Hello.
Понедельник, 17 февраля 2014, 17:57 +01:00 от Richard Genoud <richard.genoud@xxxxxxxxx>:
> The USART controller on sam9x5 chips (and also all AT91/SAMA5 chips
> but at91rm9200) are not capable of handling DTR/DSR/DCD/RI signal.
> Moreover, even if the controller can handle CTS/RTS, the dedicated
> CTS/RTS pins are already muxed for other peripherals (LCDC/EMAC/MMC).
>
> So this patchset adds the possibility to control those lines via GPIO,
> as it is done for RTS in the patch "switch atmel serial to use gpiolib"
>
> As it was suggested by Alexander Shiyan, I made that available for
> every board.
>
> Patch 1 implements the generic helpers to control modem lines via GPIO
> Patches 2 and 3 are just a little tidy up of atmel_serial.c.
> Patch 4 implements modem control lines in atmel_serial atmel_serial.
> Patches 5 and 6 implement the get_direction() gpio call for at91, as
> it is needed by gpiod_get_direction().
> Patch 7 implement the interrupts of CTS/DSR/DCD/RI.
I still recommend split this series. The first patch must be a separate,
2 and 3 - independent to this series, 5 and 6 - to the appropriate mailing lists,
and finally as soon as all of the previous will be applied - you can send 7.
Thanks.
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