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Commit c61ede87 authored by Ville Syrjälä's avatar Ville Syrjälä
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drm/i915: Shuffle some PLL code around 

Shuffle some PLL functions around a bit to avoid ugle
forward declarations later on. No functional changes.
Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220907091057.11572-3-ville.syrjala@linux.intel.com
parent 340b515c
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Showing with 85 additions and 85 deletions
drivers/gpu/drm/i915/display/intel_dpll_mgr.c
View file @ c61ede87
......@@ -905,37 +905,6 @@ hsw_ddi_calculate_wrpll(int clock /* in Hz */,
*r2_out = best.r2;
}
static int
hsw_ddi_wrpll_compute_dpll(struct intel_atomic_state *state,
struct intel_crtc *crtc)
{
struct intel_crtc_state *crtc_state =
intel_atomic_get_new_crtc_state(state, crtc);
unsigned int p, n2, r2;
hsw_ddi_calculate_wrpll(crtc_state->port_clock * 1000, &r2, &n2, &p);
crtc_state->dpll_hw_state.wrpll =
WRPLL_PLL_ENABLE | WRPLL_REF_LCPLL |
WRPLL_DIVIDER_REFERENCE(r2) | WRPLL_DIVIDER_FEEDBACK(n2) |
WRPLL_DIVIDER_POST(p);
return 0;
}
static struct intel_shared_dpll *
hsw_ddi_wrpll_get_dpll(struct intel_atomic_state *state,
struct intel_crtc *crtc)
{
struct intel_crtc_state *crtc_state =
intel_atomic_get_new_crtc_state(state, crtc);
return intel_find_shared_dpll(state, crtc,
&crtc_state->dpll_hw_state,
BIT(DPLL_ID_WRPLL2) |
BIT(DPLL_ID_WRPLL1));
}
static int hsw_ddi_wrpll_get_freq(struct drm_i915_private *dev_priv,
const struct intel_shared_dpll *pll,
const struct intel_dpll_hw_state *pll_state)
......@@ -976,6 +945,37 @@ static int hsw_ddi_wrpll_get_freq(struct drm_i915_private *dev_priv,
return (refclk * n / 10) / (p * r) * 2;
}
static int
hsw_ddi_wrpll_compute_dpll(struct intel_atomic_state *state,
struct intel_crtc *crtc)
{
struct intel_crtc_state *crtc_state =
intel_atomic_get_new_crtc_state(state, crtc);
unsigned int p, n2, r2;
hsw_ddi_calculate_wrpll(crtc_state->port_clock * 1000, &r2, &n2, &p);
crtc_state->dpll_hw_state.wrpll =
WRPLL_PLL_ENABLE | WRPLL_REF_LCPLL |
WRPLL_DIVIDER_REFERENCE(r2) | WRPLL_DIVIDER_FEEDBACK(n2) |
WRPLL_DIVIDER_POST(p);
return 0;
}
static struct intel_shared_dpll *
hsw_ddi_wrpll_get_dpll(struct intel_atomic_state *state,
struct intel_crtc *crtc)
{
struct intel_crtc_state *crtc_state =
intel_atomic_get_new_crtc_state(state, crtc);
return intel_find_shared_dpll(state, crtc,
&crtc_state->dpll_hw_state,
BIT(DPLL_ID_WRPLL2) |
BIT(DPLL_ID_WRPLL1));
}
static int
hsw_ddi_lcpll_compute_dpll(struct intel_crtc_state *crtc_state)
{
......@@ -1618,43 +1618,6 @@ skl_ddi_calculate_wrpll(int clock /* in Hz */,
return 0;
}
static int skl_ddi_hdmi_pll_dividers(struct intel_crtc_state *crtc_state)
{
struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
struct skl_wrpll_params wrpll_params = {};
u32 ctrl1, cfgcr1, cfgcr2;
int ret;
/*
* See comment in intel_dpll_hw_state to understand why we always use 0
* as the DPLL id in this function.
*/
ctrl1 = DPLL_CTRL1_OVERRIDE(0);
ctrl1 |= DPLL_CTRL1_HDMI_MODE(0);
ret = skl_ddi_calculate_wrpll(crtc_state->port_clock * 1000,
i915->display.dpll.ref_clks.nssc, &wrpll_params);
if (ret)
return ret;
cfgcr1 = DPLL_CFGCR1_FREQ_ENABLE |
DPLL_CFGCR1_DCO_FRACTION(wrpll_params.dco_fraction) |
wrpll_params.dco_integer;
cfgcr2 = DPLL_CFGCR2_QDIV_RATIO(wrpll_params.qdiv_ratio) |
DPLL_CFGCR2_QDIV_MODE(wrpll_params.qdiv_mode) |
DPLL_CFGCR2_KDIV(wrpll_params.kdiv) |
DPLL_CFGCR2_PDIV(wrpll_params.pdiv) |
wrpll_params.central_freq;
crtc_state->dpll_hw_state.ctrl1 = ctrl1;
crtc_state->dpll_hw_state.cfgcr1 = cfgcr1;
crtc_state->dpll_hw_state.cfgcr2 = cfgcr2;
return 0;
}
static int skl_ddi_wrpll_get_freq(struct drm_i915_private *i915,
const struct intel_shared_dpll *pll,
const struct intel_dpll_hw_state *pll_state)
......@@ -1726,6 +1689,43 @@ static int skl_ddi_wrpll_get_freq(struct drm_i915_private *i915,
return dco_freq / (p0 * p1 * p2 * 5);
}
static int skl_ddi_hdmi_pll_dividers(struct intel_crtc_state *crtc_state)
{
struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
struct skl_wrpll_params wrpll_params = {};
u32 ctrl1, cfgcr1, cfgcr2;
int ret;
/*
* See comment in intel_dpll_hw_state to understand why we always use 0
* as the DPLL id in this function.
*/
ctrl1 = DPLL_CTRL1_OVERRIDE(0);
ctrl1 |= DPLL_CTRL1_HDMI_MODE(0);
ret = skl_ddi_calculate_wrpll(crtc_state->port_clock * 1000,
i915->display.dpll.ref_clks.nssc, &wrpll_params);
if (ret)
return ret;
cfgcr1 = DPLL_CFGCR1_FREQ_ENABLE |
DPLL_CFGCR1_DCO_FRACTION(wrpll_params.dco_fraction) |
wrpll_params.dco_integer;
cfgcr2 = DPLL_CFGCR2_QDIV_RATIO(wrpll_params.qdiv_ratio) |
DPLL_CFGCR2_QDIV_MODE(wrpll_params.qdiv_mode) |
DPLL_CFGCR2_KDIV(wrpll_params.kdiv) |
DPLL_CFGCR2_PDIV(wrpll_params.pdiv) |
wrpll_params.central_freq;
crtc_state->dpll_hw_state.ctrl1 = ctrl1;
crtc_state->dpll_hw_state.cfgcr1 = cfgcr1;
crtc_state->dpll_hw_state.cfgcr2 = cfgcr2;
return 0;
}
static int
skl_ddi_dp_set_dpll_hw_state(struct intel_crtc_state *crtc_state)
{
......@@ -2245,6 +2245,23 @@ static int bxt_ddi_set_dpll_hw_state(struct intel_crtc_state *crtc_state,
return 0;
}
static int bxt_ddi_pll_get_freq(struct drm_i915_private *i915,
const struct intel_shared_dpll *pll,
const struct intel_dpll_hw_state *pll_state)
{
struct dpll clock;
clock.m1 = 2;
clock.m2 = REG_FIELD_GET(PORT_PLL_M2_INT_MASK, pll_state->pll0) << 22;
if (pll_state->pll3 & PORT_PLL_M2_FRAC_ENABLE)
clock.m2 |= REG_FIELD_GET(PORT_PLL_M2_FRAC_MASK, pll_state->pll2);
clock.n = REG_FIELD_GET(PORT_PLL_N_MASK, pll_state->pll1);
clock.p1 = REG_FIELD_GET(PORT_PLL_P1_MASK, pll_state->ebb0);
clock.p2 = REG_FIELD_GET(PORT_PLL_P2_MASK, pll_state->ebb0);
return chv_calc_dpll_params(i915->display.dpll.ref_clks.nssc, &clock);
}
static int
bxt_ddi_dp_set_dpll_hw_state(struct intel_crtc_state *crtc_state)
{
......@@ -2265,23 +2282,6 @@ bxt_ddi_hdmi_set_dpll_hw_state(struct intel_crtc_state *crtc_state)
return bxt_ddi_set_dpll_hw_state(crtc_state, &clk_div);
}
static int bxt_ddi_pll_get_freq(struct drm_i915_private *i915,
const struct intel_shared_dpll *pll,
const struct intel_dpll_hw_state *pll_state)
{
struct dpll clock;
clock.m1 = 2;
clock.m2 = REG_FIELD_GET(PORT_PLL_M2_INT_MASK, pll_state->pll0) << 22;
if (pll_state->pll3 & PORT_PLL_M2_FRAC_ENABLE)
clock.m2 |= REG_FIELD_GET(PORT_PLL_M2_FRAC_MASK, pll_state->pll2);
clock.n = REG_FIELD_GET(PORT_PLL_N_MASK, pll_state->pll1);
clock.p1 = REG_FIELD_GET(PORT_PLL_P1_MASK, pll_state->ebb0);
clock.p2 = REG_FIELD_GET(PORT_PLL_P2_MASK, pll_state->ebb0);
return chv_calc_dpll_params(i915->display.dpll.ref_clks.nssc, &clock);
}
static int bxt_compute_dpll(struct intel_atomic_state *state,
struct intel_crtc *crtc,
struct intel_encoder *encoder)
......
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