diff options
Diffstat (limited to 'drivers/clk/clk-scpi.c')
| -rw-r--r-- | drivers/clk/clk-scpi.c | 43 |
1 files changed, 16 insertions, 27 deletions
diff --git a/drivers/clk/clk-scpi.c b/drivers/clk/clk-scpi.c index 25854722810e..0b592de7bdb2 100644 --- a/drivers/clk/clk-scpi.c +++ b/drivers/clk/clk-scpi.c @@ -1,19 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * System Control and Power Interface (SCPI) Protocol based clock driver * * Copyright (C) 2015 ARM Ltd. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope 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. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. */ #include <linux/clk-provider.h> @@ -21,7 +10,6 @@ #include <linux/err.h> #include <linux/of.h> #include <linux/module.h> -#include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/scpi_protocol.h> @@ -44,8 +32,8 @@ static unsigned long scpi_clk_recalc_rate(struct clk_hw *hw, return clk->scpi_ops->clk_get_val(clk->id); } -static long scpi_clk_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int scpi_clk_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { /* * We can't figure out what rate it will be, so just return the @@ -53,7 +41,7 @@ static long scpi_clk_round_rate(struct clk_hw *hw, unsigned long rate, * after the rate is set and we'll know what rate the clock is * running at then. */ - return rate; + return 0; } static int scpi_clk_set_rate(struct clk_hw *hw, unsigned long rate, @@ -66,7 +54,7 @@ static int scpi_clk_set_rate(struct clk_hw *hw, unsigned long rate, static const struct clk_ops scpi_clk_ops = { .recalc_rate = scpi_clk_recalc_rate, - .round_rate = scpi_clk_round_rate, + .determine_rate = scpi_clk_determine_rate, .set_rate = scpi_clk_set_rate, }; @@ -104,12 +92,14 @@ static unsigned long scpi_dvfs_recalc_rate(struct clk_hw *hw, return opp->freq; } -static long scpi_dvfs_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int scpi_dvfs_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct scpi_clk *clk = to_scpi_clk(hw); - return __scpi_dvfs_round_rate(clk, rate); + req->rate = __scpi_dvfs_round_rate(clk, req->rate); + + return 0; } static int __scpi_find_dvfs_index(struct scpi_clk *clk, unsigned long rate) @@ -136,11 +126,11 @@ static int scpi_dvfs_set_rate(struct clk_hw *hw, unsigned long rate, static const struct clk_ops scpi_dvfs_ops = { .recalc_rate = scpi_dvfs_recalc_rate, - .round_rate = scpi_dvfs_round_rate, + .determine_rate = scpi_dvfs_determine_rate, .set_rate = scpi_dvfs_set_rate, }; -static const struct of_device_id scpi_clk_match[] = { +static const struct of_device_id scpi_clk_match[] __maybe_unused = { { .compatible = "arm,scpi-dvfs-clocks", .data = &scpi_dvfs_ops, }, { .compatible = "arm,scpi-variable-clocks", .data = &scpi_clk_ops, }, {} @@ -207,7 +197,7 @@ static int scpi_clk_add(struct device *dev, struct device_node *np, count = of_property_count_strings(np, "clock-output-names"); if (count < 0) { - dev_err(dev, "%s: invalid clock output count\n", np->name); + dev_err(dev, "%pOFn: invalid clock output count\n", np); return -EINVAL; } @@ -232,13 +222,13 @@ static int scpi_clk_add(struct device *dev, struct device_node *np, if (of_property_read_string_index(np, "clock-output-names", idx, &name)) { - dev_err(dev, "invalid clock name @ %s\n", np->name); + dev_err(dev, "invalid clock name @ %pOFn\n", np); return -EINVAL; } if (of_property_read_u32_index(np, "clock-indices", idx, &val)) { - dev_err(dev, "invalid clock index @ %s\n", np->name); + dev_err(dev, "invalid clock index @ %pOFn\n", np); return -EINVAL; } @@ -257,7 +247,7 @@ static int scpi_clk_add(struct device *dev, struct device_node *np, return of_clk_add_hw_provider(np, scpi_of_clk_src_get, clk_data); } -static int scpi_clocks_remove(struct platform_device *pdev) +static void scpi_clocks_remove(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct device_node *child, *np = dev->of_node; @@ -269,7 +259,6 @@ static int scpi_clocks_remove(struct platform_device *pdev) for_each_available_child_of_node(np, child) of_clk_del_provider(np); - return 0; } static int scpi_clocks_probe(struct platform_device *pdev) |