From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E2F9D606A31F for ; Tue, 27 Oct 2026 13:29:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=qqUDmWTa; dkim=pass (1024-bit key, unprotected) header.d=rock-chips.com header.i=@rock-chips.com header.a=rsa-sha256 header.s=default header.b=cn5cnMUx DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Unsubscribe-Post: List-Owner; bh=OZLecs9ULaW3R1e0H0Cp/hBp2cEn1xWlIbXGia1G9b8=; b=qqUDmWTal44yo1 c/uImcXztGV97sp2tAW090AZ0pq6fdY+UHXDvK0WuwgaJ+kbryhGAk4mdwWs5eUDuKVLx6bAwJ98U 4fFolxs5VunzpH53bbOqxCcTfpodEu2Cfe8vHOvM+GHsrDH5s7EUaPGL3aSZYDbbpUo0gWBNsepsS fYOrqhAy1fnXXG01dq5RE0dwkgDuG0ZRJXEomm3cZ9LC0sqsxfEVM4MiJoMuc0TtPgwdIzA8FHX8J xRKQM/I8Jy50feoUzqGLBW8yez1rVVJA8cVjCrb4hpqI7kAUbe5RM1Ksqnk1WUXdiJUevKkkwtmQs zM8BRBJRYzHAVyfmJ/xg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xLhEk-00000004rgO-3F50; Tue, 27 Oct 2026 13:29:10 +0000 Received: from mail-m83247.xmail.ntesmail.com ([156.224.83.247]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xLhEF-00000004r0j-04yc; Tue, 27 Oct 2026 13:28:40 +0000 Received: from zyb-HP-ProDesk-680-G2-MT.. (unknown [61.154.14.86]) by smtp.qiye.163.com (Hmail) with ESMTP id 528777a45; Tue, 27 Oct 2026 21:28:34 +0800 (GMT+08:00) From: Damon Ding To: Andrzej Hajda , Neil Armstrong , Robert Foss , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jingoo Han , Inki Dae , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Peter Griffin , Alim Akhtar , Heiko Stuebner , Sandy Huang Cc: Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Luca Ceresoli , Dmitry Baryshkov , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, Damon Ding Subject: [PATCH v5 16/18] drm/bridge: analogix_dp: Declare DRM_BRIDGE_OP_HPD for hotplug reporting Date: Tue, 27 Oct 2026 21:28:08 +0800 Message-Id: <20261027132810.1746118-17-damon.ding@rock-chips.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261027132810.1746118-1-damon.ding@rock-chips.com> References: <20261027132810.1746118-1-damon.ding@rock-chips.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-HM-Tid: 0aa17d8c61a003a8kunm87c266213d573a X-HM-MType: 1 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFITzdXWRgWCB1ZQUpXWS1ZQUlXWQ8JGhUIEh9ZQVkaThlNVktKGUxITElJTktIT1YVFA kWGhdVEwETFhoSFyQUDg9ZV1kYEgtZQVlNSlVKTk9VSk9VQ01ZV1kWGg8SFR0UWUFZT0tIVUpLSU 9PT0hVSktLVUpCS0tZBg++ DKIM-Signature: a=rsa-sha256; b=cn5cnMUxh+tZTsig1iD2lQuSkdIGiC0kgc/4tU5mfTr/mpDNBFkratkKfz9mtQDTVNwCpBE7VrlcRBgQFGW00WXH88y3yH/fqMA2+VvKOnztqoaS7JNVik65gW2OQofxUvXKWLDsqr3ngTaDqqvudLg/qv+p7ffQsS7NIG9rv/A=; c=relaxed/relaxed; s=default; d=rock-chips.com; v=1; bh=OZLecs9ULaW3R1e0H0Cp/hBp2cEn1xWlIbXGia1G9b8=; h=date:mime-version:subject:message-id:from; X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261027_062839_388805_4AF3ADA9 X-CRM114-Status: GOOD ( 13.68 ) X-Spam-Score: -2.1 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 The connector created by drm_bridge_connector_init() only gets DRM_CONNECTOR_POLL_HPD when a bridge in the chain declares DRM_BRIDGE_OP_HPD. Without it, the HPD events reported from the IRQ thread were silently dropped and the connection state was only refreshed by the periodic poll worker. Declare DRM_BRIDGE_OP_HPD on the Analogix DP bridge, implement the no-op .hpd_enable/.hpd_disable callbacks, and report the hotplug events via drm_bridge_hpd_notify() with the status read from the hardware. Signed-off-by: Damon Ding --- .../drm/bridge/analogix/analogix_dp_core.c | 22 +++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index 009567da5f17..938c70dc8e15 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -31,7 +31,6 @@ #include #include #include -#include #include