drm/i915/tgl: Add power well to support 4th pipe

Add power well 5 to support 4th pipe and transcoder on TGL.

Cc: James Ausmus <james.ausmus@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190711173115.28296-10-lucas.demarchi@intel.com

drivers/gpu/drm/i915/display/intel_display_power.c

@@ -37,18 +37,24 @@ intel_display_power_domain_str(struct drm_i915_private *i915,
 		return "PIPE_B";
 	case POWER_DOMAIN_PIPE_C:
 		return "PIPE_C";
+	case POWER_DOMAIN_PIPE_D:
+		return "PIPE_D";
 	case POWER_DOMAIN_PIPE_A_PANEL_FITTER:
 		return "PIPE_A_PANEL_FITTER";
 	case POWER_DOMAIN_PIPE_B_PANEL_FITTER:
 		return "PIPE_B_PANEL_FITTER";
 	case POWER_DOMAIN_PIPE_C_PANEL_FITTER:
 		return "PIPE_C_PANEL_FITTER";
+	case POWER_DOMAIN_PIPE_D_PANEL_FITTER:
+		return "PIPE_D_PANEL_FITTER";
 	case POWER_DOMAIN_TRANSCODER_A:
 		return "TRANSCODER_A";
 	case POWER_DOMAIN_TRANSCODER_B:
 		return "TRANSCODER_B";
 	case POWER_DOMAIN_TRANSCODER_C:
 		return "TRANSCODER_C";
+	case POWER_DOMAIN_TRANSCODER_D:
+		return "TRANSCODER_D";
 	case POWER_DOMAIN_TRANSCODER_EDP:
 		return "TRANSCODER_EDP";
 	case POWER_DOMAIN_TRANSCODER_VDSC_PW2:
@@ -2540,8 +2546,13 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
 #define ICL_AUX_TBT4_IO_POWER_DOMAINS (			\
 	BIT_ULL(POWER_DOMAIN_AUX_TBT4))
 
-/* TODO: TGL_PW_5_POWER_DOMAINS: PIPE_D */
+#define TGL_PW_5_POWER_DOMAINS (			\
+	BIT_ULL(POWER_DOMAIN_PIPE_D) |			\
+	BIT_ULL(POWER_DOMAIN_PIPE_D_PANEL_FITTER) |     \
+	BIT_ULL(POWER_DOMAIN_INIT))
+
 #define TGL_PW_4_POWER_DOMAINS (			\
+	TGL_PW_5_POWER_DOMAINS |			\
 	BIT_ULL(POWER_DOMAIN_PIPE_C) |			\
 	BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) |	\
 	BIT_ULL(POWER_DOMAIN_INIT))
@@ -2551,7 +2562,7 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
 	BIT_ULL(POWER_DOMAIN_PIPE_B) |			\
 	BIT_ULL(POWER_DOMAIN_TRANSCODER_B) |		\
 	BIT_ULL(POWER_DOMAIN_TRANSCODER_C) |		\
-	/* TODO: TRANSCODER_D */			\
+	BIT_ULL(POWER_DOMAIN_TRANSCODER_D) |		\
 	BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) |	\
 	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC1_LANES) |	\
 	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC1_IO) |		\
@@ -3894,7 +3905,18 @@ static const struct i915_power_well_desc tgl_power_wells[] = {
 			.hsw.irq_pipe_mask = BIT(PIPE_C),
 		}
 	},
-	/* TODO: power well 5 for pipe D */
+	{
+		.name = "power well 5",
+		.domains = TGL_PW_5_POWER_DOMAINS,
+		.ops = &hsw_power_well_ops,
+		.id = DISP_PW_ID_NONE,
+		{
+			.hsw.regs = &hsw_power_well_regs,
+			.hsw.idx = TGL_PW_CTL_IDX_PW_5,
+			.hsw.has_fuses = true,
+			.hsw.irq_pipe_mask = BIT(PIPE_D),
+		},
+	},
 };
 
 static int

drivers/gpu/drm/i915/display/intel_display_power.h

@@ -18,12 +18,15 @@ enum intel_display_power_domain {
 	POWER_DOMAIN_PIPE_A,
 	POWER_DOMAIN_PIPE_B,
 	POWER_DOMAIN_PIPE_C,
+	POWER_DOMAIN_PIPE_D,
 	POWER_DOMAIN_PIPE_A_PANEL_FITTER,
 	POWER_DOMAIN_PIPE_B_PANEL_FITTER,
 	POWER_DOMAIN_PIPE_C_PANEL_FITTER,
+	POWER_DOMAIN_PIPE_D_PANEL_FITTER,
 	POWER_DOMAIN_TRANSCODER_A,
 	POWER_DOMAIN_TRANSCODER_B,
 	POWER_DOMAIN_TRANSCODER_C,
+	POWER_DOMAIN_TRANSCODER_D,
 	POWER_DOMAIN_TRANSCODER_EDP,
 	/* VDSC/joining for TRANSCODER_EDP (ICL) or TRANSCODER_A (TGL) */
 	POWER_DOMAIN_TRANSCODER_VDSC_PW2,

drivers/gpu/drm/i915/i915_reg.h

@@ -9148,6 +9148,7 @@ enum {
 #define   SKL_PW_CTL_IDX_MISC_IO		0
 
 /* ICL/TGL - power wells */
+#define   TGL_PW_CTL_IDX_PW_5			4
 #define   ICL_PW_CTL_IDX_PW_4			3
 #define   ICL_PW_CTL_IDX_PW_3			2
 #define   ICL_PW_CTL_IDX_PW_2			1