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drm/i915: add S PLL control

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This PLL control can drive DDI ports at desired frequencies for
DisplayPort and FDI connections.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Eugeni Dodonov 2012-03-29 12:32:32 -03:00 committed by Daniel Vetter
parent 52f025efa9
commit e93ea06aa0
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/i915/i915_reg.h
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@ -4134,4 +4134,12 @@
#define PIXCLK_GATE_UNGATE 1<<0
#define PIXCLK_GATE_GATE 0<<0
/* SPLL */
#define SPLL_CTL 0x46020
#define SPLL_PLL_ENABLE (1<<31)
#define SPLL_PLL_SCC (1<<28)
#define SPLL_PLL_NON_SCC (2<<28)
#define SPLL_PLL_FREQ_810MHz (0<<26)
#define SPLL_PLL_FREQ_1350MHz (1<<26)
#endif /* _I915_REG_H_ */