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Commit 1d118562 authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: Clock framework tidying. 



This syncs up the SH clock framework with the linux/clk.h API,
for which there were only some minor changes required, namely
the clk_get() dev_id and subsequent callsites.

Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent e74b5680

arch/sh/kernel/cpu/clock.c

+25 −2
Original line number Diff line number Diff line
@@ -5,9 +5,11 @@ 
 *

 * This clock framework is derived from the OMAP version by:

 *

 *	Copyright (C) 2004 Nokia Corporation

 *	Copyright (C) 2004 - 2005 Nokia Corporation

 *	Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>

 *

 *  Modified for omap shared clock framework by Tony Lindgren <tony@atomide.com>

 *

 * This file is subject to the terms and conditions of the GNU General Public

 * License.  See the file "COPYING" in the main directory of this archive

 * for more details.
@@ -20,6 +22,7 @@ 
#include <linux/kref.h>

#include <linux/seq_file.h>

#include <linux/err.h>

#include <linux/platform_device.h>

#include <asm/clock.h>

#include <asm/timer.h>
@@ -195,17 +198,37 @@ void clk_recalc_rate(struct clk *clk) 
		propagate_rate(clk);

}



struct clk *clk_get(const char *id)

/*

 * Returns a clock. Note that we first try to use device id on the bus

 * and clock name. If this fails, we try to use clock name only.

 */

struct clk *clk_get(struct device *dev, const char *id)

{

	struct clk *p, *clk = ERR_PTR(-ENOENT);

	int idno;



	if (dev == NULL || dev->bus != &platform_bus_type)

		idno = -1;

	else

		idno = to_platform_device(dev)->id;



	mutex_lock(&clock_list_sem);

	list_for_each_entry(p, &clock_list, node) {

		if (p->id == idno &&

		    strcmp(id, p->name) == 0 && try_module_get(p->owner)) {

			clk = p;

			goto found;

		}

	}



	list_for_each_entry(p, &clock_list, node) {

		if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) {

			clk = p;

			break;

		}

	}



found:

	mutex_unlock(&clock_list_sem);



	return clk;

arch/sh/kernel/cpu/sh3/clock-sh7709.c

+1 −1
Original line number Diff line number Diff line
@@ -24,7 +24,7 @@ static int pfc_divisors[] = { 1, 2, 4, 1, 3, 6, 1, 1 }; 


static void set_bus_parent(struct clk *clk)

{

	struct clk *bus_clk = clk_get("bus_clk");

	struct clk *bus_clk = clk_get(NULL, "bus_clk");

	clk->parent = bus_clk;

	clk_put(bus_clk);

}

arch/sh/kernel/cpu/sh4/clock-sh4-202.c

+2 −2
Original line number Diff line number Diff line
@@ -97,7 +97,7 @@ static void shoc_clk_recalc(struct clk *clk) 


static int shoc_clk_verify_rate(struct clk *clk, unsigned long rate)

{

	struct clk *bclk = clk_get("bus_clk");

	struct clk *bclk = clk_get(NULL, "bus_clk");

	unsigned long bclk_rate = clk_get_rate(bclk);



	clk_put(bclk);
@@ -151,7 +151,7 @@ static struct clk *sh4202_onchip_clocks[] = { 


static int __init sh4202_clk_init(void)

{

	struct clk *clk = clk_get("master_clk");

	struct clk *clk = clk_get(NULL, "master_clk");

	int i;



	for (i = 0; i < ARRAY_SIZE(sh4202_onchip_clocks); i++) {

arch/sh/kernel/cpu/sh4/clock-sh7780.c

+1 −1
Original line number Diff line number Diff line
@@ -98,7 +98,7 @@ static struct clk *sh7780_onchip_clocks[] = { 


static int __init sh7780_clk_init(void)

{

	struct clk *clk = clk_get("master_clk");

	struct clk *clk = clk_get(NULL, "master_clk");

	int i;



	for (i = 0; i < ARRAY_SIZE(sh7780_onchip_clocks); i++) {

arch/sh/kernel/timers/timer-cmt.c

+2 −2
Original line number Diff line number Diff line
@@ -124,7 +124,7 @@ static void cmt_clk_init(struct clk *clk) 
	u8 divisor = CMT_CMCSR_INIT & 0x3;

	ctrl_inw(CMT_CMCSR_0);

	ctrl_outw(CMT_CMCSR_INIT, CMT_CMCSR_0);

	clk->parent = clk_get("module_clk");

	clk->parent = clk_get(NULL, "module_clk");

	clk->rate = clk->parent->rate / (8 << (divisor << 1));

}
@@ -164,7 +164,7 @@ static int cmt_timer_init(void) 


	setup_irq(CONFIG_SH_TIMER_IRQ, &cmt_irq);



	cmt0_clk.parent = clk_get("module_clk");

	cmt0_clk.parent = clk_get(NULL, "module_clk");



	cmt_timer_stop();