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path: root/arch/arm/cpu/armv7/sunxi/p2wi.c
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* sun6i: s/SUNXI_*P2WI*/SUN6I_*P2WI*/Hans de Goede2015-01-14-7/+7
| | | | | | | | The p2wi interface is only available on sun6i, adjust the gpio pinmux and base address defines for it to reflect this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sun6i: Add new p2wi controller driverOliver Schinagl2014-11-13-0/+117
The A31 uses a new push-pull two wire interface, which features higher transfer speeds (upto 6 MHz) in theory. While the hardware can burst 8 bytes each time, this driver will only see very little use and thus is limited to single byte transmission only. Signed-off-by: Oliver Schinagl <oliver@schinagl.nl> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>