On Fri, Oct 06, 2017 at 06:33:31AM +0000, Icenowy Zheng wrote: > In the CCU of the Allwinner R40 SoC, there's a GMAC configuration register, > which is intended to be accessed by the dwmac-sun8i driver. On SoCs already > supported by the driver the register is placed in the syscon rather than > the CCU. > > As CCU is a critical part of the SoC, so write to it should be strictly > limited. A regmap with restricted write permission is created by the R40 > CCU driver, and can be get with dev_get_regmap. In order to tie the regmap > to the CCU device, the R40 CCU is now a platform driver, so a platform > device is created for it (and then tied with the regmap). > > The first patch does the conversion of the driver to a platform driver, > and the second patch adds the regmap.
I'd like to see first what you want to do with it. Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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