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drm/i915: Stop forcing clock gating init for future platforms

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In the early days of i915, pretty much every platform needed to
initialize _something_ in the clock gating init functions.  In some
cases the items initialized were inside the GT (and really should have
been initialized through the GT workaround infrastructure instead).
In other cases they were display programming (sometimes not even related
to "clock gating" at all!) which probably needs to move inside the
display-specific code.  The number of initialization tasks that are
truly "clock gating" and don't fall within the GT or display domains is
relatively limited.  Let's stop forcing future platforms to always
define a clock gating init hook.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230906234732.3728630-7-matthew.d.roper@intel.com
This commit is contained in:
Matt Roper 2023-09-06 16:47:34 -07:00
parent 231b1d6c9a
commit 7ed888fa78
1 changed files with 3 additions and 7 deletions
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10
drivers/gpu/drm/i915/intel_clock_gating.c
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@ -843,9 +843,7 @@ CG_FUNCS(nop);
*/
void intel_clock_gating_hooks_init(struct drm_i915_private *i915)
{
if (IS_METEORLAKE(i915))
i915->clock_gating_funcs = &nop_clock_gating_funcs;
else if (IS_PONTEVECCHIO(i915))
if (IS_PONTEVECCHIO(i915))
i915->clock_gating_funcs = &pvc_clock_gating_funcs;
else if (IS_DG2(i915))
i915->clock_gating_funcs = &dg2_clock_gating_funcs;
@ -853,7 +851,7 @@ void intel_clock_gating_hooks_init(struct drm_i915_private *i915)
i915->clock_gating_funcs = &xehpsdv_clock_gating_funcs;
else if (IS_ALDERLAKE_P(i915))
i915->clock_gating_funcs = &adlp_clock_gating_funcs;
else if (GRAPHICS_VER(i915) == 12)
else if (DISPLAY_VER(i915) == 12)
i915->clock_gating_funcs = &gen12lp_clock_gating_funcs;
else if (GRAPHICS_VER(i915) == 11)
i915->clock_gating_funcs = &icl_clock_gating_funcs;
@ -893,8 +891,6 @@ void intel_clock_gating_hooks_init(struct drm_i915_private *i915)
i915->clock_gating_funcs = &i85x_clock_gating_funcs;
else if (GRAPHICS_VER(i915) == 2)
i915->clock_gating_funcs = &i830_clock_gating_funcs;
else {
MISSING_CASE(INTEL_DEVID(i915));
else
i915->clock_gating_funcs = &nop_clock_gating_funcs;
}
}