media: atomisp: Remove input_port_ID_t

Change the single, unexpected user of CSI_PORT0_ID

	for (port = CSI_PORT0_ID; port < N_CSI_PORTS; port++)

to

	for (port = 0; port < N_CSI_PORTS; port++) {

matching all the other for-loops iterating over the ports in
the same file.

And remove the now fully unused input_port_ID_t enum type.
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/staging/media/atomisp/pci/sh_css_mipi.c

@@ -489,7 +489,7 @@ free_mipi_frames(struct ia_css_pipe *pipe)
 		}
 	} else { /* pipe ==NULL */
 		/* AM TEMP: free-ing all mipi buffers just like a legacy code. */
-		for (port = CSI_PORT0_ID; port < N_CSI_PORTS; port++) {
+		for (port = 0; port < N_CSI_PORTS; port++) {
 			unsigned int i;
 
 			for (i = 0; i < my_css.num_mipi_frames[port]; i++) {

drivers/staging/media/atomisp/pci/system_global.h

@@ -201,18 +201,6 @@ enum mipi_port_id {
 
 #define	N_RX_CHANNEL_ID		4
 
-/* Generic port enumeration with an internal port type ID */
-typedef enum {
-	CSI_PORT0_ID = 0,
-	CSI_PORT1_ID,
-	CSI_PORT2_ID,
-	TPG_PORT0_ID,
-	PRBS_PORT0_ID,
-	FIFO_PORT0_ID,
-	MEMORY_PORT0_ID,
-	N_INPUT_PORT_ID
-} input_port_ID_t;
-
 typedef enum {
 	CAPTURE_UNIT0_ID = 0,
 	CAPTURE_UNIT1_ID,