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path: root/drivers/clk/ti/apll.c
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Diffstat (limited to 'drivers/clk/ti/apll.c')
-rw-r--r--drivers/clk/ti/apll.c66
1 files changed, 30 insertions, 36 deletions
diff --git a/drivers/clk/ti/apll.c b/drivers/clk/ti/apll.c
index 06f486b3488c..43514e6f3b78 100644
--- a/drivers/clk/ti/apll.c
+++ b/drivers/clk/ti/apll.c
@@ -1,18 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* OMAP APLL clock support
*
* Copyright (C) 2013 Texas Instruments, Inc.
*
* J Keerthy <j-keerthy@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; 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.h>
@@ -133,17 +125,20 @@ static const struct clk_ops apll_ck_ops = {
.get_parent = &dra7_init_apll_parent,
};
-static void __init omap_clk_register_apll(struct clk_hw *hw,
+static void __init omap_clk_register_apll(void *user,
struct device_node *node)
{
+ struct clk_hw *hw = user;
struct clk_hw_omap *clk_hw = to_clk_hw_omap(hw);
struct dpll_data *ad = clk_hw->dpll_data;
+ const char *name;
struct clk *clk;
+ const struct clk_init_data *init = clk_hw->hw.init;
clk = of_clk_get(node, 0);
if (IS_ERR(clk)) {
- pr_debug("clk-ref for %s not ready, retry\n",
- node->name);
+ pr_debug("clk-ref for %pOFn not ready, retry\n",
+ node);
if (!ti_clk_retry_init(node, hw, omap_clk_register_apll))
return;
@@ -154,8 +149,8 @@ static void __init omap_clk_register_apll(struct clk_hw *hw,
clk = of_clk_get(node, 1);
if (IS_ERR(clk)) {
- pr_debug("clk-bypass for %s not ready, retry\n",
- node->name);
+ pr_debug("clk-bypass for %pOFn not ready, retry\n",
+ node);
if (!ti_clk_retry_init(node, hw, omap_clk_register_apll))
return;
@@ -164,18 +159,19 @@ static void __init omap_clk_register_apll(struct clk_hw *hw,
ad->clk_bypass = __clk_get_hw(clk);
- clk = ti_clk_register(NULL, &clk_hw->hw, node->name);
+ name = ti_dt_clk_name(node);
+ clk = of_ti_clk_register_omap_hw(node, &clk_hw->hw, name);
if (!IS_ERR(clk)) {
of_clk_add_provider(node, of_clk_src_simple_get, clk);
- kfree(clk_hw->hw.init->parent_names);
- kfree(clk_hw->hw.init);
+ kfree(init->parent_names);
+ kfree(init);
return;
}
cleanup:
kfree(clk_hw->dpll_data);
- kfree(clk_hw->hw.init->parent_names);
- kfree(clk_hw->hw.init);
+ kfree(init->parent_names);
+ kfree(init);
kfree(clk_hw);
}
@@ -196,16 +192,16 @@ static void __init of_dra7_apll_setup(struct device_node *node)
clk_hw->dpll_data = ad;
clk_hw->hw.init = init;
- init->name = node->name;
+ init->name = ti_dt_clk_name(node);
init->ops = &apll_ck_ops;
init->num_parents = of_clk_get_parent_count(node);
if (init->num_parents < 1) {
- pr_err("dra7 apll %s must have parent(s)\n", node->name);
+ pr_err("dra7 apll %pOFn must have parent(s)\n", node);
goto cleanup;
}
- parent_names = kzalloc(sizeof(char *) * init->num_parents, GFP_KERNEL);
+ parent_names = kcalloc(init->num_parents, sizeof(char *), GFP_KERNEL);
if (!parent_names)
goto cleanup;
@@ -304,7 +300,7 @@ static void omap2_apll_disable(struct clk_hw *hw)
ti_clk_ll_ops->clk_writel(v, &ad->control_reg);
}
-static struct clk_ops omap2_apll_ops = {
+static const struct clk_ops omap2_apll_ops = {
.enable = &omap2_apll_enable,
.disable = &omap2_apll_disable,
.is_enabled = &omap2_apll_is_enabled,
@@ -345,6 +341,7 @@ static void __init of_omap2_apll_setup(struct device_node *node)
struct dpll_data *ad = NULL;
struct clk_hw_omap *clk_hw = NULL;
struct clk_init_data *init = NULL;
+ const char *name;
struct clk *clk;
const char *parent_name;
u32 val;
@@ -360,12 +357,13 @@ static void __init of_omap2_apll_setup(struct device_node *node)
clk_hw->dpll_data = ad;
clk_hw->hw.init = init;
init->ops = &omap2_apll_ops;
- init->name = node->name;
+ name = ti_dt_clk_name(node);
+ init->name = name;
clk_hw->ops = &omap2_apll_hwops;
init->num_parents = of_clk_get_parent_count(node);
if (init->num_parents != 1) {
- pr_err("%s must have one parent\n", node->name);
+ pr_err("%pOFn must have one parent\n", node);
goto cleanup;
}
@@ -373,22 +371,17 @@ static void __init of_omap2_apll_setup(struct device_node *node)
init->parent_names = &parent_name;
if (of_property_read_u32(node, "ti,clock-frequency", &val)) {
- pr_err("%s missing clock-frequency\n", node->name);
+ pr_err("%pOFn missing clock-frequency\n", node);
goto cleanup;
}
clk_hw->fixed_rate = val;
- if (of_property_read_u32(node, "ti,bit-shift", &val)) {
- pr_err("%s missing bit-shift\n", node->name);
- goto cleanup;
- }
-
- clk_hw->enable_bit = val;
- ad->enable_mask = 0x3 << val;
- ad->autoidle_mask = 0x3 << val;
+ clk_hw->enable_bit = ti_clk_get_legacy_bit_shift(node);
+ ad->enable_mask = 0x3 << clk_hw->enable_bit;
+ ad->autoidle_mask = 0x3 << clk_hw->enable_bit;
if (of_property_read_u32(node, "ti,idlest-shift", &val)) {
- pr_err("%s missing idlest-shift\n", node->name);
+ pr_err("%pOFn missing idlest-shift\n", node);
goto cleanup;
}
@@ -401,7 +394,8 @@ static void __init of_omap2_apll_setup(struct device_node *node)
if (ret)
goto cleanup;
- clk = clk_register(NULL, &clk_hw->hw);
+ name = ti_dt_clk_name(node);
+ clk = of_ti_clk_register_omap_hw(node, &clk_hw->hw, name);
if (!IS_ERR(clk)) {
of_clk_add_provider(node, of_clk_src_simple_get, clk);
kfree(init);