From patchwork Thu Mar 20 15:59:59 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 14024114 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 43EFDC28B30 for ; Thu, 20 Mar 2025 16:00:48 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2CB0310E666; Thu, 20 Mar 2025 16:00:47 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="NTHkmRqU"; dkim-atps=neutral Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5CCE210E3B2 for ; Thu, 20 Mar 2025 16:00:36 +0000 (UTC) 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 9E655101F; Thu, 20 Mar 2025 16:58:50 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1742486331; bh=0rz+qtGwR8012ibx7Ol/9THyUm6cLrG8rh2vtI7MsMc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=NTHkmRqUive4W7hbO15NPmv0p227neoRU/cCyQS7KfcSKPoPhggNfo6lM2xwuWIKw oLHNwoIfHR+JoMXLy3xDGlXX7AowtxAaNBedntnyHF0+Cfylv23hpwZ8DgRM6tJFon YMHOmfbQbZQv2MOpRkQBtpEOF+b7GUIUlfnW6jms= From: Tomi Valkeinen Date: Thu, 20 Mar 2025 17:59:59 +0200 Subject: [PATCH 04/18] phy: cdns-dphy: Store hs_clk_rate and return it MIME-Version: 1.0 Message-Id: <20250320-cdns-dsi-impro-v1-4-725277c5f43b@ideasonboard.com> References: <20250320-cdns-dsi-impro-v1-0-725277c5f43b@ideasonboard.com> In-Reply-To: <20250320-cdns-dsi-impro-v1-0-725277c5f43b@ideasonboard.com> To: Jyri Sarha , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Vinod Koul , Kishon Vijay Abraham I , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, Francesco Dolcini , Aradhya Bhatia , Devarsh Thakkar , Tomi Valkeinen X-Mailer: b4 0.15-dev-c25d1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1212; i=tomi.valkeinen@ideasonboard.com; h=from:subject:message-id; bh=0rz+qtGwR8012ibx7Ol/9THyUm6cLrG8rh2vtI7MsMc=; b=owEBbQKS/ZANAwAIAfo9qoy8lh71AcsmYgBn3DuXTm8DWstHYZiT7ZPCrlACEVpYsmjpJd3y0 QBj5ORV2oaJAjMEAAEIAB0WIQTEOAw+ll79gQef86f6PaqMvJYe9QUCZ9w7lwAKCRD6PaqMvJYe 9SfqEACCTF2FJTxSw7IUW/P5BnGlL122hDnWa1b6I1ygMVwlK1cebNYuFukf3/TCDcYm97s8Jry KjoM6eJFPmYYFU5bma3NiWXEm8T9l9Li9PNUiUiwIAm6WE3JTvq9BBHQq537/wnu7j2VaFdpdn9 jsms8xLwSWfn4yCmuNciMZyzhmk08/+Z3vG0yg4E+prZv1MhpEiQ5OKK8aBFp5tE3rTZgtocDng 4YUykJ5nJFStwPUNVXU1r5OaH+9Ik4DosCN9ZCTLe1YeZTWEcSaRmCAv/m6z9mFbkZ0rFlGxQ4N tLlfjgEn4P6NQrM0wPi0zZydp83JDQ0v4UArB1JXicQrqbevP38/awJeiil9KGxbrf5GALMufQZ xZ48R/Z0W4MJP3DNT2QpSL2+l1LG5Ubgg7hc7AfWyQLqVYnT+4em6vQ0TFhLCCKJhuI8izBJE7A HmAn4wjTDiUu2dOxyTqR4JPP/Hwey4hjbW0OY0vwuLGNBgVI4UUs/3h/OxMGhB7NpyrQtYhOUW7 1+f2CV8f+OEytONkN/LhWcf12yTc5sj7lUf947Tv+4AXaXoTpQw8zUF0Dymd0aVJkeOqxAm5+oG y9Yr6wUuSZft2mH6Mrthrf9P+wDnIyzseOLPH1WwcPqCKdZY7GZapOtMeCMmdXrdSXAHrpOQt8n ivgFaYXPhmmkMDg== X-Developer-Key: i=tomi.valkeinen@ideasonboard.com; a=openpgp; fpr=C4380C3E965EFD81079FF3A7FA3DAA8CBC961EF5 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The DPHY driver does not return the actual hs_clk_rate, so the DSI driver has no idea what clock was actually achieved. Set the realized hs_clk_rate to the opts struct, so that the DSI driver gets it back. Signed-off-by: Tomi Valkeinen --- drivers/phy/cadence/cdns-dphy.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/phy/cadence/cdns-dphy.c b/drivers/phy/cadence/cdns-dphy.c index ed87a3970f83..f79ec4fab409 100644 --- a/drivers/phy/cadence/cdns-dphy.c +++ b/drivers/phy/cadence/cdns-dphy.c @@ -79,6 +79,7 @@ struct cdns_dphy_cfg { u8 pll_ipdiv; u8 pll_opdiv; u16 pll_fbdiv; + u32 hs_clk_rate; unsigned int nlanes; }; @@ -154,6 +155,9 @@ static int cdns_dsi_get_dphy_pll_cfg(struct cdns_dphy *dphy, cfg->pll_ipdiv, pll_ref_hz); + cfg->hs_clk_rate = div_u64((u64)pll_ref_hz * cfg->pll_fbdiv, + 2 * cfg->pll_opdiv * cfg->pll_ipdiv); + return 0; } @@ -297,6 +301,7 @@ static int cdns_dphy_config_from_opts(struct phy *phy, if (ret) return ret; + opts->hs_clk_rate = cfg->hs_clk_rate; opts->wakeup = cdns_dphy_get_wakeup_time_ns(dphy) / 1000; return 0;