linux/drivers/gpu/drm/amd/display/dc/dccg/dcn401/dcn401_dccg.c

/*
 * Copyright 2023 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
 *
 */

#include "reg_helper.h"
#include "core_types.h"
#include "dcn401_dccg.h"
#include "dcn31/dcn31_dccg.h"

/*
#include "dmub_common.h"
#include "dmcub_reg_access_helper.h"

#include "dmub401_common.h"
#include "dmub401_regs.h"
#include "dmub401_dccg.h"
*/

#define TO_DCN_DCCG(dccg) …

#define REG(reg) …

#undef FN
#define FN(reg_name, field_name) …

#define CTX …
#define DC_LOGGER …

static void dcn401_set_dppclk_enable(struct dccg *dccg,
				 uint32_t dpp_inst, uint32_t enable)
{ … }
void dccg401_update_dpp_dto(struct dccg *dccg, int dpp_inst, int req_dppclk)
{ … }

/* This function is a workaround for writing to OTG_PIXEL_RATE_DIV
 * without the probability of causing a DIG FIFO error.
 */
static void dccg401_wait_for_dentist_change_done(
	struct dccg *dccg)
{ … }

static void dccg401_get_pixel_rate_div(
		struct dccg *dccg,
		uint32_t otg_inst,
		uint32_t *tmds_div,
		uint32_t *dp_dto_int)
{ … }

static void dccg401_set_pixel_rate_div(
		struct dccg *dccg,
		uint32_t otg_inst,
		enum pixel_rate_div tmds_div,
		enum pixel_rate_div unused)
{ … }


static void dccg401_set_dtbclk_p_src(
		struct dccg *dccg,
		enum streamclk_source src,
		uint32_t otg_inst)
{ … }

void dccg401_set_physymclk(
		struct dccg *dccg,
		int phy_inst,
		enum physymclk_clock_source clk_src,
		bool force_enable)
{ … }

static void dccg401_get_dccg_ref_freq(struct dccg *dccg,
		unsigned int xtalin_freq_inKhz,
		unsigned int *dccg_ref_freq_inKhz)
{ … }

static void dccg401_otg_add_pixel(struct dccg *dccg,
		uint32_t otg_inst)
{ … }

static void dccg401_otg_drop_pixel(struct dccg *dccg,
		uint32_t otg_inst)
{ … }

static void dccg401_enable_symclk32_le(
		struct dccg *dccg,
		int hpo_le_inst,
		enum phyd32clk_clock_source phyd32clk)
{ … }

static void dccg401_disable_symclk32_le(
		struct dccg *dccg,
		int hpo_le_inst)
{ … }

static void dccg401_enable_dpstreamclk(struct dccg *dccg, int otg_inst, int dp_hpo_inst)
{ … }

static void dccg401_disable_dpstreamclk(struct dccg *dccg, int dp_hpo_inst)
{ … }

static void dccg401_set_dpstreamclk(
		struct dccg *dccg,
		enum streamclk_source src,
		int otg_inst,
		int dp_hpo_inst)
{ … }

static void dccg401_set_dp_dto(
		struct dccg *dccg,
		const struct dp_dto_params *params)
{ … }

void dccg401_init(struct dccg *dccg)
{ … }

static void dccg401_set_dto_dscclk(struct dccg *dccg, uint32_t inst, bool enable)
{ … }

static void dccg401_set_ref_dscclk(struct dccg *dccg,
				uint32_t dsc_inst)
{ … }

static void dccg401_enable_symclk_se(struct dccg *dccg, uint32_t stream_enc_inst, uint32_t link_enc_inst)
{ … }

/*get other front end connected to this backend*/
static uint8_t dccg401_get_number_enabled_symclk_fe_connected_to_be(struct dccg *dccg, uint32_t link_enc_inst)
{ … }

static void dccg401_disable_symclk_se(struct dccg *dccg, uint32_t stream_enc_inst, uint32_t link_enc_inst)
{ … }

static const struct dccg_funcs dccg401_funcs = …;

struct dccg *dccg401_create(
	struct dc_context *ctx,
	const struct dccg_registers *regs,
	const struct dccg_shift *dccg_shift,
	const struct dccg_mask *dccg_mask)
{ … }