[v6,7/7] drm/msm/hdmi: use DRM HDMI Audio framework

Message ID	20250124-bridge-hdmi-connector-v6-7-1592632327f7@linaro.org
State	New
Headers	show Received: from mail-lf1-f41.google.com (mail-lf1-f41.google.com [209.85.167.41]) (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 B4FF41F37DB for <linux-arm-msm@vger.kernel.org>; Fri, 24 Jan 2025 21:48:01 +0000 (UTC) From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Date: Fri, 24 Jan 2025 23:47:47 +0200 Subject: [PATCH v6 7/7] drm/msm/hdmi: use DRM HDMI Audio framework Precedence: bulk MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250124-bridge-hdmi-connector-v6-7-1592632327f7@linaro.org> References: <20250124-bridge-hdmi-connector-v6-0-1592632327f7@linaro.org> In-Reply-To: <20250124-bridge-hdmi-connector-v6-0-1592632327f7@linaro.org> To: Andrzej Hajda <andrzej.hajda@intel.com>, Neil Armstrong <neil.armstrong@linaro.org>, Robert Foss <rfoss@kernel.org>, Laurent Pinchart <Laurent.pinchart@ideasonboard.com>, Jonas Karlman <jonas@kwiboo.se>, Jernej Skrabec <jernej.skrabec@gmail.com>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, David Airlie <airlied@gmail.com>, Rob Clark <robdclark@gmail.com>, Abhinav Kumar <quic_abhinavk@quicinc.com>, Sean Paul <sean@poorly.run>, Marijn Suijten <marijn.suijten@somainline.org>, Simona Vetter <simona@ffwll.ch>, Simona Vetter <simona.vetter@ffwll.ch> Cc: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org
Series	drm/msm: make use of the HDMI connector infrastructure \| expand [v6,0/7] drm/msm: make use of the HDMI connector infrastructure [v6,1/7] drm/msm/hdmi: switch to atomic bridge callbacks [v6,2/7] drm/msm/hdmi: program HDMI timings during atomic_pre_enable [v6,3/7] drm/msm/hdmi: make use of the drm_connector_hdmi framework [v6,4/7] drm/msm/hdmi: get rid of hdmi_mode [v6,5/7] drm/msm/hdmi: update HDMI_GEN_PKT_CTRL_GENERIC0_UPDATE definition [v6,6/7] drm/msm/hdmi: also send the SPD and HDMI Vendor Specific InfoFrames [v6,7/7] drm/msm/hdmi: use DRM HDMI Audio framework

diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c index 6b77e0fb8d5ec218dfbf58215e2e12ad1dfb1b85..248541ff449204c72cd444458dadb9ae4a0a53d1 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi.c @@ -14,7 +14,6 @@ #include <drm/drm_of.h> #include <drm/display/drm_hdmi_state_helper.h> -#include <sound/hdmi-codec.h> #include "hdmi.h" void msm_hdmi_set_mode(struct hdmi *hdmi, bool power_on) @@ -245,87 +244,6 @@ static const struct hdmi_platform_config hdmi_tx_8974_config = { .hpd_freq = hpd_clk_freq_8x74, }; -/* - * HDMI audio codec callbacks - */ -static int msm_hdmi_audio_hw_params(struct device *dev, void *data, - struct hdmi_codec_daifmt *daifmt, - struct hdmi_codec_params *params) -{ - struct hdmi *hdmi = dev_get_drvdata(dev); - unsigned int rate; - int ret; - - DRM_DEV_DEBUG(dev, "%u Hz, %d bit, %d channels\n", params->sample_rate, - params->sample_width, params->cea.channels); - - switch (params->sample_rate) { - case 32000: - rate = HDMI_SAMPLE_RATE_32KHZ; - break; - case 44100: - rate = HDMI_SAMPLE_RATE_44_1KHZ; - break; - case 48000: - rate = HDMI_SAMPLE_RATE_48KHZ; - break; - case 88200: - rate = HDMI_SAMPLE_RATE_88_2KHZ; - break; - case 96000: - rate = HDMI_SAMPLE_RATE_96KHZ; - break; - case 176400: - rate = HDMI_SAMPLE_RATE_176_4KHZ; - break; - case 192000: - rate = HDMI_SAMPLE_RATE_192KHZ; - break; - default: - DRM_DEV_ERROR(dev, "rate[%d] not supported!\n", - params->sample_rate); - return -EINVAL; - } - - ret = drm_atomic_helper_connector_hdmi_update_audio_infoframe(hdmi->connector, - &params->cea); - if (ret) - return ret; - - msm_hdmi_audio_info_setup(hdmi, rate, params->cea.channels); - - return 0; -} - -static void msm_hdmi_audio_shutdown(struct device *dev, void *data) -{ - struct hdmi *hdmi = dev_get_drvdata(dev); - - drm_atomic_helper_connector_hdmi_clear_audio_infoframe(hdmi->connector); - msm_hdmi_audio_disable(hdmi); -} - -static const struct hdmi_codec_ops msm_hdmi_audio_codec_ops = { - .hw_params = msm_hdmi_audio_hw_params, - .audio_shutdown = msm_hdmi_audio_shutdown, -}; - -static struct hdmi_codec_pdata codec_data = { - .ops = &msm_hdmi_audio_codec_ops, - .max_i2s_channels = 8, - .i2s = 1, -}; - -static int msm_hdmi_register_audio_driver(struct hdmi *hdmi, struct device *dev) -{ - hdmi->audio_pdev = platform_device_register_data(dev, - HDMI_CODEC_DRV_NAME, - PLATFORM_DEVID_AUTO, - &codec_data, - sizeof(codec_data)); - return PTR_ERR_OR_ZERO(hdmi->audio_pdev); -} - static int msm_hdmi_bind(struct device *dev, struct device *master, void *data) { struct msm_drm_private *priv = dev_get_drvdata(master); @@ -337,12 +255,6 @@ static int msm_hdmi_bind(struct device *dev, struct device *master, void *data) return err; priv->hdmi = hdmi; - err = msm_hdmi_register_audio_driver(hdmi, dev); - if (err) { - DRM_ERROR("Failed to attach an audio codec %d\n", err); - hdmi->audio_pdev = NULL; - } - return 0; } @@ -352,9 +264,6 @@ static void msm_hdmi_unbind(struct device *dev, struct device *master, struct msm_drm_private *priv = dev_get_drvdata(master); if (priv->hdmi) { - if (priv->hdmi->audio_pdev) - platform_device_unregister(priv->hdmi->audio_pdev); - if (priv->hdmi->bridge) msm_hdmi_hpd_disable(priv->hdmi); diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.h b/drivers/gpu/drm/msm/hdmi/hdmi.h index ab169b77377097dc22c0c718f65024cb8ad1d317..88a41be7c6fc2f878a1c372a0c75b3277f24f893 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi.h +++ b/drivers/gpu/drm/msm/hdmi/hdmi.h @@ -33,7 +33,6 @@ struct hdmi_hdcp_ctrl; struct hdmi { struct drm_device *dev; struct platform_device *pdev; - struct platform_device *audio_pdev; const struct hdmi_platform_config *config; @@ -205,16 +204,15 @@ static inline int msm_hdmi_pll_8998_init(struct platform_device *pdev) /* * audio: */ -#define HDMI_SAMPLE_RATE_32KHZ 0 -#define HDMI_SAMPLE_RATE_44_1KHZ 1 -#define HDMI_SAMPLE_RATE_48KHZ 2 -#define HDMI_SAMPLE_RATE_88_2KHZ 3 -#define HDMI_SAMPLE_RATE_96KHZ 4 -#define HDMI_SAMPLE_RATE_176_4KHZ 5 -#define HDMI_SAMPLE_RATE_192KHZ 6 - -int msm_hdmi_audio_info_setup(struct hdmi *hdmi, int rate, int channels); -int msm_hdmi_audio_disable(struct hdmi *hdmi); +struct hdmi_codec_daifmt; +struct hdmi_codec_params; + +int msm_hdmi_bridge_audio_prepare(struct drm_connector *connector, + struct drm_bridge *bridge, + struct hdmi_codec_daifmt *daifmt, + struct hdmi_codec_params *params); +void msm_hdmi_bridge_audio_shutdown(struct drm_connector *connector, + struct drm_bridge *bridge); /* * hdmi bridge: diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_audio.c b/drivers/gpu/drm/msm/hdmi/hdmi_audio.c index 924654bfb48cf17feadea1c0661ee6ee4e1b4589..9c5b5310bfeb54902d7d0687909afc79e320f560 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi_audio.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi_audio.c @@ -4,7 +4,12 @@ * Author: Rob Clark <robdclark@gmail.com> */ +#include <drm/display/drm_hdmi_state_helper.h> + #include <linux/hdmi.h> + +#include <sound/hdmi-codec.h> + #include "hdmi.h" /* Supported HDMI Audio sample rates */ @@ -68,7 +73,8 @@ static const struct hdmi_msm_audio_arcs *get_arcs(unsigned long int pixclock) return NULL; } -static int msm_hdmi_audio_update(struct hdmi *hdmi) +static int msm_hdmi_audio_update(struct hdmi *hdmi, + struct drm_connector *connector) { struct hdmi_audio *audio = &hdmi->audio; const struct hdmi_msm_audio_arcs *arcs = NULL; @@ -76,7 +82,7 @@ static int msm_hdmi_audio_update(struct hdmi *hdmi) uint32_t acr_pkt_ctrl, vbi_pkt_ctrl, aud_pkt_ctrl; uint32_t audio_config; - if (!hdmi->connector->display_info.is_hdmi) + if (!connector->display_info.is_hdmi) return -EINVAL; DBG("audio: enabled=%d, channels=%d, rate=%d", @@ -192,29 +198,72 @@ static int msm_hdmi_audio_update(struct hdmi *hdmi) return 0; } -int msm_hdmi_audio_info_setup(struct hdmi *hdmi, int rate, int channels) +int msm_hdmi_bridge_audio_prepare(struct drm_connector *connector, + struct drm_bridge *bridge, + struct hdmi_codec_daifmt *daifmt, + struct hdmi_codec_params *params) { - if (!hdmi) - return -ENXIO; - - if ((rate < 0) || (rate >= MSM_HDMI_SAMPLE_RATE_MAX)) + struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge); + struct hdmi *hdmi = hdmi_bridge->hdmi; + unsigned int rate; + int ret; + + drm_dbg_driver(bridge->dev, "%u Hz, %d bit, %d channels\n", + params->sample_rate, + params->sample_width, + params->cea.channels); + + switch (params->sample_rate) { + case 32000: + rate = MSM_HDMI_SAMPLE_RATE_32KHZ; + break; + case 44100: + rate = MSM_HDMI_SAMPLE_RATE_44_1KHZ; + break; + case 48000: + rate = MSM_HDMI_SAMPLE_RATE_48KHZ; + break; + case 88200: + rate = MSM_HDMI_SAMPLE_RATE_88_2KHZ; + break; + case 96000: + rate = MSM_HDMI_SAMPLE_RATE_96KHZ; + break; + case 176400: + rate = MSM_HDMI_SAMPLE_RATE_176_4KHZ; + break; + case 192000: + rate = MSM_HDMI_SAMPLE_RATE_192KHZ; + break; + default: + drm_err(bridge->dev, "rate[%d] not supported!\n", + params->sample_rate); return -EINVAL; + } + + ret = drm_atomic_helper_connector_hdmi_update_audio_infoframe(connector, + &params->cea); + if (ret) + return ret; hdmi->audio.rate = rate; - hdmi->audio.channels = channels; + hdmi->audio.channels = params->cea.channels; hdmi->audio.enabled = true; - return msm_hdmi_audio_update(hdmi); + return msm_hdmi_audio_update(hdmi, connector); } -int msm_hdmi_audio_disable(struct hdmi *hdmi) +void msm_hdmi_bridge_audio_shutdown(struct drm_connector *connector, + struct drm_bridge *bridge) { - if (!hdmi) - return -ENXIO; + struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge); + struct hdmi *hdmi = hdmi_bridge->hdmi; + + drm_atomic_helper_connector_hdmi_clear_audio_infoframe(connector); hdmi->audio.rate = 0; hdmi->audio.channels = 2; hdmi->audio.enabled = false; - return msm_hdmi_audio_update(hdmi); + msm_hdmi_audio_update(hdmi, connector); } diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c index c31e1d33593de6480c0c2b7cb322a85e645ff332..8a1bbcf578b0749480799d9e5b2baf3778322edc 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c @@ -470,6 +470,8 @@ static const struct drm_bridge_funcs msm_hdmi_bridge_funcs = { .hdmi_tmds_char_rate_valid = msm_hdmi_bridge_tmds_char_rate_valid, .hdmi_clear_infoframe = msm_hdmi_bridge_clear_infoframe, .hdmi_write_infoframe = msm_hdmi_bridge_write_infoframe, + .hdmi_audio_prepare = msm_hdmi_bridge_audio_prepare, + .hdmi_audio_shutdown = msm_hdmi_bridge_audio_shutdown, }; static void @@ -507,6 +509,9 @@ int msm_hdmi_bridge_init(struct hdmi *hdmi) DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_HDMI | DRM_BRIDGE_OP_EDID; + bridge->hdmi_audio_max_i2s_playback_channels = 8; + bridge->hdmi_audio_dev = &hdmi->pdev->dev; + bridge->hdmi_audio_dai_port = -1; ret = devm_drm_bridge_add(hdmi->dev->dev, bridge); if (ret)

[v6,7/7] drm/msm/hdmi: use DRM HDMI Audio framework

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