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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-14 06:45:30 -0200
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-14 06:45:30 -0200
commitb93cd6a0c7352b428ba2b8437b44fff6e76d81d2 (patch)
tree9521480c841f978f8299374a649d4c2ef0b2b22b /drivers/sh/clk/core.c
parentd291ffb3cf4f8f74b73bac77478c619251ee8a9f (diff)
parentab4f75cd0a9f5ffdcc3d9fc2b29ca14525215b78 (diff)
downloadlinux-linaro-stable-b93cd6a0c7352b428ba2b8437b44fff6e76d81d2.tar.gz
Merge branch 'sh-fixes-for-linus' of git://github.com/pmundt/linux-sh
* 'sh-fixes-for-linus' of git://github.com/pmundt/linux-sh: mailmap: Fix up some renesas attributions sh: clkfwk: Kill off remaining debugfs cruft. drivers: sh: Kill off dead pathname for runtime PM stub. drivers: sh: Generalize runtime PM platform stub. sh: Wire up process_vm syscalls. sh: clkfwk: add clk_rate_mult_range_round() serial: sh-sci: Fix up SH-2A SCIF support. sh: Fix cached/uncaced address calculation in 29bit mode
Diffstat (limited to 'drivers/sh/clk/core.c')
-rw-r--r--drivers/sh/clk/core.c107
1 files changed, 20 insertions, 87 deletions
diff --git a/drivers/sh/clk/core.c b/drivers/sh/clk/core.c
index dc8d022c07a1..db257a35e71a 100644
--- a/drivers/sh/clk/core.c
+++ b/drivers/sh/clk/core.c
@@ -25,7 +25,6 @@
#include <linux/seq_file.h>
#include <linux/err.h>
#include <linux/io.h>
-#include <linux/debugfs.h>
#include <linux/cpufreq.h>
#include <linux/clk.h>
#include <linux/sh_clk.h>
@@ -173,6 +172,26 @@ long clk_rate_div_range_round(struct clk *clk, unsigned int div_min,
return clk_rate_round_helper(&div_range_round);
}
+static long clk_rate_mult_range_iter(unsigned int pos,
+ struct clk_rate_round_data *rounder)
+{
+ return clk_get_rate(rounder->arg) * pos;
+}
+
+long clk_rate_mult_range_round(struct clk *clk, unsigned int mult_min,
+ unsigned int mult_max, unsigned long rate)
+{
+ struct clk_rate_round_data mult_range_round = {
+ .min = mult_min,
+ .max = mult_max,
+ .func = clk_rate_mult_range_iter,
+ .arg = clk_get_parent(clk),
+ .rate = rate,
+ };
+
+ return clk_rate_round_helper(&mult_range_round);
+}
+
int clk_rate_table_find(struct clk *clk,
struct cpufreq_frequency_table *freq_table,
unsigned long rate)
@@ -205,9 +224,6 @@ int clk_reparent(struct clk *child, struct clk *parent)
list_add(&child->sibling, &parent->children);
child->parent = parent;
- /* now do the debugfs renaming to reattach the child
- to the proper parent */
-
return 0;
}
@@ -665,89 +681,6 @@ static int __init clk_syscore_init(void)
subsys_initcall(clk_syscore_init);
#endif
-/*
- * debugfs support to trace clock tree hierarchy and attributes
- */
-static struct dentry *clk_debugfs_root;
-
-static int clk_debugfs_register_one(struct clk *c)
-{
- int err;
- struct dentry *d;
- struct clk *pa = c->parent;
- char s[255];
- char *p = s;
-
- p += sprintf(p, "%p", c);
- d = debugfs_create_dir(s, pa ? pa->dentry : clk_debugfs_root);
- if (!d)
- return -ENOMEM;
- c->dentry = d;
-
- d = debugfs_create_u8("usecount", S_IRUGO, c->dentry, (u8 *)&c->usecount);
- if (!d) {
- err = -ENOMEM;
- goto err_out;
- }
- d = debugfs_create_u32("rate", S_IRUGO, c->dentry, (u32 *)&c->rate);
- if (!d) {
- err = -ENOMEM;
- goto err_out;
- }
- d = debugfs_create_x32("flags", S_IRUGO, c->dentry, (u32 *)&c->flags);
- if (!d) {
- err = -ENOMEM;
- goto err_out;
- }
- return 0;
-
-err_out:
- debugfs_remove_recursive(c->dentry);
- return err;
-}
-
-static int clk_debugfs_register(struct clk *c)
-{
- int err;
- struct clk *pa = c->parent;
-
- if (pa && !pa->dentry) {
- err = clk_debugfs_register(pa);
- if (err)
- return err;
- }
-
- if (!c->dentry) {
- err = clk_debugfs_register_one(c);
- if (err)
- return err;
- }
- return 0;
-}
-
-static int __init clk_debugfs_init(void)
-{
- struct clk *c;
- struct dentry *d;
- int err;
-
- d = debugfs_create_dir("clock", NULL);
- if (!d)
- return -ENOMEM;
- clk_debugfs_root = d;
-
- list_for_each_entry(c, &clock_list, node) {
- err = clk_debugfs_register(c);
- if (err)
- goto err_out;
- }
- return 0;
-err_out:
- debugfs_remove_recursive(clk_debugfs_root);
- return err;
-}
-late_initcall(clk_debugfs_init);
-
static int __init clk_late_init(void)
{
unsigned long flags;