506508e1cd
Cleanup unused functions from all modules in sde driver. Change-Id: Ia0e72ab9c281b4200a63ce35bf184e83fe1db5d2 Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>
72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2017-2019, 2021, The Linux Foundation. All rights reserved.
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*/
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#define pr_fmt(fmt) "[drm:%s:%d] " fmt, __func__, __LINE__
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#include <linux/mutex.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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#include "sde_hw_mdss.h"
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#include "sde_hw_blk.h"
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/* Serialization lock for sde_hw_blk_list */
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static DEFINE_MUTEX(sde_hw_blk_lock);
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/* List of all hw block objects */
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static LIST_HEAD(sde_hw_blk_list);
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/**
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* sde_hw_blk_init - initialize hw block object
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* @type: hw block type - enum sde_hw_blk_type
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* @id: instance id of the hw block
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* @ops: Pointer to block operations
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* return: 0 if success; error code otherwise
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*/
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int sde_hw_blk_init(struct sde_hw_blk *hw_blk, u32 type, int id,
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struct sde_hw_blk_ops *ops)
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{
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if (!hw_blk) {
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pr_err("invalid parameters\n");
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return -EINVAL;
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}
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INIT_LIST_HEAD(&hw_blk->list);
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hw_blk->type = type;
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hw_blk->id = id;
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atomic_set(&hw_blk->refcount, 0);
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if (ops)
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hw_blk->ops = *ops;
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mutex_lock(&sde_hw_blk_lock);
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list_add(&hw_blk->list, &sde_hw_blk_list);
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mutex_unlock(&sde_hw_blk_lock);
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return 0;
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}
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/**
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* sde_hw_blk_destroy - destroy hw block object.
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* @hw_blk: pointer to hw block object
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* return: none
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*/
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void sde_hw_blk_destroy(struct sde_hw_blk *hw_blk)
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{
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if (!hw_blk) {
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pr_err("invalid parameters\n");
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return;
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}
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if (atomic_read(&hw_blk->refcount))
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pr_err("hw_blk:%d.%d invalid refcount\n", hw_blk->type,
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hw_blk->id);
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mutex_lock(&sde_hw_blk_lock);
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list_del(&hw_blk->list);
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mutex_unlock(&sde_hw_blk_lock);
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}
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