From patchwork Tue Dec 17 00:40:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 13910778 Received: from mail-lj1-f181.google.com (mail-lj1-f181.google.com [209.85.208.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3D4CE1E529 for ; Tue, 17 Dec 2024 00:40:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.181 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734396045; cv=none; b=SqX2mhCJg8apnmMAmfcLctPHeUOx6l0ugwssaONkJUpsZ3v+yTSVuiQQFyqEkJRunuW0+MfPL8PsSIxwpaTB4WwQxM4ppZVqZMCEArkuNUiZxGutW4TSTb8ChZFNv3kWdw2nrW0aItDUs1IcUZ/yT0+61e1RV7vNORLirgIklSQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734396045; c=relaxed/simple; bh=blHynooi501M6eeyloC6kd8uxJXpc03F06fH28uf1hY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=cyBE0/k8pzQL4UBedfdpk6ZTTkB/gTM5qsAmQx6uWeAOCMR65jvnFIYq4L1xUjDUTUpbggReXyZs4EszNZ111EjNbtBIDMDbPyiiqGFGoGe4O10gADHxKlq4uo2jy08o6kpJR6DNKpk6jETNwuJG+l0RZwYlob+PedyCzYrb3y4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=VZwshafb; arc=none smtp.client-ip=209.85.208.181 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="VZwshafb" Received: by mail-lj1-f181.google.com with SMTP id 38308e7fff4ca-300392cc4caso55704841fa.3 for ; Mon, 16 Dec 2024 16:40:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1734396041; x=1735000841; darn=vger.kernel.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=MiObWLNnp/lNms37zqYTibfnnjS8M46+hGSJ1XV8gLo=; b=VZwshafbnjF8fP6z+eRs3iFzx6OfrL4sbR4Dmumf/8FQ2fEeitFPebgDS5vpSryxNj 5idgTHDLYoByAqiNkPOHdVjDT98gOsWYCFrmjOW+1sB/e2PPA8UqUd/EDFWPhVVSAzij Vc1rE4F7E7KW1JqWMPkBUZSfBgFsTfTsGjXQL0SOJ+hO4hZ0r1jrKCRNY47NHqNOxeO5 SXeuXN7uOhuCLhPsFTW09tVW1UoVYrFUOZQZ1v6z9F4s5Q5yHP87AJRjW5XtUceKF6m4 0h7H/KsC2JsGqs3DwoymvEiulmiT19IEhxQnY3QABnBdR1RJiyJSrntbYUWmzFC2u5zr 3+Yw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1734396041; x=1735000841; 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=MiObWLNnp/lNms37zqYTibfnnjS8M46+hGSJ1XV8gLo=; b=FoPnRXf8sySr5qYMYpEAOB+2Kf0vZ16ca/vTCc+MZ3P705Uv6DUiv1D3BCv4WFInwM Jc0QkLs7+Awn8skDGVSbT9vQVa8uO9eWI1DZAOzfidcJXQrwMU6fAQpt69Hl76211aIo i3OfBGl3wdbYm00YITRSsbU03CsTK3ZnyLRRDmpH1P+HXYaERwvlmOiBDkzrEduXW2zr jONk4OOoLztzW9m9o0MoKwcv+/Z4GvMkP/qgOF/ybesD+10teOlA0VxCRsmVXyk8G9IT t7XQp14CCmKRWLZcbYwszYN2M8PHHhZgVDyjui7ySHf2SlYoBLdcJS7IYdSWKzHnpwt0 yJAQ== X-Forwarded-Encrypted: i=1; AJvYcCVWT55ie5d9Tkqv178HLEWu6CCCMezXScmnWTYHt83IlV1ACdtDG9VN/wRgMvRVl019RmKa2nTivP4KiX3mc/S5hw==@vger.kernel.org X-Gm-Message-State: AOJu0YxxVGxBzl6u6EdVL3VmveH4d4o6tKGqN66PybBAVetz59R+1PmA Jp5AuvP11JowVdSRHBE4S5MqHcU+bW6100M8PkRssiyWE4aQODvJsLgFH2lRyEo= X-Gm-Gg: ASbGnctgf/wiJzGxXg2bS61VGo68FYy7sqmToQui45LVcv7uQn5WntO1V80hgkymxDn tcXIiefcGKL/sXtN2piwoMnb+zr2J30XRL3PL/DyF8jA4uZR4TioiCKxgFg4foeCXLCRYs5usCq yctMU9/Fn2MXk5IESKXwVSn6bYR3K1tZX7GRUe9yM1Ui3W/P76euxnAsGW8MQaWSmHJkbpWlzgP MGMRV1GgZrd8EnBQ7293/8jx9dZ1ANzn53Eabm1op1umN341Pn7TvnIzh2Bt/g7 X-Google-Smtp-Source: AGHT+IH8FCJNRTQaFIEe2yKx2pyVXPX/RXFWH8bw/lptiC1eLeCGC/id3QDtgZDTMxOwMt4tRDIFNQ== X-Received: by 2002:a05:6512:b86:b0:540:2549:bd36 with SMTP id 2adb3069b0e04-5408cee91eemr5615420e87.4.1734396041274; Mon, 16 Dec 2024 16:40:41 -0800 (PST) Received: from umbar.lan ([192.130.178.90]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-54120ba9ab2sm1009122e87.74.2024.12.16.16.40.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Dec 2024 16:40:39 -0800 (PST) From: Dmitry Baryshkov Date: Tue, 17 Dec 2024 02:40:27 +0200 Subject: [PATCH v7 05/10] drm/bridge: lt9611: switch to using the DRM HDMI codec framework Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241217-drm-bridge-hdmi-connector-v7-5-cb9df2b6a515@linaro.org> References: <20241217-drm-bridge-hdmi-connector-v7-0-cb9df2b6a515@linaro.org> In-Reply-To: <20241217-drm-bridge-hdmi-connector-v7-0-cb9df2b6a515@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=7888; i=dmitry.baryshkov@linaro.org; h=from:subject:message-id; bh=blHynooi501M6eeyloC6kd8uxJXpc03F06fH28uf1hY=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBnYMh52FXP1fKxK+0R3wZhZ+fIrR7VxCUkl22NL bzIzKhf9vqJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCZ2DIeQAKCRCLPIo+Aiko 1SYOCACoLRrXMLLLKBwLhMhIIooiEL2GKEjCUbiiKZAQLQnJP5TNMcMTF+rkeKxAOwepg01uWGj A7NcL5FYFwlg/VDGlkCznomFRaan9F++Jd715RWajT++oReLR85CG3G+pMmh077z3zDnFHuMBrZ xsKhjrFnL2yt/xNB4yOuWPCF9EOUruVtYyUpf91SqpERjCGgVg0rJ8xb1+H+Uz05JTZ1vKimwM8 pQ+/HO0hJixjbqu6icuDte4WWJVo3NLdVg91oT1Q4y5hF5xPrw8n0XiK3r/v8AGpZKRPT7B2YOC Zn0Aospnu+lC6trrWI9lZz3WE0siwNMo/0aNz4BKrqNF3O9e X-Developer-Key: i=dmitry.baryshkov@linaro.org; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A 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. Reviewed-by: Maxime Ripard Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/bridge/lontium-lt9611.c | 170 +++++++++++++------------------- 1 file changed, 68 insertions(+), 102 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index 698a9a01783d28edc734b6932a7768978de65ffc..f0bcb8798467e86708df97dd963b9c69529f4981 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; @@ -864,6 +863,10 @@ 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; @@ -897,6 +900,11 @@ 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; @@ -940,6 +948,55 @@ 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, @@ -960,6 +1017,10 @@ 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, @@ -1013,102 +1074,6 @@ 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; @@ -1172,6 +1137,9 @@ 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 | @@ -1180,6 +1148,9 @@ 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_dev = dev; + lt9611->bridge.hdmi_codec_max_i2s_playback_channels = 8; + lt9611->bridge.hdmi_codec_dai_port = 2; drm_bridge_add(<9611->bridge); @@ -1201,10 +1172,6 @@ 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: @@ -1225,7 +1192,6 @@ 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);