diff options
| author | Ville Syrjälä | 2017-02-07 19:33:45 +0100 |
|---|---|---|
| committer | Ville Syrjälä | 2017-02-08 17:07:10 +0100 |
| commit | 49cd97a35d9041b53ecf39d447f6a0f8f2de75eb (patch) | |
| tree | b1b478979024ccd39ea20f1f0855096323203d0a /drivers/gpu/drm/i915/intel_drv.h | |
| parent | drm/i915: Pass computed vco to bxt_set_cdclk() (diff) | |
| download | kernel-qcow2-linux-49cd97a35d9041b53ecf39d447f6a0f8f2de75eb.tar.gz kernel-qcow2-linux-49cd97a35d9041b53ecf39d447f6a0f8f2de75eb.tar.xz kernel-qcow2-linux-49cd97a35d9041b53ecf39d447f6a0f8f2de75eb.zip | |
drm/i915: Start moving the cdclk stuff into a distinct state structure
Introduce intel_cdclk state which for now will track the cdclk
frequency, the vco frequency and the reference frequency (not sure we
want the last one, but I put it there anyway). We'll also make the
.get_cdclk() function fill out this state structure rather than
just returning the current cdclk frequency.
One immediate benefit is that calling .get_cdclk() will no longer
clobber state stored under dev_priv unless ex[plicitly told to do
so. Previously it clobbered the vco and reference clocks stored
there on some platforms.
We'll expand the use of this structure to actually precomputing the
state and whatnot later.
v2: Constify intel_cdclk_state_compare()
v3: Document intel_cdclk_state_compare()
v4: Deal with i945gm_get_cdclk()
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170207183345.19763-1-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 4bdb1f3cb0b5..ba0728ccff75 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -1251,10 +1251,13 @@ void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv); void intel_update_max_cdclk(struct drm_i915_private *dev_priv); void intel_update_cdclk(struct drm_i915_private *dev_priv); void intel_update_rawclk(struct drm_i915_private *dev_priv); +bool intel_cdclk_state_compare(const struct intel_cdclk_state *a, + const struct intel_cdclk_state *b); /* intel_display.c */ enum transcoder intel_crtc_pch_transcoder(struct intel_crtc *crtc); void intel_update_rawclk(struct drm_i915_private *dev_priv); +int vlv_get_hpll_vco(struct drm_i915_private *dev_priv); int vlv_get_cck_clock(struct drm_i915_private *dev_priv, const char *name, u32 reg, int ref_freq); int vlv_get_cck_clock_hpll(struct drm_i915_private *dev_priv, |