From patchwork Mon May 29 14:31:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guillaume Ranquet X-Patchwork-Id: 13258823 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 44BC2C77B7A for ; Mon, 29 May 2023 16:40:52 +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:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=T8kackKwLt7aO8Ugb2VaX5tP+PWr2RGmNHfDhyn36Ek=; b=Zn7c61eJScDCmc OPMElBsA541glT+jnYujAEG0S9Fi6h+lAEkPmVQImQZvLXxDKuwvuOmWvUE+vRv9nq4LzuiFHC7zr C8d2aIZbIdZ9aOPMWJRip6NGtLoZxsWJVxGeifM6ibVXhxu8k9hgQLwF0Jxpx660uqDEWT0MX5Yht Pr9vjjiu6ILx/A/bFgwATOEd3uIErZDiIQhi4QjfCPUBn0JaC6qZwBVMYtZj8CRSPBUcxXsFHMiTS RkoXyFS8pfCWwoRvQ7x6fGFUN0dB13HpHnd9MM9CLrgzJv5jV1NpLvYFccePlbgvaaT1Qsz6plxio xEjLGw//DO5WoEYOrVcA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q3fv2-00B9TE-2s; Mon, 29 May 2023 16:40:28 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q3fuu-00B9P7-0B for linux-arm-kernel@bombadil.infradead.org; Mon, 29 May 2023 16:40:20 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Cc:To:In-Reply-To:References: Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Sender:Reply-To:Content-ID:Content-Description; bh=c2Sh4+A1b+81wZLAVdTRbrmRS09i1jRPbv5H6IWS80Q=; b=lmRvxo1sxEH+7bVlur1jNlsce9 kU5GYhwgttZ2XA4bz9ijvrROdf2mjypmnH0L9egtX1W6QabCIg4oHGPVROVnavs0KzdQRAQ/VhKYL vYVwc8DqrmiSdUFhSzweaLVZfpNuNIVp++0I7YKJzPG/w+dlySadSW0vOxWHTvKEDi79KL/U+4hUW Ovd00/TA0GF3aC28Kt5sIY4hJDHT6pEUBJDheQsf9DN5TJq0YK9Bd3R8d05BMnmiN9ZDq0MmzcZkF 957xPOJHrKL0/NLNp1iQRuYZdmBv3oNDCCmE52sBgYY04d4pwCQUqr44DQWucn0W8/itYI8EzDJq1 ep3hx/ag==; Received: from mail-ej1-x62a.google.com ([2a00:1450:4864:20::62a]) by desiato.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q3dzJ-00BudJ-2D for linux-arm-kernel@lists.infradead.org; Mon, 29 May 2023 14:36:48 +0000 Received: by mail-ej1-x62a.google.com with SMTP id a640c23a62f3a-9707313e32eso660973766b.2 for ; Mon, 29 May 2023 07:36:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20221208.gappssmtp.com; s=20221208; t=1685371003; x=1687963003; 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=c2Sh4+A1b+81wZLAVdTRbrmRS09i1jRPbv5H6IWS80Q=; b=hiSqot5Z0TVVzkwYkmdjRaFYGpVkqZ/2l7Z8d2ugq5qKwMiONQBL1+GBaWbf/yIP7z CUE1CBJ5ZqXFY9WXRrUezsKC9Wwr8XoT2GKDadeS36vWTMSqxPY4v4SEjYGwJry/LaVq /o/qOzl/CNrpF9Or/4l+K6JF4xQQu/hUD3RvCC9UB/2uJ9LOCiZf6xO7Gn4v1hweuYrb kRI31ThOkvK8k/B7vfN1rk58gZ+tR0XvafgFGcBCa6m61qLXsXYrYOPFkxnxOZ7IiIE8 tzUUttynUa0Iqjps+GkZo9CoNZ1Y6KAVVMmAkQ9oB5EyCrBJgYl0n/WOL3A0GatmdRxm zVJg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685371003; x=1687963003; 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=c2Sh4+A1b+81wZLAVdTRbrmRS09i1jRPbv5H6IWS80Q=; b=NIjroyhaIpLkIKXg0jQwOEFtpOD4emQvh4XdPRUIqebiBIRBlwk8uGau2rSjT0BXoY u8Qgs+psR5nuQq1XtER6sBPWCLD3CugRHalUg26WsYkg9PscMp5jvfKqOhrwvtVj5y9p wgmjVPy601cunojDdM4xnZ44ai0M3aslcqXUOLyZPi0r0q6cDHHc1yFg4bqsj3WQXhZE nPg+rZ6ez97aj8C2RbITT9/w3uqsgEg3hj/oI58l1kTHJzh2f29D8/6JevXqbnIjsSXB mt2+ZIrRSOtWy+IAvEpAitxVrsgdOYTjStQItFQcPk81r0Qwpti9StYlAfadga0ZYunY o6IQ== X-Gm-Message-State: AC+VfDwEr5NPqalokKsq0MEls+hUKZeQtNTu3qzXFmEJ5qCKeot2mf2p ZQSIDg3ocmVfVUJxOYfsnH7UvA== X-Google-Smtp-Source: ACHHUZ5waXscvjoYNWcuy+rA2rbzsNFah4xpic6XPGtTh3EC757yb2ISi5VAAB9m/SKenAeW2NEWag== X-Received: by 2002:a17:907:c1a:b0:973:84af:66e5 with SMTP id ga26-20020a1709070c1a00b0097384af66e5mr11058579ejc.40.1685371003383; Mon, 29 May 2023 07:36:43 -0700 (PDT) Received: from [127.0.0.1] (abordeaux-655-1-129-86.w90-5.abo.wanadoo.fr. [90.5.10.86]) by smtp.gmail.com with ESMTPSA id le8-20020a170907170800b0096f803afbe3sm5993654ejc.66.2023.05.29.07.36.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 May 2023 07:36:42 -0700 (PDT) From: Guillaume Ranquet Date: Mon, 29 May 2023 16:31:01 +0200 Subject: [PATCH v4 4/8] drm/mediatek: hdmi: make the cec dev optional MIME-Version: 1.0 Message-Id: <20220919-v4-4-687f09a06dd9@baylibre.com> References: <20220919-v4-0-687f09a06dd9@baylibre.com> In-Reply-To: <20220919-v4-0-687f09a06dd9@baylibre.com> To: Chunfeng Yun , Kishon Vijay Abraham I , Vinod Koul , Rob Herring , Krzysztof Kozlowski , Matthias Brugger , Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , CK Hu , Jitao shi Cc: linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Krzysztof Kozlowski , AngeloGioacchino Del Regno , mac.shen@mediatek.com, stuart.lee@mediatek.com, Guillaume Ranquet X-Mailer: b4 0.13-dev X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230529_153645_980103_FE4CABBE X-CRM114-Status: GOOD ( 18.55 ) 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 Make cec device optional in order to support newer versions of the hdmi IP which doesn't require it Signed-off-by: Guillaume Ranquet --- drivers/gpu/drm/mediatek/mtk_hdmi.c | 8 +++-- drivers/gpu/drm/mediatek/mtk_hdmi_common.c | 52 +++++++++++++++++++----------- 2 files changed, 39 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c index 41a7593887fb..4c382aeb94c9 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c @@ -925,10 +925,11 @@ void mtk_hdmi_clk_disable_audio_mt8183(struct mtk_hdmi *hdmi) static enum drm_connector_status mtk_hdmi_update_plugged_status(struct mtk_hdmi *hdmi) { - bool connected; + bool connected = true; mutex_lock(&hdmi->update_plugged_status_lock); - connected = mtk_cec_hpd_high(hdmi->cec_dev); + if (hdmi->cec_dev) + connected = mtk_cec_hpd_high(hdmi->cec_dev); if (hdmi->plugged_cb && hdmi->codec_dev) hdmi->plugged_cb(hdmi->codec_dev, connected); mutex_unlock(&hdmi->update_plugged_status_lock); @@ -1024,7 +1025,8 @@ static int mtk_hdmi_bridge_attach(struct drm_bridge *bridge, return ret; } - mtk_cec_set_hpd_event(hdmi->cec_dev, mtk_hdmi_hpd_event, hdmi->dev); + if (hdmi->cec_dev) + mtk_cec_set_hpd_event(hdmi->cec_dev, mtk_hdmi_hpd_event, hdmi->dev); return 0; } diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c index ead0c30f55b7..d7f3d29138d8 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c @@ -110,28 +110,18 @@ void mtk_hdmi_send_infoframe(struct mtk_hdmi *hdmi, u8 *buffer_spd, size_t bufsz mtk_hdmi_setup_spd_infoframe(hdmi, buffer_spd, bufsz_spd, "mediatek", "On-chip HDMI"); } -int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, struct platform_device *pdev, - const char *const *clk_names, size_t num_clocks) +static int mtk_hdmi_get_cec_dev(struct mtk_hdmi *hdmi, struct device *dev, struct device_node *np) { - struct device *dev = &pdev->dev; - struct device_node *np = dev->of_node; - struct device_node *cec_np, *remote, *i2c_np; + int ret; + struct device_node *cec_np; struct platform_device *cec_pdev; struct regmap *regmap; - struct resource *mem; - int ret; - - ret = mtk_hdmi_get_all_clk(hdmi, np, clk_names, num_clocks); - if (ret) { - dev_err(dev, "Failed to get all clks\n"); - return ret; - } /* The CEC module handles HDMI hotplug detection */ cec_np = of_get_compatible_child(np->parent, "mediatek,mt8173-cec"); if (!cec_np) { dev_err(dev, "Failed to find CEC node\n"); - return -EINVAL; + return -ENOTSUPP; } cec_pdev = of_find_device_by_node(cec_np); @@ -141,7 +131,6 @@ int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, struct platform_device *pdev, return -EPROBE_DEFER; } of_node_put(cec_np); - hdmi->cec_dev = &cec_pdev->dev; /* * The mediatek,syscon-hdmi property contains a phandle link to the * MMSYS_CONFIG device and the register offset of the HDMI_SYS_CFG @@ -150,12 +139,39 @@ int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, struct platform_device *pdev, regmap = syscon_regmap_lookup_by_phandle(np, "mediatek,syscon-hdmi"); ret = of_property_read_u32_index(np, "mediatek,syscon-hdmi", 1, &hdmi->sys_offset); if (IS_ERR(regmap)) - ret = PTR_ERR(regmap); + return PTR_ERR(regmap); if (ret) { - dev_err(dev, "Failed to get system configuration registers: %d\n", ret); - goto put_device; + dev_err(dev, + "Failed to get system configuration registers: %d\n", ret); + return ret; } + hdmi->sys_regmap = regmap; + hdmi->cec_dev = &cec_pdev->dev; + + return 0; +} + +int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, struct platform_device *pdev, + const char *const *clk_names, size_t num_clocks) +{ + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; + struct device_node *remote, *i2c_np; + struct resource *mem; + int ret; + + ret = mtk_hdmi_get_all_clk(hdmi, np, clk_names, num_clocks); + if (ret) { + dev_err(dev, "Failed to get all clks\n"); + return ret; + } + + ret = mtk_hdmi_get_cec_dev(hdmi, dev, np); + if (ret == -ENOTSUPP) + dev_info(dev, "No CEC node found, continuing without"); + else if(ret) + goto put_device; mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!mem) {