2 * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 #include <linux/clk.h>
18 #include <linux/clk-provider.h>
20 #include <linux/clk/tegra.h>
24 /* Global data of Tegra CPU CAR ops */
25 struct tegra_cpu_car_ops
*tegra_cpu_car_ops
;
27 void __init
tegra_init_dup_clks(struct tegra_clk_duplicate
*dup_list
,
28 struct clk
*clks
[], int clk_max
)
32 for (; dup_list
->clk_id
< clk_max
; dup_list
++) {
33 clk
= clks
[dup_list
->clk_id
];
34 dup_list
->lookup
.clk
= clk
;
35 clkdev_add(&dup_list
->lookup
);
39 void __init
tegra_init_from_table(struct tegra_clk_init_table
*tbl
,
40 struct clk
*clks
[], int clk_max
)
44 for (; tbl
->clk_id
< clk_max
; tbl
++) {
45 clk
= clks
[tbl
->clk_id
];
46 if (IS_ERR_OR_NULL(clk
))
49 if (tbl
->parent_id
< clk_max
) {
50 struct clk
*parent
= clks
[tbl
->parent_id
];
51 if (clk_set_parent(clk
, parent
)) {
52 pr_err("%s: Failed to set parent %s of %s\n",
53 __func__
, __clk_get_name(parent
),
60 if (clk_set_rate(clk
, tbl
->rate
)) {
61 pr_err("%s: Failed to set rate %lu of %s\n",
68 if (clk_prepare_enable(clk
)) {
69 pr_err("%s: Failed to enable %s\n", __func__
,
76 static const struct of_device_id tegra_dt_clk_match
[] = {
77 { .compatible
= "nvidia,tegra20-car", .data
= tegra20_clock_init
},
78 { .compatible
= "nvidia,tegra30-car", .data
= tegra30_clock_init
},
82 void __init
tegra_clocks_init(void)
84 of_clk_init(tegra_dt_clk_match
);