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drm/i915: add vlv_clock_get_gpll()

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Add a vlv_clock_get_gpll() helper to hide the details from the callers.

Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Michał Grzelak <michal.grzelak@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://lore.kernel.org/r/2589396fa14388d7709d2b01f1d32f9f38dab11a.1757688216.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Jani Nikula
2025-09-12 17:48:42 +03:00
parent 7d11281178
commit 01c46fcef5
3 changed files with 10 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/i915/display/intel_display.c
View File

@@ -190,6 +190,14 @@ int vlv_get_cck_clock_hpll(struct drm_device *drm,
return hpll;
}
int vlv_clock_get_gpll(struct drm_device *drm)
{
struct drm_i915_private *i915 = to_i915(drm);
return vlv_get_cck_clock(drm, "GPLL ref", CCK_GPLL_CLOCK_CONTROL,
i915->czclk_freq);
}
void intel_update_czclk(struct intel_display *display)
{
struct drm_i915_private *dev_priv = to_i915(display->drm);

1
drivers/gpu/drm/i915/display/intel_display.h
View File

@@ -440,6 +440,7 @@ int vlv_get_cck_clock(struct drm_device *drm,
const char *name, u32 reg, int ref_freq);
int vlv_get_cck_clock_hpll(struct drm_device *drm,
const char *name, u32 reg);
int vlv_clock_get_gpll(struct drm_device *drm);
bool intel_has_pending_fb_unpin(struct intel_display *display);
void intel_encoder_destroy(struct drm_encoder *encoder);
struct drm_display_mode *

5
drivers/gpu/drm/i915/gt/intel_rps.c
View File

@@ -1690,10 +1690,7 @@ static void vlv_init_gpll_ref_freq(struct intel_rps *rps)
{
struct drm_i915_private *i915 = rps_to_i915(rps);
rps->gpll_ref_freq =
vlv_get_cck_clock(&i915->drm, "GPLL ref",
CCK_GPLL_CLOCK_CONTROL,
i915->czclk_freq);
rps->gpll_ref_freq = vlv_clock_get_gpll(&i915->drm);
drm_dbg(&i915->drm, "GPLL reference freq: %d kHz\n",
rps->gpll_ref_freq);