[PATCH v10 09/15] media: intel: ipu-bridge: select OV2740 frequency by IPU ID

[Maurizio Casciano via B4 Relay]

From: Maurizio Casciano <mauriziocasciano7@xxxxxxxxx>

The OV2740 connected to the Cherry Trail AtomISP uses a 288 MHz link,
while the generic OVTI2740 configuration uses 360 MHz.

Use the bridge's existing PCI-device matching mechanism to add a
Cherry Trail-specific OVTI2740 entry before the generic fallback. This
keeps the platform distinction in the bridge and avoids adding a second
per-sensor link-frequency override path.

Suggested-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Signed-off-by: Maurizio Casciano <mauriziocasciano7@xxxxxxxxx>
Assisted-by: LLM
---
 drivers/media/pci/intel/ipu-bridge.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/media/pci/intel/ipu-bridge.c b/drivers/media/pci/intel/ipu-bridge.c
index 62852fe1a406..1a133194cbc0 100644
--- a/drivers/media/pci/intel/ipu-bridge.c
+++ b/drivers/media/pci/intel/ipu-bridge.c
@@ -21,6 +21,8 @@
 
 #define ADEV_DEV(adev) ACPI_PTR(&((adev)->dev))
 
+#define PCI_DEVICE_ID_INTEL_ATOMISP_CHT	0x22b8
+
 /*
  * 92335fcf-3203-4472-af93-7b4453ac29da
  *
@@ -58,6 +60,11 @@ static const u16 ipu6_ov5693_ncont_clk[] = {
 	0
 };
 
+static const u16 atomisp_cht_pci_ids[] = {
+	PCI_DEVICE_ID_INTEL_ATOMISP_CHT,
+	0
+};
+
 static const struct ipu_sensor_config ipu_supported_sensors[] = {
 	/* Himax HM1092 */
 	IPU_SENSOR_CONFIG("HIMX1092", 2, 180000000, 180480000),
@@ -112,6 +119,8 @@ static const struct ipu_sensor_config ipu_supported_sensors[] = {
 	/* Omnivision OV2680 */
 	IPU_SENSOR_CONFIG("OVTI2680", 1, 331200000),
 	/* Omnivision OV2740 */
+	IPU_SENSOR_CONFIG_MATCH_FL("OVTI2740", atomisp_cht_pci_ids, 0,
+				   1, 288000000),
 	IPU_SENSOR_CONFIG("OVTI2740", 1, 360000000),
 	/* Omnivision OV5675 */
 	IPU_SENSOR_CONFIG("OVTI5675", 1, 450000000),

-- 
2.53.0