1 files changed, 0 insertions, 491 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/i2caux.c b/drivers/gpu/drm/amd/display/dc/i2caux/i2caux.c
deleted file mode 100644
index 1ad6e49102ff..000000000000
--- a/drivers/gpu/drm/amd/display/dc/i2caux/i2caux.c
+++ /dev/null
@@ -1,491 +0,0 @@
-/*
- * Copyright 2012-15 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 "dm_services.h"
-
-/*
- * Pre-requisites: headers required by header of this unit
- */
-#include "include/i2caux_interface.h"
-#include "dc_bios_types.h"
-
-/*
- * Header of this unit
- */
-
-#include "i2caux.h"
-
-/*
- * Post-requisites: headers required by this unit
- */
-
-#include "engine.h"
-#include "i2c_engine.h"
-#include "aux_engine.h"
-
-/*
- * This unit
- */
-
-#include "dce80/i2caux_dce80.h"
-
-#include "dce100/i2caux_dce100.h"
-
-#include "dce110/i2caux_dce110.h"
-
-#include "dce112/i2caux_dce112.h"
-
-#include "dce120/i2caux_dce120.h"
-
-#if defined(CONFIG_DRM_AMD_DC_DCN1_0)
-#include "dcn10/i2caux_dcn10.h"
-#endif
-
-#include "diagnostics/i2caux_diag.h"
-
-/*
- * @brief
- * Plain API, available publicly
- */
-
-struct i2caux *dal_i2caux_create(
-	struct dc_context *ctx)
-{
-	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) {
-		return dal_i2caux_diag_fpga_create(ctx);
-	}
-
-	switch (ctx->dce_version) {
-	case DCE_VERSION_8_0:
-	case DCE_VERSION_8_1:
-	case DCE_VERSION_8_3:
-		return dal_i2caux_dce80_create(ctx);
-	case DCE_VERSION_11_2:
-	case DCE_VERSION_11_22:
-		return dal_i2caux_dce112_create(ctx);
-	case DCE_VERSION_11_0:
-		return dal_i2caux_dce110_create(ctx);
-	case DCE_VERSION_10_0:
-		return dal_i2caux_dce100_create(ctx);
-	case DCE_VERSION_12_0:
-	case DCE_VERSION_12_1:
-		return dal_i2caux_dce120_create(ctx);
-#if defined(CONFIG_DRM_AMD_DC_DCN1_0)
-	case DCN_VERSION_1_0:
-		return dal_i2caux_dcn10_create(ctx);
-#endif
-
-#if defined(CONFIG_DRM_AMD_DC_DCN1_01)
-	case DCN_VERSION_1_01:
-		return dal_i2caux_dcn10_create(ctx);
-#endif
-	default:
-		BREAK_TO_DEBUGGER();
-		return NULL;
-	}
-}
-
-bool dal_i2caux_submit_i2c_command(
-	struct i2caux *i2caux,
-	struct ddc *ddc,
-	struct i2c_command *cmd)
-{
-	struct i2c_engine *engine;
-	uint8_t index_of_payload = 0;
-	bool result;
-
-	if (!ddc) {
-		BREAK_TO_DEBUGGER();
-		return false;
-	}
-
-	if (!cmd) {
-		BREAK_TO_DEBUGGER();
-		return false;
-	}
-
-	/*
-	 * default will be SW, however there is a feature flag in adapter
-	 * service that determines whether SW i2c_engine will be available or
-	 * not, if sw i2c is not available we will fallback to hw. This feature
-	 * flag is set to not creating sw i2c engine for every dce except dce80
-	 * currently
-	 */
-	switch (cmd->engine) {
-	case I2C_COMMAND_ENGINE_DEFAULT:
-	case I2C_COMMAND_ENGINE_SW:
-		/* try to acquire SW engine first,
-		 * acquire HW engine if SW engine not available */
-		engine = i2caux->funcs->acquire_i2c_sw_engine(i2caux, ddc);
-
-		if (!engine)
-			engine = i2caux->funcs->acquire_i2c_hw_engine(
-				i2caux, ddc);
-	break;
-	case I2C_COMMAND_ENGINE_HW:
-	default:
-		/* try to acquire HW engine first,
-		 * acquire SW engine if HW engine not available */
-		engine = i2caux->funcs->acquire_i2c_hw_engine(i2caux, ddc);
-
-		if (!engine)
-			engine = i2caux->funcs->acquire_i2c_sw_engine(
-				i2caux, ddc);
-	}
-
-	if (!engine)
-		return false;
-
-	engine->funcs->set_speed(engine, cmd->speed);
-
-	result = true;
-
-	while (index_of_payload < cmd->number_of_payloads) {
-		bool mot = (index_of_payload != cmd->number_of_payloads - 1);
-
-		struct i2c_payload *payload = cmd->payloads + index_of_payload;
-
-		struct i2caux_transaction_request request = { 0 };
-
-		request.operation = payload->write ?
-			I2CAUX_TRANSACTION_WRITE :
-			I2CAUX_TRANSACTION_READ;
-
-		request.payload.address_space =
-			I2CAUX_TRANSACTION_ADDRESS_SPACE_I2C;
-		request.payload.address = (payload->address << 1) |
-			!payload->write;
-		request.payload.length = payload->length;
-		request.payload.data = payload->data;
-
-		if (!engine->base.funcs->submit_request(
-			&engine->base, &request, mot)) {
-			result = false;
-			break;
-		}
-
-		++index_of_payload;
-	}
-
-	i2caux->funcs->release_engine(i2caux, &engine->base);
-
-	return result;
-}
-
-bool dal_i2caux_submit_aux_command(
-	struct i2caux *i2caux,
-	struct ddc *ddc,
-	struct aux_command *cmd)
-{
-	struct aux_engine *engine;
-	uint8_t index_of_payload = 0;
-	bool result;
-	bool mot;
-
-	if (!ddc) {
-		BREAK_TO_DEBUGGER();
-		return false;
-	}
-
-	if (!cmd) {
-		BREAK_TO_DEBUGGER();
-		return false;
-	}
-
-	engine = i2caux->funcs->acquire_aux_engine(i2caux, ddc);
-
-	if (!engine)
-		return false;
-
-	engine->delay = cmd->defer_delay;
-	engine->max_defer_write_retry = cmd->max_defer_write_retry;
-
-	result = true;
-
-	while (index_of_payload < cmd->number_of_payloads) {
-		struct aux_payload *payload = cmd->payloads + index_of_payload;
-		struct i2caux_transaction_request request = { 0 };
-
-		if (cmd->mot == I2C_MOT_UNDEF)
-			mot = (index_of_payload != cmd->number_of_payloads - 1);
-		else
-			mot = (cmd->mot == I2C_MOT_TRUE);
-
-		request.operation = payload->write ?
-			I2CAUX_TRANSACTION_WRITE :
-			I2CAUX_TRANSACTION_READ;
-
-		if (payload->i2c_over_aux) {
-			request.payload.address_space =
-				I2CAUX_TRANSACTION_ADDRESS_SPACE_I2C;
-
-			request.payload.address = (payload->address << 1) |
-				!payload->write;
-		} else {
-			request.payload.address_space =
-				I2CAUX_TRANSACTION_ADDRESS_SPACE_DPCD;
-
-			request.payload.address = payload->address;
-		}
-
-		request.payload.length = payload->length;
-		request.payload.data = payload->data;
-
-		if (!engine->base.funcs->submit_request(
-			&engine->base, &request, mot)) {
-			result = false;
-			break;
-		}
-
-		++index_of_payload;
-	}
-
-	i2caux->funcs->release_engine(i2caux, &engine->base);
-
-	return result;
-}
-
-static bool get_hw_supported_ddc_line(
-	struct ddc *ddc,
-	enum gpio_ddc_line *line)
-{
-	enum gpio_ddc_line line_found;
-
-	*line = GPIO_DDC_LINE_UNKNOWN;
-
-	if (!ddc) {
-		BREAK_TO_DEBUGGER();
-		return false;
-	}
-
-	if (!ddc->hw_info.hw_supported)
-		return false;
-
-	line_found = dal_ddc_get_line(ddc);
-
-	if (line_found >= GPIO_DDC_LINE_COUNT)
-		return false;
-
-	*line = line_found;
-
-	return true;
-}
-
-void dal_i2caux_configure_aux(
-	struct i2caux *i2caux,
-	struct ddc *ddc,
-	union aux_config cfg)
-{
-	struct aux_engine *engine =
-		i2caux->funcs->acquire_aux_engine(i2caux, ddc);
-
-	if (!engine)
-		return;
-
-	engine->funcs->configure(engine, cfg);
-
-	i2caux->funcs->release_engine(i2caux, &engine->base);
-}
-
-void dal_i2caux_destroy(
-	struct i2caux **i2caux)
-{
-	if (!i2caux || !*i2caux) {
-		BREAK_TO_DEBUGGER();
-		return;
-	}
-
-	(*i2caux)->funcs->destroy(i2caux);
-
-	*i2caux = NULL;
-}
-
-/*
- * @brief
- * An utility function used by 'struct i2caux' and its descendants
- */
-
-uint32_t dal_i2caux_get_reference_clock(
-		struct dc_bios *bios)
-{
-	struct dc_firmware_info info = { { 0 } };
-
-	if (bios->funcs->get_firmware_info(bios, &info) != BP_RESULT_OK)
-		return 0;
-
-	return info.pll_info.crystal_frequency;
-}
-
-/*
- * @brief
- * i2caux
- */
-
-enum {
-	/* following are expressed in KHz */
-	DEFAULT_I2C_SW_SPEED = 50,
-	DEFAULT_I2C_HW_SPEED = 50,
-
-	DEFAULT_I2C_SW_SPEED_100KHZ = 100,
-	DEFAULT_I2C_HW_SPEED_100KHZ = 100,
-
-	/* This is the timeout as defined in DP 1.2a,
-	 * 2.3.4 "Detailed uPacket TX AUX CH State Description". */
-	AUX_TIMEOUT_PERIOD = 400,
-
-	/* Ideally, the SW timeout should be just above 550usec
-	 * which is programmed in HW.
-	 * But the SW timeout of 600usec is not reliable,
-	 * because on some systems, delay_in_microseconds()
-	 * returns faster than it should.
-	 * EPR #379763: by trial-and-error on different systems,
-	 * 700usec is the minimum reliable SW timeout for polling
-	 * the AUX_SW_STATUS.AUX_SW_DONE bit.
-	 * This timeout expires *only* when there is
-	 * AUX Error or AUX Timeout conditions - not during normal operation.
-	 * During normal operation, AUX_SW_STATUS.AUX_SW_DONE bit is set
-	 * at most within ~240usec. That means,
-	 * increasing this timeout will not affect normal operation,
-	 * and we'll timeout after
-	 * SW_AUX_TIMEOUT_PERIOD_MULTIPLIER * AUX_TIMEOUT_PERIOD = 1600usec.
-	 * This timeout is especially important for
-	 * resume from S3 and CTS. */
-	SW_AUX_TIMEOUT_PERIOD_MULTIPLIER = 4
-};
-
-struct i2c_engine *dal_i2caux_acquire_i2c_sw_engine(
-	struct i2caux *i2caux,
-	struct ddc *ddc)
-{
-	enum gpio_ddc_line line;
-	struct i2c_engine *engine = NULL;
-
-	if (get_hw_supported_ddc_line(ddc, &line))
-		engine = i2caux->i2c_sw_engines[line];
-
-	if (!engine)
-		engine = i2caux->i2c_generic_sw_engine;
-
-	if (!engine)
-		return NULL;
-
-	if (!engine->base.funcs->acquire(&engine->base, ddc))
-		return NULL;
-
-	return engine;
-}
-
-struct aux_engine *dal_i2caux_acquire_aux_engine(
-	struct i2caux *i2caux,
-	struct ddc *ddc)
-{
-	enum gpio_ddc_line line;
-	struct aux_engine *engine;
-
-	if (!get_hw_supported_ddc_line(ddc, &line))
-		return NULL;
-
-	engine = i2caux->aux_engines[line];
-
-	if (!engine)
-		return NULL;
-
-	if (!engine->base.funcs->acquire(&engine->base, ddc))
-		return NULL;
-
-	return engine;
-}
-
-void dal_i2caux_release_engine(
-	struct i2caux *i2caux,
-	struct engine *engine)
-{
-	engine->funcs->release_engine(engine);
-
-	dal_ddc_close(engine->ddc);
-
-	engine->ddc = NULL;
-}
-
-void dal_i2caux_construct(
-	struct i2caux *i2caux,
-	struct dc_context *ctx)
-{
-	uint32_t i = 0;
-
-	i2caux->ctx = ctx;
-	do {
-		i2caux->i2c_sw_engines[i] = NULL;
-		i2caux->i2c_hw_engines[i] = NULL;
-		i2caux->aux_engines[i] = NULL;
-
-		++i;
-	} while (i < GPIO_DDC_LINE_COUNT);
-
-	i2caux->i2c_generic_sw_engine = NULL;
-	i2caux->i2c_generic_hw_engine = NULL;
-
-	i2caux->aux_timeout_period =
-		SW_AUX_TIMEOUT_PERIOD_MULTIPLIER * AUX_TIMEOUT_PERIOD;
-
-	if (ctx->dce_version >= DCE_VERSION_11_2) {
-		i2caux->default_i2c_hw_speed = DEFAULT_I2C_HW_SPEED_100KHZ;
-		i2caux->default_i2c_sw_speed = DEFAULT_I2C_SW_SPEED_100KHZ;
-	} else {
-		i2caux->default_i2c_hw_speed = DEFAULT_I2C_HW_SPEED;
-		i2caux->default_i2c_sw_speed = DEFAULT_I2C_SW_SPEED;
-	}
-}
-
-void dal_i2caux_destruct(
-	struct i2caux *i2caux)
-{
-	uint32_t i = 0;
-
-	if (i2caux->i2c_generic_hw_engine)
-		i2caux->i2c_generic_hw_engine->funcs->destroy(
-			&i2caux->i2c_generic_hw_engine);
-
-	if (i2caux->i2c_generic_sw_engine)
-		i2caux->i2c_generic_sw_engine->funcs->destroy(
-			&i2caux->i2c_generic_sw_engine);
-
-	do {
-		if (i2caux->aux_engines[i])
-			i2caux->aux_engines[i]->funcs->destroy(
-				&i2caux->aux_engines[i]);
-
-		if (i2caux->i2c_hw_engines[i])
-			i2caux->i2c_hw_engines[i]->funcs->destroy(
-				&i2caux->i2c_hw_engines[i]);
-
-		if (i2caux->i2c_sw_engines[i])
-			i2caux->i2c_sw_engines[i]->funcs->destroy(
-				&i2caux->i2c_sw_engines[i]);
-
-		++i;
-	} while (i < GPIO_DDC_LINE_COUNT);
-}
-