diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dpll_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c index fc8fda77483a..6723c3de5a80 100644 --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c @@ -28,6 +28,7 @@ #include "intel_dpll_mgr.h" #include "intel_pch_refclk.h" #include "intel_tc.h" +#include "intel_tc_phy_regs.h" /** * DOC: Display PLLs @@ -49,6 +50,41 @@ * commit phase. */ +/* platform specific hooks for managing DPLLs */ +struct intel_shared_dpll_funcs { + /* + * Hook for enabling the pll, called from intel_enable_shared_dpll() if + * the pll is not already enabled. + */ + void (*enable)(struct drm_i915_private *i915, + struct intel_shared_dpll *pll); + + /* + * Hook for disabling the pll, called from intel_disable_shared_dpll() + * only when it is safe to disable the pll, i.e., there are no more + * tracked users for it. + */ + void (*disable)(struct drm_i915_private *i915, + struct intel_shared_dpll *pll); + + /* + * Hook for reading the values currently programmed to the DPLL + * registers. This is used for initial hw state readout and state + * verification after a mode set. + */ + bool (*get_hw_state)(struct drm_i915_private *i915, + struct intel_shared_dpll *pll, + struct intel_dpll_hw_state *hw_state); + + /* + * Hook for calculating the pll's output frequency based on its passed + * in state. + */ + int (*get_freq)(struct drm_i915_private *i915, + const struct intel_shared_dpll *pll, + const struct intel_dpll_hw_state *pll_state); +}; + struct intel_dpll_mgr { const struct dpll_info *dpll_info; |