drivers: can: increase default setting for software-limited RX filters

Increase the default number of software-limited CAN RX filters across the
drivers. Some of these were chosen quite conservative, requiring custom
configuration for even simple in-tree samples.

Users can reduce the number of available RX filters to reduce RAM footprint
as needed.

Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>

Author: henrikbrixandersen

drivers/can/Kconfig.max32

@@ -13,7 +13,7 @@ if CAN_MAX32
 
 config CAN_MAX32_MAX_FILTER
 	int "Maximum number of concurrent active filters"
-	default 5
+	default 16
 	range 1 32
 	help
 	  Maximum number of filters supported by the can_add_rx_callback() API call.

drivers/can/Kconfig.mcp2515

@@ -29,7 +29,7 @@ config CAN_MCP2515_INT_THREAD_PRIO
 
 config CAN_MCP2515_MAX_FILTER
 	int "Maximum number of concurrent active filters"
-	default 5
+	default 16
 	range 1 32
 	help
 	  Defines the array size of the callback/msgq pointers.

drivers/can/Kconfig.mcp251xfd

@@ -53,7 +53,7 @@ config CAN_MCP251XFD_READ_CRC_RETRIES
 
 config CAN_MCP251XFD_MAX_FILTER
 	int "Maximum number of concurrent active filters"
-	default 5
+	default 16
 	range 1 32
 	help
 	  Maximum number of filters supported by the can_add_rx_callback() API call.

drivers/can/Kconfig.mcux

@@ -41,7 +41,7 @@ config CAN_MCUX_FLEXCAN_MAX_MB
 
 config CAN_MCUX_FLEXCAN_MAX_FILTER
 	int "Maximum number of concurrent active RX filters"
-	default 5
+	default 13
 	range 1 15 if SOC_SERIES_KINETIS_KE1XF || SOC_SERIES_KINETIS_K6X
 	range 1 13 if (SOC_SERIES_IMXRT10XX || SOC_SERIES_IMXRT11XX) && CAN_MCUX_FLEXCAN_FD
 	range 1 63 if SOC_SERIES_IMXRT10XX || SOC_SERIES_IMXRT11XX

drivers/can/Kconfig.native_linux

@@ -22,7 +22,7 @@ config CAN_NATIVE_LINUX_RX_THREAD_PRIORITY
 
 config CAN_NATIVE_LINUX_MAX_FILTER
 	int "Maximum number of concurrent active filters"
-	default 5
+	default 16
 	range 1 32
 	help
 	  Defines the array size of the callback/msgq pointers.

drivers/can/Kconfig.rcar

@@ -14,7 +14,7 @@ config CAN_RCAR
 config CAN_RCAR_MAX_FILTER
 	int "Maximum number of concurrent active filters"
 	depends on CAN_RCAR
-	default 5
+	default 16
 	range 1 32
 	help
 	  Defines the array size of the callback/msgq pointers.

drivers/can/Kconfig.sja1000

@@ -11,7 +11,7 @@ config CAN_SJA1000
 config CAN_SJA1000_MAX_FILTER
 	int "Maximum number of concurrent active RX filters"
 	depends on CAN_SJA1000
-	default 5
+	default 16
 	range 1 32
 	help
 	  As the NXP SJA1000 only supports one full-width RX filter, filtering of received CAN

drivers/can/Kconfig.xmc4xxx

@@ -37,7 +37,7 @@ config CAN_XMC4XXX_INTERNAL_BUS_MODE
 
 config CAN_XMC4XXX_MAX_FILTER
 	int "Maximum number of concurrent active filters"
-	default 4
+	default 16
 	range 1 32
 	help
 	  Maximum number of filters supported by the can_add_rx_callback() API call.