[PATCH v3 02/16] mfd: da8xx-cfgchip: New header file for CFGCHIP registers.
From: Sergei Shtylyov <hidden>
Date: 2016-03-28 16:42:23
Also in:
linux-devicetree, lkml
From: Sergei Shtylyov <hidden>
Date: 2016-03-28 16:42:23
Also in:
linux-devicetree, lkml
Hello. On 03/28/2016 06:02 PM, David Lechner wrote:
quoted
quoted
+/* register offsets */ +#define CFGCHIP_REG(n) (n * 4) +#define CFGCHIP0_REG CFGCHIP_REG(0) +#define CFGCHIP1_REG CFGCHIP_REG(1) +#define CFGCHIP2_REG CFGCHIP_REG(2) +#define CFGCHIP3_REG CFGCHIP_REG(3) +#define CFGCHIP4_REG CFGCHIP_REG(4)Why not just use CFGCHIP_REG(n) directly?I considered that, but I went this way because A) the TRM uses, for example, "CFGCHIP2", so I wanted to keep "CFGCHIP" and "2" together
I'd just drop the _REG suffix.
and B) this tells you how many CFGCHIP registers there are, i.e. there is no CFGCHIP5_REG.
You can tell that in a comment. Having a parametrized macro and using it
to just #define more macros doesn't appeal to me at all...
MBR, Sergei