[Intel-gfx] [PATCH 11/37] drm/i915: add definition of DDI buffer translations regs

Daniel Vetter daniel at ffwll.ch
Tue Mar 27 15:37:59 CEST 2012


On Wed, Mar 21, 2012 at 10:09:46PM -0300, Eugeni Dodonov wrote:
> Those registers are used to train DDI buffer translations for each link
> type.
> 
> Signed-off-by: Eugeni Dodonov <eugeni.dodonov at intel.com>

some quick private discussion releaved that the A-E in these defines are
also per-port. So I think we also need to rebase these on top of a port
enum with a DDI_BUF_TRANS(port) macros instead.
-Daniel

> ---
>  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 b732aa1..0af47b4 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -3940,4 +3940,11 @@
>  #define  DDI_PORT_WIDTH_X4				(3<<1)
>  #define  DDI_INIT_DISPLAY_DETECTED		(1<<0)
>  
> +/* DDI Buffer Translations */
> +#define DDI_BUF_TRANS_A				0x64E00
> +#define DDI_BUF_TRANS_B				0x64E60
> +#define DDI_BUF_TRANS_C				0x64EC0
> +#define DDI_BUF_TRANS_D				0x64F20
> +#define DDI_BUF_TRANS_E				0x64F80
> +
>  #endif /* _I915_REG_H_ */
> -- 
> 1.7.9.2
> 
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-- 
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48



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