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Date: Fri, 31 Jul 2015 10:03:53 -0700
From: Stephen Boyd <sboyd@...eaurora.org>
To: Mike Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...eaurora.org>
Cc: linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
Chao Xie <chao.xie@...vell.com>
Subject: [PATCH 13/26] clk: mmp: Convert to clk_hw based provider APIs
We're removing struct clk from the clk provider API, so switch
this code to using the clk_hw based provider APIs.
Cc: Chao Xie <chao.xie@...vell.com>
Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>
---
drivers/clk/mmp/clk-gate.c | 3 +--
drivers/clk/mmp/clk-mix.c | 35 ++++++++++++++++-------------------
2 files changed, 17 insertions(+), 21 deletions(-)
diff --git a/drivers/clk/mmp/clk-gate.c b/drivers/clk/mmp/clk-gate.c
index adbd9d64ded2..d20cd3431ac2 100644
--- a/drivers/clk/mmp/clk-gate.c
+++ b/drivers/clk/mmp/clk-gate.c
@@ -27,7 +27,6 @@
static int mmp_clk_gate_enable(struct clk_hw *hw)
{
struct mmp_clk_gate *gate = to_clk_mmp_gate(hw);
- struct clk *clk = hw->clk;
unsigned long flags = 0;
unsigned long rate;
u32 tmp;
@@ -44,7 +43,7 @@ static int mmp_clk_gate_enable(struct clk_hw *hw)
spin_unlock_irqrestore(gate->lock, flags);
if (gate->flags & MMP_CLK_GATE_NEED_DELAY) {
- rate = __clk_get_rate(clk);
+ rate = clk_hw_get_rate(hw);
/* Need delay 2 cycles. */
udelay(2000000/rate);
}
diff --git a/drivers/clk/mmp/clk-mix.c b/drivers/clk/mmp/clk-mix.c
index 8653e555c920..979e2cfc07c2 100644
--- a/drivers/clk/mmp/clk-mix.c
+++ b/drivers/clk/mmp/clk-mix.c
@@ -113,15 +113,15 @@ static void _filter_clk_table(struct mmp_clk_mix *mix,
{
int i;
struct mmp_clk_mix_clk_table *item;
- struct clk *parent, *clk;
+ struct clk_hw *parent, *hw;
unsigned long parent_rate;
- clk = mix->hw.clk;
+ hw = &mix->hw
for (i = 0; i < table_size; i++) {
item = &table[i];
- parent = clk_get_parent_by_index(clk, item->parent_index);
- parent_rate = __clk_get_rate(parent);
+ parent = clk_hw_get_parent_by_index(hw, item->parent_index);
+ parent_rate = clk_hw_get_rate(parent);
if (parent_rate % item->rate) {
item->valid = 0;
} else {
@@ -181,7 +181,7 @@ static int _set_rate(struct mmp_clk_mix *mix, u32 mux_val, u32 div_val,
if (timeout == 0) {
pr_err("%s:%s cannot do frequency change\n",
- __func__, __clk_get_name(mix->hw.clk));
+ __func__, clk_hw_get_name(&mix->hw));
ret = -EBUSY;
goto error;
}
@@ -206,16 +206,14 @@ static int mmp_clk_mix_determine_rate(struct clk_hw *hw,
{
struct mmp_clk_mix *mix = to_clk_mix(hw);
struct mmp_clk_mix_clk_table *item;
- struct clk *parent, *parent_best, *mix_clk;
+ struct clk_hw *parent, *parent_best;
unsigned long parent_rate, mix_rate, mix_rate_best, parent_rate_best;
unsigned long gap, gap_best;
u32 div_val_max;
unsigned int div;
int i, j;
- mix_clk = hw->clk;
- parent = NULL;
mix_rate_best = 0;
parent_rate_best = 0;
gap_best = ULONG_MAX;
@@ -226,9 +224,9 @@ static int mmp_clk_mix_determine_rate(struct clk_hw *hw,
item = &mix->table[i];
if (item->valid == 0)
continue;
- parent = clk_get_parent_by_index(mix_clk,
+ parent = clk_hw_get_parent_by_index(hw,
item->parent_index);
- parent_rate = __clk_get_rate(parent);
+ parent_rate = clk_hw_get_rate(parent);
mix_rate = parent_rate / item->divisor;
gap = abs(mix_rate - req->rate);
if (parent_best == NULL || gap < gap_best) {
@@ -242,8 +240,8 @@ static int mmp_clk_mix_determine_rate(struct clk_hw *hw,
}
} else {
for (i = 0; i < clk_hw_get_num_parents(hw); i++) {
- parent = clk_get_parent_by_index(mix_clk, i);
- parent_rate = __clk_get_rate(parent);
+ parent = clk_hw_get_parent_by_index(hw, i);
+ parent_rate = clk_hw_get_rate(parent);
div_val_max = _get_maxdiv(mix);
for (j = 0; j < div_val_max; j++) {
div = _get_div(mix, j);
@@ -266,7 +264,7 @@ found:
return -EINVAL;
req->best_parent_rate = parent_rate_best;
- req->best_parent_hw = __clk_get_hw(parent_best);
+ req->best_parent_hw = parent_best;
req->rate = mix_rate_best;
return 0;
@@ -382,20 +380,19 @@ static int mmp_clk_set_rate(struct clk_hw *hw, unsigned long rate,
struct mmp_clk_mix_clk_table *item;
unsigned long parent_rate;
unsigned int best_divisor;
- struct clk *mix_clk, *parent;
+ struct clk_hw *parent;
int i;
best_divisor = best_parent_rate / rate;
- mix_clk = hw->clk;
if (mix->table) {
for (i = 0; i < mix->table_size; i++) {
item = &mix->table[i];
if (item->valid == 0)
continue;
- parent = clk_get_parent_by_index(mix_clk,
+ parent = clk_hw_get_parent_by_index(hw,
item->parent_index);
- parent_rate = __clk_get_rate(parent);
+ parent_rate = clk_hw_get_rate(parent);
if (parent_rate == best_parent_rate
&& item->divisor == best_divisor)
break;
@@ -409,8 +406,8 @@ static int mmp_clk_set_rate(struct clk_hw *hw, unsigned long rate,
return -EINVAL;
} else {
for (i = 0; i < clk_hw_get_num_parents(hw); i++) {
- parent = clk_get_parent_by_index(mix_clk, i);
- parent_rate = __clk_get_rate(parent);
+ parent = clk_hw_get_parent_by_index(hw, i);
+ parent_rate = clk_hw_get_rate(parent);
if (parent_rate == best_parent_rate)
break;
}
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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