From patchwork Fri Nov 25 09:44:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiaxin Yu X-Patchwork-Id: 13055684 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 EA61CC4332F for ; Fri, 25 Nov 2022 09:56:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=HNGSdVJuzWMDqY+R5z+j52j9Bs9xb8nNqJ9Cjr2yZRs=; b=1dJsVTyKqspmIW Bp6SXhTicuxxVq8DxPGV3ARnxzN21lopoSSdH6YDptMTsYDJh3/LkeugkPBoUmNd3HJasP7LMKwqq Ke+uIgBk7+ekV9IwRA8oOkLJnXwO8hKV0UpHN2WH67JIDUXhKAZwv2pfXO56FwRQ1dTAw3y0VnOx/ ZpZWoN1lfEJuLw0yfqEQ4nfHkkyVAgnjiFyVLHWushOqhV//rzCzYaZw5AjjV10yyQqSB8ly2zgoX 7n1VJK4K/6kHWf0vMSexB/xfqKY3bcIhpY5PZ5mFowAsv2QlrQxL80qQv9VQKuCeSTCH/nGqKcSGu mXPnhs+I2s9xMKwnhLhw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oyVQ9-00F9HR-3a; Fri, 25 Nov 2022 09:54:57 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oyVGX-00F3U5-AF; Fri, 25 Nov 2022 09:45:03 +0000 X-UUID: 105d4ba2d80b4432aa6540b51604d8b2-20221125 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=JypvWOdNIEwz4ySGYXhZj/2FoIW7K0jRr/E327f+FUM=; b=gfzpOjLywtPVCJsbZSnPvfHNTndgTWxnbMctwJlUDjrFBFvXwy9rRtnoJ/9FtrkOPLqZZtw5HvA6yIICYgoKppIXodZ7KdCd4Y2zilkYzIS2GWckPR78+13ot9RtSDU2f3ndaJnrSz8uCcFGXR1peua/3jSGCEizapkABWB9d5w=; X-CID-UNFAMILIAR: 1 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.14,REQID:e68054e1-694b-4ce7-a8ee-444093d86a06,IP:0,U RL:0,TC:0,Content:-25,EDM:0,RT:0,SF:100,FILE:0,BULK:0,RULE:Release_Ham,ACT ION:release,TS:75 X-CID-INFO: VERSION:1.1.14,REQID:e68054e1-694b-4ce7-a8ee-444093d86a06,IP:0,URL :0,TC:0,Content:-25,EDM:0,RT:0,SF:100,FILE:0,BULK:0,RULE:Spam_GS981B3D,ACT ION:quarantine,TS:75 X-CID-META: VersionHash:dcaaed0,CLOUDID:7d184ff9-3a34-4838-abcf-dfedf9dd068e,B ulkID:221125174421V9P0XGPU,BulkQuantity:2,Recheck:0,SF:38|28|16|19|48,TC:n il,Content:0,EDM:-3,IP:nil,URL:0,File:nil,Bulk:40,QS:nil,BEC:nil,COL:0 X-UUID: 105d4ba2d80b4432aa6540b51604d8b2-20221125 Received: from mtkmbs13n1.mediatek.inc [(172.21.101.193)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1037168119; Fri, 25 Nov 2022 02:44:51 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Fri, 25 Nov 2022 17:44:19 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Fri, 25 Nov 2022 17:44:18 +0800 From: Jiaxin Yu To: , , , , , , , CC: , , , , , , , , , Jiaxin Yu Subject: [PATCH v2 3/3] drm/bridge: it6505: Add audio support Date: Fri, 25 Nov 2022 17:44:13 +0800 Message-ID: <20221125094413.4940-4-jiaxin.yu@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221125094413.4940-1-jiaxin.yu@mediatek.com> References: <20221125094413.4940-1-jiaxin.yu@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221125_014501_513570_03217FF6 X-CRM114-Status: GOOD ( 16.03 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add audio support for it6505 1. Bridge to hdmi-codec to support audio feature. At the same time, the function of automatically detecting audio is removed. 2. It is observed that some DP-to-HDMI dongles will get into bad states if sending InfoFrame without audio data. Defer to enable it6505's audio feature when PCM triggers START or RESUME. Signed-off-by: Jiaxin Yu --- drivers/gpu/drm/bridge/ite-it6505.c | 81 ++++++++++++++++++++++++++--- 1 file changed, 75 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c index dfe4351c9bdd..1f1f37b3df83 100644 --- a/drivers/gpu/drm/bridge/ite-it6505.c +++ b/drivers/gpu/drm/bridge/ite-it6505.c @@ -2159,7 +2159,6 @@ static void it6505_stop_link_train(struct it6505 *it6505) static void it6505_link_train_ok(struct it6505 *it6505) { - struct device *dev = &it6505->client->dev; it6505->link_state = LINK_OK; /* disalbe mute enable avi info frame */ @@ -2167,11 +2166,6 @@ static void it6505_link_train_ok(struct it6505 *it6505) it6505_set_bits(it6505, REG_INFOFRAME_CTRL, EN_VID_CTRL_PKT, EN_VID_CTRL_PKT); - if (it6505_audio_input(it6505)) { - DRM_DEV_DEBUG_DRIVER(dev, "Enable audio!"); - it6505_enable_audio(it6505); - } - if (it6505->hdcp_desired) it6505_start_hdcp(it6505); } @@ -2823,6 +2817,45 @@ static void __maybe_unused it6505_audio_shutdown(struct device *dev, void *data) it6505_disable_audio(it6505); } +static int it6505_audio_hw_params(struct device *dev, void *data, + struct hdmi_codec_daifmt *daifmt, + struct hdmi_codec_params *params) +{ + struct it6505 *it6505 = dev_get_drvdata(dev); + + return it6505_audio_setup_hw_params(it6505, params); +} + +static int it6505_audio_setup_trigger(struct it6505 *it6505, int cmd) +{ + struct device *dev = &it6505->client->dev; + + DRM_DEV_DEBUG_DRIVER(dev, "event: %d", cmd); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + queue_delayed_work(system_wq, &it6505->delayed_audio, + msecs_to_jiffies(180)); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + cancel_delayed_work(&it6505->delayed_audio); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int it6505_audio_trigger(struct device *dev, int cmd) +{ + struct it6505 *it6505 = dev_get_drvdata(dev); + + return it6505_audio_setup_trigger(it6505, cmd); +} + static int __maybe_unused it6505_audio_hook_plugged_cb(struct device *dev, void *data, hdmi_codec_plugged_cb fn, @@ -2837,6 +2870,36 @@ static int __maybe_unused it6505_audio_hook_plugged_cb(struct device *dev, return 0; } +static const struct hdmi_codec_ops it6505_audio_codec_ops = { + .hw_params = it6505_audio_hw_params, + .trigger = it6505_audio_trigger, + .audio_shutdown = it6505_audio_shutdown, + .hook_plugged_cb = it6505_audio_hook_plugged_cb, +}; + +static int it6505_register_audio_driver(struct device *dev) +{ + struct it6505 *it6505 = dev_get_drvdata(dev); + struct hdmi_codec_pdata codec_data = { + .ops = &it6505_audio_codec_ops, + .max_i2s_channels = 8, + .i2s = 1, + .data = it6505, + }; + struct platform_device *pdev; + + pdev = platform_device_register_data(dev, HDMI_CODEC_DRV_NAME, + PLATFORM_DEVID_AUTO, &codec_data, + sizeof(codec_data)); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + + INIT_DELAYED_WORK(&it6505->delayed_audio, it6505_delayed_audio); + DRM_DEV_DEBUG_DRIVER(dev, "bound to %s", HDMI_CODEC_DRV_NAME); + + return 0; +} + static inline struct it6505 *bridge_to_it6505(struct drm_bridge *bridge) { return container_of(bridge, struct it6505, bridge); @@ -3302,6 +3365,12 @@ static int it6505_i2c_probe(struct i2c_client *client, return err; } + err = it6505_register_audio_driver(dev); + if (err < 0) { + DRM_DEV_ERROR(dev, "Failed to register audio driver: %d", err); + return err; + } + INIT_WORK(&it6505->link_works, it6505_link_training_work); INIT_WORK(&it6505->hdcp_wait_ksv_list, it6505_hdcp_wait_ksv_list); INIT_DELAYED_WORK(&it6505->hdcp_work, it6505_hdcp_work);