media: v4l: cci: Add driver-private bit definitions

Provide a few bits for drivers to store private information on register
definitions.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

include/media/v4l2-cci.h

@@ -33,6 +33,11 @@ struct cci_reg_sequence {
 #define CCI_REG_ADDR_MASK		GENMASK(15, 0)
 #define CCI_REG_WIDTH_SHIFT		16
 #define CCI_REG_WIDTH_MASK		GENMASK(19, 16)
+/*
+ * Private CCI register flags, for the use of drivers.
+ */
+#define CCI_REG_PRIVATE_SHIFT		28U
+#define CCI_REG_PRIVATE_MASK		GENMASK(31U, CCI_REG_PRIVATE_SHIFT)
 
 #define CCI_REG8(x)			((1 << CCI_REG_WIDTH_SHIFT) | (x))
 #define CCI_REG16(x)			((2 << CCI_REG_WIDTH_SHIFT) | (x))