From: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
The disable function can be the same as for MG phy since the same
registers are used. The others are different as registers changed,
also adding a empty dkl_pll_write() to be implemented later.
Signed-off-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 115 +++++++++++++++++-
1 file changed, 114 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
index 84e734d44828..424f9213c80d 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
@@ -3086,6 +3086,76 @@ static bool mg_pll_get_hw_state(struct drm_i915_private *dev_priv,
return ret;
}
+static bool dkl_pll_get_hw_state(struct drm_i915_private *dev_priv,
+ struct intel_shared_dpll *pll,
+ struct intel_dpll_hw_state *hw_state)
+{
+ const enum intel_dpll_id id = pll->info->id;
+ enum tc_port tc_port = icl_pll_id_to_tc_port(id);
+ intel_wakeref_t wakeref;
+ bool ret = false;
+ u32 val;
+
+ wakeref = intel_display_power_get_if_enabled(dev_priv,
+ POWER_DOMAIN_DISPLAY_CORE);
+ if (!wakeref)
+ return false;
+
+ val = I915_READ(MG_PLL_ENABLE(tc_port));
+ if (!(val & PLL_ENABLE))
+ goto out;
+
+ /*
+ * All registers read here have the same HIP_INDEX_REG even though
+ * they are on different building blocks
+ */
+ I915_WRITE(HIP_INDEX_REG(tc_port), 0x2);
+
+ hw_state->mg_refclkin_ctl = I915_READ(DKL_REFCLKIN_CTL(tc_port));
+ hw_state->mg_refclkin_ctl &= MG_REFCLKIN_CTL_OD_2_MUX_MASK;
+
+ hw_state->mg_clktop2_hsclkctl =
+ I915_READ(DKL_CLKTOP2_HSCLKCTL(tc_port));
+ hw_state->mg_clktop2_hsclkctl &=
+ MG_CLKTOP2_HSCLKCTL_TLINEDRV_CLKSEL_MASK |
+ MG_CLKTOP2_HSCLKCTL_CORE_INPUTSEL_MASK |
+ MG_CLKTOP2_HSCLKCTL_HSDIV_RATIO_MASK |
+ MG_CLKTOP2_HSCLKCTL_DSDIV_RATIO_MASK;
+
+ hw_state->mg_clktop2_coreclkctl1 =
+ I915_READ(DKL_CLKTOP2_CORECLKCTL1(tc_port));
+ hw_state->mg_clktop2_coreclkctl1 &=
+ MG_CLKTOP2_CORECLKCTL1_A_DIVRATIO_MASK;
+
+ hw_state->mg_pll_div0 = I915_READ(DKL_PLL_DIV0(tc_port));
+ hw_state->mg_pll_div0 &= (DKL_PLL_DIV0_INTEG_COEFF_MASK |
+ DKL_PLL_DIV0_PROP_COEFF_MASK |
+ DKL_PLL_DIV0_FBPREDIV_MASK |
+ DKL_PLL_DIV0_FBDIV_INT_MASK);
+
+ hw_state->mg_pll_div1 = I915_READ(DKL_PLL_DIV1(tc_port));
+ hw_state->mg_pll_div1 &= (DKL_PLL_DIV1_IREF_TRIM_MASK |
+ DKL_PLL_DIV1_TDC_TARGET_CNT_MASK);
+
+ hw_state->mg_pll_ssc = I915_READ(DKL_PLL_SSC(tc_port));
+ hw_state->mg_pll_ssc &= (DKL_PLL_SSC_IREF_NDIV_RATIO_MASK |
+ DKL_PLL_SSC_STEP_LEN_MASK |
+ DKL_PLL_SSC_STEP_NUM_MASK |
+ DKL_PLL_SSC_EN);
+
+ hw_state->mg_pll_bias = I915_READ(DKL_PLL_BIAS(tc_port));
+ hw_state->mg_pll_bias &= (DKL_PLL_BIAS_FRAC_EN_H |
+ DKL_PLL_BIAS_FBDIV_FRAC_MASK);
+
+ hw_state->mg_pll_tdc_coldst_bias =
+ I915_READ(DKL_PLL_TDC_COLDST_BIAS(tc_port));
+
+ ret = true;
+out:
+ intel_display_power_put(dev_priv, POWER_DOMAIN_DISPLAY_CORE, wakeref);
+ return ret;
+}
+
static bool icl_pll_get_hw_state(struct drm_i915_private *dev_priv,
struct intel_shared_dpll *pll,
struct intel_dpll_hw_state *hw_state,
@@ -3220,6 +3290,12 @@ static void icl_mg_pll_write(struct drm_i915_private *dev_priv,
POSTING_READ(MG_PLL_TDC_COLDST_BIAS(tc_port));
}
+static void dkl_pll_write(struct drm_i915_private *dev_priv,
+ struct intel_shared_dpll *pll)
+{
+ /* TODO */
+}
+
static void icl_pll_power_enable(struct drm_i915_private *dev_priv,
struct intel_shared_dpll *pll,
i915_reg_t enable_reg)
@@ -3325,6 +3401,32 @@ static void mg_pll_enable(struct drm_i915_private *dev_priv,
/* DVFS post sequence would be here. See the comment above. */
}
+static void dkl_pll_enable(struct drm_i915_private *dev_priv,
+ struct intel_shared_dpll *pll)
+{
+ /*
+ * From spec: MG register instances are being used for TypeC in general.
+ * The same MG register instances should be programmed for Dekel PLLs
+ * as well.
+ */
+ i915_reg_t enable_reg =
+ MG_PLL_ENABLE(icl_pll_id_to_tc_port(pll->info->id));
+
+ icl_pll_power_enable(dev_priv, pll, enable_reg);
+
+ dkl_pll_write(dev_priv, pll);
+
+ /*
+ * DVFS pre sequence would be here, but in our driver the cdclk code
+ * paths should already be setting the appropriate voltage, hence we do
+ * nothing here.
+ */
+
+ icl_pll_enable(dev_priv, pll, enable_reg);
+
+ /* DVFS post sequence would be here. See the comment above. */
+}
+
static void icl_pll_disable(struct drm_i915_private *dev_priv,
struct intel_shared_dpll *pll,
i915_reg_t enable_reg)
@@ -3467,11 +3569,22 @@ static const struct intel_dpll_mgr ehl_pll_mgr = {
.dump_hw_state = icl_dump_hw_state,
};
+static const struct intel_shared_dpll_funcs dkl_pll_funcs = {
+ .enable = dkl_pll_enable,
+ .disable = mg_pll_disable,
+ .get_hw_state = dkl_pll_get_hw_state,
+};
+
static const struct dpll_info tgl_plls[] = {
{ "DPLL 0", &combo_pll_funcs, DPLL_ID_ICL_DPLL0, 0 },
{ "DPLL 1", &combo_pll_funcs, DPLL_ID_ICL_DPLL1, 0 },
{ "TBT PLL", &tbt_pll_funcs, DPLL_ID_ICL_TBTPLL, 0 },
- /* TODO: Add typeC plls */
+ { "TC PLL 1", &dkl_pll_funcs, DPLL_ID_ICL_MGPLL1, 0 },
+ { "TC PLL 2", &dkl_pll_funcs, DPLL_ID_ICL_MGPLL2, 0 },
+ { "TC PLL 3", &dkl_pll_funcs, DPLL_ID_ICL_MGPLL3, 0 },
+ { "TC PLL 4", &dkl_pll_funcs, DPLL_ID_ICL_MGPLL4, 0 },
+ { "TC PLL 5", &dkl_pll_funcs, DPLL_ID_TGL_MGPLL5, 0 },
+ { "TC PLL 6", &dkl_pll_funcs, DPLL_ID_TGL_MGPLL6, 0 },
{ },
};
--
2.23.0
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