From c6b1b34b509032c7e7cef9efc63cab55c2ad309e Mon Sep 17 00:00:00 2001 From: Miguel Vadillo Date: Wed, 27 May 2026 10:05:30 -0700 Subject: [PATCH] media: pci: intel: Add CVS support for IPU bridge driver CVS is located between IPU device and sensors and is available in existing commercial platforms from multiple OEMs. The connection information between them in firmware is not enough to build a V4L2 connection graph. This patch parses the connection properties from the SSDB buffer in DSDT and builds the connection using software nodes. From the IPU bridge point of view, CVS is just like IVSC. Signed-off-by: Miguel Vadillo Tested-by: Mehdi Djait # Dell XPS 13 9350 + IPU7 Reviewed-by: Mehdi Djait Signed-off-by: Sakari Ailus --- drivers/media/pci/intel/ipu-bridge.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/media/pci/intel/ipu-bridge.c b/drivers/media/pci/intel/ipu-bridge.c index fc6608e33de4..88581a4c081d 100644 --- a/drivers/media/pci/intel/ipu-bridge.c +++ b/drivers/media/pci/intel/ipu-bridge.c @@ -168,6 +168,9 @@ static const struct acpi_device_id ivsc_acpi_ids[] = { { "INTC1095" }, { "INTC100A" }, { "INTC10CF" }, + { "INTC10DE" }, /* LNL */ + { "INTC10E0" }, /* ARL */ + { "INTC10E1" }, /* PTL */ }; static struct acpi_device *ipu_bridge_get_ivsc_acpi_dev(struct acpi_device *adev) @@ -221,7 +224,13 @@ static struct device *ipu_bridge_get_ivsc_csi_dev(struct acpi_device *adev) return csi_dev; } - return NULL; + /* Try to locate CVS device on the I2C bus */ + csi_dev = bus_find_device_by_acpi_dev(&i2c_bus_type, adev); + if (csi_dev) + return csi_dev; + + /* Fallback to platform bus for CVS device */ + return bus_find_device_by_acpi_dev(&platform_bus_type, adev); } static int ipu_bridge_check_ivsc_dev(struct ipu_sensor *sensor, @@ -235,7 +244,7 @@ static int ipu_bridge_check_ivsc_dev(struct ipu_sensor *sensor, csi_dev = ipu_bridge_get_ivsc_csi_dev(adev); if (!csi_dev) { acpi_dev_put(adev); - dev_err(ADEV_DEV(adev), "Failed to find MEI CSI dev\n"); + dev_err(ADEV_DEV(adev), "Failed to find MEI or CVS CSI dev\n"); return -ENODEV; }