From nobody Tue Oct 7 22:58:35 2025 Received: from layka.disroot.org (layka.disroot.org [178.21.23.139]) (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 BEB352BCF45; Sun, 6 Jul 2025 18:27:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.21.23.139 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751826455; cv=none; b=F+m0UvFszOy5DwUaUBKQ7A5YoRASqfcilcD1vBOz50nkjKp3xu/xLg85IV2AMe3EzRjr9zY0jRoOyiVxUjP4Ovt2jORQUt6rb3nUXF2dU/frsLVGb4fl/H+afQmBgKgEiTRzv4oHluia4TUYl44HvcE0E1TSCMqbET2VuRPnMEM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751826455; c=relaxed/simple; bh=/7UL4ms+gjpMt6uhXR9N+rIp3nhF1KO7BfGN1Lj06lU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Jugf0hSPTKoFNV50QKrWIu3O6J1txwXJcN/D7H3KFcD6O1HZ33IVZnMny0sidDEFupUnqPiaQtfrab269SdVAgrrjpFyBehBXY4NgLi5ilFJNCWG5o2SmiTesLyJ2AIssmZdvhM0mc+wnw15Ux5BaRMWXG8bM8UluyhhQH0ZgOg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=disroot.org; spf=pass smtp.mailfrom=disroot.org; dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org header.b=SqP4oBgx; arc=none smtp.client-ip=178.21.23.139 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=disroot.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=disroot.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org header.b="SqP4oBgx" Received: from mail01.disroot.lan (localhost [127.0.0.1]) by disroot.org (Postfix) with ESMTP id 8463E20E83; Sun, 6 Jul 2025 20:27:32 +0200 (CEST) X-Virus-Scanned: SPAM Filter at disroot.org Received: from layka.disroot.org ([127.0.0.1]) by localhost (disroot.org [127.0.0.1]) (amavis, port 10024) with ESMTP id sPeWxYDZmk0M; Sun, 6 Jul 2025 20:27:31 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail; t=1751826451; bh=/7UL4ms+gjpMt6uhXR9N+rIp3nhF1KO7BfGN1Lj06lU=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=SqP4oBgxniiirLF4lByVeRwrrXqzYc9CwMgBXsG2mqedb9SmIU8Gm5REq7mUz2hGu jnRai8J2RZyli5gMfOoLRX483+N9EgevCOpwcE2wnJkNKoyfvNv9vOuP7mLLWJYXyo qiqvHOun77SnRqtXcvHZelVrgeT8xOQmUpApQtJkPODdGz2VbtbaUfwFquKInAUDv0 x+VsllVmxQjPEe6goODzgOZA6DALHU/7CNXZ1y80NQ8irv9HLoxmDfcOZ/So5Un94k k0L7jv70lV+KMotrYasVgoOpLX1OKT8WSG7lpu7rwkGyOKKTz6yKmB8YbtvYq0Mmwc wG/H4BMo9jMFw== From: Kaustabh Chakraborty Date: Sun, 06 Jul 2025 23:55:43 +0530 Subject: [PATCH v3 09/13] drm/bridge: samsung-dsim: increase timeout value for PLL_STABLE Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250706-exynos7870-dsim-v3-9-9879fb9a644d@disroot.org> References: <20250706-exynos7870-dsim-v3-0-9879fb9a644d@disroot.org> In-Reply-To: <20250706-exynos7870-dsim-v3-0-9879fb9a644d@disroot.org> To: Inki Dae , Jagan Teki , Marek Szyprowski , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, Kaustabh Chakraborty X-Developer-Signature: v=1; a=ed25519-sha256; t=1751826342; l=926; i=kauschluss@disroot.org; s=20250202; h=from:subject:message-id; bh=/7UL4ms+gjpMt6uhXR9N+rIp3nhF1KO7BfGN1Lj06lU=; b=TS3mOOgp55WLg7w/Tz0GSENrnAXwnPXDbPcHk6ymGFpCUOyoOZYAcucvh+T5uKf5Bd6NiFGGr Z/fpLs8iRdeDvXfNfF2dml/XWNlAdVd1wL8HX1+9M/cVZTc5tEvoD7N X-Developer-Key: i=kauschluss@disroot.org; a=ed25519; pk=h2xeR+V2I1+GrfDPAhZa3M+NWA0Cnbdkkq1bH3ct1hE= Exynos7870's DSIM requires more time to stabilize its PLL. The current timeout value, 1000, doesn't suffice. Increase the value to 3000, which is just about enough as observed experimentally. Signed-off-by: Kaustabh Chakraborty --- drivers/gpu/drm/bridge/samsung-dsim.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge= /samsung-dsim.c index fb2cb09cfd5a4f2fb50f802dc434c0956107b4e9..4b49707730db76aa8fd3ab973b0= 2507436750889 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -755,7 +755,7 @@ static unsigned long samsung_dsim_set_pll(struct samsun= g_dsim *dsi, =20 samsung_dsim_write(dsi, DSIM_PLLCTRL_REG, reg); =20 - timeout =3D 1000; + timeout =3D 3000; do { if (timeout-- =3D=3D 0) { dev_err(dsi->dev, "PLL failed to stabilize\n"); --=20 2.49.0