From patchwork Fri May 24 09:35:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jayesh Choudhary X-Patchwork-Id: 13672950 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 47E2EC25B74 for ; Fri, 24 May 2024 09:35:40 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2AA5410E258; Fri, 24 May 2024 09:35:39 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.b="gX6P6YzF"; dkim-atps=neutral Received: from fllv0016.ext.ti.com (fllv0016.ext.ti.com [198.47.19.142]) by gabe.freedesktop.org (Postfix) with ESMTPS id DC28710E258 for ; Fri, 24 May 2024 09:35:27 +0000 (UTC) Received: from lelv0265.itg.ti.com ([10.180.67.224]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 44O9ZE0n082222; Fri, 24 May 2024 04:35:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1716543314; bh=yNHllYLZp8VUFajO1ZSbz4JR76BCSglDPm2k6Bn2KIA=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=gX6P6YzFTFejJpJKeYuvr0RfqeRPqqIj8R2Vs7J/xpACKm9Z/W6G5lVRXqZ3nXTkD 1mVF/8hmK0orpiprTF7g8ak5RlOGBCtkNmlnYeud1qgo+SF4F6y7l4h8tyUAqkR+G5 oXduSJdUZdjMcvLK179ueoN2ipOWV69LgtWFoVB4= Received: from DLEE107.ent.ti.com (dlee107.ent.ti.com [157.170.170.37]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 44O9ZExV023870 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 24 May 2024 04:35:14 -0500 Received: from DLEE108.ent.ti.com (157.170.170.38) by DLEE107.ent.ti.com (157.170.170.37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Fri, 24 May 2024 04:35:14 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DLEE108.ent.ti.com (157.170.170.38) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Fri, 24 May 2024 04:35:14 -0500 Received: from localhost (jayesh-hp-probook-440-g8-notebook-pc.dhcp.ti.com [172.24.227.102] (may be forged)) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 44O9ZDcO040590; Fri, 24 May 2024 04:35:14 -0500 From: Jayesh Choudhary To: , , , , , , , , CC: , , , , , , Subject: [PATCH v3 2/2] drm/bridge: Add pixel clock check in atomic_check Date: Fri, 24 May 2024 15:05:09 +0530 Message-ID: <20240524093509.127189-3-j-choudhary@ti.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240524093509.127189-1-j-choudhary@ti.com> References: <20240524093509.127189-1-j-choudhary@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 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" Check the pixel clock for the mode in atomic_check and ensure that it is within the range supported by the bridge. Signed-off-by: Jayesh Choudhary --- drivers/gpu/drm/bridge/sii902x.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c index bae551e107f9..a5b7ee1e3bbe 100644 --- a/drivers/gpu/drm/bridge/sii902x.c +++ b/drivers/gpu/drm/bridge/sii902x.c @@ -517,6 +517,12 @@ static int sii902x_bridge_atomic_check(struct drm_bridge *bridge, struct drm_crtc_state *crtc_state, struct drm_connector_state *conn_state) { + if (crtc_state->mode.clock < SII902X_MIN_PIXEL_CLOCK_KHZ) + return MODE_CLOCK_LOW; + + if (crtc_state->mode.clock > SII902X_MAX_PIXEL_CLOCK_KHZ) + return MODE_CLOCK_HIGH; + /* * There might be flags negotiation supported in future but * set the bus flags in atomic_check statically for now.