Messages in this thread | | | Date | Tue, 30 Jul 2013 17:01:03 -0700 | From | Hanumant Singh <> | Subject | Re: [PATCH] pinctrl: msm: Add support for MSM TLMM pinmux |
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On 7/30/2013 2:22 PM, Stephen Warren wrote: > On 07/30/2013 03:10 PM, hanumant wrote: > ... >> We actually have the same TLMM pinmux used by several socs of a family. >> The number of pins on each soc may vary. >> Also a given soc gets used in a number of boards. >> The device tree for a given soc is split into the different boards that >> its in ie the boards inherit a common soc.dtsi but have separate dts. >> The boards for the same soc may use different pin groups for >> accomplishing a function, since we have multiple i2c, spi uart etc >> peripheral instances on a soc. A different instance of each of the above >> peripherals, can be used in different boards, utilizing different >> or subset of same pin groups. >> Thus I would need to have multiple C files for one soc, based on the >> boards that it goes into. > > The pinctrl driver should be exposing the raw capabilities of the HW. > All the board-specific configuration should be expressed in DT. So, the > driver shouldn't have to know anything about different boards at > compile-time. > I agree, so I wanted to keep the pin grouping information in DT, we already have a board based differentiation of dts files in DT, for the same soc.
Thanks Hanumant
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