From nobody Fri Sep 20 21:34:30 2024 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 82AF4C7EE23 for ; Mon, 29 May 2023 14:37:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230016AbjE2Og7 (ORCPT ); Mon, 29 May 2023 10:36:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229884AbjE2Ogq (ORCPT ); Mon, 29 May 2023 10:36:46 -0400 Received: from mail-ed1-x52d.google.com (mail-ed1-x52d.google.com [IPv6:2a00:1450:4864:20::52d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0554CBE for ; Mon, 29 May 2023 07:36:44 -0700 (PDT) Received: by mail-ed1-x52d.google.com with SMTP id 4fb4d7f45d1cf-5149c76f4dbso2253205a12.1 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=QlfY1pPgX7weBO00NqjDkBTL9I2xXW9OM949F6NxJEoxBoUVoIf7rLCh7kg2y2vzL/ /bIuwq3pExTQxhVTQjoLOKuoFytq+q6MS9PZ06yeBwWRSlbg/KfgaR2W8YwXquZ2ApQi 8KslG16FNlKz7R25armsbXjciVLWCCS0Sapd9t46R0Vzy+PRoC4u+UlCdWlA7Lh5wXZx qsBi0hezFYEKxs2QtuRXKy0D8TIWZfgWDs5LhfyylrSUXpSgrxpic8NsILXod6Z6DXrZ 1sgDxvgWu2xiu36EywQwNPZ+yzUUwAfbPUiOrpad3awg0li/JRlwtDrNi5vOu8mres0I YCSQ== X-Gm-Message-State: AC+VfDztr6oIcr1K830QCta0D8tVitH8UGsObWW7mBpBiSBZEKaPwK5F TbAP/5rLa5YuU25KGLTvJ0FS9g== 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 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable 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 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.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_hdm= i *hdmi) static enum drm_connector_status mtk_hdmi_update_plugged_status(struct mtk_hdmi *hdmi) { - bool connected; + bool connected =3D true; =20 mutex_lock(&hdmi->update_plugged_status_lock); - connected =3D mtk_cec_hpd_high(hdmi->cec_dev); + if (hdmi->cec_dev) + connected =3D 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; } =20 - 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); =20 return 0; } diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c b/drivers/gpu/drm/m= ediatek/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, u= 8 *buffer_spd, size_t bufsz mtk_hdmi_setup_spd_infoframe(hdmi, buffer_spd, bufsz_spd, "mediatek", "On= -chip HDMI"); } =20 -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 =3D &pdev->dev; - struct device_node *np =3D 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 =3D mtk_hdmi_get_all_clk(hdmi, np, clk_names, num_clocks); - if (ret) { - dev_err(dev, "Failed to get all clks\n"); - return ret; - } =20 /* The CEC module handles HDMI hotplug detection */ cec_np =3D 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; } =20 cec_pdev =3D of_find_device_by_node(cec_np); @@ -141,7 +131,6 @@ int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, stru= ct platform_device *pdev, return -EPROBE_DEFER; } of_node_put(cec_np); - hdmi->cec_dev =3D &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, st= ruct platform_device *pdev, regmap =3D syscon_regmap_lookup_by_phandle(np, "mediatek,syscon-hdmi"); ret =3D of_property_read_u32_index(np, "mediatek,syscon-hdmi", 1, &hdmi->= sys_offset); if (IS_ERR(regmap)) - ret =3D 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 =3D regmap; + hdmi->cec_dev =3D &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 =3D &pdev->dev; + struct device_node *np =3D dev->of_node; + struct device_node *remote, *i2c_np; + struct resource *mem; + int ret; + + ret =3D 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 =3D mtk_hdmi_get_cec_dev(hdmi, dev, np); + if (ret =3D=3D -ENOTSUPP) + dev_info(dev, "No CEC node found, continuing without"); + else if(ret) + goto put_device; =20 mem =3D platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!mem) { --=20 2.40.0