From nobody Thu Apr 2 18:53:48 2026 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5BDF6283FEA for ; Fri, 27 Mar 2026 10:52:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774608723; cv=none; b=ZBJ7SFNu+oqYiitfH6pkCkkkJsu5TxdQhX//aQD3Azfwyj0iYmxAjfw8nvc487sfqWatqsWcjRP937dGVtUUgkGM92A10wdDXUzcygyYL3UBo463WmbAq72MFlsu28CrhMhpy1gBZLWXfKU3EzNskQmnVW19krw+RjuMctSXhss= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774608723; c=relaxed/simple; bh=iK79vSGxmns2y2FFs/BykcdWu6MRhpA8TvBzjd9/I/M=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=C/8szFkNdtEaQ62C6zsqxXwPm4A9TEHyBltG/DTCH222/CvKGxfkqrJLeTuOxeE8i7OzsnJVTFHrhW2zJDZIyC3XwO56/llOGXROC/Ts9uITtc4XphjVxxVjTjNavcNGHCG6tSlTLrPAToAeIvC+jZ8av23Zf/KHNsXSgE175nk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=rkdjajjV; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="rkdjajjV" Received: from [127.0.1.1] (91-158-153-178.elisa-laajakaista.fi [91.158.153.178]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 4074A1E31; Fri, 27 Mar 2026 11:50:40 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1774608641; bh=iK79vSGxmns2y2FFs/BykcdWu6MRhpA8TvBzjd9/I/M=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=rkdjajjV7dauI7qvaKKrUIvoN953EQ1gmEU7kX1RBWR+Whry6Yi2b4BBZoldrYzsP 4DQsy1skdBi9BHq3Z5n3ZaWe44SI7vSWcSbl/2Gl+BMWvb40yo7DeFasXXdZdSDbEr vhxVX1pVSEbxT7o/GIxD2Pc4SO0g5c02X5NBMbSw= From: Tomi Valkeinen Date: Fri, 27 Mar 2026 12:51:39 +0200 Subject: [PATCH 1/3] drm/bridge: cdns-dsi: Add clk debug print 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: <20260327-cdns-dsi-fixes-v1-1-088edd40e97f@ideasonboard.com> References: <20260327-cdns-dsi-fixes-v1-0-088edd40e97f@ideasonboard.com> In-Reply-To: <20260327-cdns-dsi-fixes-v1-0-088edd40e97f@ideasonboard.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Devarsh Thakkar , Tomi Valkeinen X-Mailer: b4 0.15-dev-c25d1 X-Developer-Signature: v=1; a=openpgp-sha256; l=945; i=tomi.valkeinen@ideasonboard.com; h=from:subject:message-id; bh=iK79vSGxmns2y2FFs/BykcdWu6MRhpA8TvBzjd9/I/M=; b=owEBbQKS/ZANAwAIAfo9qoy8lh71AcsmYgBpxmFNAjSXelPoigvgol7U1vdg/UXL4cgAw3uG0 mrgVEma68SJAjMEAAEIAB0WIQTEOAw+ll79gQef86f6PaqMvJYe9QUCacZhTQAKCRD6PaqMvJYe 9eMeD/4+S9jr3GmmvKtWcBmcHzDSzOm7gP93cuQ9Pe2sCQCf9xlRyW1OkjNYQGuXH+ibLghlddJ 1pOeDQdG5kzJvDk1aRlyKNmecdd/V/Mu2nfn+FVwjx0s/uBGhC9bYLme8oo8s2HgtQr4UaQUF9M IIr0Cz0Mz6/35Ywpz5Henfyx9E7sDQ9ZLAfK98xEK4/3AieLT61UZdUyOMfrSjf8+EEV7960gqR rKshxfIaVdpA8Ia9SVuqN+Xr/kHAR7p40fKmZZHPM8CLVaS5HSqAEq7xRHoPv0nYPy6+18ExCdh 90j5k9jePyeiLoYueStALLfwUBOQPGdyWmHrQrKlJfbodYaVPkllqmf2BjsqJ6CxcMK4+C8xpkV nwsy3RyW1tpumJPjoY3O6LoDqE3/J1Rm79cku9WkMATb+3LHZ6rJfdYpZ2YZSOy72iF13Ahz7Ja V8G0zJbanTMn3I27C5yUOAMk12hArzuK95zfWamwzOA6O7fy1awuBGo/GOe98k0H6bfALnhyd4g 8/Z6EZ6O1VbrhX2BqNcWh4W/SrapdQbiqr7L8oZ1urIbq7rJOMbVFp7D8axImgF0xt+1QcpZ2/h QRBifAJuULk+3CjC+II80Zjedaib3qhti+APpml+t8PzK6vBnMDP+X9y30TTyeiW2hBU4jw/vQ4 DvQBFh1I9fjFSYg== X-Developer-Key: i=tomi.valkeinen@ideasonboard.com; a=openpgp; fpr=C4380C3E965EFD81079FF3A7FA3DAA8CBC961EF5 I keep adding this debug print while debugging panel problems. So let's add it properly. Signed-off-by: Tomi Valkeinen --- drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c b/drivers/gpu/d= rm/bridge/cadence/cdns-dsi-core.c index 0dd85e26248c..2c86bf346fea 100644 --- a/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c +++ b/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c @@ -718,6 +718,9 @@ static void cdns_dsi_bridge_atomic_pre_enable(struct dr= m_bridge *bridge, u32 tmp, reg_wakeup, div, status; int nlanes; =20 + dev_dbg(dsi->base.dev, "bitclk %lu, byteclk %lu\n", + phy_cfg->hs_clk_rate, phy_cfg->hs_clk_rate / 8); + /* * The cdns-dsi controller needs to be enabled before it's DPI source * has begun streaming. If this is not followed, there is a brief window --=20 2.43.0