diff options
Diffstat (limited to 'arch/sh/kernel/cpu')
| -rw-r--r-- | arch/sh/kernel/cpu/clock.c | 27 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh3/clock-sh7709.c | 2 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh4/clock-sh4-202.c | 4 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh4/clock-sh7780.c | 2 |
4 files changed, 29 insertions, 6 deletions
diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c index 51ec64cdf34..abb586b1256 100644 --- a/arch/sh/kernel/cpu/clock.c +++ b/arch/sh/kernel/cpu/clock.c @@ -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; diff --git a/arch/sh/kernel/cpu/sh3/clock-sh7709.c b/arch/sh/kernel/cpu/sh3/clock-sh7709.c index 10461a745e5..b791a29fdb6 100644 --- a/arch/sh/kernel/cpu/sh3/clock-sh7709.c +++ b/arch/sh/kernel/cpu/sh3/clock-sh7709.c @@ -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); } diff --git a/arch/sh/kernel/cpu/sh4/clock-sh4-202.c b/arch/sh/kernel/cpu/sh4/clock-sh4-202.c index bfdf5fe8d94..fa2019aabd7 100644 --- a/arch/sh/kernel/cpu/sh4/clock-sh4-202.c +++ b/arch/sh/kernel/cpu/sh4/clock-sh4-202.c @@ -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++) { diff --git a/arch/sh/kernel/cpu/sh4/clock-sh7780.c b/arch/sh/kernel/cpu/sh4/clock-sh7780.c index 93ad367342c..9e6a216750c 100644 --- a/arch/sh/kernel/cpu/sh4/clock-sh7780.c +++ b/arch/sh/kernel/cpu/sh4/clock-sh7780.c @@ -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++) { |