b08c3ca4e9
There was lots of return true, and error checking that was never used in these paths. Just remove it all. v2: I missed one return true. Signed-off-by: Dave Airlie <airlied@redhat.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
119 lines
2.7 KiB
C
119 lines
2.7 KiB
C
/*
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* Copyright 2012-15 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: AMD
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*
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*/
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#include "dm_services.h"
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/*
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* Pre-requisites: headers required by header of this unit
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*/
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#include "include/i2caux_interface.h"
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#include "engine.h"
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/*
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* Header of this unit
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*/
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#include "i2c_engine.h"
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/*
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* Post-requisites: headers required by this unit
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*/
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/*
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* This unit
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*/
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#define FROM_ENGINE(ptr) \
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container_of((ptr), struct i2c_engine, base)
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bool dal_i2c_engine_acquire(
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struct engine *engine,
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struct ddc *ddc_handle)
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{
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struct i2c_engine *i2c_engine = FROM_ENGINE(engine);
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uint32_t counter = 0;
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bool result;
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do {
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result = i2c_engine->funcs->acquire_engine(
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i2c_engine, ddc_handle);
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if (result)
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break;
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/* i2c_engine is busy by VBios, lets wait and retry */
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udelay(10);
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++counter;
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} while (counter < 2);
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if (result) {
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if (!i2c_engine->funcs->setup_engine(i2c_engine)) {
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engine->funcs->release_engine(engine);
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result = false;
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}
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}
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return result;
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}
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bool dal_i2c_engine_setup_i2c_engine(
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struct i2c_engine *engine)
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{
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/* Derivative classes do not have to override this */
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return true;
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}
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void dal_i2c_engine_submit_channel_request(
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struct i2c_engine *engine,
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struct i2c_request_transaction_data *request)
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{
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}
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void dal_i2c_engine_process_channel_reply(
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struct i2c_engine *engine,
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struct i2c_reply_transaction_data *reply)
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{
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}
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void dal_i2c_engine_construct(
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struct i2c_engine *engine,
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struct dc_context *ctx)
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{
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dal_i2caux_construct_engine(&engine->base, ctx);
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engine->timeout_delay = 0;
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}
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void dal_i2c_engine_destruct(
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struct i2c_engine *engine)
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{
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dal_i2caux_destruct_engine(&engine->base);
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}
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