119 lines
2.6 KiB
C
Executable file
119 lines
2.6 KiB
C
Executable file
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* (C) COPYRIGHT 2021 Samsung Electronics Inc. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the
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* GNU General Public License version 2 as published by the Free Software
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* Foundation, and any use by you of this program is subject to the terms
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* of such GNU licence.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you can access it online at
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* http://www.gnu.org/licenses/gpl-2.0.html.
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*/
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#include <soc/samsung/cal-if.h>
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#include <gpexbe_devicetree.h>
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#include <gpexbe_clock.h>
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#include <gpex_utils.h>
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#include <gpex_debug.h>
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struct _clock_backend_info {
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int boot_clock;
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int max_clock_limit;
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};
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static struct _clock_backend_info pm_info;
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static unsigned int cal_id;
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int gpexbe_clock_get_level_num(void)
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{
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return cal_dfs_get_lv_num(cal_id);
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}
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int gpexbe_clock_get_rate_asv_table(struct freq_volt *fv_array, int level_num)
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{
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int i;
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int ret = 0;
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struct dvfs_rate_volt rate_volt[48];
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ret = cal_dfs_get_rate_asv_table(cal_id, rate_volt);
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if (!ret) {
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/* TODO: print error. Also remove this size limit by using dynamic alloc */
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return ret;
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}
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for (i = 0; i < level_num; i++) {
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fv_array[i].freq = rate_volt[i].rate;
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fv_array[i].volt = rate_volt[i].volt;
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}
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return ret;
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}
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int gpexbe_clock_get_boot_freq()
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{
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return pm_info.boot_clock;
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}
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int gpexbe_clock_get_max_freq()
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{
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return pm_info.max_clock_limit;
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}
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int gpexbe_clock_set_rate(int clk)
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{
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int ret = 0;
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gpex_debug_new_record(HIST_CLOCK);
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gpex_debug_record_prev_data(HIST_CLOCK, gpexbe_clock_get_rate());
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ret = cal_dfs_set_rate(cal_id, clk);
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gpex_debug_record_time(HIST_CLOCK);
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gpex_debug_record_code(HIST_CLOCK, ret);
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gpex_debug_record_new_data(HIST_CLOCK, clk);
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if (ret)
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gpex_debug_incr_error_cnt(HIST_CLOCK);
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return ret;
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}
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int gpexbe_clock_get_rate()
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{
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return cal_dfs_get_rate(cal_id);
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}
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int gpexbe_clock_init()
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{
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cal_id = gpexbe_devicetree_get_int(g3d_cmu_cal_id);
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if (!cal_id) {
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/* TODO: print error cal id not found */
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return -1;
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}
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pm_info.boot_clock = cal_dfs_get_boot_freq(cal_id);
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pm_info.max_clock_limit = (int)cal_dfs_get_max_freq(cal_id);
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gpex_utils_get_exynos_context()->pm_info = &pm_info;
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return 0;
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}
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void gpexbe_clock_term()
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{
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cal_id = 0;
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pm_info.boot_clock = 0;
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pm_info.max_clock_limit = 0;
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}
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