On Wed, Oct 12, 2016 at 03:30:07PM +0800, Chen-Yu Tsai wrote: > Hi, > > On Wed, Oct 12, 2016 at 12:20 PM, Icenowy Zheng <icenowy@xxxxxxxx> wrote: > > The PWM controller in A31 is different with other Allwinner SoCs, with a > > control register per channel (in other SoCs the control register is > > shared), and each channel are allocated 16 bytes of address (but only 8 > > bytes are used.). The register map in one channel is just like a > > single-channel A10 PWM controller, however, A31 have a different > > prescaler table than other SoCs. > > > > In order to use the driver for all 4 channels, device nodes should be > > created per channel. > > I think Maxime wants you to support the different register offsets > in this driver, and have all 4 channels in the same device (node). Indeed. Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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