soc/intel: rename uart_max_index

The name `..._index` is confusing since the maximum index of an array is
not `ARRAY_SIZE(array)` but `ARRAY_SIZE(array) - 1`.

Rename `uart_max_index` to `uart_ctrlr_config_size` to make the name
match the variable´s value.

Change-Id: I7409c9dc040c3c6ad718abc96f268c187d50d79c
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49305
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Furquan Shaikh <furquan@google.com>

src/soc/intel/alderlake/uart.c

@@ -44,4 +44,4 @@ const struct uart_controller_config uart_ctrlr_config[] = {
 	}
 };
 
-const int uart_max_index = ARRAY_SIZE(uart_ctrlr_config);
+const int uart_ctrlr_config_size = ARRAY_SIZE(uart_ctrlr_config);

src/soc/intel/apollolake/uart.c

@@ -62,4 +62,4 @@ const struct uart_controller_config uart_ctrlr_config[] = {
 #endif
 };
 
-const int uart_max_index = ARRAY_SIZE(uart_ctrlr_config);
+const int uart_ctrlr_config_size = ARRAY_SIZE(uart_ctrlr_config);

src/soc/intel/cannonlake/uart.c

@@ -38,4 +38,4 @@ const struct uart_controller_config uart_ctrlr_config[] = {
 	}
 };
 
-const int uart_max_index = ARRAY_SIZE(uart_ctrlr_config);
+const int uart_ctrlr_config_size = ARRAY_SIZE(uart_ctrlr_config);

src/soc/intel/common/block/uart/uart.c

@@ -21,7 +21,7 @@
 #define UART_CONSOLE_INVALID_INDEX	0xFF
 
 extern const struct uart_controller_config uart_ctrlr_config[];
-extern const int uart_max_index;
+extern const int uart_ctrlr_config_size;
 
 static void uart_lpss_init(pci_devfn_t dev, uintptr_t baseaddr)
 {
@@ -49,7 +49,7 @@ static int uart_get_valid_index(void)
 {
 	int index;
 
-	for (index = 0; index < uart_max_index; index++) {
+	for (index = 0; index < uart_ctrlr_config_size; index++) {
 		if (uart_ctrlr_config[index].console_index ==
 				CONFIG_UART_FOR_CONSOLE)
 			return index;

src/soc/intel/elkhartlake/uart.c

@@ -38,4 +38,4 @@ const struct uart_controller_config uart_ctrlr_config[] = {
 	}
 };
 
-const int uart_max_index = ARRAY_SIZE(uart_ctrlr_config);
+const int uart_ctrlr_config_size = ARRAY_SIZE(uart_ctrlr_config);

src/soc/intel/icelake/uart.c

@@ -38,4 +38,4 @@ const struct uart_controller_config uart_ctrlr_config[] = {
 	}
 };
 
-const int uart_max_index = ARRAY_SIZE(uart_ctrlr_config);
+const int uart_ctrlr_config_size = ARRAY_SIZE(uart_ctrlr_config);

src/soc/intel/jasperlake/uart.c

@@ -38,4 +38,4 @@ const struct uart_controller_config uart_ctrlr_config[] = {
 	}
 };
 
-const int uart_max_index = ARRAY_SIZE(uart_ctrlr_config);
+const int uart_ctrlr_config_size = ARRAY_SIZE(uart_ctrlr_config);

src/soc/intel/skylake/uart.c

@@ -37,4 +37,4 @@ const struct uart_controller_config uart_ctrlr_config[] = {
 	}
 };
 
-const int uart_max_index = ARRAY_SIZE(uart_ctrlr_config);
+const int uart_ctrlr_config_size = ARRAY_SIZE(uart_ctrlr_config);

src/soc/intel/tigerlake/uart.c

@@ -44,4 +44,4 @@ const struct uart_controller_config uart_ctrlr_config[] = {
 	}
 };
 
-const int uart_max_index = ARRAY_SIZE(uart_ctrlr_config);
+const int uart_ctrlr_config_size = ARRAY_SIZE(uart_ctrlr_config);