mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2026-07-06 04:01:20 +00:00
Kamlesh Gurudasani
e9f69b9fbf
This callback will be used to get number of possible parents if the underlying clock driver supports this option. Change-Id: I9459c878dd2155ff24b72cef6851180e105be432 Signed-off-by: Kamlesh Gurudasani <kamlesh@ti.com>
94 lines
1.9 KiB
C
94 lines
1.9 KiB
C
/*
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* Copyright (c) 2021, STMicroelectronics - All Rights Reserved
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* Author(s): Ludovic Barre, <ludovic.barre@st.com> for STMicroelectronics.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <errno.h>
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#include <stdbool.h>
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#include <drivers/clk.h>
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static const struct clk_ops *ops;
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int clk_enable(unsigned long id)
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{
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assert((ops != NULL) && (ops->enable != NULL));
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return ops->enable(id);
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}
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void clk_disable(unsigned long id)
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{
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assert((ops != NULL) && (ops->disable != NULL));
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ops->disable(id);
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}
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unsigned long clk_get_rate(unsigned long id)
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{
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assert((ops != NULL) && (ops->get_rate != NULL));
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return ops->get_rate(id);
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}
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int clk_set_rate(unsigned long id, unsigned long rate, unsigned long *orate)
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{
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unsigned long lrate;
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assert((ops != NULL) && (ops->set_rate != NULL));
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if (orate != NULL) {
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return ops->set_rate(id, rate, orate);
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}
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/* In case the caller is not interested in the output rate */
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return ops->set_rate(id, rate, &lrate);
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}
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int clk_get_possible_parents_num(unsigned long id)
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{
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assert((ops != NULL) && (ops->get_possible_parents_num != NULL));
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return ops->get_possible_parents_num(id);
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}
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int clk_get_parent(unsigned long id)
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{
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assert((ops != NULL) && (ops->get_parent != NULL));
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return ops->get_parent(id);
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}
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int clk_set_parent(unsigned long id, unsigned long parent_id)
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{
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assert((ops != NULL) && (ops->set_parent != NULL));
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return ops->set_parent(id, parent_id);
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}
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bool clk_is_enabled(unsigned long id)
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{
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assert((ops != NULL) && (ops->is_enabled != NULL));
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return ops->is_enabled(id);
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}
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/*
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* Initialize the clk. The fields in the provided clk
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* ops pointer must be valid.
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*/
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void clk_register(const struct clk_ops *ops_ptr)
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{
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assert((ops_ptr != NULL) &&
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(ops_ptr->enable != NULL) &&
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(ops_ptr->disable != NULL) &&
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(ops_ptr->get_rate != NULL) &&
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(ops_ptr->get_parent != NULL) &&
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(ops_ptr->is_enabled != NULL));
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ops = ops_ptr;
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}
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