Commit 9a1683d1dd14d6ed35d2884c6b79ff12fc6bef39

Authored by Paul Mundt
1 parent ed10b490ea

sh: clkfwk: Kill off unused clk_set_rate_ex().

With the refactoring of the SH7722 clock framework some time ago this
abstraction has become unecessary. Kill it off before anyone else gets
the bright idea to start using it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Showing 4 changed files with 3 additions and 75 deletions Side-by-side Diff

Documentation/DocBook/sh.tmpl
... ... @@ -79,10 +79,6 @@
79 79 </sect2>
80 80 </sect1>
81 81 </chapter>
82   - <chapter id="clk">
83   - <title>Clock Framework Extensions</title>
84   -!Iinclude/linux/sh_clk.h
85   - </chapter>
86 82 <chapter id="mach">
87 83 <title>Machine Specific Interfaces</title>
88 84 <sect1 id="dreamcast">
Documentation/sh/clk.txt
1   -Clock framework on SuperH architecture
2   -
3   -The framework on SH extends existing API by the function clk_set_rate_ex,
4   -which prototype is as follows:
5   -
6   - clk_set_rate_ex (struct clk *clk, unsigned long rate, int algo_id)
7   -
8   -The algo_id parameter is used to specify algorithm used to recalculate clocks,
9   -adjanced to clock, specified as first argument. It is assumed that algo_id==0
10   -means no changes to adjanced clock
11   -
12   -Internally, the clk_set_rate_ex forwards request to clk->ops->set_rate method,
13   -if it is present in ops structure. The method should set the clock rate and adjust
14   -all needed clocks according to the passed algo_id.
15   -Exact values for algo_id are machine-dependent. For the sh7722, the following
16   -values are defined:
17   -
18   - NO_CHANGE = 0,
19   - IUS_N1_N1, /* I:U = N:1, U:Sh = N:1 */
20   - IUS_322, /* I:U:Sh = 3:2:2 */
21   - IUS_522, /* I:U:Sh = 5:2:2 */
22   - IUS_N11, /* I:U:Sh = N:1:1 */
23   - SB_N1, /* Sh:B = N:1 */
24   - SB3_N1, /* Sh:B3 = N:1 */
25   - SB3_32, /* Sh:B3 = 3:2 */
26   - SB3_43, /* Sh:B3 = 4:3 */
27   - SB3_54, /* Sh:B3 = 5:4 */
28   - BP_N1, /* B:P = N:1 */
29   - IP_N1 /* I:P = N:1 */
30   -
31   -Each of these constants means relation between clocks that can be set via the FRQCR
32   -register
drivers/sh/clk/core.c
... ... @@ -455,19 +455,13 @@
455 455  
456 456 int clk_set_rate(struct clk *clk, unsigned long rate)
457 457 {
458   - return clk_set_rate_ex(clk, rate, 0);
459   -}
460   -EXPORT_SYMBOL_GPL(clk_set_rate);
461   -
462   -int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id)
463   -{
464 458 int ret = -EOPNOTSUPP;
465 459 unsigned long flags;
466 460  
467 461 spin_lock_irqsave(&clock_lock, flags);
468 462  
469 463 if (likely(clk->ops && clk->ops->set_rate)) {
470   - ret = clk->ops->set_rate(clk, rate, algo_id);
  464 + ret = clk->ops->set_rate(clk, rate, 0);
471 465 if (ret != 0)
472 466 goto out_unlock;
473 467 } else {
... ... @@ -485,7 +479,7 @@
485 479  
486 480 return ret;
487 481 }
488   -EXPORT_SYMBOL_GPL(clk_set_rate_ex);
  482 +EXPORT_SYMBOL_GPL(clk_set_rate);
489 483  
490 484 int clk_set_parent(struct clk *clk, struct clk *parent)
491 485 {
... ... @@ -654,7 +648,7 @@
654 648 clkp->parent);
655 649 if (likely(clkp->ops->set_rate))
656 650 clkp->ops->set_rate(clkp,
657   - rate, NO_CHANGE);
  651 + rate, 0);
658 652 else if (likely(clkp->ops->recalc))
659 653 clkp->rate = clkp->ops->recalc(clkp);
660 654 }
include/linux/sh_clk.h
... ... @@ -67,36 +67,6 @@
67 67 void clk_unregister(struct clk *);
68 68 void clk_enable_init_clocks(void);
69 69  
70   -/**
71   - * clk_set_rate_ex - set the clock rate for a clock source, with additional parameter
72   - * @clk: clock source
73   - * @rate: desired clock rate in Hz
74   - * @algo_id: algorithm id to be passed down to ops->set_rate
75   - *
76   - * Returns success (0) or negative errno.
77   - */
78   -int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id);
79   -
80   -enum clk_sh_algo_id {
81   - NO_CHANGE = 0,
82   -
83   - IUS_N1_N1,
84   - IUS_322,
85   - IUS_522,
86   - IUS_N11,
87   -
88   - SB_N1,
89   -
90   - SB3_N1,
91   - SB3_32,
92   - SB3_43,
93   - SB3_54,
94   -
95   - BP_N1,
96   -
97   - IP_N1,
98   -};
99   -
100 70 struct clk_div_mult_table {
101 71 unsigned int *divisors;
102 72 unsigned int nr_divisors;