drm/i915: Move DDI clock readout to encoder->get_config()

Move the *_get_ddi_pll() stuff into the encodet->get_config() hook.
There it neatly sits next to the matching .{enable,disable}_clock()
functions.

In order to avoid excessive boilerplate I changed the behaviour
such that all platforms now do the readout via
crtc_state->port_dpll[].

ICL+ TC is still a bit special due to TBTPLL not having a functional
.get_freq(). Should probably change that by adopting the LCPLL
approach, but that would require a fairly substantial rework of the
DPLL ID handling. So leave it for later.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210224144214.24803-5-ville.syrjala@linux.intel.com
Reviewed-by: Mika Kahola <mika.kahola@intel.com>

1 files changed, 0 insertions, 219 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 78817d0c82e2..18d7f7afc8ee 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -6554,212 +6554,6 @@ out:
 	return ret;
 }
 
-static void dg1_get_ddi_pll(struct drm_i915_private *dev_priv, enum port port,
-			    struct intel_crtc_state *pipe_config)
-{
-	enum icl_port_dpll_id port_dpll_id = ICL_PORT_DPLL_DEFAULT;
-	enum phy phy = intel_port_to_phy(dev_priv, port);
-	struct icl_port_dpll *port_dpll;
-	struct intel_shared_dpll *pll;
-	enum intel_dpll_id id;
-	bool pll_active;
-	u32 clk_sel;
-
-	clk_sel = intel_de_read(dev_priv, DG1_DPCLKA_CFGCR0(phy)) & DG1_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy);
-	id = DG1_DPCLKA_CFGCR0_DDI_CLK_SEL_DPLL_MAP(clk_sel, phy);
-
-	if (WARN_ON(id > DPLL_ID_DG1_DPLL3))
-		return;
-
-	pll = intel_get_shared_dpll_by_id(dev_priv, id);
-	port_dpll = &pipe_config->icl_port_dplls[port_dpll_id];
-
-	port_dpll->pll = pll;
-	pll_active = intel_dpll_get_hw_state(dev_priv, pll,
-					     &port_dpll->hw_state);
-	drm_WARN_ON(&dev_priv->drm, !pll_active);
-
-	icl_set_active_port_dpll(pipe_config, port_dpll_id);
-}
-
-static void icl_get_ddi_pll(struct drm_i915_private *dev_priv, enum port port,
-			    struct intel_crtc_state *pipe_config)
-{
-	enum phy phy = intel_port_to_phy(dev_priv, port);
-	enum icl_port_dpll_id port_dpll_id;
-	struct icl_port_dpll *port_dpll;
-	struct intel_shared_dpll *pll;
-	enum intel_dpll_id id;
-	bool pll_active;
-	i915_reg_t reg;
-	u32 temp;
-
-	if (intel_phy_is_combo(dev_priv, phy)) {
-		u32 mask, shift;
-
-		if (IS_ALDERLAKE_S(dev_priv)) {
-			reg = ADLS_DPCLKA_CFGCR(phy);
-			mask = ADLS_DPCLKA_CFGCR_DDI_CLK_SEL_MASK(phy);
-			shift = ADLS_DPCLKA_CFGCR_DDI_SHIFT(phy);
-		} else if (IS_ROCKETLAKE(dev_priv)) {
-			reg = ICL_DPCLKA_CFGCR0;
-			mask = RKL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy);
-			shift = RKL_DPCLKA_CFGCR0_DDI_CLK_SEL_SHIFT(phy);
-		} else {
-			reg = ICL_DPCLKA_CFGCR0;
-			mask = ICL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy);
-			shift = ICL_DPCLKA_CFGCR0_DDI_CLK_SEL_SHIFT(phy);
-		}
-
-		temp = intel_de_read(dev_priv, reg) & mask;
-		id = temp >> shift;
-		port_dpll_id = ICL_PORT_DPLL_DEFAULT;
-	} else if (intel_phy_is_tc(dev_priv, phy)) {
-		u32 clk_sel = intel_de_read(dev_priv, DDI_CLK_SEL(port)) & DDI_CLK_SEL_MASK;
-
-		if (clk_sel == DDI_CLK_SEL_MG) {
-			id = icl_tc_port_to_pll_id(intel_port_to_tc(dev_priv,
-								    port));
-			port_dpll_id = ICL_PORT_DPLL_MG_PHY;
-		} else {
-			drm_WARN_ON(&dev_priv->drm,
-				    clk_sel < DDI_CLK_SEL_TBT_162);
-			id = DPLL_ID_ICL_TBTPLL;
-			port_dpll_id = ICL_PORT_DPLL_DEFAULT;
-		}
-	} else {
-		drm_WARN(&dev_priv->drm, 1, "Invalid port %x\n", port);
-		return;
-	}
-
-	pll = intel_get_shared_dpll_by_id(dev_priv, id);
-	port_dpll = &pipe_config->icl_port_dplls[port_dpll_id];
-
-	port_dpll->pll = pll;
-	pll_active = intel_dpll_get_hw_state(dev_priv, pll,
-					     &port_dpll->hw_state);
-	drm_WARN_ON(&dev_priv->drm, !pll_active);
-
-	icl_set_active_port_dpll(pipe_config, port_dpll_id);
-}
-
-static void cnl_get_ddi_pll(struct drm_i915_private *dev_priv, enum port port,
-			    struct intel_crtc_state *pipe_config)
-{
-	struct intel_shared_dpll *pll;
-	enum intel_dpll_id id;
-	bool pll_active;
-	u32 temp;
-
-	temp = intel_de_read(dev_priv, DPCLKA_CFGCR0) & DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(port);
-	id = temp >> DPCLKA_CFGCR0_DDI_CLK_SEL_SHIFT(port);
-
-	if (drm_WARN_ON(&dev_priv->drm, id < SKL_DPLL0 || id > SKL_DPLL2))
-		return;
-
-	pll = intel_get_shared_dpll_by_id(dev_priv, id);
-
-	pipe_config->shared_dpll = pll;
-	pll_active = intel_dpll_get_hw_state(dev_priv, pll,
-					     &pipe_config->dpll_hw_state);
-	drm_WARN_ON(&dev_priv->drm, !pll_active);
-}
-
-static void bxt_get_ddi_pll(struct drm_i915_private *dev_priv,
-				enum port port,
-				struct intel_crtc_state *pipe_config)
-{
-	struct intel_shared_dpll *pll;
-	enum intel_dpll_id id;
-	bool pll_active;
-
-	switch (port) {
-	case PORT_A:
-		id = DPLL_ID_SKL_DPLL0;
-		break;
-	case PORT_B:
-		id = DPLL_ID_SKL_DPLL1;
-		break;
-	case PORT_C:
-		id = DPLL_ID_SKL_DPLL2;
-		break;
-	default:
-		drm_err(&dev_priv->drm, "Incorrect port type\n");
-		return;
-	}
-
-	pll = intel_get_shared_dpll_by_id(dev_priv, id);
-
-	pipe_config->shared_dpll = pll;
-	pll_active = intel_dpll_get_hw_state(dev_priv, pll,
-					     &pipe_config->dpll_hw_state);
-	drm_WARN_ON(&dev_priv->drm, !pll_active);
-}
-
-static void skl_get_ddi_pll(struct drm_i915_private *dev_priv, enum port port,
-			    struct intel_crtc_state *pipe_config)
-{
-	struct intel_shared_dpll *pll;
-	enum intel_dpll_id id;
-	bool pll_active;
-	u32 temp;
-
-	temp = intel_de_read(dev_priv, DPLL_CTRL2) & DPLL_CTRL2_DDI_CLK_SEL_MASK(port);
-	id = temp >> (port * 3 + 1);
-
-	if (drm_WARN_ON(&dev_priv->drm, id < SKL_DPLL0 || id > SKL_DPLL3))
-		return;
-
-	pll = intel_get_shared_dpll_by_id(dev_priv, id);
-
-	pipe_config->shared_dpll = pll;
-	pll_active = intel_dpll_get_hw_state(dev_priv, pll,
-					     &pipe_config->dpll_hw_state);
-	drm_WARN_ON(&dev_priv->drm, !pll_active);
-}
-
-static void hsw_get_ddi_pll(struct drm_i915_private *dev_priv, enum port port,
-			    struct intel_crtc_state *pipe_config)
-{
-	struct intel_shared_dpll *pll;
-	enum intel_dpll_id id;
-	u32 ddi_pll_sel = intel_de_read(dev_priv, PORT_CLK_SEL(port));
-	bool pll_active;
-
-	switch (ddi_pll_sel) {
-	case PORT_CLK_SEL_WRPLL1:
-		id = DPLL_ID_WRPLL1;
-		break;
-	case PORT_CLK_SEL_WRPLL2:
-		id = DPLL_ID_WRPLL2;
-		break;
-	case PORT_CLK_SEL_SPLL:
-		id = DPLL_ID_SPLL;
-		break;
-	case PORT_CLK_SEL_LCPLL_810:
-		id = DPLL_ID_LCPLL_810;
-		break;
-	case PORT_CLK_SEL_LCPLL_1350:
-		id = DPLL_ID_LCPLL_1350;
-		break;
-	case PORT_CLK_SEL_LCPLL_2700:
-		id = DPLL_ID_LCPLL_2700;
-		break;
-	default:
-		MISSING_CASE(ddi_pll_sel);
-		fallthrough;
-	case PORT_CLK_SEL_NONE:
-		return;
-	}
-
-	pll = intel_get_shared_dpll_by_id(dev_priv, id);
-
-	pipe_config->shared_dpll = pll;
-	pll_active = intel_dpll_get_hw_state(dev_priv, pll,
-					     &pipe_config->dpll_hw_state);
-	drm_WARN_ON(&dev_priv->drm, !pll_active);
-}
-
 static bool hsw_get_transcoder_state(struct intel_crtc *crtc,
 				     struct intel_crtc_state *pipe_config,
 				     struct intel_display_power_domain_set *power_domain_set)
@@ -6916,19 +6710,6 @@ static void hsw_get_ddi_port_state(struct intel_crtc *crtc,
 			port = TRANS_DDI_FUNC_CTL_VAL_TO_PORT(tmp);
 	}
 
-	if (IS_DG1(dev_priv))
-		dg1_get_ddi_pll(dev_priv, port, pipe_config);
-	else if (INTEL_GEN(dev_priv) >= 11)
-		icl_get_ddi_pll(dev_priv, port, pipe_config);
-	else if (IS_CANNONLAKE(dev_priv))
-		cnl_get_ddi_pll(dev_priv, port, pipe_config);
-	else if (IS_GEN9_LP(dev_priv))
-		bxt_get_ddi_pll(dev_priv, port, pipe_config);
-	else if (IS_GEN9_BC(dev_priv))
-		skl_get_ddi_pll(dev_priv, port, pipe_config);
-	else
-		hsw_get_ddi_pll(dev_priv, port, pipe_config);
-
 	/*
 	 * Haswell has only FDI/PCH transcoder A. It is which is connected to
 	 * DDI E. So just check whether this pipe is wired to DDI E and whether