From patchwork Sun Dec 1 00:44:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 13889417 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 D1962D7361B for ; Sun, 1 Dec 2024 00:49:22 +0000 (UTC) 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:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=O72gbUDbM7kl3JMP7ZBWI3LnDF87C5Sg9KKzLKy42H4=; b=P7KSGQs1HSvviDpLA/jYdY1wlc R49Nfi+6iSgHVH550QztL5kLcztZY3SILoUrBi2CoFxWQ34F+5yWAvTrMS/GucOjRP9V9nnHL5uBw XnhLB9Z3dwYHGNo4gq0a88HEJNVgeYsuPcmhlzLoTPvxeuYPEZl84HjiD2MkqJpqz2YPq2URTXvdX 4lwRw5dMSDUhS6ZAR83l2QAEcXTHS1sWyelb6m4Y4TNDmPN21nT9yi6d3VjuxMaURYfDb+N1n6WBW VKKWpTdfwbz+FaS5DpdKUezNS1t00mG6ZdKv5NbrtPIitWkIlYwHrEOW9vWpWBlpw8gkKjjkuOeGN PEJ0BIdQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tHY9J-00000002phR-3sY4; Sun, 01 Dec 2024 00:49:21 +0000 Received: from mail-ed1-x529.google.com ([2a00:1450:4864:20::529]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tHY4c-00000002oYX-0upX for linux-mediatek@lists.infradead.org; Sun, 01 Dec 2024 00:44:31 +0000 Received: by mail-ed1-x529.google.com with SMTP id 4fb4d7f45d1cf-5cf6f804233so3525908a12.2 for ; Sat, 30 Nov 2024 16:44:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1733013869; x=1733618669; darn=lists.infradead.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=O72gbUDbM7kl3JMP7ZBWI3LnDF87C5Sg9KKzLKy42H4=; b=SNmnIpt71LjILHxztV31ZH8q+7c8qCwhUZaqX9vZSleU0eRAoz6U/ndDBuwxrGm2Ro ybEru9s6t1pte5MxNnU3RYzan6fWVMV8X+2FBOJqJcuK/e7J15Xm/86gAhL60vr+Iw/z 85DpLZv+mk+dbpa1HhKY2UMJ/ndIX5jLBpU9O0YktdeLPOI6vrdY+mQOrFqjy80iL/an 5pMS6s+DslKa5MIkNs/U7s36sGnKrrgwmu0RlhFd8x6MObCAQIPnzLmwmOYIq/XheVOp cNC05gwMBkvdLzkyVBINhK2NK7BW09n+Dk872SMF/B64UqWJ58KIL2Pjt2DzaK44KSf3 ax2w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733013869; x=1733618669; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=O72gbUDbM7kl3JMP7ZBWI3LnDF87C5Sg9KKzLKy42H4=; b=N+lkzlYrQ33gr7TU/9rJnzX8Rc/jfl8hnoRAt/27ODlcTWMvpQDgNNBVHhDQPrrYQh t53L3zefDGmLls9tSGUQB8MA8plUiXbyWOjf+p3Tx/oJA+BSvbKEuIECrD2unUNjNcIj mkdshE2c6Njn72mvSwRcwNqD3L9Wgw0kZ6HchGOPi/G47TMqv7GYHLWhvBJlGZL9nfDl kaJYy0WXbjQXY31pzfc+aFqPWkS8F/kpm5jHAlYBIwyQW/NCQHu3dACWQ/EMkWRg4mhw M3hDN9xqWHdfTh2AcAD9RIzWVO646qyuudUMPCS02SfVSXOBIyaKQSb1SbczJESI8f4C 2aHA== X-Forwarded-Encrypted: i=1; AJvYcCVdf77b0ph9SbF4NT8+rw0esh1icCrBdfqTjhgQqXjJH4XXZpm+P5QcH3hSG41X5lIN0voKGPVKZdjKOQp+EA==@lists.infradead.org X-Gm-Message-State: AOJu0YwGSPr0ejFeTUq634tlC8TjpWJJ6yYir5iEKer0sSTD9bx2Jhkr qQrCNb1PbsLV1v1oT/1UaTO3BGwxGqtE8cCj1jp47iIS6rdcxxCx48hEhImCMLU= X-Gm-Gg: ASbGncsTpDO8C5ZfcAbyeQdpZh8uXUfd+b9gJumkhbB9zIVvHpqIYG3To9LJyPDLxca LAmziVTQCHf6HAq7Z6izEvotUw5vfMO/TDl/1pTw5cD6q1Jea2Z5VFDTuaDz5hr9Iv3wA1ZtRQt XXdwu1nynsdDVZ+fsEMjL17qkynepp2lXazEa+SMcAbEJmTnemVJETAay+D/bVSuLW+DM7yvTHP SCizYoOg4xAvSl5/Y+zqVQu8QBk4JUq1e6Tl9moU4mJxDTXnwXKDxa5VQ== X-Google-Smtp-Source: AGHT+IEE4L3VUqVftuJEN2sm9JoYQq9hfUq52f3dulYx8DO99poV3eRa3t+gDAWD+mD+8EsMpBO8DQ== X-Received: by 2002:a05:6402:3213:b0:5d0:b040:4616 with SMTP id 4fb4d7f45d1cf-5d0b040decbmr10137668a12.28.1733013868829; Sat, 30 Nov 2024 16:44:28 -0800 (PST) Received: from umbar.lan ([192.130.178.90]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-5d097e8d817sm3400359a12.63.2024.11.30.16.44.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 30 Nov 2024 16:44:27 -0800 (PST) From: Dmitry Baryshkov Date: Sun, 01 Dec 2024 02:44:09 +0200 Subject: [PATCH v5 5/9] drm/bridge: lt9611: switch to using the DRM HDMI codec framework MIME-Version: 1.0 Message-Id: <20241201-drm-bridge-hdmi-connector-v5-5-b5316e82f61a@linaro.org> References: <20241201-drm-bridge-hdmi-connector-v5-0-b5316e82f61a@linaro.org> In-Reply-To: <20241201-drm-bridge-hdmi-connector-v5-0-b5316e82f61a@linaro.org> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jaroslav Kysela , Takashi Iwai , Liam Girdwood , Mark Brown , Phong LE , Inki Dae , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar , Russell King , Chun-Kuang Hu , Philipp Zabel , Matthias Brugger , AngeloGioacchino Del Regno , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Andy Yan , Alain Volmat , Raphael Gallais-Pou , Dave Stevenson , =?utf-8?q?Ma=C3=ADra_Cana?= =?utf-8?q?l?= , Raspberry Pi Kernel Maintenance Cc: Jani Nikula , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-sound@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=7869; i=dmitry.baryshkov@linaro.org; h=from:subject:message-id; bh=bt7FTSnaJ4ZdPpnvHjWH+URnk6jSCm36E7PfRw7YH9s=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBnS7FY7Cah0p2oeaHoAxF6UtGVwFktOgn6OOKkS DzRC31nQr+JATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCZ0uxWAAKCRCLPIo+Aiko 1TB5B/4j77N/gCHdGuv0kwJ5aNKYBwVMlEWLN9wEs/c9rpQxBxqWqcIy9elPVCP7Zm8jEf81gIK bD5rfRa+wAVJKYo7Jgeivi9k/ep1H+5xiXbnQW7J+MMotbksGWTTi4FJruQfa3pBQXWvxuOHTfA aG0s6EduaxnYX4fGUWDpvnA3ukIgb7UO5GXiBygLFDA/5QZ/2afpifyw6eceVM1fNg+knxzcIwj 3tpnQLg2S2NwSUh9dHa81sI5MHYMkzKRN5REihWHXkhjO6PJ38It+zGv8fiJ0QqIPNoXL1Bdb1g mdUAXk1UKBISVFwBkozmW2tnlsEYVUwp9RUUSPg5FBqeQrzg X-Developer-Key: i=dmitry.baryshkov@linaro.org; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241130_164430_378050_20E31D79 X-CRM114-Status: GOOD ( 17.18 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Make the Lontium LT9611 DSI-to-HDMI bridge driver use the DRM HDMI Codec framework. This enables programming of Audio InfoFrames using the HDMI Connector interface and also enables support for the missing features, including the ELD retrieval and better hotplug support. Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/bridge/lontium-lt9611.c | 171 +++++++++++++------------------- 1 file changed, 69 insertions(+), 102 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index 6bc1b2476847c3bccbbf9874bb384c1f60674da6..f3ac67440a941327308ddf1fbb77744c6a8fe42e 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -45,7 +45,6 @@ struct lt9611 { struct device_node *dsi1_node; struct mipi_dsi_device *dsi0; struct mipi_dsi_device *dsi1; - struct platform_device *audio_pdev; bool ac_mode; @@ -866,6 +865,10 @@ static int lt9611_hdmi_clear_infoframe(struct drm_bridge *bridge, unsigned int mask; switch (type) { + case HDMI_INFOFRAME_TYPE_AUDIO: + mask = LT9611_INFOFRAME_AUDIO; + break; + case HDMI_INFOFRAME_TYPE_AVI: mask = LT9611_INFOFRAME_AVI; break; @@ -899,6 +902,11 @@ static int lt9611_hdmi_write_infoframe(struct drm_bridge *bridge, int i; switch (type) { + case HDMI_INFOFRAME_TYPE_AUDIO: + mask = LT9611_INFOFRAME_AUDIO; + addr = 0x84b2; + break; + case HDMI_INFOFRAME_TYPE_AVI: mask = LT9611_INFOFRAME_AVI; addr = 0x8440; @@ -942,6 +950,55 @@ lt9611_hdmi_tmds_char_rate_valid(const struct drm_bridge *bridge, return MODE_OK; } +static int lt9611_hdmi_codec_audio_startup(struct drm_connector *connector, + struct drm_bridge *bridge) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + + regmap_write(lt9611->regmap, 0x82d6, 0x8c); + regmap_write(lt9611->regmap, 0x82d7, 0x04); + + regmap_write(lt9611->regmap, 0x8406, 0x08); + regmap_write(lt9611->regmap, 0x8407, 0x10); + + regmap_write(lt9611->regmap, 0x8434, 0xd5); + + return 0; +} + +static int lt9611_hdmi_codec_prepare(struct drm_connector *connector, + struct drm_bridge *bridge, + struct hdmi_codec_daifmt *fmt, + struct hdmi_codec_params *hparms) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + + if (hparms->sample_rate == 48000) + regmap_write(lt9611->regmap, 0x840f, 0x2b); + else if (hparms->sample_rate == 96000) + regmap_write(lt9611->regmap, 0x840f, 0xab); + else + return -EINVAL; + + regmap_write(lt9611->regmap, 0x8435, 0x00); + regmap_write(lt9611->regmap, 0x8436, 0x18); + regmap_write(lt9611->regmap, 0x8437, 0x00); + + return drm_atomic_helper_connector_hdmi_update_audio_infoframe(connector, + &hparms->cea); +} + +static void lt9611_hdmi_codec_audio_shutdown(struct drm_connector *connector, + struct drm_bridge *bridge) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + + drm_atomic_helper_connector_hdmi_clear_audio_infoframe(connector); + + regmap_write(lt9611->regmap, 0x8406, 0x00); + regmap_write(lt9611->regmap, 0x8407, 0x00); +} + static const struct drm_bridge_funcs lt9611_bridge_funcs = { .attach = lt9611_bridge_attach, .mode_valid = lt9611_bridge_mode_valid, @@ -962,6 +1019,10 @@ static const struct drm_bridge_funcs lt9611_bridge_funcs = { .hdmi_tmds_char_rate_valid = lt9611_hdmi_tmds_char_rate_valid, .hdmi_write_infoframe = lt9611_hdmi_write_infoframe, .hdmi_clear_infoframe = lt9611_hdmi_clear_infoframe, + + .hdmi_codec_audio_startup = lt9611_hdmi_codec_audio_startup, + .hdmi_codec_prepare = lt9611_hdmi_codec_prepare, + .hdmi_codec_audio_shutdown = lt9611_hdmi_codec_audio_shutdown, }; static int lt9611_parse_dt(struct device *dev, @@ -1015,102 +1076,6 @@ static int lt9611_read_device_rev(struct lt9611 *lt9611) return ret; } -static int lt9611_hdmi_hw_params(struct device *dev, void *data, - struct hdmi_codec_daifmt *fmt, - struct hdmi_codec_params *hparms) -{ - struct lt9611 *lt9611 = data; - - if (hparms->sample_rate == 48000) - regmap_write(lt9611->regmap, 0x840f, 0x2b); - else if (hparms->sample_rate == 96000) - regmap_write(lt9611->regmap, 0x840f, 0xab); - else - return -EINVAL; - - regmap_write(lt9611->regmap, 0x8435, 0x00); - regmap_write(lt9611->regmap, 0x8436, 0x18); - regmap_write(lt9611->regmap, 0x8437, 0x00); - - return 0; -} - -static int lt9611_audio_startup(struct device *dev, void *data) -{ - struct lt9611 *lt9611 = data; - - regmap_write(lt9611->regmap, 0x82d6, 0x8c); - regmap_write(lt9611->regmap, 0x82d7, 0x04); - - regmap_write(lt9611->regmap, 0x8406, 0x08); - regmap_write(lt9611->regmap, 0x8407, 0x10); - - regmap_write(lt9611->regmap, 0x8434, 0xd5); - - return 0; -} - -static void lt9611_audio_shutdown(struct device *dev, void *data) -{ - struct lt9611 *lt9611 = data; - - regmap_write(lt9611->regmap, 0x8406, 0x00); - regmap_write(lt9611->regmap, 0x8407, 0x00); -} - -static int lt9611_hdmi_i2s_get_dai_id(struct snd_soc_component *component, - struct device_node *endpoint, - void *data) -{ - struct of_endpoint of_ep; - int ret; - - ret = of_graph_parse_endpoint(endpoint, &of_ep); - if (ret < 0) - return ret; - - /* - * HDMI sound should be located as reg = <2> - * Then, it is sound port 0 - */ - if (of_ep.port == 2) - return 0; - - return -EINVAL; -} - -static const struct hdmi_codec_ops lt9611_codec_ops = { - .hw_params = lt9611_hdmi_hw_params, - .audio_shutdown = lt9611_audio_shutdown, - .audio_startup = lt9611_audio_startup, - .get_dai_id = lt9611_hdmi_i2s_get_dai_id, -}; - -static struct hdmi_codec_pdata codec_data = { - .ops = <9611_codec_ops, - .max_i2s_channels = 8, - .i2s = 1, -}; - -static int lt9611_audio_init(struct device *dev, struct lt9611 *lt9611) -{ - codec_data.data = lt9611; - lt9611->audio_pdev = - platform_device_register_data(dev, HDMI_CODEC_DRV_NAME, - PLATFORM_DEVID_AUTO, - &codec_data, sizeof(codec_data)); - - return PTR_ERR_OR_ZERO(lt9611->audio_pdev); -} - -static void lt9611_audio_exit(struct lt9611 *lt9611) -{ - if (lt9611->audio_pdev) { - platform_device_unregister(lt9611->audio_pdev); - lt9611->audio_pdev = NULL; - } -} - static int lt9611_probe(struct i2c_client *client) { struct lt9611 *lt9611; @@ -1174,6 +1139,9 @@ static int lt9611_probe(struct i2c_client *client) i2c_set_clientdata(client, lt9611); + /* Disable Audio InfoFrame, enabled by default */ + regmap_update_bits(lt9611->regmap, 0x843d, LT9611_INFOFRAME_AUDIO, 0); + lt9611->bridge.funcs = <9611_bridge_funcs; lt9611->bridge.of_node = client->dev.of_node; lt9611->bridge.ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID | @@ -1182,6 +1150,10 @@ static int lt9611_probe(struct i2c_client *client) lt9611->bridge.type = DRM_MODE_CONNECTOR_HDMIA; lt9611->bridge.vendor = "Lontium"; lt9611->bridge.product = "LT9611"; + lt9611->bridge.hdmi_codec_max_i2s_channels = 8; + lt9611->bridge.hdmi_codec_i2s = 1; + lt9611->bridge.hdmi_codec_dev = dev; + lt9611->bridge.hdmi_codec_dai_port = 2; drm_bridge_add(<9611->bridge); @@ -1203,10 +1175,6 @@ static int lt9611_probe(struct i2c_client *client) lt9611_enable_hpd_interrupts(lt9611); - ret = lt9611_audio_init(dev, lt9611); - if (ret) - goto err_remove_bridge; - return 0; err_remove_bridge: @@ -1227,7 +1195,6 @@ static void lt9611_remove(struct i2c_client *client) struct lt9611 *lt9611 = i2c_get_clientdata(client); disable_irq(client->irq); - lt9611_audio_exit(lt9611); drm_bridge_remove(<9611->bridge); regulator_bulk_disable(ARRAY_SIZE(lt9611->supplies), lt9611->supplies);