From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AH8x225c2dAR/nagneAHUzjnDyEVFu3boBTTpEqLICtx8DPHoBwACijYJja+bZ2h0kdBcPeiTt6y ARC-Seal: i=1; a=rsa-sha256; t=1517591208; cv=none; d=google.com; s=arc-20160816; b=yrzTEshuZKvzP8UzSl5XINN93qEf76Qd9MWbZPg/vo///JTEDZEl74smQ9q2gxFj6R 1hwefpOJGbOy1NljUi63f3xsoSlgy4pPB8q6HnrH3w3PAX0qBEYkz40w1DnDO+l5U2+f 5Slk8WiDrKFRbsgFIFzmASjlNc+s4+/vB2ASTQeQo2gEg4BQ04+dIAQgqoD6JXZvquk8 swH8VPNyC2QmaAlXE4vJTe0FqLpq1TWG8pc2cQrGRkXobKAmvVrrg31SI6XUMBdUPG5P +atnPBG90/SMJs2K5EtrYor5F9gVvc2wYotqC2pVdDzd70Ay0O88wmrVp2u200ZLtumh toBQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=sL7bVvNYQIhdvcJIAF01hoF8Wj35cc+v2a1PAlNoC7A=; b=z2OojimdM/nbEntp3MqTdwv8gBBjFxY8gRTgThwW45pd7iCb4MXx66UpXVvC/EY87v ekO8c/MVrzrybbvYSecbPVJRd9F78aSOak3QMDbuwXh73MNj3GVOBjI59Mm34ZEREhDz xzYxiA3iD/7L++miCX8V/3GA6qMlNXPzYitKRwQzIQipoz1SOBBIjdQkiSzeM1n6DdI5 2UKS/2gRmv31wYfY3FFQKudUDpev0sx895Kt61NzFhOk+uEZsPLHSwkUysIm6/tdGdIQ N0ajqLNffX8TM+lp9B84sz6P6eejl97fXWhMGO4usruKTv3bHoCBe8UZNSLGwyFXzOxI gSSw== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.71.90 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.71.90 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andrzej Hajda , Andrey Gusakov , Sasha Levin Subject: [PATCH 4.9 55/86] drm/bridge: tc358767: filter out too high modes Date: Fri, 2 Feb 2018 17:58:15 +0100 Message-Id: <20180202140827.398049136@linuxfoundation.org> X-Mailer: git-send-email 2.16.1 In-Reply-To: <20180202140822.679101338@linuxfoundation.org> References: <20180202140822.679101338@linuxfoundation.org> User-Agent: quilt/0.65 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1591309718911970272?= X-GMAIL-MSGID: =?utf-8?q?1591309718911970272?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Andrey Gusakov [ Upstream commit 99fc8e963a4c0203dba26a77cf737db6081bca14 ] Pixel clock limitation for DPI is 154 MHz. Do not accept modes with higher pixel clock rate. Reviewed-by: Andrzej Hajda Signed-off-by: Andrey Gusakov Signed-off-by: Andrzej Hajda Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-3-git-send-email-andrey.gusakov@cogentembedded.com Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/bridge/tc358767.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1109,7 +1109,10 @@ static bool tc_bridge_mode_fixup(struct static int tc_connector_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { - /* Accept any mode */ + /* DPI interface clock limitation: upto 154 MHz */ + if (mode->clock > 154000) + return MODE_CLOCK_HIGH; + return MODE_OK; }