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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 03931C2BB43 for ; Mon, 15 Aug 2022 18:51:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244265AbiHOSq4 (ORCPT ); Mon, 15 Aug 2022 14:46:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36452 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244074AbiHOSmF (ORCPT ); Mon, 15 Aug 2022 14:42:05 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B6A752F39B; Mon, 15 Aug 2022 11:25:51 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 5365660693; Mon, 15 Aug 2022 18:25:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5042EC433C1; Mon, 15 Aug 2022 18:25:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660587950; bh=7kTuRjWeXotfCma1C7/3Cu45ZAi4uAA33+Sq6BvAK7M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lwdK1Wnb/wmsvLDAR5b5l5iSB9uBCLT7H1kzkNnR6nQtw3hGGG6C9JeHjdKmkyWd3 cr2RstdO+b3nv2nhozi8qFK3I/cuUsePbdIMWRZo8kZcaiT4DmB6lgZb9vcPOs+RNN DkPMDg5WZEa/DLnkB+5iI7DI2C+8ytNQXMiqg6Ag= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Neil Armstrong , Sam Ravnborg , Martin Blumenstingl , Sasha Levin Subject: [PATCH 5.15 247/779] drm/meson: encoder_hdmi: switch to bridge DRM_BRIDGE_ATTACH_NO_CONNECTOR Date: Mon, 15 Aug 2022 19:58:11 +0200 Message-Id: <20220815180347.894058731@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180337.130757997@linuxfoundation.org> References: <20220815180337.130757997@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Neil Armstrong [ Upstream commit 0af5e0b41110e2da872030395231ab19c45be931 ] This implements the necessary change to no more use the embedded connector in dw-hdmi and use the dedicated bridge connector driver by passing DRM_BRIDGE_ATTACH_NO_CONNECTOR to the bridge attach call. The necessary connector properties are added to handle the same functionalities as the embedded dw-hdmi connector, i.e. the HDR metadata, the CEC notifier & other flags. The dw-hdmi output_port is set to 1 in order to look for a connector next bridge in order to get DRM_BRIDGE_ATTACH_NO_CONNECTOR working. Signed-off-by: Neil Armstrong Acked-by: Sam Ravnborg Acked-by: Martin Blumenstingl Link: https://patchwork.freedesktop.org/patch/msgid/20211020123947.2585572-5-narmstrong@baylibre.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/meson/Kconfig | 2 + drivers/gpu/drm/meson/meson_dw_hdmi.c | 1 + drivers/gpu/drm/meson/meson_encoder_hdmi.c | 81 +++++++++++++++++++++- 3 files changed, 82 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/meson/Kconfig b/drivers/gpu/drm/meson/Kconfig index 9f9281dd49f8..a4e1ed96e5e8 100644 --- a/drivers/gpu/drm/meson/Kconfig +++ b/drivers/gpu/drm/meson/Kconfig @@ -6,9 +6,11 @@ config DRM_MESON select DRM_KMS_HELPER select DRM_KMS_CMA_HELPER select DRM_GEM_CMA_HELPER + select DRM_DISPLAY_CONNECTOR select VIDEOMODE_HELPERS select REGMAP_MMIO select MESON_CANVAS + select CEC_CORE if CEC_NOTIFIER config DRM_MESON_DW_HDMI tristate "HDMI Synopsys Controller support for Amlogic Meson Display" diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c index fb540a503efe..5cd2b2ebbbd3 100644 --- a/drivers/gpu/drm/meson/meson_dw_hdmi.c +++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c @@ -803,6 +803,7 @@ static int meson_dw_hdmi_bind(struct device *dev, struct device *master, dw_plat_data->input_bus_encoding = V4L2_YCBCR_ENC_709; dw_plat_data->ycbcr_420_allowed = true; dw_plat_data->disable_cec = true; + dw_plat_data->output_port = 1; if (dw_hdmi_is_compatible(meson_dw_hdmi, "amlogic,meson-gxl-dw-hdmi") || dw_hdmi_is_compatible(meson_dw_hdmi, "amlogic,meson-gxm-dw-hdmi") || diff --git a/drivers/gpu/drm/meson/meson_encoder_hdmi.c b/drivers/gpu/drm/meson/meson_encoder_hdmi.c index db332fa4cd54..5e306de6f485 100644 --- a/drivers/gpu/drm/meson/meson_encoder_hdmi.c +++ b/drivers/gpu/drm/meson/meson_encoder_hdmi.c @@ -14,8 +14,11 @@ #include #include +#include + #include #include +#include #include #include #include @@ -34,8 +37,10 @@ struct meson_encoder_hdmi { struct drm_encoder encoder; struct drm_bridge bridge; struct drm_bridge *next_bridge; + struct drm_connector *connector; struct meson_drm *priv; unsigned long output_bus_fmt; + struct cec_notifier *cec_notifier; }; #define bridge_to_meson_encoder_hdmi(x) \ @@ -50,6 +55,14 @@ static int meson_encoder_hdmi_attach(struct drm_bridge *bridge, &encoder_hdmi->bridge, flags); } +static void meson_encoder_hdmi_detach(struct drm_bridge *bridge) +{ + struct meson_encoder_hdmi *encoder_hdmi = bridge_to_meson_encoder_hdmi(bridge); + + cec_notifier_conn_unregister(encoder_hdmi->cec_notifier); + encoder_hdmi->cec_notifier = NULL; +} + static void meson_encoder_hdmi_set_vclk(struct meson_encoder_hdmi *encoder_hdmi, const struct drm_display_mode *mode) { @@ -298,9 +311,30 @@ static int meson_encoder_hdmi_atomic_check(struct drm_bridge *bridge, return 0; } +static void meson_encoder_hdmi_hpd_notify(struct drm_bridge *bridge, + enum drm_connector_status status) +{ + struct meson_encoder_hdmi *encoder_hdmi = bridge_to_meson_encoder_hdmi(bridge); + struct edid *edid; + + if (!encoder_hdmi->cec_notifier) + return; + + if (status == connector_status_connected) { + edid = drm_bridge_get_edid(encoder_hdmi->next_bridge, encoder_hdmi->connector); + if (!edid) + return; + + cec_notifier_set_phys_addr_from_edid(encoder_hdmi->cec_notifier, edid); + } else + cec_notifier_phys_addr_invalidate(encoder_hdmi->cec_notifier); +} + static const struct drm_bridge_funcs meson_encoder_hdmi_bridge_funcs = { .attach = meson_encoder_hdmi_attach, + .detach = meson_encoder_hdmi_detach, .mode_valid = meson_encoder_hdmi_mode_valid, + .hpd_notify = meson_encoder_hdmi_hpd_notify, .atomic_enable = meson_encoder_hdmi_atomic_enable, .atomic_disable = meson_encoder_hdmi_atomic_disable, .atomic_get_input_bus_fmts = meson_encoder_hdmi_get_inp_bus_fmts, @@ -313,6 +347,7 @@ static const struct drm_bridge_funcs meson_encoder_hdmi_bridge_funcs = { int meson_encoder_hdmi_init(struct meson_drm *priv) { struct meson_encoder_hdmi *meson_encoder_hdmi; + struct platform_device *pdev; struct device_node *remote; int ret; @@ -337,6 +372,7 @@ int meson_encoder_hdmi_init(struct meson_drm *priv) meson_encoder_hdmi->bridge.funcs = &meson_encoder_hdmi_bridge_funcs; meson_encoder_hdmi->bridge.of_node = priv->dev->of_node; meson_encoder_hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA; + meson_encoder_hdmi->bridge.interlace_allowed = true; drm_bridge_add(&meson_encoder_hdmi->bridge); @@ -353,17 +389,58 @@ int meson_encoder_hdmi_init(struct meson_drm *priv) meson_encoder_hdmi->encoder.possible_crtcs = BIT(0); /* Attach HDMI Encoder Bridge to Encoder */ - ret = drm_bridge_attach(&meson_encoder_hdmi->encoder, &meson_encoder_hdmi->bridge, NULL, 0); + ret = drm_bridge_attach(&meson_encoder_hdmi->encoder, &meson_encoder_hdmi->bridge, NULL, + DRM_BRIDGE_ATTACH_NO_CONNECTOR); if (ret) { dev_err(priv->dev, "Failed to attach bridge: %d\n", ret); return ret; } + /* Initialize & attach Bridge Connector */ + meson_encoder_hdmi->connector = drm_bridge_connector_init(priv->drm, + &meson_encoder_hdmi->encoder); + if (IS_ERR(meson_encoder_hdmi->connector)) { + dev_err(priv->dev, "Unable to create HDMI bridge connector\n"); + return PTR_ERR(meson_encoder_hdmi->connector); + } + drm_connector_attach_encoder(meson_encoder_hdmi->connector, + &meson_encoder_hdmi->encoder); + /* * We should have now in place: - * encoder->[hdmi encoder bridge]->[dw-hdmi bridge]->[dw-hdmi connector] + * encoder->[hdmi encoder bridge]->[dw-hdmi bridge]->[display connector bridge]->[display connector] */ + /* + * drm_connector_attach_max_bpc_property() requires the + * connector to have a state. + */ + drm_atomic_helper_connector_reset(meson_encoder_hdmi->connector); + + if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXL) || + meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) || + meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) + drm_connector_attach_hdr_output_metadata_property(meson_encoder_hdmi->connector); + + drm_connector_attach_max_bpc_property(meson_encoder_hdmi->connector, 8, 8); + + /* Handle this here until handled by drm_bridge_connector_init() */ + meson_encoder_hdmi->connector->ycbcr_420_allowed = true; + + pdev = of_find_device_by_node(remote); + if (pdev) { + struct cec_connector_info conn_info; + struct cec_notifier *notifier; + + cec_fill_conn_info_from_drm(&conn_info, meson_encoder_hdmi->connector); + + notifier = cec_notifier_conn_register(&pdev->dev, NULL, &conn_info); + if (!notifier) + return -ENOMEM; + + meson_encoder_hdmi->cec_notifier = notifier; + } + dev_dbg(priv->dev, "HDMI encoder initialized\n"); return 0; -- 2.35.1