[Adding Mark] On 10/04/2016 at 18:23:01 +0300, Sergei Ianovich wrote : > On Sun, 2016-04-10 at 17:12 +0200, Alexandre Belloni wrote: > > Hi, > > > > On 10/04/2016 at 23:59:22 +0900, Akinobu Mita wrote : > > > > > > This series adds support access to DS1302 with GPIO lines. > > > > > > Recently rtc-ds1302 is rewritten using SPI 3wire mode. This adds > > > another platform driver using GPIO while supporting both modes. > > > > > > Thie series first fixes two problems I found while tesing, secondly > > > introduces the abstraction layer for the register access which > > > enables > > > to share the most code between spi and platform driver, and adds > > > the platform driver using GPIO. > > > > > Well, isn't spi-gpio fitting for that use case? I'd like to avoid > > open > > coding gpio bitbanging in the driver. > > No, unfortunately. I've investigated this possibility for my platform. > spi-gpio doesn't support LSB-first and 3-wire options. Adding support > there is a very big change. The best way to add GPIO support is to > create spi-gpio-3wire with LSB-first support. Mark, do you have nay opinion on that? -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
