From patchwork Thu May 30 09:29:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jayesh Choudhary X-Patchwork-Id: 13680029 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 EA747C25B74 for ; Thu, 30 May 2024 09:29:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7143A10E407; Thu, 30 May 2024 09:29:54 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.b="toq1mGqa"; dkim-atps=neutral Received: from lelv0143.ext.ti.com (lelv0143.ext.ti.com [198.47.23.248]) by gabe.freedesktop.org (Postfix) with ESMTPS id A43C210E462 for ; Thu, 30 May 2024 09:29:45 +0000 (UTC) Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 44U9TYX1054140; Thu, 30 May 2024 04:29:34 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1717061374; bh=grJPsPNsAdWtmQ7kNsLFKUPmiUo05eQ0akmBVIgMMXA=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=toq1mGqatqqf8wW2SVuumEWK/J/KN4pnfCy2uJ/Ac+97X0RPLqhcEoAF/JN/yBKO1 /mlPUoXr9PMF0K+ZpRvQB2ESEgfFhHW6rPcuuRZVQHjIpgwmPEE4fZnzoQhfvA02CM RTNIQQCx9mKr6J9PW3XUz0PB4f3CM7isJYjYcmds= Received: from DLEE104.ent.ti.com (dlee104.ent.ti.com [157.170.170.34]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 44U9TYbK124245 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 30 May 2024 04:29:34 -0500 Received: from DLEE104.ent.ti.com (157.170.170.34) by DLEE104.ent.ti.com (157.170.170.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Thu, 30 May 2024 04:29:34 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DLEE104.ent.ti.com (157.170.170.34) 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; Thu, 30 May 2024 04:29:34 -0500 Received: from localhost (jayesh-hp-probook-440-g8-notebook-pc.dhcp.ti.com [172.24.227.102]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 44U9TXSx074224; Thu, 30 May 2024 04:29:34 -0500 From: Jayesh Choudhary To: , , , , , , , , CC: , , , , , , , Subject: [PATCH v4 2/2] drm/bridge: Add pixel clock check in atomic_check Date: Thu, 30 May 2024 14:59:30 +0530 Message-ID: <20240530092930.434026-3-j-choudhary@ti.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240530092930.434026-1-j-choudhary@ti.com> References: <20240530092930.434026-1-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 6a6055a4ccf9..1bf2f14a772d 100644 --- a/drivers/gpu/drm/bridge/sii902x.c +++ b/drivers/gpu/drm/bridge/sii902x.c @@ -494,6 +494,12 @@ 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.