From nobody Thu Oct 2 20:28:26 2025 Received: from mail-m3299.qiye.163.com (mail-m3299.qiye.163.com [220.197.32.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4204D275847; Fri, 12 Sep 2025 09:14:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.32.99 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757668492; cv=none; b=BQ2X6I4Oq3pskUDKeXM557o1elrs2AEeaDlsXiEWA8C6zO891CcGmZXNj9nAyzS8K314o2DZC+atuYFOUUNhgWA2sCF2n6X94V2cxfcF9hMlGkz/Xx2atiBIas6XhN76fJiHkobO6lfWDA2PZ/ks+cxbwri4Ih2BoA0fWkxgGdY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757668492; c=relaxed/simple; bh=1fDB1QfKnJBFPzFMrvfW2plsqnZmZmQx8g6K8JhO3g0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=hZkJOpahHrRkx8F7SHCMxwbcNqeylrJAKU7gglCQoptSODaG6ESL2ia5xTgJ8s+uRUKwYat5o0faX/Sh39MiB9Qdz3K0h+Cm5i/0Fsz1BNc1Tp8EyBq1/TStsluQiYegVhvCy25WDUFsx6MP+FLbm+IOYy2XmqCegjMYmT+ARG4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=rock-chips.com; spf=pass smtp.mailfrom=rock-chips.com; dkim=pass (1024-bit key) header.d=rock-chips.com header.i=@rock-chips.com header.b=CWgCB7fL; arc=none smtp.client-ip=220.197.32.99 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=rock-chips.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rock-chips.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=rock-chips.com header.i=@rock-chips.com header.b="CWgCB7fL" Received: from zyb-HP-ProDesk-680-G2-MT.. (unknown [58.22.7.114]) by smtp.qiye.163.com (Hmail) with ESMTP id 2298a0eb7; Fri, 12 Sep 2025 16:59:29 +0800 (GMT+08:00) From: Damon Ding To: andrzej.hajda@intel.com, neil.armstrong@linaro.org, rfoss@kernel.org Cc: Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@gmail.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, jingoohan1@gmail.com, inki.dae@samsung.com, sw0312.kim@samsung.com, kyungmin.park@samsung.com, krzk@kernel.org, alim.akhtar@samsung.com, hjc@rock-chips.com, heiko@sntech.de, andy.yan@rock-chips.com, dmitry.baryshkov@oss.qualcomm.com, dianders@chromium.org, m.szyprowski@samsung.com, luca.ceresoli@bootlin.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, Damon Ding Subject: [PATCH v5 13/17] drm/rockchip: analogix_dp: Apply &analogix_dp_plat_data.attach() to attach next bridge Date: Fri, 12 Sep 2025 16:58:42 +0800 Message-Id: <20250912085846.7349-14-damon.ding@rock-chips.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250912085846.7349-1-damon.ding@rock-chips.com> References: <20250912085846.7349-1-damon.ding@rock-chips.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-HM-Tid: 0a993d26af9e03a3kunm813a8c8ea46246 X-HM-MType: 1 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFDSUNOT01LS0k3V1ktWUFJV1kPCRoVCBIfWUFZGh5NSFZPQh9MHh8ZHktJQh9WFRQJFh oXVRMBExYaEhckFA4PWVdZGBILWUFZTkNVSUlVTFVKSk9ZV1kWGg8SFR0UWUFZT0tIVUpLSEpKQk 1VSktLVUpCWQY+ DKIM-Signature: a=rsa-sha256; b=CWgCB7fLwrYIZriaNXhZT1Te5EP55AOQjxHvsSmGLb1gWwXIE2A37p9EmaR9hpOhf4GqYQGKdMJJQXWEmqC+o8THptUrVCtLj7KcWCI8jUmNjiCUMdBYHR5RuzWiXQfIOWdGhm4VXSjSkS0HpFPxUuS+sDW6fOhLUwiHqSLlVpE=; c=relaxed/relaxed; s=default; d=rock-chips.com; v=1; bh=jSqkJBK8n7ly5U0nAnm+/OksXDHVIBn6HmUmV6qYAJ8=; h=date:mime-version:subject:message-id:from; Content-Type: text/plain; charset="utf-8" There may be the panel or bridge after &analogix_dp_device.bridge. Add rockchip_dp_attach() to support the next bridge attachment for the Rockchip side. Signed-off-by: Damon Ding --- .../gpu/drm/rockchip/analogix_dp-rockchip.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/= drm/rockchip/analogix_dp-rockchip.c index 0784f19a2ed9..39f1ed293c75 100644 --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c @@ -164,6 +164,24 @@ static int rockchip_dp_powerdown(struct analogix_dp_pl= at_data *plat_data) return 0; } =20 +static int rockchip_dp_attach(struct analogix_dp_plat_data *plat_data, + struct drm_bridge *bridge) +{ + struct rockchip_dp_device *dp =3D pdata_encoder_to_dp(plat_data); + int ret; + + if (plat_data->next_bridge) { + ret =3D drm_bridge_attach(&dp->encoder.encoder, plat_data->next_bridge, = bridge, + DRM_BRIDGE_ATTACH_NO_CONNECTOR); + if (ret) { + dev_err(dp->dev, "failed to attach following panel or bridge (%d)\n", r= et); + return ret; + } + } + + return 0; +} + static bool rockchip_dp_drm_encoder_mode_fixup(struct drm_encoder *encoder, const struct drm_display_mode *mode, @@ -452,6 +470,7 @@ static int rockchip_dp_probe(struct platform_device *pd= ev) dp->plat_data.dev_type =3D dp->data->chip_type; dp->plat_data.power_on =3D rockchip_dp_poweron; dp->plat_data.power_off =3D rockchip_dp_powerdown; + dp->plat_data.attach =3D rockchip_dp_attach; dp->plat_data.ops =3D &rockchip_dp_component_ops; =20 ret =3D rockchip_dp_of_probe(dp); --=20 2.34.1