linux-kernel - [PATCH v2 04/12] media: ipu-bridge: Use v4l2_fwnode_device

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Message-Id: <20250605-uvc-orientation-v2-4-5710f9d030aa@chromium.org>
Date: Thu, 05 Jun 2025 17:52:57 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
 Hans de Goede <hdegoede@...hat.com>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Hans Verkuil <hverkuil@...all.nl>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, Len Brown <lenb@...nel.org>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-usb@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-gpio@...r.kernel.org, linux-acpi@...r.kernel.org, 
 Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH v2 04/12] media: ipu-bridge: Use v4l2_fwnode_device_parse
 helper

v4l2_fwnode_device_parse now supports acpi devices as well. Use the
helper instead of re-implement the logic.

Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
 drivers/media/pci/intel/ipu-bridge.c | 32 ++++++--------------------------
 1 file changed, 6 insertions(+), 26 deletions(-)

diff --git a/drivers/media/pci/intel/ipu-bridge.c b/drivers/media/pci/intel/ipu-bridge.c
index 83e682e1a4b77d9d97b2988750732d0b7c9087b3..020aa52f590d66b6d333adc56ebfb9ab0561db51 100644
--- a/drivers/media/pci/intel/ipu-bridge.c
+++ b/drivers/media/pci/intel/ipu-bridge.c
@@ -253,36 +253,16 @@ static u32 ipu_bridge_parse_rotation(struct acpi_device *adev,

 static enum v4l2_fwnode_orientation ipu_bridge_parse_orientation(struct acpi_device *adev)
 {
-	enum v4l2_fwnode_orientation orientation;
-	struct acpi_pld_info *pld = NULL;
+	struct v4l2_fwnode_device_properties props;
+	int ret;

-	if (!acpi_get_physical_device_location(ACPI_PTR(adev->handle), &pld)) {
-		dev_warn(ADEV_DEV(adev), "_PLD call failed, using default orientation\n");
+	ret = v4l2_fwnode_device_parse(ADEV_DEV(adev), &props);
+	if (!ret || props.rotation == V4L2_FWNODE_PROPERTY_UNSET) {
+		dev_warn(ADEV_DEV(adev), "Using default orientation\n");
 		return V4L2_FWNODE_ORIENTATION_EXTERNAL;
 	}

-	switch (pld->panel) {
-	case ACPI_PLD_PANEL_FRONT:
-		orientation = V4L2_FWNODE_ORIENTATION_FRONT;
-		break;
-	case ACPI_PLD_PANEL_BACK:
-		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:
-		orientation = V4L2_FWNODE_ORIENTATION_EXTERNAL;
-		break;
-	default:
-		dev_warn(ADEV_DEV(adev), "Unknown _PLD panel val %d\n",
-			 pld->panel);
-		orientation = V4L2_FWNODE_ORIENTATION_EXTERNAL;
-		break;
-	}
-
-	ACPI_FREE(pld);
-	return orientation;
+	return props.orientation;
 }

 int ipu_bridge_parse_ssdb(struct acpi_device *adev, struct ipu_sensor *sensor)

-- 
2.50.0.rc0.642.g800a2b2222-goog