcIhAaeRcb/26Wsom5MoAeg== X-Google-Smtp-Source: AGHT+IE49xQhoPUy1M+E8LWgCI2XEpW3zeBU1Pxn4Yw80hEdINh2bomR+e06vtYbgIK0Lmg8RUeSPA== X-Received: by 2002:a17:903:1cc:b0:1d3:5f99:17df with SMTP id e12-20020a17090301cc00b001d35f9917dfmr8812369plh.38.1703110471046; Wed, 20 Dec 2023 14:14:31 -0800 (PST) Received: from hsinyi.sjc.corp.google.com ([2620:15c:9d:2:8e1f:dd12:809:b2c8]) by smtp.gmail.com with ESMTPSA id d14-20020a170902aa8e00b001bf52834696sm203086plr.207.2023.12.20.14.14.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Dec 2023 14:14:30 -0800 (PST) From: Hsin-Yi Wang To: Douglas Anderson Cc: Neil Armstrong , Jessica Zhang , Sam Ravnborg , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Linus Walleij , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH] drm/panel-edp: use put_sync in unprepare Date: Wed, 20 Dec 2023 14:13:11 -0800 Message-ID: <20231220221418.2610185-1-hsinyi@chromium.org> X-Mailer: git-send-email 2.43.0.472.g3155946c3a-goog Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Some edp panel requires T10 (Delay from end of valid video data transmitted by the Source device to power-off) less than 500ms. Using autosuspend with delay set as 1000 violates this requirement. Use put_sync_suspend in unprepare to meet the spec. For other cases (such as getting EDID), it still uses autosuspend. Suggested-by: Douglas Anderson Fixes: 5f04e7ce392d ("drm/panel-edp: Split eDP panels out of panel-simple") Signed-off-by: Hsin-Yi Wang Reviewed-by: Douglas Anderson --- drivers/gpu/drm/panel/panel-edp.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/pane= l-edp.c index cd05c76868e3..7d556b1bfa82 100644 --- a/drivers/gpu/drm/panel/panel-edp.c +++ b/drivers/gpu/drm/panel/panel-edp.c @@ -429,8 +429,7 @@ static int panel_edp_unprepare(struct drm_panel *panel) if (!p->prepared) return 0; =20 - pm_runtime_mark_last_busy(panel->dev); - ret =3D pm_runtime_put_autosuspend(panel->dev); + ret =3D pm_runtime_put_sync_suspend(panel->dev); if (ret < 0) return ret; p->prepared =3D false; --=20 2.43.0.472.g3155946c3a-goog