---------------------------------------- > Date: Tue, 28 Apr 2015 12:12:49 +0200 > From: moorray3@xxxxx > To: indrakanti_ram@xxxxxxxxxxx > CC: linux-serial@xxxxxxxxxxxxxxx > Subject: Re: SC16IS762 SPI interface Driver > > On Tue, 28 Apr 2015 14:42:42 +0530, ram kiran wrote: >> Hi, > > Hi Ram, thanks for reposting :) > >> SC16IS762, has two interfaces i2c/spi, and I see that the current >> driver preset in main line kernel 4.0, supports only i2c. >> Is it available over SPI interface ? > > Current mainline driver is not available on SPI, but it uses generic > regmap interface to access the registers so it shouldn't be hard to > make it work with SPI (you would just have to write the .probe() > routines). > yes, i did do have a KCONFIG in the same file, to split either for existing i2c and SPI. >> I have a tested SPI interface based SC16IS762 chip driver. >> Would like to know if I can contribute the code to main line kernel. > > I think you mean the sc16is7x2.c driver by Manuel Stahl and others. > I'm pretty sure we don't want to have two drivers for the same device > in mainline, especially that the current one uses that generic register > API. > > However, both of those drivers have issues with locking (uart uses > spinlocks but I2C/SPI transfers are asynchronous) it would be nice > to somehow merge them together to get the best of both. would you mean we can have the I2c and SPI co-exist, to resolve on this ? > -- > 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 -- 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
