This patch introduces a helper serial8250_get_ps() to calculate prescaler values (*) which are used to get a port UART clock regarding to desired baud rate. The BayTrail and Intel MID are converted to use this helper instead of custom case-switch tables. There may be other users which can be converted as well. The Tangier support will be resent later regarding to this patch series. The changes were tested on Intel Medfield, Tangier, and Braswell. (*) There is a gist in Python which represents the algorithm. https://gist.github.com/8b2a73aeca2874f4cc89.git Andy Shevchenko (3): serial: 8250: introduce helper to configure prescaler serial: 8250_pci: re-use serial8250_get_ps() for BYT serial: 8250_pci: re-use serial8250_get_ps() for Intel MID drivers/tty/serial/8250/8250.h | 4 ++ drivers/tty/serial/8250/8250_core.c | 54 ++++++++++++++++++++ drivers/tty/serial/8250/8250_pci.c | 98 +++++++++---------------------------- 3 files changed, 82 insertions(+), 74 deletions(-) -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
