| Date | Thu, 6 Jun 2013 11:29:48 +0200 | From | Thomas Petazzoni <> | Subject | Re: getting allwinner SoC support upstream (was Re: Uploading linux (3.9.4-1)) |
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Hello,
On Wed, 5 Jun 2013 16:48:27 -0400, jonsmirl@gmail.com wrote:
> > fex covers *eeeeeevvveeerryyyythiiiing* - right from flipping the > > multiplexing for all 3 SD/MMC cards so that you can pretend that SD0 > > is SD2 and you can specify *different* GPIOs for each to say which > > is > > You can do all of this in device tree too. If the exact syntax doesn't > exist you can use 'allwinner,' prefixes on the node names. > Also check out pinctrl so that it doesn't get reinvented.
Are people looking at the mainline source code?
There is already a pinctrl driver for sunxi platforms (i.e Allwinner SoCs), it's at drivers/pinctrl/pinctrl-sunxi.c, and it's DT-based and allows to describe the pin muxing in the Device Tree.
Cc'ing Maxime Ripard, who is the mach-sunxi maintainer in the mainline kernel.
Best regards,
Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com
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