drm/amd/display: Change from aux_engine to dce_aux

[Why]
The aux_engine struct is needlessly complex and
is defined multiple times.  It contains function pointers
that each have only one version and are called only from
inside dce_aux.

[How]
Replace aux_engine with a new struct called dce_aux.
Remove all function pointers and call functions directly.
Remove unused functions
Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dce/dce_aux.h

@@ -75,8 +75,20 @@ enum {	/* This is the timeout as defined in DP 1.2a,
 	 */
 	SW_AUX_TIMEOUT_PERIOD_MULTIPLIER = 4
 };
+
+struct dce_aux {
+	uint32_t inst;
+	struct ddc *ddc;
+	struct dc_context *ctx;
+	/* following values are expressed in milliseconds */
+	uint32_t delay;
+	uint32_t max_defer_write_retry;
+
+	bool acquire_reset;
+};
+
 struct aux_engine_dce110 {
-	struct aux_engine base;
+	struct dce_aux base;
 	const struct dce110_aux_registers *regs;
 	struct {
 		uint32_t aux_control;
@@ -96,17 +108,17 @@ struct aux_engine_dce110_init_data {
 	const struct dce110_aux_registers *regs;
 };
 
-struct aux_engine *dce110_aux_engine_construct(
+struct dce_aux *dce110_aux_engine_construct(
 		struct aux_engine_dce110 *aux_engine110,
 		struct dc_context *ctx,
 		uint32_t inst,
 		uint32_t timeout_period,
 		const struct dce110_aux_registers *regs);
 
-void dce110_engine_destroy(struct aux_engine **engine);
+void dce110_engine_destroy(struct dce_aux **engine);
 
 bool dce110_aux_engine_acquire(
-	struct aux_engine *aux_engine,
+	struct dce_aux *aux_engine,
 	struct ddc *ddc);
 
 int dce_aux_transfer(struct ddc_service *ddc,

drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c

@@ -587,7 +587,7 @@ struct output_pixel_processor *dce100_opp_create(
 	return &opp->base;
 }
 
-struct aux_engine *dce100_aux_engine_create(
+struct dce_aux *dce100_aux_engine_create(
 	struct dc_context *ctx,
 	uint32_t inst)
 {

drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c

@@ -606,7 +606,7 @@ static struct output_pixel_processor *dce110_opp_create(
 	return &opp->base;
 }
 
-struct aux_engine *dce110_aux_engine_create(
+struct dce_aux *dce110_aux_engine_create(
 	struct dc_context *ctx,
 	uint32_t inst)
 {

drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c

@@ -607,7 +607,7 @@ struct output_pixel_processor *dce112_opp_create(
 	return &opp->base;
 }
 
-struct aux_engine *dce112_aux_engine_create(
+struct dce_aux *dce112_aux_engine_create(
 	struct dc_context *ctx,
 	uint32_t inst)
 {

drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c

@@ -391,7 +391,7 @@ struct output_pixel_processor *dce120_opp_create(
 			     ctx, inst, &opp_regs[inst], &opp_shift, &opp_mask);
 	return &opp->base;
 }
-struct aux_engine *dce120_aux_engine_create(
+struct dce_aux *dce120_aux_engine_create(
 	struct dc_context *ctx,
 	uint32_t inst)
 {

drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c

@@ -467,7 +467,7 @@ static struct output_pixel_processor *dce80_opp_create(
 	return &opp->base;
 }
 
-struct aux_engine *dce80_aux_engine_create(
+struct dce_aux *dce80_aux_engine_create(
 	struct dc_context *ctx,
 	uint32_t inst)
 {

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c

@@ -609,7 +609,7 @@ static struct output_pixel_processor *dcn10_opp_create(
 	return &opp->base;
 }
 
-struct aux_engine *dcn10_aux_engine_create(
+struct dce_aux *dcn10_aux_engine_create(
 	struct dc_context *ctx,
 	uint32_t inst)
 {
@@ -911,7 +911,7 @@ static void destruct(struct dcn10_resource_pool *pool)
 
 	for (i = 0; i < pool->base.res_cap->num_ddc; i++) {
 		if (pool->base.engines[i] != NULL)
-			pool->base.engines[i]->funcs->destroy_engine(&pool->base.engines[i]);
+			dce110_engine_destroy(&pool->base.engines[i]);
 		if (pool->base.hw_i2cs[i] != NULL) {
 			kfree(pool->base.hw_i2cs[i]);
 			pool->base.hw_i2cs[i] = NULL;

drivers/gpu/drm/amd/display/dc/inc/core_types.h

@@ -146,7 +146,7 @@ struct resource_pool {
 	struct mpc *mpc;
 	struct pp_smu_funcs_rv *pp_smu;
 	struct pp_smu_display_requirement_rv pp_smu_req;
-	struct aux_engine *engines[MAX_PIPES];
+	struct dce_aux *engines[MAX_PIPES];
 	struct dce_i2c_hw *hw_i2cs[MAX_PIPES];
 	struct dce_i2c_sw *sw_i2cs[MAX_PIPES];
 	bool i2c_hw_buffer_in_use;