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drm/i915: Remove duplicated bxt/cnl/icl .modeset_calc_cdclk() funcs

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Reuse the same .modeset_calc_cdclk() function for all bxt+.

The only difference in between the cnl/icl and the bxt variants
is the call to cnl_compute_min_voltage_level(). We can do that call
just fine on older platforms since they leave min_voltage_level[]
zeroed. Let's rename the function to bxt_compute_min_voltage_level()
just so it stays consistent with the rest of the naming scheme.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190911133129.27466-4-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2019-09-11 16:31:29 +03:00 committed by Chris Wilson
parent 502d1c04f5
commit 933122cc7c
1 changed files with 9 additions and 37 deletions
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46
drivers/gpu/drm/i915/display/intel_cdclk.c
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@ -2017,6 +2017,10 @@ static int intel_compute_min_cdclk(struct intel_atomic_state *state)
}
/*
* Account for port clock min voltage level requirements.
* This only really does something on CNL+ but can be
* called on earlier platforms as well.
*
* Note that this functions assumes that 0 is
* the lowest voltage value, and higher values
* correspond to increasingly higher voltages.
@ -2025,7 +2029,7 @@ static int intel_compute_min_cdclk(struct intel_atomic_state *state)
* future platforms this code will need to be
* adjusted.
*/
static u8 cnl_compute_min_voltage_level(struct intel_atomic_state *state)
static u8 bxt_compute_min_voltage_level(struct intel_atomic_state *state)
{
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
struct intel_crtc *crtc;
@ -2195,43 +2199,11 @@ static int bxt_modeset_calc_cdclk(struct intel_atomic_state *state)
cdclk = bxt_calc_cdclk(dev_priv, min_cdclk);
vco = bxt_calc_cdclk_pll_vco(dev_priv, cdclk);
state->cdclk.logical.vco = vco;
state->cdclk.logical.cdclk = cdclk;
state->cdclk.logical.voltage_level =
dev_priv->display.calc_voltage_level(cdclk);
if (!state->active_pipes) {
cdclk = bxt_calc_cdclk(dev_priv, state->cdclk.force_min_cdclk);
vco = bxt_calc_cdclk_pll_vco(dev_priv, cdclk);
state->cdclk.actual.vco = vco;
state->cdclk.actual.cdclk = cdclk;
state->cdclk.actual.voltage_level =
dev_priv->display.calc_voltage_level(cdclk);
} else {
state->cdclk.actual = state->cdclk.logical;
}
return 0;
}
static int cnl_modeset_calc_cdclk(struct intel_atomic_state *state)
{
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
int min_cdclk, cdclk, vco;
min_cdclk = intel_compute_min_cdclk(state);
if (min_cdclk < 0)
return min_cdclk;
cdclk = bxt_calc_cdclk(dev_priv, min_cdclk);
vco = bxt_calc_cdclk_pll_vco(dev_priv, cdclk);
state->cdclk.logical.vco = vco;
state->cdclk.logical.cdclk = cdclk;
state->cdclk.logical.voltage_level =
max(dev_priv->display.calc_voltage_level(cdclk),
cnl_compute_min_voltage_level(state));
bxt_compute_min_voltage_level(state));
if (!state->active_pipes) {
cdclk = bxt_calc_cdclk(dev_priv, state->cdclk.force_min_cdclk);
@ -2466,17 +2438,17 @@ void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv)
{
if (IS_ELKHARTLAKE(dev_priv)) {
dev_priv->display.set_cdclk = bxt_set_cdclk;
dev_priv->display.modeset_calc_cdclk = cnl_modeset_calc_cdclk;
dev_priv->display.modeset_calc_cdclk = bxt_modeset_calc_cdclk;
dev_priv->display.calc_voltage_level = ehl_calc_voltage_level;
dev_priv->cdclk.table = icl_cdclk_table;
} else if (INTEL_GEN(dev_priv) >= 11) {
dev_priv->display.set_cdclk = bxt_set_cdclk;
dev_priv->display.modeset_calc_cdclk = cnl_modeset_calc_cdclk;
dev_priv->display.modeset_calc_cdclk = bxt_modeset_calc_cdclk;
dev_priv->display.calc_voltage_level = icl_calc_voltage_level;
dev_priv->cdclk.table = icl_cdclk_table;
} else if (IS_CANNONLAKE(dev_priv)) {
dev_priv->display.set_cdclk = bxt_set_cdclk;
dev_priv->display.modeset_calc_cdclk = cnl_modeset_calc_cdclk;
dev_priv->display.modeset_calc_cdclk = bxt_modeset_calc_cdclk;
dev_priv->display.calc_voltage_level = cnl_calc_voltage_level;
dev_priv->cdclk.table = cnl_cdclk_table;
} else if (IS_GEN9_LP(dev_priv)) {