From patchwork Tue Jan 21 10:13:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yannick FERTRE X-Patchwork-Id: 11343413 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4E131924 for ; Tue, 21 Jan 2020 10:14:09 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 2C78620882 for ; Tue, 21 Jan 2020 10:14:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=st.com header.i=@st.com header.b="ChmW7+hA" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2C78620882 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=st.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CE3B26EC40; Tue, 21 Jan 2020 10:14:05 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx07-00178001.pphosted.com (mx08-00178001.pphosted.com [91.207.212.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 123A36EC40 for ; Tue, 21 Jan 2020 10:14:03 +0000 (UTC) Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 00LA7m7m015244; Tue, 21 Jan 2020 11:14:01 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : subject : date : message-id : mime-version : content-type; s=STMicroelectronics; bh=aeYoT+FbX2uK00Gipe/mKHNPFAN0KIzPJU70uie272A=; b=ChmW7+hAhBko1pQ9BTS2bhY1LjykTUkISaGS7PWDj5KLriquSRvz+s+M9dw1XZP/Uuzb W7CtFP0PqYWrVGROSZpfw5W/vGGSpE/dQdPeVNzsgTWB5Fwq82pP6YkToiY7+0yQH4PI B0yBhCj64+gE4+LFQPIQX+mQ0us1e3rwNJkuGAnvvKsDx4nvR409uthMq1eRux7dud4a wMUwrdG+97ASDBha3lKKmSghRi0T7JC64Ro0XNi8PC2ct0z621WBZR5G0fntCYFy9ERj 7Kwn9vBT0F+k1fc/Vjiq5qZ9Q6WhtMQXMsKgjZJY92tt9suJwiV/cgPM7l0LEhZ3ak22 pw== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2xkr1dx2p6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Jan 2020 11:14:01 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id D20EC100038; Tue, 21 Jan 2020 11:13:55 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag6node1.st.com [10.75.127.16]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 7F0332B1872; Tue, 21 Jan 2020 11:13:55 +0100 (CET) Received: from localhost (10.75.127.44) by SFHDAG6NODE1.st.com (10.75.127.16) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 21 Jan 2020 11:13:54 +0100 From: Yannick Fertre To: Yannick Fertre , Philippe Cornu , Benjamin Gaignard , David Airlie , Daniel Vetter , Maxime Coquelin , Alexandre Torgue , , , , Subject: [PATCH] drm/stm: ltdc: add number of interrupts Date: Tue, 21 Jan 2020 11:13:52 +0100 Message-ID: <1579601632-7001-1-git-send-email-yannick.fertre@st.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.75.127.44] X-ClientProxiedBy: SFHDAG3NODE3.st.com (10.75.127.9) To SFHDAG6NODE1.st.com (10.75.127.16) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-01-21_02:2020-01-21, 2020-01-21 signatures=0 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 number of interrupts depends on the ltdc version. Don't try to get interrupt which not exist, avoiding kernel warning messages. Signed-off-by: Yannick Fertre Acked-by: Philippe Cornu --- drivers/gpu/drm/stm/ltdc.c | 30 +++++++++++++++--------------- drivers/gpu/drm/stm/ltdc.h | 1 + 2 files changed, 16 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index c2815e8..58092b0 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -1146,12 +1146,14 @@ static int ltdc_get_caps(struct drm_device *ddev) ldev->caps.pad_max_freq_hz = 90000000; if (ldev->caps.hw_version == HWVER_10200) ldev->caps.pad_max_freq_hz = 65000000; + ldev->caps.nb_irq = 2; break; case HWVER_20101: ldev->caps.reg_ofs = REG_OFS_4; ldev->caps.pix_fmt_hw = ltdc_pix_fmt_a1; ldev->caps.non_alpha_only_l1 = false; ldev->caps.pad_max_freq_hz = 150000000; + ldev->caps.nb_irq = 4; break; default: return -ENODEV; @@ -1251,13 +1253,21 @@ int ltdc_load(struct drm_device *ddev) reg_clear(ldev->regs, LTDC_IER, IER_LIE | IER_RRIE | IER_FUIE | IER_TERRIE); - for (i = 0; i < MAX_IRQ; i++) { + ret = ltdc_get_caps(ddev); + if (ret) { + DRM_ERROR("hardware identifier (0x%08x) not supported!\n", + ldev->caps.hw_version); + goto err; + } + + DRM_DEBUG_DRIVER("ltdc hw version 0x%08x\n", ldev->caps.hw_version); + + for (i = 0; i < ldev->caps.nb_irq; i++) { irq = platform_get_irq(pdev, i); - if (irq == -EPROBE_DEFER) + if (irq < 0) { + ret = irq; goto err; - - if (irq < 0) - continue; + } ret = devm_request_threaded_irq(dev, irq, ltdc_irq, ltdc_irq_thread, IRQF_ONESHOT, @@ -1268,16 +1278,6 @@ int ltdc_load(struct drm_device *ddev) } } - - ret = ltdc_get_caps(ddev); - if (ret) { - DRM_ERROR("hardware identifier (0x%08x) not supported!\n", - ldev->caps.hw_version); - goto err; - } - - DRM_DEBUG_DRIVER("ltdc hw version 0x%08x\n", ldev->caps.hw_version); - /* Add endpoints panels or bridges if any */ for (i = 0; i < MAX_ENDPOINTS; i++) { if (panel[i]) { diff --git a/drivers/gpu/drm/stm/ltdc.h b/drivers/gpu/drm/stm/ltdc.h index a1ad0ae..310e87f 100644 --- a/drivers/gpu/drm/stm/ltdc.h +++ b/drivers/gpu/drm/stm/ltdc.h @@ -19,6 +19,7 @@ struct ltdc_caps { const u32 *pix_fmt_hw; /* supported pixel formats */ bool non_alpha_only_l1; /* non-native no-alpha formats on layer 1 */ int pad_max_freq_hz; /* max frequency supported by pad */ + int nb_irq; /* number of hardware interrupts */ }; #define LTDC_MAX_LAYER 4