[PATCH 3/4] media: ipu-bridge: Add ST VD55G0

[Sergey Lebedev]

The infrared camera of the Surface Pro 11 with Intel is an ST VD55G0,
enumerated by ACPI as SMO55F0 and wired to the IPU7 over one CSI-2 data
lane.

The vd55g0 driver takes only a link frequency whose MIPI rate, twice it,
is an integer multiple of the input clock. 396 MHz gives 792 Mbps, 33
times the 24 MHz the sensor's SSDB lists on the Surface Pro 8, 9, 10 and
11, and within the sensor's 750 to 1200 Mbps. Peter Marshall's earlier
patch for the Surface Pro 9 used 380 MHz, 760 Mbps, which is not a
multiple of 24 MHz, so the driver would refuse it:
https://lore.kernel.org/all/20260918221705.323510-4-pm@xxxxxxxxxxxxxxxx/

Assisted-by: Claude:claude-opus-5-5 sparse
Signed-off-by: Sergey Lebedev <lsa.uz@xxxxx>
---
 drivers/media/pci/intel/ipu-bridge.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/pci/intel/ipu-bridge.c b/drivers/media/pci/intel/ipu-bridge.c
index 3739c4a2a8c..cb1d1582fa1 100644
--- a/drivers/media/pci/intel/ipu-bridge.c
+++ b/drivers/media/pci/intel/ipu-bridge.c
@@ -120,6 +120,8 @@ static const struct ipu_sensor_config ipu_supported_sensors[] = {
 	IPU_SENSOR_CONFIG("OVTI5693", 1, 419200000),
 	/* Omnivision OV8856 */
 	IPU_SENSOR_CONFIG("OVTI8856", 3, 180000000, 360000000, 720000000),
+	/* STMicroelectronics VD55G0 */
+	IPU_SENSOR_CONFIG("SMO55F0", 1, 396000000),
 	/* Sony IMX471 */
 	IPU_SENSOR_CONFIG("SONY471A", 1, 200000000),
 	/* Sony IMX471 (found on Lenovo X1 Carbon G14) */
-- 
2.54.0