From patchwork Fri Jan 14 20:16:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Brian Norris X-Patchwork-Id: 531984 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 5E94AC433EF for ; Fri, 14 Jan 2022 20:19:18 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 95E981FD3; Fri, 14 Jan 2022 21:18:26 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 95E981FD3 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1642191556; bh=ReFge8k4EKpPsdeCypEoB090HyNuIsuwi59kH36Kr58=; 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Fri, 14 Jan 2022 12:17:15 -0800 (PST) Received: from localhost ([2620:15c:202:201:76ab:ede1:503d:1c39]) by smtp.gmail.com with UTF8SMTPSA id p50sm5982690pfw.51.2022.01.14.12.17.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 14 Jan 2022 12:17:14 -0800 (PST) From: Brian Norris To: Heiko Stuebner , Liam Girdwood , Mark Brown , David Airlie , Daniel Vetter Subject: [PATCH 2/3] drm/rockchip: cdn-dp: Support HDMI codec plug-change callback Date: Fri, 14 Jan 2022 12:16:51 -0800 Message-Id: <20220114121515.2.I20d754a1228aa5c51a18c8eb15a2c60dec25b639@changeid> X-Mailer: git-send-email 2.34.1.703.g22d0c6ccf7-goog In-Reply-To: <20220114201652.3875838-1-briannorris@chromium.org> References: <20220114201652.3875838-1-briannorris@chromium.org> MIME-Version: 1.0 Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org, Lin Huang , Brian Norris , Sandy Huang , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, Rob Herring , linux-arm-kernel@lists.infradead.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Some audio servers like to monitor a jack device (perhaps combined with EDID, for audio-presence info) to determine DP/HDMI audio presence. Signed-off-by: Brian Norris --- drivers/gpu/drm/rockchip/cdn-dp-core.c | 28 ++++++++++++++++++++++++++ drivers/gpu/drm/rockchip/cdn-dp-core.h | 4 ++++ 2 files changed, 32 insertions(+) diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c index 16497c31d9f9..edd6a1fc46cd 100644 --- a/drivers/gpu/drm/rockchip/cdn-dp-core.c +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c @@ -586,6 +586,13 @@ static bool cdn_dp_check_link_status(struct cdn_dp_device *dp) return drm_dp_channel_eq_ok(link_status, min(port->lanes, sink_lanes)); } +static void cdn_dp_audio_handle_plugged_change(struct cdn_dp_device *dp, + bool plugged) +{ + if (dp->codec_dev) + dp->plugged_cb(dp->codec_dev, plugged); +} + static void cdn_dp_encoder_enable(struct drm_encoder *encoder) { struct cdn_dp_device *dp = encoder_to_dp(encoder); @@ -641,6 +648,9 @@ static void cdn_dp_encoder_enable(struct drm_encoder *encoder) DRM_DEV_ERROR(dp->dev, "Failed to valid video %d\n", ret); goto out; } + + cdn_dp_audio_handle_plugged_change(dp, true); + out: mutex_unlock(&dp->lock); } @@ -651,6 +661,8 @@ static void cdn_dp_encoder_disable(struct drm_encoder *encoder) int ret; mutex_lock(&dp->lock); + cdn_dp_audio_handle_plugged_change(dp, false); + if (dp->active) { ret = cdn_dp_disable(dp); if (ret) { @@ -846,11 +858,27 @@ static int cdn_dp_audio_get_eld(struct device *dev, void *data, return 0; } +static int cdn_dp_audio_hook_plugged_cb(struct device *dev, void *data, + hdmi_codec_plugged_cb fn, + struct device *codec_dev) +{ + struct cdn_dp_device *dp = dev_get_drvdata(dev); + + mutex_lock(&dp->lock); + dp->plugged_cb = fn; + dp->codec_dev = codec_dev; + cdn_dp_audio_handle_plugged_change(dp, dp->connected); + mutex_unlock(&dp->lock); + + return 0; +} + static const struct hdmi_codec_ops audio_codec_ops = { .hw_params = cdn_dp_audio_hw_params, .audio_shutdown = cdn_dp_audio_shutdown, .mute_stream = cdn_dp_audio_mute_stream, .get_eld = cdn_dp_audio_get_eld, + .hook_plugged_cb = cdn_dp_audio_hook_plugged_cb, .no_capture_mute = 1, }; diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.h b/drivers/gpu/drm/rockchip/cdn-dp-core.h index 81ac9b658a70..d808a9de45ed 100644 --- a/drivers/gpu/drm/rockchip/cdn-dp-core.h +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.h @@ -10,6 +10,7 @@ #include #include #include +#include #include "rockchip_drm_drv.h" @@ -101,5 +102,8 @@ struct cdn_dp_device { u8 dpcd[DP_RECEIVER_CAP_SIZE]; bool sink_has_audio; + + hdmi_codec_plugged_cb plugged_cb; + struct device *codec_dev; }; #endif /* _CDN_DP_CORE_H */