drivers/gpu/drm/amd/display/dc/dcn301/dcn301_dccg.c

   1 /*
   2  * Copyright 2020 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: AMD
  23  *
  24  */
  25
  26 #include "reg_helper.h"
  27 #include "core_types.h"
  28 #include "dcn301_dccg.h"
  29
  30 #define TO_DCN_DCCG(dccg)\
  31         container_of(dccg, struct dcn_dccg, base)
  32
  33 #define REG(reg) \
  34         (dccg_dcn->regs->reg)
  35
  36 #undef FN
  37 #define FN(reg_name, field_name) \
  38         dccg_dcn->dccg_shift->field_name, dccg_dcn->dccg_mask->field_name
  39
  40 #define CTX \
  41         dccg_dcn->base.ctx
  42 #define DC_LOGGER \
  43         dccg->ctx->logger
  44
  45 static const struct dccg_funcs dccg301_funcs = {
  46         .update_dpp_dto = dccg2_update_dpp_dto,
  47         .get_dccg_ref_freq = dccg2_get_dccg_ref_freq,
  48         .dccg_init = dccg2_init
  49 };
  50
  51 struct dccg *dccg301_create(
  52         struct dc_context *ctx,
  53         const struct dccg_registers *regs,
  54         const struct dccg_shift *dccg_shift,
  55         const struct dccg_mask *dccg_mask)
  56 {
  57         struct dcn_dccg *dccg_dcn = kzalloc(sizeof(*dccg_dcn), GFP_KERNEL);
  58         struct dccg *base;
  59
  60         if (dccg_dcn == NULL) {
  61                 BREAK_TO_DEBUGGER();
  62                 return NULL;
  63         }
  64
  65         base = &dccg_dcn->base;
  66         base->ctx = ctx;
  67         base->funcs = &dccg301_funcs;
  68
  69         dccg_dcn->regs = regs;
  70         dccg_dcn->dccg_shift = dccg_shift;
  71         dccg_dcn->dccg_mask = dccg_mask;
  72
  73         return &dccg_dcn->base;
  74 }
  75