From mboxrd@z Thu Jan 1 00:00:00 1970 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 7DD10CD5BAA for ; Wed, 20 May 2026 18:38:53 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1FD2610F13A; Wed, 20 May 2026 18:38:49 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=collabora.com header.i=@collabora.com header.b="UTUpNffR"; dkim-atps=neutral Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9499710F113 for ; Wed, 20 May 2026 18:38:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1779302316; bh=Vinl3H8Sv0aiM6aJ68yze1Wzhzorcj3ktQ602i1XvWM=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=UTUpNffRRth/UkSEmZ/7D9lYEtMHkbsy2yZQPKxqjUR53PPmf569XB8J+D8Pzddw7 UWA7cmRSUeLQPi+nkJe1mXxZaL3j7Zp4/SCz9yINQvAn5NP7fFi+WO6arwyQbjM5/K /7r3etbd3hfzIm8lAF2NCFclMks+MtA1V5+8gZQoOJ2hABDIHwu1YRGjBgu/AbMRDi fmI9NEfKUTLunkFipC5NzvF/FvfYyOl7ct1rhm7IheDUmRhg0U7zPGnEJCALex53Ga 1NRc/sidb+/Fmnyals0eWxYR3F/Jxebp5JPd7zb6Ij67QfDo81I0QMbAf97cKR1W+j t6EDEjdZUTpYw== Received: from localhost (unknown [100.64.0.241]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: cristicc) by bali.collaboradmins.com (Postfix) with ESMTPSA id 3F6A017E0566; Wed, 20 May 2026 20:38:36 +0200 (CEST) From: Cristian Ciocaltea Date: Wed, 20 May 2026 21:38:18 +0300 Subject: [PATCH v6 07/22] drm/bridge: Add HDMI 2.0 scrambler bridge operation and callbacks MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260520-dw-hdmi-qp-scramb-v6-7-24b74603b782@collabora.com> References: <20260520-dw-hdmi-qp-scramb-v6-0-24b74603b782@collabora.com> In-Reply-To: <20260520-dw-hdmi-qp-scramb-v6-0-24b74603b782@collabora.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Andy Yan , Luca Ceresoli , Daniel Stone Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org X-Mailer: b4 0.15.1 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" Add DRM_BRIDGE_OP_HDMI_SCRAMBLER bridge operation flag and the corresponding .hdmi_scrambler_{enable|disable}() bridge funcs callbacks. Bridge drivers set DRM_BRIDGE_OP_HDMI_SCRAMBLER to advertise that they implement source-side scrambling control, which the bridge connector layer uses to wire up the connector's scrambler callbacks. Signed-off-by: Cristian Ciocaltea --- include/drm/drm_bridge.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h index 4ba3a5deef9a..a0fcbbc7086e 100644 --- a/include/drm/drm_bridge.h +++ b/include/drm/drm_bridge.h @@ -667,6 +667,26 @@ struct drm_bridge_funcs { const struct drm_display_mode *mode, unsigned long long tmds_rate); + /** + * @hdmi_scrambler_enable: + * + * Enable HDMI 2.0 SCDC scrambling and high TMDS clock ratio. + * + * This callback is optional but it must be implemented by bridges that + * set the DRM_BRIDGE_OP_HDMI_SCRAMBLER flag in their &drm_bridge->ops. + */ + int (*hdmi_scrambler_enable)(struct drm_bridge *bridge); + + /** + * @hdmi_scrambler_disable: + * + * Disable HDMI 2.0 SCDC scrambling and high TMDS clock ratio. + * + * This callback is optional but it must be implemented by bridges that + * set the DRM_BRIDGE_OP_HDMI_SCRAMBLER flag in their &drm_bridge->ops. + */ + int (*hdmi_scrambler_disable)(struct drm_bridge *bridge); + /** * @hdmi_clear_avi_infoframe: * @@ -1092,6 +1112,12 @@ enum drm_bridge_ops { * &drm_bridge_funcs->hdmi_clear_spd_infoframe callbacks. */ DRM_BRIDGE_OP_HDMI_SPD_INFOFRAME = BIT(10), + /** + * @DRM_BRIDGE_OP_HDMI_SCRAMBLER: The bridge supports + * &drm_bridge_funcs->hdmi_scrambler_enable and + * &drm_bridge_funcs->hdmi_scrambler_disable callbacks. + */ + DRM_BRIDGE_OP_HDMI_SCRAMBLER = BIT(11), }; /** -- 2.53.0