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/*
* Copyright 2012-16 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: AMD
*
*/
#ifndef _DCE_CLK_MGR_H_
#define _DCE_CLK_MGR_H_
#include "dc.h"
/* Starting DID for each range */
enum dentist_base_divider_id {
DENTIST_BASE_DID_1 = 0x08,
DENTIST_BASE_DID_2 = 0x40,
DENTIST_BASE_DID_3 = 0x60,
DENTIST_BASE_DID_4 = 0x7e,
DENTIST_MAX_DID = 0x7f
};
/* Starting point and step size for each divider range.*/
enum dentist_divider_range {
DENTIST_DIVIDER_RANGE_1_START = 8, /* 2.00 */
DENTIST_DIVIDER_RANGE_1_STEP = 1, /* 0.25 */
DENTIST_DIVIDER_RANGE_2_START = 64, /* 16.00 */
DENTIST_DIVIDER_RANGE_2_STEP = 2, /* 0.50 */
DENTIST_DIVIDER_RANGE_3_START = 128, /* 32.00 */
DENTIST_DIVIDER_RANGE_3_STEP = 4, /* 1.00 */
DENTIST_DIVIDER_RANGE_4_START = 248, /* 62.00 */
DENTIST_DIVIDER_RANGE_4_STEP = 264, /* 66.00 */
DENTIST_DIVIDER_RANGE_SCALE_FACTOR = 4
};
/* functions shared by other dce clk mgrs */
int dce_adjust_dp_ref_freq_for_ss(struct clk_mgr_internal *clk_mgr_dce, int dp_ref_clk_khz);
int dce_get_dp_ref_freq_khz(struct clk_mgr *clk_mgr_base);
enum dm_pp_clocks_state dce_get_required_clocks_state(
struct clk_mgr *clk_mgr_base,
struct dc_state *context);
uint32_t dce_get_max_pixel_clock_for_all_paths(struct dc_state *context);
void dce_clk_mgr_construct(
struct dc_context *ctx,
struct clk_mgr_internal *clk_mgr_dce);
void dce_clock_read_ss_info(struct clk_mgr_internal *dccg_dce);
int dce12_get_dp_ref_freq_khz(struct clk_mgr *dccg);
int dce_set_clock(
struct clk_mgr *clk_mgr_base,
int requested_clk_khz);
void dce_clk_mgr_destroy(struct clk_mgr **clk_mgr);
int dentist_get_divider_from_did(int did);
#endif /* _DCE_CLK_MGR_H_ */
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