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Date: Fri, 31 Jul 2015 10:03:56 -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
Subject: [PATCH 16/26] clk: qcom: 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.
Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>
---
drivers/clk/qcom/clk-pll.c | 8 ++------
drivers/clk/qcom/clk-rcg.c | 17 ++++++++---------
drivers/clk/qcom/clk-rcg2.c | 29 +++++++++++++----------------
drivers/clk/qcom/mmcc-msm8960.c | 10 ++++++----
4 files changed, 29 insertions(+), 35 deletions(-)
diff --git a/drivers/clk/qcom/clk-pll.c b/drivers/clk/qcom/clk-pll.c
index a34656bec648..5b940d629045 100644
--- a/drivers/clk/qcom/clk-pll.c
+++ b/drivers/clk/qcom/clk-pll.c
@@ -138,13 +138,9 @@ struct pll_freq_tbl *find_freq(const struct pll_freq_tbl *f, unsigned long rate)
static int
clk_pll_determine_rate(struct clk_hw *hw, struct clk_rate_request *req)
{
- struct clk *parent = __clk_get_parent(hw->clk);
struct clk_pll *pll = to_clk_pll(hw);
const struct pll_freq_tbl *f;
- req->best_parent_hw = __clk_get_hw(parent);
- req->best_parent_rate = __clk_get_rate(parent);
-
f = find_freq(pll->freq_tbl, req->rate);
if (!f)
req->rate = clk_pll_recalc_rate(hw, req->best_parent_rate);
@@ -198,7 +194,7 @@ static int wait_for_pll(struct clk_pll *pll)
u32 val;
int count;
int ret;
- const char *name = __clk_get_name(pll->clkr.hw.clk);
+ const char *name = clk_hw_get_name(&pll->clkr.hw);
/* Wait for pll to enable. */
for (count = 200; count > 0; count--) {
@@ -217,7 +213,7 @@ static int wait_for_pll(struct clk_pll *pll)
static int clk_pll_vote_enable(struct clk_hw *hw)
{
int ret;
- struct clk_pll *p = to_clk_pll(__clk_get_hw(__clk_get_parent(hw->clk)));
+ struct clk_pll *p = to_clk_pll(clk_hw_get_parent(hw));
ret = clk_enable_regmap(hw);
if (ret)
diff --git a/drivers/clk/qcom/clk-rcg.c b/drivers/clk/qcom/clk-rcg.c
index 070162abc2b6..fd8b3c68634f 100644
--- a/drivers/clk/qcom/clk-rcg.c
+++ b/drivers/clk/qcom/clk-rcg.c
@@ -59,7 +59,7 @@ static u8 clk_rcg_get_parent(struct clk_hw *hw)
err:
pr_debug("%s: Clock %s has invalid parent, using default.\n",
- __func__, __clk_get_name(hw->clk));
+ __func__, clk_hw_get_name(hw));
return 0;
}
@@ -95,7 +95,7 @@ static u8 clk_dyn_rcg_get_parent(struct clk_hw *hw)
err:
pr_debug("%s: Clock %s has invalid parent, using default.\n",
- __func__, __clk_get_name(hw->clk));
+ __func__, clk_hw_get_name(hw));
return 0;
}
@@ -409,7 +409,7 @@ static int _freq_tbl_determine_rate(struct clk_hw *hw, const struct freq_tbl *f,
const struct parent_map *parent_map)
{
unsigned long clk_flags, rate = req->rate;
- struct clk *p;
+ struct clk_hw *p;
int index;
f = qcom_find_freq(f, rate);
@@ -421,7 +421,7 @@ static int _freq_tbl_determine_rate(struct clk_hw *hw, const struct freq_tbl *f,
return index;
clk_flags = clk_hw_get_flags(hw);
- p = clk_get_parent_by_index(hw->clk, index);
+ p = clk_hw_get_parent_by_index(hw, index);
if (clk_flags & CLK_SET_RATE_PARENT) {
rate = rate * f->pre_div;
if (f->n) {
@@ -431,9 +431,9 @@ static int _freq_tbl_determine_rate(struct clk_hw *hw, const struct freq_tbl *f,
rate = tmp;
}
} else {
- rate = __clk_get_rate(p);
+ rate = clk_hw_get_rate(p);
}
- req->best_parent_hw = __clk_get_hw(p);
+ req->best_parent_hw = p;
req->best_parent_rate = rate;
req->rate = f->freq;
@@ -472,9 +472,8 @@ static int clk_rcg_bypass_determine_rate(struct clk_hw *hw,
struct clk *p;
int index = qcom_find_src_index(hw, rcg->s.parent_map, f->src);
- p = clk_get_parent_by_index(hw->clk, index);
- req->best_parent_hw = __clk_get_hw(p);
- req->best_parent_rate = __clk_round_rate(p, req->rate);
+ req->best_parent_hw = p = clk_hw_get_parent_by_index(hw, index);
+ req->best_parent_rate = clk_hw_round_rate(p, req->rate);
req->rate = req->best_parent_rate;
return 0;
diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c
index 98cf7192a61d..9aec1761fd29 100644
--- a/drivers/clk/qcom/clk-rcg2.c
+++ b/drivers/clk/qcom/clk-rcg2.c
@@ -80,7 +80,7 @@ static u8 clk_rcg2_get_parent(struct clk_hw *hw)
err:
pr_debug("%s: Clock %s has invalid parent, using default.\n",
- __func__, __clk_get_name(hw->clk));
+ __func__, clk_hw_get_name(hw));
return 0;
}
@@ -89,7 +89,7 @@ static int update_config(struct clk_rcg2 *rcg)
int count, ret;
u32 cmd;
struct clk_hw *hw = &rcg->clkr.hw;
- const char *name = __clk_get_name(hw->clk);
+ const char *name = clk_hw_get_name(hw);
ret = regmap_update_bits(rcg->clkr.regmap, rcg->cmd_rcgr + CMD_REG,
CMD_UPDATE, CMD_UPDATE);
@@ -180,7 +180,7 @@ static int _freq_tbl_determine_rate(struct clk_hw *hw,
const struct freq_tbl *f, struct clk_rate_request *req)
{
unsigned long clk_flags, rate = req->rate;
- struct clk *p;
+ struct clk_hw *p;
struct clk_rcg2 *rcg = to_clk_rcg2(hw);
int index;
@@ -193,7 +193,7 @@ static int _freq_tbl_determine_rate(struct clk_hw *hw,
return index;
clk_flags = clk_hw_get_flags(hw);
- p = clk_get_parent_by_index(hw->clk, index);
+ p = clk_hw_get_parent_by_index(hw, index);
if (clk_flags & CLK_SET_RATE_PARENT) {
if (f->pre_div) {
rate /= 2;
@@ -207,9 +207,9 @@ static int _freq_tbl_determine_rate(struct clk_hw *hw,
rate = tmp;
}
} else {
- rate = __clk_get_rate(p);
+ rate = clk_hw_get_rate(p);
}
- req->best_parent_hw = __clk_get_hw(p);
+ req->best_parent_hw = p;
req->best_parent_rate = rate;
req->rate = f->freq;
@@ -384,11 +384,10 @@ static int clk_edp_pixel_determine_rate(struct clk_hw *hw,
u32 mask = BIT(rcg->hid_width) - 1;
u32 hid_div;
int index = qcom_find_src_index(hw, rcg->parent_map, f->src);
- struct clk *p = clk_get_parent_by_index(hw->clk, index);
/* Force the correct parent */
- req->best_parent_hw = __clk_get_hw(p);
- req->best_parent_rate = __clk_get_rate(p);
+ req->best_parent_hw = clk_hw_get_parent_by_index(hw, index);
+ req->best_parent_rate = clk_hw_get_rate(req->best_parent_hw);
if (req->best_parent_rate == 810000000)
frac = frac_table_810m;
@@ -436,14 +435,13 @@ static int clk_byte_determine_rate(struct clk_hw *hw,
int index = qcom_find_src_index(hw, rcg->parent_map, f->src);
unsigned long parent_rate, div;
u32 mask = BIT(rcg->hid_width) - 1;
- struct clk *p;
+ struct clk_hw *p;
if (req->rate == 0)
return -EINVAL;
- p = clk_get_parent_by_index(hw->clk, index);
- req->best_parent_hw = __clk_get_hw(p);
- req->best_parent_rate = parent_rate = __clk_round_rate(p, req->rate);
+ req->best_parent_hw = p = clk_hw_get_parent_by_index(hw, index);
+ req->best_parent_rate = parent_rate = clk_hw_round_rate(p, req->rate);
div = DIV_ROUND_UP((2 * parent_rate), req->rate) - 1;
div = min_t(u32, div, mask);
@@ -504,14 +502,13 @@ static int clk_pixel_determine_rate(struct clk_hw *hw,
const struct freq_tbl *f = rcg->freq_tbl;
const struct frac_entry *frac = frac_table_pixel;
int index = qcom_find_src_index(hw, rcg->parent_map, f->src);
- struct clk *parent = clk_get_parent_by_index(hw->clk, index);
- req->best_parent_hw = __clk_get_hw(parent);
+ req->best_parent_hw = clk_hw_get_parent_by_index(hw, index);
for (; frac->num; frac++) {
request = (req->rate * frac->den) / frac->num;
- src_rate = __clk_round_rate(parent, request);
+ src_rate = clk_hw_round_rate(req->best_parent_hw, request);
if ((src_rate < (request - delta)) ||
(src_rate > (request + delta)))
continue;
diff --git a/drivers/clk/qcom/mmcc-msm8960.c b/drivers/clk/qcom/mmcc-msm8960.c
index 97e98278c21a..bad02aebf959 100644
--- a/drivers/clk/qcom/mmcc-msm8960.c
+++ b/drivers/clk/qcom/mmcc-msm8960.c
@@ -509,7 +509,6 @@ static int pix_rdi_set_parent(struct clk_hw *hw, u8 index)
int ret = 0;
u32 val;
struct clk_pix_rdi *rdi = to_clk_pix_rdi(hw);
- struct clk *clk = hw->clk;
int num_parents = clk_hw_get_num_parents(hw);
/*
@@ -521,7 +520,8 @@ static int pix_rdi_set_parent(struct clk_hw *hw, u8 index)
* needs to be on at what time.
*/
for (i = 0; i < num_parents; i++) {
- ret = clk_prepare_enable(clk_get_parent_by_index(clk, i));
+ struct clk_hw *p = clk_hw_get_parent_by_index(hw, i);
+ ret = clk_prepare_enable(p->clk);
if (ret)
goto err;
}
@@ -549,8 +549,10 @@ static int pix_rdi_set_parent(struct clk_hw *hw, u8 index)
udelay(1);
err:
- for (i--; i >= 0; i--)
- clk_disable_unprepare(clk_get_parent_by_index(clk, i));
+ for (i--; i >= 0; i--) {
+ struct clk_hw *p = clk_hw_get_parent_by_index(hw, i);
+ clk_disable_unprepare(p->clk);
+ }
return ret;
}
--
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a Linux Foundation Collaborative Project
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