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Wed, 24 Apr 2019 16:03:30 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 464C334; Wed, 24 Apr 2019 14:03:30 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas21.st.com [10.75.90.44]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 2B22F2726; Wed, 24 Apr 2019 14:03:30 +0000 (GMT) Received: from SAFEX1HUBCAS23.st.com (10.75.90.47) by SAFEX1HUBCAS21.st.com (10.75.90.44) with Microsoft SMTP Server (TLS) id 14.3.361.1; Wed, 24 Apr 2019 16:03:29 +0200 Received: from localhost (10.201.23.25) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.439.0; Wed, 24 Apr 2019 16:03:29 +0200 From: Fabien Dessenne To: Yannick Fertre , Philippe Cornu , Benjamin Gaignard , Vincent Abriou , David Airlie , Daniel Vetter , Maxime Coquelin , Alexandre Torgue , , , , Subject: [PATCH 1/2] drm/stm: ltdc: manage the get_irq probe defer case Date: Wed, 24 Apr 2019 16:03:20 +0200 Message-ID: <1556114601-30936-2-git-send-email-fabien.dessenne@st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1556114601-30936-1-git-send-email-fabien.dessenne@st.com> References: <1556114601-30936-1-git-send-email-fabien.dessenne@st.com> MIME-Version: 1.0 X-Originating-IP: [10.201.23.25] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-04-24_09:, , signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190424_070339_699522_CB262748 X-CRM114-Status: GOOD ( 12.84 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fabien Dessenne Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Manage the -EPROBE_DEFER error case for the ltdc IRQ. Signed-off-by: Fabien Dessenne Acked-by: Philippe Cornu --- drivers/gpu/drm/stm/ltdc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index 566b0d8..521ba83 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -1174,6 +1174,9 @@ int ltdc_load(struct drm_device *ddev) for (i = 0; i < MAX_IRQ; i++) { irq = platform_get_irq(pdev, i); + if (irq == -EPROBE_DEFER) + goto err; + if (irq < 0) continue; From patchwork Wed Apr 24 14:03:21 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabien DESSENNE X-Patchwork-Id: 10914885 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EC7401515 for ; Wed, 24 Apr 2019 14:04:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DB6B028A26 for ; 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Wed, 24 Apr 2019 14:03:31 +0000 (GMT) Received: from SAFEX1HUBCAS23.st.com (10.75.90.47) by Safex1hubcas22.st.com (10.75.90.92) with Microsoft SMTP Server (TLS) id 14.3.361.1; Wed, 24 Apr 2019 16:03:31 +0200 Received: from localhost (10.201.23.25) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.439.0; Wed, 24 Apr 2019 16:03:31 +0200 From: Fabien Dessenne To: Yannick Fertre , Philippe Cornu , Benjamin Gaignard , Vincent Abriou , David Airlie , Daniel Vetter , Maxime Coquelin , Alexandre Torgue , , , , Subject: [PATCH 2/2] drm/stm: ltdc: return appropriate error code during probe Date: Wed, 24 Apr 2019 16:03:21 +0200 Message-ID: <1556114601-30936-3-git-send-email-fabien.dessenne@st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1556114601-30936-1-git-send-email-fabien.dessenne@st.com> References: <1556114601-30936-1-git-send-email-fabien.dessenne@st.com> MIME-Version: 1.0 X-Originating-IP: [10.201.23.25] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-04-24_09:, , signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190424_070352_345965_295F8072 X-CRM114-Status: GOOD ( 13.85 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fabien Dessenne Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP During probe, return the "clk_get" error value instead of -ENODEV. Signed-off-by: Fabien Dessenne Acked-by: Philippe Cornu --- drivers/gpu/drm/stm/ltdc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index 521ba83..97912e2 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -1145,8 +1145,9 @@ int ltdc_load(struct drm_device *ddev) ldev->pixel_clk = devm_clk_get(dev, "lcd"); if (IS_ERR(ldev->pixel_clk)) { - DRM_ERROR("Unable to get lcd clock\n"); - return -ENODEV; + if (PTR_ERR(ldev->pixel_clk) != -EPROBE_DEFER) + DRM_ERROR("Unable to get lcd clock\n"); + return PTR_ERR(ldev->pixel_clk); } if (clk_prepare_enable(ldev->pixel_clk)) {