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path: root/drivers/clk/spear/clk-vco-pll.c
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Diffstat (limited to 'drivers/clk/spear/clk-vco-pll.c')
-rw-r--r--drivers/clk/spear/clk-vco-pll.c46
1 files changed, 22 insertions, 24 deletions
diff --git a/drivers/clk/spear/clk-vco-pll.c b/drivers/clk/spear/clk-vco-pll.c
index 1b9b65bca51e..723a6eb67754 100644
--- a/drivers/clk/spear/clk-vco-pll.c
+++ b/drivers/clk/spear/clk-vco-pll.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.linux@gmail.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
+ * Viresh Kumar <vireshk@kernel.org>
*
* VCO-PLL clock implementation
*/
@@ -87,7 +84,7 @@ static long clk_pll_round_rate_index(struct clk_hw *hw, unsigned long drate,
struct clk_pll *pll = to_clk_pll(hw);
unsigned long prev_rate, vco_prev_rate, rate = 0;
unsigned long vco_parent_rate =
- __clk_get_rate(__clk_get_parent(__clk_get_parent(hw->clk)));
+ clk_hw_get_rate(clk_hw_get_parent(clk_hw_get_parent(hw)));
if (!prate) {
pr_err("%s: prate is must for pll clk\n", __func__);
@@ -113,12 +110,15 @@ static long clk_pll_round_rate_index(struct clk_hw *hw, unsigned long drate,
return rate;
}
-static long clk_pll_round_rate(struct clk_hw *hw, unsigned long drate,
- unsigned long *prate)
+static int clk_pll_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
int unused;
- return clk_pll_round_rate_index(hw, drate, prate, &unused);
+ req->rate = clk_pll_round_rate_index(hw, req->rate,
+ &req->best_parent_rate, &unused);
+
+ return 0;
}
static unsigned long clk_pll_recalc_rate(struct clk_hw *hw, unsigned long
@@ -147,7 +147,7 @@ static int clk_pll_set_rate(struct clk_hw *hw, unsigned long drate,
struct clk_pll *pll = to_clk_pll(hw);
struct pll_rate_tbl *rtbl = pll->vco->rtbl;
unsigned long flags = 0, val;
- int uninitialized_var(i);
+ int i = 0;
clk_pll_round_rate_index(hw, drate, NULL, &i);
@@ -165,9 +165,9 @@ static int clk_pll_set_rate(struct clk_hw *hw, unsigned long drate,
return 0;
}
-static struct clk_ops clk_pll_ops = {
+static const struct clk_ops clk_pll_ops = {
.recalc_rate = clk_pll_recalc_rate,
- .round_rate = clk_pll_round_rate,
+ .determine_rate = clk_pll_determine_rate,
.set_rate = clk_pll_set_rate,
};
@@ -179,14 +179,16 @@ static inline unsigned long vco_calc_rate(struct clk_hw *hw,
return pll_calc_rate(vco->rtbl, prate, index, NULL);
}
-static long clk_vco_round_rate(struct clk_hw *hw, unsigned long drate,
- unsigned long *prate)
+static int clk_vco_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
struct clk_vco *vco = to_clk_vco(hw);
int unused;
- return clk_round_rate_index(hw, drate, *prate, vco_calc_rate,
- vco->rtbl_cnt, &unused);
+ req->rate = clk_round_rate_index(hw, req->rate, req->best_parent_rate,
+ vco_calc_rate, vco->rtbl_cnt, &unused);
+
+ return 0;
}
static unsigned long clk_vco_recalc_rate(struct clk_hw *hw,
@@ -266,9 +268,9 @@ static int clk_vco_set_rate(struct clk_hw *hw, unsigned long drate,
return 0;
}
-static struct clk_ops clk_vco_ops = {
+static const struct clk_ops clk_vco_ops = {
.recalc_rate = clk_vco_recalc_rate,
- .round_rate = clk_vco_round_rate,
+ .determine_rate = clk_vco_determine_rate,
.set_rate = clk_vco_set_rate,
};
@@ -292,16 +294,12 @@ struct clk *clk_register_vco_pll(const char *vco_name, const char *pll_name,
}
vco = kzalloc(sizeof(*vco), GFP_KERNEL);
- if (!vco) {
- pr_err("could not allocate vco clk\n");
+ if (!vco)
return ERR_PTR(-ENOMEM);
- }
pll = kzalloc(sizeof(*pll), GFP_KERNEL);
- if (!pll) {
- pr_err("could not allocate pll clk\n");
+ if (!pll)
goto free_vco;
- }
/* struct clk_vco assignments */
vco->mode_reg = mode_reg;