From: Sam Povilus Date: Thu, 16 Mar 2017 02:43:24 +0000 (-0600) Subject: uartlite: Adding a kernel parameter for the number of uartlites X-Git-Tag: v4.12-rc1~66^2~50 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=b44b96a060f3fd06456214cac7dfdd3ddf0caf2b;p=linux.git uartlite: Adding a kernel parameter for the number of uartlites The number of uartlites should be set by a kernel parameter instead of using a #define. This allows the user to set the number of uartlites using only kconfig and not modifying kernel source. The uartlite is used by FPGAs that support a basically unlimited number of uarts so limiting it at 16 dosn't make sense as users might need more than that. Signed-off-by: Sam Povilus Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index d8495b9fd0ce..896f5eb78da0 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -630,6 +630,15 @@ config SERIAL_UARTLITE_CONSOLE console (the system console is the device which receives all kernel messages and warnings and which allows logins in single user mode). +config SERIAL_UARTLITE_NR_UARTS + int "Maximum number of uartlite serial ports" + depends on SERIAL_UARTLITE + range 1 256 + default 1 + help + Set this to the number of uartlites in your system, or the number + you think you might implement. + config SERIAL_SUNCORE bool depends on SPARC diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c index 817bb0d3f326..c9b8d702dadc 100644 --- a/drivers/tty/serial/uartlite.c +++ b/drivers/tty/serial/uartlite.c @@ -28,7 +28,7 @@ #define ULITE_NAME "ttyUL" #define ULITE_MAJOR 204 #define ULITE_MINOR 187 -#define ULITE_NR_UARTS 16 +#define ULITE_NR_UARTS CONFIG_SERIAL_UARTLITE_NR_UARTS /* --------------------------------------------------------------------- * Register definitions