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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-06 16:50:35 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-06 16:50:35 -0800
commit3c0cb7c31c206aaedb967e44b98442bbeb17a6c4 (patch)
tree3ecba45d7ffae4fba4a5aafaef4af5b0b1105bde /arch/sh/kernel/clkdev.c
parentf70f5b9dc74ca7d0a64c4ead3fb28da09dc1b234 (diff)
parent404a02cbd2ae8bf256a2fa1169bdfe86bb5ebb34 (diff)
downloadtalos-op-linux-3c0cb7c31c206aaedb967e44b98442bbeb17a6c4.tar.gz
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Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (416 commits) ARM: DMA: add support for DMA debugging ARM: PL011: add DMA burst threshold support for ST variants ARM: PL011: Add support for transmit DMA ARM: PL011: Ensure IRQs are disabled in UART interrupt handler ARM: PL011: Separate hardware FIFO size from TTY FIFO size ARM: PL011: Allow better handling of vendor data ARM: PL011: Ensure error flags are clear at startup ARM: PL011: include revision number in boot-time port printk ARM: vexpress: add sched_clock() for Versatile Express ARM i.MX53: Make MX53 EVK bootable ARM i.MX53: Some bug fix about MX53 MSL code ARM: 6607/1: sa1100: Update platform device registration ARM: 6606/1: sa1100: Fix platform device registration ARM i.MX51: rename IPU irqs ARM i.MX51: Add ipu clock support ARM: imx/mx27_3ds: Add PMIC support ARM: DMA: Replace page_to_dma()/dma_to_page() with pfn_to_dma()/dma_to_pfn() mx51: fix usb clock support MX51: Add support for usb host 2 arch/arm/plat-mxc/ehci.c: fix errors/typos ...
Diffstat (limited to 'arch/sh/kernel/clkdev.c')
-rw-r--r--arch/sh/kernel/clkdev.c171
1 files changed, 0 insertions, 171 deletions
diff --git a/arch/sh/kernel/clkdev.c b/arch/sh/kernel/clkdev.c
deleted file mode 100644
index 1f800ef4a735..000000000000
--- a/arch/sh/kernel/clkdev.c
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- * arch/sh/kernel/clkdev.c
- *
- * Cloned from arch/arm/common/clkdev.c:
- *
- * Copyright (C) 2008 Russell King.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Helper for the clk API to assist looking up a struct clk.
- */
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/list.h>
-#include <linux/errno.h>
-#include <linux/err.h>
-#include <linux/string.h>
-#include <linux/mutex.h>
-#include <linux/clk.h>
-#include <linux/slab.h>
-#include <linux/bootmem.h>
-#include <linux/mm.h>
-#include <asm/clock.h>
-#include <asm/clkdev.h>
-
-static LIST_HEAD(clocks);
-static DEFINE_MUTEX(clocks_mutex);
-
-/*
- * Find the correct struct clk for the device and connection ID.
- * We do slightly fuzzy matching here:
- * An entry with a NULL ID is assumed to be a wildcard.
- * If an entry has a device ID, it must match
- * If an entry has a connection ID, it must match
- * Then we take the most specific entry - with the following
- * order of precedence: dev+con > dev only > con only.
- */
-static struct clk *clk_find(const char *dev_id, const char *con_id)
-{
- struct clk_lookup *p;
- struct clk *clk = NULL;
- int match, best = 0;
-
- list_for_each_entry(p, &clocks, node) {
- match = 0;
- if (p->dev_id) {
- if (!dev_id || strcmp(p->dev_id, dev_id))
- continue;
- match += 2;
- }
- if (p->con_id) {
- if (!con_id || strcmp(p->con_id, con_id))
- continue;
- match += 1;
- }
- if (match == 0)
- continue;
-
- if (match > best) {
- clk = p->clk;
- best = match;
- }
- }
- return clk;
-}
-
-struct clk *clk_get_sys(const char *dev_id, const char *con_id)
-{
- struct clk *clk;
-
- mutex_lock(&clocks_mutex);
- clk = clk_find(dev_id, con_id);
- mutex_unlock(&clocks_mutex);
-
- return clk ? clk : ERR_PTR(-ENOENT);
-}
-EXPORT_SYMBOL(clk_get_sys);
-
-void clkdev_add(struct clk_lookup *cl)
-{
- mutex_lock(&clocks_mutex);
- list_add_tail(&cl->node, &clocks);
- mutex_unlock(&clocks_mutex);
-}
-EXPORT_SYMBOL(clkdev_add);
-
-void __init clkdev_add_table(struct clk_lookup *cl, size_t num)
-{
- mutex_lock(&clocks_mutex);
- while (num--) {
- list_add_tail(&cl->node, &clocks);
- cl++;
- }
- mutex_unlock(&clocks_mutex);
-}
-
-#define MAX_DEV_ID 20
-#define MAX_CON_ID 16
-
-struct clk_lookup_alloc {
- struct clk_lookup cl;
- char dev_id[MAX_DEV_ID];
- char con_id[MAX_CON_ID];
-};
-
-struct clk_lookup * __init_refok
-clkdev_alloc(struct clk *clk, const char *con_id, const char *dev_fmt, ...)
-{
- struct clk_lookup_alloc *cla;
-
- if (!slab_is_available())
- cla = alloc_bootmem_low_pages(sizeof(*cla));
- else
- cla = kzalloc(sizeof(*cla), GFP_KERNEL);
-
- if (!cla)
- return NULL;
-
- cla->cl.clk = clk;
- if (con_id) {
- strlcpy(cla->con_id, con_id, sizeof(cla->con_id));
- cla->cl.con_id = cla->con_id;
- }
-
- if (dev_fmt) {
- va_list ap;
-
- va_start(ap, dev_fmt);
- vscnprintf(cla->dev_id, sizeof(cla->dev_id), dev_fmt, ap);
- cla->cl.dev_id = cla->dev_id;
- va_end(ap);
- }
-
- return &cla->cl;
-}
-EXPORT_SYMBOL(clkdev_alloc);
-
-int clk_add_alias(const char *alias, const char *alias_dev_name, char *id,
- struct device *dev)
-{
- struct clk *r = clk_get(dev, id);
- struct clk_lookup *l;
-
- if (IS_ERR(r))
- return PTR_ERR(r);
-
- l = clkdev_alloc(r, alias, alias_dev_name);
- clk_put(r);
- if (!l)
- return -ENODEV;
- clkdev_add(l);
- return 0;
-}
-EXPORT_SYMBOL(clk_add_alias);
-
-/*
- * clkdev_drop - remove a clock dynamically allocated
- */
-void clkdev_drop(struct clk_lookup *cl)
-{
- struct clk_lookup_alloc *cla = container_of(cl, struct clk_lookup_alloc, cl);
-
- mutex_lock(&clocks_mutex);
- list_del(&cl->node);
- mutex_unlock(&clocks_mutex);
- kfree(cla);
-}
-EXPORT_SYMBOL(clkdev_drop);
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