drm/i915/pmdemand: make struct intel_pmdemand_state opaque

Only intel_pmdemand.c should look inside the struct
intel_pmdemand_state. Indeed, this is already the case. Finish the job
and make struct intel_pmdemand_state opaque, preventing any direct pokes
at the guts of it in the future.

Cc: Gustavo Sousa <[e-mail]>
Reviewed-by: Gustavo Sousa <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/bc5[e-mail]
Signed-off-by: Jani Nikula <[e-mail]>

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

···
 #include "intel_pmdemand.h"
 #include "skl_watermark.h"
 
+struct pmdemand_params {
+	u16 qclk_gv_bw;
+	u8 voltage_index;
+	u8 qclk_gv_index;
+	u8 active_pipes;
+	u8 active_dbufs;	/* pre-Xe3 only */
+	/* Total number of non type C active phys from active_phys_mask */
+	u8 active_phys;
+	u8 plls;
+	u16 cdclk_freq_mhz;
+	/* max from ddi_clocks[] */
+	u16 ddiclk_max;
+	u8 scalers;		/* pre-Xe3 only */
+};
+
+struct intel_pmdemand_state {
+	struct intel_global_state base;
+
+	/* Maintain a persistent list of port clocks across all crtcs */
+	int ddi_clocks[I915_MAX_PIPES];
+
+	/* Maintain a persistent list of non type C phys mask */
+	u16 active_combo_phys_mask;
+
+	/* Parameters to be configured in the pmdemand registers */
+	struct pmdemand_params params;
+};
+
 struct intel_pmdemand_state *to_intel_pmdemand_state(struct intel_global_state *obj_state)
 {
 	return container_of(obj_state, struct intel_pmdemand_state, base);

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

···
 #ifndef __INTEL_PMDEMAND_H__
 #define __INTEL_PMDEMAND_H__
 
-#include "intel_display_limits.h"
-#include "intel_global_state.h"
+#include <linux/types.h>
 
+enum pipe;
 struct drm_i915_private;
 struct intel_atomic_state;
 struct intel_crtc_state;
 struct intel_encoder;
+struct intel_global_state;
 struct intel_plane_state;
-
-struct pmdemand_params {
-	u16 qclk_gv_bw;
-	u8 voltage_index;
-	u8 qclk_gv_index;
-	u8 active_pipes;
-	u8 active_dbufs;	/* pre-Xe3 only */
-	/* Total number of non type C active phys from active_phys_mask */
-	u8 active_phys;
-	u8 plls;
-	u16 cdclk_freq_mhz;
-	/* max from ddi_clocks[] */
-	u16 ddiclk_max;
-	u8 scalers;		/* pre-Xe3 only */
-};
-
-struct intel_pmdemand_state {
-	struct intel_global_state base;
-
-	/* Maintain a persistent list of port clocks across all crtcs */
-	int ddi_clocks[I915_MAX_PIPES];
-
-	/* Maintain a persistent list of non type C phys mask */
-	u16 active_combo_phys_mask;
-
-	/* Parameters to be configured in the pmdemand registers */
-	struct pmdemand_params params;
-};
+struct intel_pmdemand_state;
 
 struct intel_pmdemand_state *to_intel_pmdemand_state(struct intel_global_state *obj_state);