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ARM: OMAP4: Clock stubs since CLKDEV not in yet.

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This patch update the common clock.c file for OMAP4. The clk_get() and
clk_put() functions are moved to  common place in arch/arm/common/clkdev.c
Since on current OMAP4 platform clk management is still not supported, the
platform file is stubbed with those functions.

Once the framework is ready, this WILL be replaced with a full
clkdev implementation.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Santosh Shilimkar 2009-05-28 14:16:04 -07:00 committed by Tony Lindgren
parent 44169075e6
commit 748303850d
1 changed files with 33 additions and 0 deletions
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33
arch/arm/plat-omap/clock.c
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@ -36,10 +36,40 @@ static struct clk_functions *arch_clock;
* Standard clock functions defined in include/linux/clk.h * Standard clock functions defined in include/linux/clk.h
*-------------------------------------------------------------------------*/ *-------------------------------------------------------------------------*/
/* This functions is moved to arch/arm/common/clkdev.c. For OMAP4 since
* clock framework is not up , it is defined here to avoid rework in
* every driver. Also dummy prcm reset function is added */
/* Dummy hooks only for OMAP4.For rest OMAPs, common clkdev is used */
#if defined(CONFIG_ARCH_OMAP4)
struct clk *clk_get(struct device *dev, const char *id)
{
return NULL;
}
EXPORT_SYMBOL(clk_get);
void clk_put(struct clk *clk)
{
}
EXPORT_SYMBOL(clk_put);
void omap2_clk_prepare_for_reboot(void)
{
}
EXPORT_SYMBOL(omap2_clk_prepare_for_reboot);
void omap_prcm_arch_reset(char mode)
{
}
EXPORT_SYMBOL(omap_prcm_arch_reset);
#endif
int clk_enable(struct clk *clk) int clk_enable(struct clk *clk)
{ {
unsigned long flags; unsigned long flags;
int ret = 0; int ret = 0;
if (cpu_is_omap44xx())
/* OMAP4 clk framework not supported yet */
return 0;
if (clk == NULL || IS_ERR(clk)) if (clk == NULL || IS_ERR(clk))
return -EINVAL; return -EINVAL;
@ -140,6 +170,9 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
unsigned long flags; unsigned long flags;
int ret = -EINVAL; int ret = -EINVAL;
if (cpu_is_omap44xx())
/* OMAP4 clk framework not supported yet */
return 0;
if (clk == NULL || IS_ERR(clk) || parent == NULL || IS_ERR(parent)) if (clk == NULL || IS_ERR(clk) || parent == NULL || IS_ERR(parent))
return ret; return ret;