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5 Commits

Author SHA1 Message Date
Ilpo Järvinen
d4b0617286 serial: 8250_pericom: Use UART_LCR_DLAB 
Use UART_LCR_DLAB instead of literal.

Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20220613075736.12283-2-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2022-06-27 14:33:15 +02:00
Andy Shevchenko
5d5ead5e1c serial: 8250_pericom: Revert "Re-enable higher baud rates" 
UPF_MAGIC_MULTIPLIER is userspace available bit and can be changed
at any time. There is no sense to rely on it to be always present.

This reverts commit b4ccaf5aa2d795ee7f47a6eeb209f3de981e1929.

Note, that code was not reliably worked before, hence it implies
no functional change.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Fixes: b4ccaf5aa2d7 ("serial: 8250_pericom: Re-enable higher baud rates")
Link: https://lore.kernel.org/r/20220203150026.19087-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2022-02-04 15:32:05 +01:00
Andy Shevchenko
46dacba8fe serial: 8250_pericom: Use serial_dl_write() instead of open coded 
It's better to stick with standard API to write and read DL value
when the hardware is compatible with it. In case any quirks are
needed it may be easily added in one place rather than modifying
code here and there.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211122133512.8947-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-12-20 16:55:22 +01:00
Jay Dolan
b4ccaf5aa2 serial: 8250_pericom: Re-enable higher baud rates 
Add UPF_MAGIC_MULTIPLIER to the port flags since there is now
range checking in serial8250_get_baud_rate() in 8250_port.c.

Signed-off-by: Jay Dolan <jay.dolan@accesio.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211122133512.8947-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-12-20 16:55:22 +01:00
Andy Shevchenko
fcfd3c09f4 serial: 8250_pci: Split out Pericom driver 
Pericom along with Acces I/O support consumes a lot of LOCs in 8250_pci.c.
For the sake of easier maintenance, split it to a separate driver.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211122133512.8947-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-12-20 16:55:22 +01:00