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clk: sunxi-ng: Pass the parent and a pointer to the clocks round rate

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The clocks might need to modify their parent clocks. In order to make that
possible, give them access to the parent clock being evaluated, and to a
pointer to the parent rate so that they can modify it if needed.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
This commit is contained in:
Maxime Ripard 2017-05-17 09:40:31 +02:00
parent 22833a9165
commit 10a8d9b906
6 changed files with 25 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/clk/sunxi-ng/ccu_div.c
View File

@ -14,7 +14,8 @@
#include "ccu_div.h"
static unsigned long ccu_div_round_rate(struct ccu_mux_internal *mux,
unsigned long parent_rate,
struct clk_hw *parent,
unsigned long *parent_rate,
unsigned long rate,
void *data)
{
@ -26,10 +27,10 @@ static unsigned long ccu_div_round_rate(struct ccu_mux_internal *mux,
* several parents, while we might be called to evaluate
* several different parents.
*/
val = divider_get_val(rate, parent_rate, cd->div.table, cd->div.width,
val = divider_get_val(rate, *parent_rate, cd->div.table, cd->div.width,
cd->div.flags);
return divider_recalc_rate(&cd->common.hw, parent_rate, val,
return divider_recalc_rate(&cd->common.hw, *parent_rate, val,
cd->div.table, cd->div.flags);
}

7
drivers/clk/sunxi-ng/ccu_mp.c
View File

@ -41,7 +41,8 @@ static void ccu_mp_find_best(unsigned long parent, unsigned long rate,
}
static unsigned long ccu_mp_round_rate(struct ccu_mux_internal *mux,
unsigned long parent_rate,
struct clk_hw *hw,
unsigned long *parent_rate,
unsigned long rate,
void *data)
{
@ -52,9 +53,9 @@ static unsigned long ccu_mp_round_rate(struct ccu_mux_internal *mux,
max_m = cmp->m.max ?: 1 << cmp->m.width;
max_p = cmp->p.max ?: 1 << ((1 << cmp->p.width) - 1);
ccu_mp_find_best(parent_rate, rate, max_m, max_p, &m, &p);
ccu_mp_find_best(*parent_rate, rate, max_m, max_p, &m, &p);
return parent_rate / p / m;
return *parent_rate / p / m;
}
static void ccu_mp_disable(struct clk_hw *hw)

11
drivers/clk/sunxi-ng/ccu_mult.c
View File

@ -33,9 +33,10 @@ static void ccu_mult_find_best(unsigned long parent, unsigned long rate,
}
static unsigned long ccu_mult_round_rate(struct ccu_mux_internal *mux,
unsigned long parent_rate,
unsigned long rate,
void *data)
struct clk_hw *parent,
unsigned long *parent_rate,
unsigned long rate,
void *data)
{
struct ccu_mult *cm = data;
struct _ccu_mult _cm;
@ -47,9 +48,9 @@ static unsigned long ccu_mult_round_rate(struct ccu_mux_internal *mux,
else
_cm.max = (1 << cm->mult.width) + cm->mult.offset - 1;
ccu_mult_find_best(parent_rate, rate, &_cm);
ccu_mult_find_best(*parent_rate, rate, &_cm);
return parent_rate * _cm.mult;
return *parent_rate * _cm.mult;
}
static void ccu_mult_disable(struct clk_hw *hw)

8
drivers/clk/sunxi-ng/ccu_mux.c
View File

@ -61,7 +61,8 @@ int ccu_mux_helper_determine_rate(struct ccu_common *common,
struct ccu_mux_internal *cm,
struct clk_rate_request *req,
unsigned long (*round)(struct ccu_mux_internal *,
unsigned long,
struct clk_hw *,
unsigned long *,
unsigned long,
void *),
void *data)
@ -80,7 +81,8 @@ int ccu_mux_helper_determine_rate(struct ccu_common *common,
ccu_mux_helper_adjust_parent_for_prediv(common, cm, -1,
&adj_parent_rate);
best_rate = round(cm, adj_parent_rate, req->rate, data);
best_rate = round(cm, best_parent, &adj_parent_rate,
req->rate, data);
goto out;
}
@ -109,7 +111,7 @@ int ccu_mux_helper_determine_rate(struct ccu_common *common,
ccu_mux_helper_adjust_parent_for_prediv(common, cm, i,
&adj_parent_rate);
tmp_rate = round(cm, adj_parent_rate, req->rate, data);
tmp_rate = round(cm, parent, &adj_parent_rate, req->rate, data);
if (tmp_rate == req->rate) {
best_parent = parent;
best_parent_rate = parent_rate;

3
drivers/clk/sunxi-ng/ccu_mux.h
View File

@ -86,7 +86,8 @@ int ccu_mux_helper_determine_rate(struct ccu_common *common,
struct ccu_mux_internal *cm,
struct clk_rate_request *req,
unsigned long (*round)(struct ccu_mux_internal *,
unsigned long,
struct clk_hw *,
unsigned long *,
unsigned long,
void *),
void *data);

7
drivers/clk/sunxi-ng/ccu_nkm.c
View File

@ -102,7 +102,8 @@ static unsigned long ccu_nkm_recalc_rate(struct clk_hw *hw,
}
static unsigned long ccu_nkm_round_rate(struct ccu_mux_internal *mux,
unsigned long parent_rate,
struct clk_hw *hw,
unsigned long *parent_rate,
unsigned long rate,
void *data)
{
@ -116,9 +117,9 @@ static unsigned long ccu_nkm_round_rate(struct ccu_mux_internal *mux,
_nkm.min_m = 1;
_nkm.max_m = nkm->m.max ?: 1 << nkm->m.width;
ccu_nkm_find_best(parent_rate, rate, &_nkm);
ccu_nkm_find_best(*parent_rate, rate, &_nkm);
return parent_rate * _nkm.n * _nkm.k / _nkm.m;
return *parent_rate * _nkm.n * _nkm.k / _nkm.m;
}
static int ccu_nkm_determine_rate(struct clk_hw *hw,