On Thu, 12 May 2011 22:17:16 +0100, Chris Wilson <[email protected]> wrote:
> Keith complained that GMBUSx + reg_offset was ugly. An alternative
> naming scheme which is more consistent with the reset of the code base
> is to store the address of the GMBUS0 and then reference each of the
> GMBUSx registers as an offset from GMBUS0.
This looks completely wrong -- GMBUS1 is GMBUS0 + 4, not GMBUS0 + 1.
How about a simple function that computes the GMBUS register address
based on the device and a number? like:
static int intel_gmbus_reg(struct drm_device *dev, int reg) {
int base = HAS_PCH_SPLIT(dev) ? PCH_GMBUS0 : GMBUS0;
return base + reg * 4;
}
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