[Intel-gfx] [PATCH 22/41] drm/i915: add SFUSE_STRAP registers for digital port detection

[Daniel Vetter]

On Thu, Mar 29, 2012 at 12:32:38PM -0300, Eugeni Dodonov wrote:
> DDIA is detected via the DDI_BUF_CTL registers bit 0, but for DDIB, DDIC
> and DDID we need to consult SFUSE_STRAP values.
> 
> Signed-off-by: Eugeni Dodonov <eugeni.dodonov at intel.com>
> ---
>  drivers/gpu/drm/i915/i915_reg.h |    7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index d9df228..f300f5f 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -4037,4 +4037,11 @@
>  #define   PIPE_WM_LINETIME_TIME(x)			((x))
>  #define   PIPE_WM_LINETIME_IPS_LINETIME_MASK	(0x1ff<<16)
>  #define   PIPE_WM_LINETIME_IPS_LINETIME(x)		((x)<<16)
> +
> +/* SFUSE_STRAP */
> +#define SFUSE_STRAP				0xc2014
> +#define  SFUSE_STRAP_DDIB_DETECTED	(1<<2)
> +#define  SFUSE_STRAP_DDIC_DETECTED	(1<<1)
> +#define  SFUSE_STRAP_DDID_DETECTED	(1<<0)

I've noticed that we have another sfuse here indicating whether the vga
port is present. Do we not need this?
-Daniel
> +
>  #endif /* _I915_REG_H_ */
> -- 
> 1.7.9.5
> 
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-- 
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48