From patchwork Thu Nov 24 08:54:34 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiaxin Yu X-Patchwork-Id: 13054736 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 A2565C433FE for ; Thu, 24 Nov 2022 09:27:23 +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=rOhqDKdSfcAJ6BQ+WbjviWXe8V6r3ued7ev+JEMN+nM=; b=Ng7APKdzFrVZrv YJ3jaQz0n8QPDe6fMirI4LVu/6pUN+g1aAd4ZlxPS1EJMLawd9sz9wWH9rXzqvyJrXZt94LTO39SG 0+RqoPosfubflsVE6haVXvbdU27LZiJOJYrt7wFaPYpkovQwslw6ZUe8jrrFc0Y4HV3qboA5hxzFr THORxE7Trxa0dQbVkCSE2bzJrDOoFULDQ6lzrHN0BrQOEVJ+U3hnMdaTeJHc+alyBSuc74P7hw/bK hiB7k8Uk+UEX4Wc4P3pqOPsnObxzagzS3v6yAU4LQoPnjrhIgpPOJeaBgxPoxs0M9hQ8GuljHSFZ2 KOtNL3c2rCjE3hc/f+pw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oy8UT-0074BA-00; Thu, 24 Nov 2022 09:25:53 +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 1oy8U4-0073sn-Oa; Thu, 24 Nov 2022 09:25:34 +0000 X-UUID: 516fd41b57594688848a69103a97f65e-20221124 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=Se93twhCnANzbyfAp19LflQ7H378k9rkCrI1fa1AgUY=; b=kaE5lrXdlSx/NNQjmuyyQJ7mZv2iZcS635v/rxTauMCA/80UDzSNnVpPucgo7AJXsPuck7eaWhnC9RhND4RbsIwvwLuHawXEmuEEYSOfy1a0708AunRnAL0+tmHnMEcRl8P1wRajLKZn7k/8YbZQ8joNfIdgAwmhrItkXahRLWg=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.14,REQID:b2cbb9a4-8df3-4568-ab4f-f9d3eb1774e9,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:dcaaed0,CLOUDID:435a21dc-6ad4-42ff-91f3-18e0272db660,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0 X-UUID: 516fd41b57594688848a69103a97f65e-20221124 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 233694712; Thu, 24 Nov 2022 02:25:14 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs11n1.mediatek.inc (172.21.101.185) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Thu, 24 Nov 2022 16:54:39 +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; Thu, 24 Nov 2022 16:54:38 +0800 From: Jiaxin Yu To: , , , , , , , CC: , , , , , , , , , Jiaxin Yu Subject: [PATCH 1/3] drm: bridge: it6505: bridge to hdmi-codec Date: Thu, 24 Nov 2022 16:54:34 +0800 Message-ID: <20221124085436.24900-2-jiaxin.yu@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221124085436.24900-1-jiaxin.yu@mediatek.com> References: <20221124085436.24900-1-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-20221124_012528_913167_A524CD5A X-CRM114-Status: GOOD ( 11.96 ) 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 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 | 36 ++++++++++++++++++++++++----- 1 file changed, 30 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c index dfe4351c9bdd..f4e1a1d94ed8 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 +2817,36 @@ static void __maybe_unused it6505_audio_shutdown(struct device *dev, void *data) it6505_disable_audio(it6505); } +static int __maybe_unused 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 __maybe_unused 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,