diff options
Diffstat (limited to 'drivers/clk/clk-si514.c')
| -rw-r--r-- | drivers/clk/clk-si514.c | 53 |
1 files changed, 22 insertions, 31 deletions
diff --git a/drivers/clk/clk-si514.c b/drivers/clk/clk-si514.c index 153b3a2b5857..f61590d70575 100644 --- a/drivers/clk/clk-si514.c +++ b/drivers/clk/clk-si514.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for Silicon Labs Si514 Programmable Oscillator * * Copyright (C) 2015 Topic Embedded Products * * Author: Mike Looijmans <mike.looijmans@topic.nl> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/clk-provider.h> @@ -236,20 +227,28 @@ static unsigned long si514_recalc_rate(struct clk_hw *hw, return si514_calc_rate(&settings); } -static long si514_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int si514_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_si514_muldiv settings; int err; - if (!rate) + if (!req->rate) { + req->rate = 0; + return 0; + } - err = si514_calc_muldiv(&settings, rate); - if (err) - return err; + err = si514_calc_muldiv(&settings, req->rate); + if (err) { + req->rate = err; - return si514_calc_rate(&settings); + return 0; + } + + req->rate = si514_calc_rate(&settings); + + return 0; } /* @@ -298,7 +297,7 @@ static const struct clk_ops si514_clk_ops = { .unprepare = si514_unprepare, .is_prepared = si514_is_prepared, .recalc_rate = si514_recalc_rate, - .round_rate = si514_round_rate, + .determine_rate = si514_determine_rate, .set_rate = si514_set_rate, }; @@ -330,14 +329,13 @@ static bool si514_regmap_is_writeable(struct device *dev, unsigned int reg) static const struct regmap_config si514_regmap_config = { .reg_bits = 8, .val_bits = 8, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, .max_register = SI514_REG_CONTROL, .writeable_reg = si514_regmap_is_writeable, .volatile_reg = si514_regmap_is_volatile, }; -static int si514_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int si514_probe(struct i2c_client *client) { struct clk_si514 *data; struct clk_init_data init; @@ -370,8 +368,8 @@ static int si514_probe(struct i2c_client *client, dev_err(&client->dev, "clock registration failed\n"); return err; } - err = of_clk_add_hw_provider(client->dev.of_node, of_clk_hw_simple_get, - &data->hw); + err = devm_of_clk_add_hw_provider(&client->dev, of_clk_hw_simple_get, + &data->hw); if (err) { dev_err(&client->dev, "unable to add clk provider\n"); return err; @@ -380,14 +378,8 @@ static int si514_probe(struct i2c_client *client, return 0; } -static int si514_remove(struct i2c_client *client) -{ - of_clk_del_provider(client->dev.of_node); - return 0; -} - static const struct i2c_device_id si514_id[] = { - { "si514", 0 }, + { "si514" }, { } }; MODULE_DEVICE_TABLE(i2c, si514_id); @@ -404,7 +396,6 @@ static struct i2c_driver si514_driver = { .of_match_table = clk_si514_of_match, }, .probe = si514_probe, - .remove = si514_remove, .id_table = si514_id, }; module_i2c_driver(si514_driver); |