In order to support Qualcomm ISP hardware architectures that diverge
from older architectures, the VFE subdevice driver needs to be refactored
to better abstract the different ISP architectures.

Gen1 represents the CAMSS ISP architecture. The ISP architecture developed
after CAMSS, Titan, will be referred to as Gen2.

Signed-off-by: Robert Foss <redacted>
---
[snip]

diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-8.c b/drivers/media/platform/qcom/camss/camss-vfe-4-8.c
new file mode 100644
index 000000000000..153e0e20664e
--- /dev/null
+++ b/drivers/media/platform/qcom/camss/camss-vfe-4-8.c

[snip]
+/*
+ * vfe_isr - VFE module interrupt handler
+ * @irq: Interrupt line
+ * @dev: VFE device
+ *
+ * Return IRQ_HANDLED on success
+ */
+static irqreturn_t vfe_isr(int irq, void *dev)
+{
+       struct vfe_device *vfe = dev;
+       u32 value0, value1;
+       int i, j;
+
+       vfe->ops->isr_read(vfe, &value0, &value1);
+
+       trace_printk("VFE: status0 = 0x%08x, status1 = 0x%08x\n",
+                    value0, value1);