media: atomisp: remove dublicate code

Removed dublicate returns and breaks inside switch
statements and useless return after switch.

Link: https://lore.kernel.org/linux-media/3944cd10bb5a64157781b1e0ef044c62c05f07c7.1620479607.git.paskripkin@gmail.comSigned-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c

@@ -903,11 +903,8 @@ static input_system_err_t input_system_configure_channel(
 			error = input_system_configure_channel_sensor(channel);
 			break;
 		case INPUT_SYSTEM_SOURCE_TPG:
-			return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
 		case INPUT_SYSTEM_SOURCE_PRBS:
-			return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
 		case INPUT_SYSTEM_SOURCE_FIFO:
-			return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
 		default:
 			return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
 		}
@@ -1301,13 +1298,7 @@ static input_system_err_t configuration_to_registers(void)
 		break;
 
 	case INPUT_SYSTEM_SOURCE_TPG:
-
-		break;
-
 	case INPUT_SYSTEM_SOURCE_PRBS:
-
-		break;
-
 	case INPUT_SYSTEM_SOURCE_FIFO:
 		break;
 
@@ -1688,15 +1679,11 @@ static input_system_err_t input_system_configure_channel_sensor(
 
 		break;
 	case INPUT_SYSTEM_FIFO_CAPTURE_WITH_COUNTING:
-		return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
 	case INPUT_SYSTEM_XMEM_CAPTURE:
-		return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
 	case INPUT_SYSTEM_XMEM_ACQUIRE:
-		return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
 	default:
 		return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
 	}
-	return INPUT_SYSTEM_ERR_NO_ERROR;
 }
 
 // Test flags and set structure.