From nobody Sat Jun 20 01:55:54 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A9D35C433F5 for ; Thu, 24 Mar 2022 11:37:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347848AbiCXLi7 (ORCPT ); Thu, 24 Mar 2022 07:38:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38214 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231890AbiCXLi5 (ORCPT ); Thu, 24 Mar 2022 07:38:57 -0400 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 42B2AA66FA for ; Thu, 24 Mar 2022 04:37:25 -0700 (PDT) Received: from kwepemi500015.china.huawei.com (unknown [172.30.72.55]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4KPNQF6qnszBrb3; Thu, 24 Mar 2022 19:33:25 +0800 (CST) Received: from huawei.com (10.175.127.227) by kwepemi500015.china.huawei.com (7.221.188.92) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Thu, 24 Mar 2022 19:37:22 +0800 From: Zheng Bin To: , , , , , , , , , CC: , Subject: [PATCH -next] drm/bridge: it6505: Fix build error without DRM_DP_HELPER Date: Thu, 24 Mar 2022 19:52:21 +0800 Message-ID: <20220324115221.1676625-1-zhengbin13@huawei.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemi500015.china.huawei.com (7.221.188.92) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" If DRM_DP_HELPER is not set, bulding fails: ld: drivers/gpu/drm/bridge/ite-it6505.o: in function `it6505_link_training_= work': ite-it6505.c:(.text+0x50d8): undefined reference to `drm_dp_dpcd_write' ld: ite-it6505.c:(.text+0x51c4): undefined reference to `drm_dp_link_train_= clock_recovery_delay' ld: ite-it6505.c:(.text+0x51d7): undefined reference to `drm_dp_dpcd_read_l= ink_status' ld: ite-it6505.c:(.text+0x51ec): undefined reference to `drm_dp_clock_recov= ery_ok' ld: ite-it6505.c:(.text+0x5387): undefined reference to `drm_dp_get_adjust_= request_voltage' ld: ite-it6505.c:(.text+0x539d): undefined reference to `drm_dp_get_adjust_= request_pre_emphasis' ld: ite-it6505.c:(.text+0x5548): undefined reference to `drm_dp_link_train_= channel_eq_delay' ld: ite-it6505.c:(.text+0x555b): undefined reference to `drm_dp_dpcd_read_l= ink_status' ld: ite-it6505.c:(.text+0x5570): undefined reference to `drm_dp_clock_recov= ery_ok' ld: ite-it6505.c:(.text+0x558d): undefined reference to `drm_dp_channel_eq_= ok' ld: ite-it6505.c:(.text+0x55da): undefined reference to `drm_dp_get_adjust_= request_voltage' ld: ite-it6505.c:(.text+0x55f2): undefined reference to `drm_dp_get_adjust_= request_pre_emphasis' ld: drivers/gpu/drm/bridge/ite-it6505.o: in function `it6505_bridge_detect': ite-it6505.c:(.text+0x59f1): undefined reference to `drm_dp_dpcd_read' ld: ite-it6505.c:(.text+0x5a16): undefined reference to `drm_dp_bw_code_to_= link_rate' ld: ite-it6505.c:(.text+0x5a87): undefined reference to `drm_dp_dpcd_read' ld: ite-it6505.c:(.text+0x5ac1): undefined reference to `drm_dp_dpcd_write' ld: ite-it6505.c:(.text+0x5d43): undefined reference to `drm_dp_link_rate_t= o_bw_code' Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver") Reported-by: Hulk Robot Signed-off-by: Zheng Bin --- drivers/gpu/drm/bridge/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index 007e5a282f67..2145b08f9534 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -78,6 +78,7 @@ config DRM_ITE_IT6505 tristate "ITE IT6505 DisplayPort bridge" depends on OF select DRM_KMS_HELPER + select DRM_DP_HELPER select EXTCON help ITE IT6505 DisplayPort bridge chip driver. -- 2.31.1