diff options
| author | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2017-07-06 13:52:01 -0700 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2017-07-07 10:01:26 -0700 |
| commit | a9701a897067db118f1a0fcf59ce8391e3612687 (patch) | |
| tree | 0d767e2de9a6bc89cc5390895fdb97b9317790f7 /drivers/gpu/drm/i915/i915_reg.h | |
| parent | 35ceabf3cdb557b23bbc09f0b6f7bb2b545185b1 (diff) | |
| download | lwn-a9701a897067db118f1a0fcf59ce8391e3612687.tar.gz lwn-a9701a897067db118f1a0fcf59ce8391e3612687.zip | |
drm/i915/cnl: Get DDI clock based on PLLs.
PLLs are the source clocks for the DDIs so in order
to determine the ddi clock we need to check the PLL
configuration.
v2: Mika pointed out that 24 was hardcoded while it
should consider ref clock that can be either 24KHz
or 19.2KHz on CNL.
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1499374321-31152-1-git-send-email-rodrigo.vivi@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 21ab12f4e72a..c712d01f92ab 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -8343,6 +8343,7 @@ enum { #define DPLL_CFGCR0_LINK_RATE_3240 (6 << 25) #define DPLL_CFGCR0_LINK_RATE_4050 (7 << 25) #define DPLL_CFGCR0_DCO_FRACTION_MASK (0x7fff << 10) +#define DPLL_CFGCR0_DCO_FRAC_SHIFT (10) #define DPLL_CFGCR0_DCO_FRACTION(x) ((x) << 10) #define DPLL_CFGCR0_DCO_INTEGER_MASK (0x3ff) #define CNL_DPLL_CFGCR0(pll) _MMIO_PLL(pll, _CNL_DPLL0_CFGCR0, _CNL_DPLL1_CFGCR0) @@ -8350,6 +8351,7 @@ enum { #define _CNL_DPLL0_CFGCR1 0x6C004 #define _CNL_DPLL1_CFGCR1 0x6C084 #define DPLL_CFGCR1_QDIV_RATIO_MASK (0xff << 10) +#define DPLL_CFGCR1_QDIV_RATIO_SHIFT (10) #define DPLL_CFGCR1_QDIV_RATIO(x) ((x) << 10) #define DPLL_CFGCR1_QDIV_MODE(x) ((x) << 9) #define DPLL_CFGCR1_KDIV_MASK (7 << 6) |