From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lf1-f49.google.com (mail-lf1-f49.google.com [209.85.167.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 073572797AB for ; Thu, 5 Jun 2025 17:53:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.49 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749145988; cv=none; b=rGkhGLtm8HBlh0U09VvFGmTh+Km5Kab11gzXxLz2gBMkeTwlt8H+PUI0yBNtEiSBLgrL5Bsj7UVn6AgfAadixCiGdL9q3GQaiDV0tOkYrCO3qQyImXNrDzsJ6i91+VCYYXMpwKYWvO5f4CTilrLPpatFGe6N6QdKosMQBXdb6NA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749145988; c=relaxed/simple; bh=eN2NqpRnpXYpl4E3GCmZNzKt19bmwjyh05by15ZauKc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Pr5Tpdk83sClhm+Vjls/w0KapRt9BV9MNUo9/Qm/2+e57z2qrj7Ju4eHMfjPKF7HQAd0jegIxcRNROPjWG9XTvgP95FBTrePirGA1nb4hnHRMA6jtJzgPI9k9RoSzF8u0KPlCKNdO456l7RwF8OLDUsleOmzPpezdYVtRCMtDTY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org; spf=pass smtp.mailfrom=chromium.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b=Q9SfuKhf; arc=none smtp.client-ip=209.85.167.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="Q9SfuKhf" Received: by mail-lf1-f49.google.com with SMTP id 2adb3069b0e04-55350d0eedeso1399610e87.2 for ; Thu, 05 Jun 2025 10:53:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1749145984; x=1749750784; darn=vger.kernel.org; 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=1/BKOipaa0AeDKKmUIkRbQ0YnQTBaMveRhFI1BloNvM=; b=Q9SfuKhflYnlcPWMjOga76HYIaNOo02cO//qVkzvyO8fknsjawD9AYiFXh36Ow56+6 8E3FJ9Nx/kMata0brO30hXR9hlcObkNkTqc58bnjj/nimFv6eoTBUUTmH8x4CUV3u16A Tj1keHwAJLI2q9QkggPCcwKa9mf+lxhP88p1w= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1749145984; x=1749750784; 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=1/BKOipaa0AeDKKmUIkRbQ0YnQTBaMveRhFI1BloNvM=; b=Ic8Bj6nm5txYoKM3yxF/+uxTAEoQMrJWvhtku1Z/6w5tKq2EIf8IDzN6mAdyy7Pd2V EtL9QHXlLWRWbX5Ax6HNRtoPYzIZ/vmj7q6xFCIw07z7xH5KrQoiAJaT2QVwiXAEMiZg YhksEG1NDx/2xNsaTk9kDnc8kp3Em1QMWTQpuDldUmVP2T1YmaZ1hSIj8j5pVa6D2C0+ IS1dvgfFlQqRkX30O9GK/cPPKCFA84DenRC3QWV/sMaOVN/EE0H0ra3/sYMvflo8/OS7 DGB+/BNDn0Bi7zM7Ukcjlu27vw+SZtExzJnF/zMaCGx2pQ+P0GVTHUvNAq7TKb7YW55K eNSQ== X-Forwarded-Encrypted: i=1; AJvYcCVUgnqa+CrfRKuNGE6NBq8gRYTRN6rpukWifacA9iAm9pqEmbxACff8gWUQmAxK+np75iuGuqWFJIS8@vger.kernel.org X-Gm-Message-State: AOJu0YyhmNr/mVVRAsjvkuDkm2pIGhdpV1UPoZ2lWlDOQCP8ooyUZ/Dk KW/XptMuTrL4lDIM8DNsBSraNuO/kVzpb7L9wC18ZXFPIjoOsr9IfTSN93SBajlSiA== X-Gm-Gg: ASbGncvwYfKDv8ajq5uT7iAhoLNFrd0RIvRFxy/ur33lUjIw57OGaCE+asGlZ8c2SLL F2p9mhKfYk0rlwLUH95hE4rRMI4xT6I93YopJGcWqaofBeDpxCQyvKs9UIAiwYXgOwggwc2Le10 84z3eDleUL7xgG7GjfUh/Eq6yTwK/LIx7jKNlTsQ2WwXw4CLaHTqZ8p7Ji0e3rcuq5XH3Y68/os 0e04IJetLpIzFzrHg9D/Yw4q2kpfz1Sqpwja+Lljx/ZaFjRN/iu8ro9ZXHOVSvhoV+SUOkqTD7z zleNG1Nq7TZLKzDxIDMiqPe6Z+IMRxpxCJiGpJQfLTx9wCL7M4LsTIPNfkkUJ/g3zfIQzc4ytr2 L9qEC9kQ7AD/MQFwYR1MdE1gOFA== X-Google-Smtp-Source: AGHT+IFdxuqyfHnNl8OVH+/gLEAeEElSe/53dZeUw33MEGW+QrVTJwknGhZW8Toc3Ow5cY8PaKjVgQ== X-Received: by 2002:a05:6512:1289:b0:553:3892:5eaa with SMTP id 2adb3069b0e04-55366c38b6amr15211e87.55.1749145983869; Thu, 05 Jun 2025 10:53:03 -0700 (PDT) Received: from ribalda.c.googlers.com (90.52.88.34.bc.googleusercontent.com. [34.88.52.90]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-553379379c2sm2641210e87.251.2025.06.05.10.53.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Jun 2025 10:53:03 -0700 (PDT) From: Ricardo Ribalda Date: Thu, 05 Jun 2025 17:52:55 +0000 Subject: [PATCH v2 02/12] media: v4l: fwnode: Support ACPI's _PLD for v4l2_fwnode_device_parse Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250605-uvc-orientation-v2-2-5710f9d030aa@chromium.org> References: <20250605-uvc-orientation-v2-0-5710f9d030aa@chromium.org> In-Reply-To: <20250605-uvc-orientation-v2-0-5710f9d030aa@chromium.org> To: Laurent Pinchart , Hans de Goede , Mauro Carvalho Chehab , Hans Verkuil , Sakari Ailus , Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Linus Walleij , Bartosz Golaszewski , "Rafael J. Wysocki" , Len Brown Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, linux-acpi@vger.kernel.org, Ricardo Ribalda X-Mailer: b4 0.14.2 Currently v4l2_fwnode_device_parse() obtains the orientation and rotation via fwnode properties. Extend the function to support as well ACPI devices with _PLD info. We give a higher priority to fwnode, because it might contain quirks injected via swnodes. Signed-off-by: Ricardo Ribalda --- drivers/media/v4l2-core/v4l2-fwnode.c | 85 ++++++++++++++++++++++++++++++++--- 1 file changed, 79 insertions(+), 6 deletions(-) diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c index cb153ce42c45d69600a3ec4e59a5584d7e791a2a..379290ab3cfde74c8f663d61837a9a95011b5ae0 100644 --- a/drivers/media/v4l2-core/v4l2-fwnode.c +++ b/drivers/media/v4l2-core/v4l2-fwnode.c @@ -15,6 +15,7 @@ * Author: Guennadi Liakhovetski */ #include +#include #include #include #include @@ -807,16 +808,65 @@ int v4l2_fwnode_connector_add_link(struct fwnode_handle *fwnode, } EXPORT_SYMBOL_GPL(v4l2_fwnode_connector_add_link); -int v4l2_fwnode_device_parse(struct device *dev, - struct v4l2_fwnode_device_properties *props) +static int v4l2_fwnode_device_parse_acpi(struct device *dev, + struct v4l2_fwnode_device_properties *props) +{ + struct acpi_pld_info *pld; + int ret = 0; + + if (!is_acpi_device_node(dev_fwnode(dev))) + return 0; + + if (!acpi_get_physical_device_location(ACPI_HANDLE(dev), &pld)) { + dev_dbg(dev, "acpi _PLD call failed\n"); + return 0; + } + + if (props->orientation != V4L2_FWNODE_PROPERTY_UNSET) { + switch (pld->panel) { + case ACPI_PLD_PANEL_FRONT: + props->orientation = V4L2_FWNODE_ORIENTATION_FRONT; + break; + case ACPI_PLD_PANEL_BACK: + props->orientation = V4L2_FWNODE_ORIENTATION_BACK; + break; + case ACPI_PLD_PANEL_TOP: + case ACPI_PLD_PANEL_LEFT: + case ACPI_PLD_PANEL_RIGHT: + case ACPI_PLD_PANEL_UNKNOWN: + props->orientation = V4L2_FWNODE_ORIENTATION_EXTERNAL; + break; + default: + dev_dbg(dev, "Unknown _PLD panel val %d\n", pld->panel); + ret = -EINVAL; + goto done; + } + } + + if (props->rotation != V4L2_FWNODE_PROPERTY_UNSET) { + switch (pld->rotation) { + case 0 ... 7: + props->rotation = pld->rotation * 45; + break; + default: + dev_dbg(dev, "Unknown _PLD rotation val %d\n", pld->panel); + ret = -EINVAL; + goto done; + } + } + +done: + ACPI_FREE(pld); + return ret; +} + +static int v4l2_fwnode_device_parse_dt(struct device *dev, + struct v4l2_fwnode_device_properties *props) { struct fwnode_handle *fwnode = dev_fwnode(dev); u32 val; int ret; - memset(props, 0, sizeof(*props)); - - props->orientation = V4L2_FWNODE_PROPERTY_UNSET; ret = fwnode_property_read_u32(fwnode, "orientation", &val); if (!ret) { switch (val) { @@ -833,7 +883,6 @@ int v4l2_fwnode_device_parse(struct device *dev, dev_dbg(dev, "device orientation: %u\n", val); } - props->rotation = V4L2_FWNODE_PROPERTY_UNSET; ret = fwnode_property_read_u32(fwnode, "rotation", &val); if (!ret) { if (val >= 360) { @@ -847,6 +896,30 @@ int v4l2_fwnode_device_parse(struct device *dev, return 0; } + +int v4l2_fwnode_device_parse(struct device *dev, + struct v4l2_fwnode_device_properties *props) +{ + int ret; + + memset(props, 0, sizeof(*props)); + + props->orientation = V4L2_FWNODE_PROPERTY_UNSET; + props->rotation = V4L2_FWNODE_PROPERTY_UNSET; + + /* Start by looking into swnodes and dt. */ + ret = v4l2_fwnode_device_parse_dt(dev, props); + if (ret) + return ret; + + /* Orientation and rotation found!, we are ready. */ + if (props->orientation != V4L2_FWNODE_PROPERTY_UNSET && + props->rotation != V4L2_FWNODE_PROPERTY_UNSET) + return 0; + + /* Let's check the acpi table. */ + return v4l2_fwnode_device_parse_acpi(dev, props); +} EXPORT_SYMBOL_GPL(v4l2_fwnode_device_parse); /* -- 2.50.0.rc0.642.g800a2b2222-goog