On Tue, 22 Jul 2014, Felipe Balbi wrote: > On Tue, Jul 22, 2014 at 04:45:03PM +0100, Lee Jones wrote: > > > > > > +static void st_dwc3_init(struct st_dwc3 *dwc3_data) > > > > > > +{ > > > > > > + u32 reg = st_dwc3_readl(dwc3_data->glue_base, USB2_CLKRST_CTRL); > > > > > > + > > > > > > + reg |= aux_clk_en(1) | ext_cfg_reset_n(1) | xhci_revision(1); > > > > > > + reg &= ~sw_pipew_reset_n(1); > > > > > > > > > > 1? Better to add defines for these magic numbers. What is 1 anyway? > > > > > > > > They are just bit setting macros, I've converted them over to use BIT macro now, > > > > so it no longer takes a parameter. > > > > > > the macros are better, but make them upper case as everybody else. > > > > When you say that the macros are better, what do you mean? > > > > Defines do the job in a manner which is a great deal cleaner: > > > > #define AUX_CLK_EN BIT(0) > > #define SW_PIPEW_RESET_N BIT(4) > > #define EXT_CFG_RESET_N BIT(8) > > #define XHCI_REVISION BIT(12) > > > > reg = AUX_CLK_EN | SW_PIPEW_RESET_N | XHCI_REVISION; > > reg &= ~SW_PIPEW_RESET_N > > this is what I meant ;-) I see what I wrote can be very ambiguous :-p Okay great, thanks for clarifying. :) -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html