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ARM: OMAP3+: dpll: use DPLLs recalc function instead of omap2_get_dpll_rate

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This is a continuation of Mike Turquette's patch "OMAP3+: use
DPLL's round_rate when setting rate".

omap3_noncore_dpll_set_rate() and omap3_noncore_dpll_enable() call
omap2_get_dpll_rate() explicitly. It may be necessary for some
DPLLs to use a different function and so use the DPLLs recalc()
function pointer instead.

An example is the DPLL_ABE on OMAP4 which can have a 4X multiplier
in addition to the usual MN multipler and dividers and therefore
uses a different round_rate and recalc function.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Cc: Mike Turquette <mturquette@ti.com>
Cc: Misael Lopez Cruz <misael.lopez@ti.com>
[paul@pwsan.com: merged this patch with Mike's "use clock's recalc in DPLL
 handling" patch; also reported by Misael]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Jon Hunter 2011-10-07 00:53:01 -06:00 committed by Paul Walmsley
parent 273a1ce9cf
commit 49642ac816
1 changed files with 5 additions and 2 deletions
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7
arch/arm/mach-omap2/dpll3xxx.c
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@ -390,7 +390,8 @@ int omap3_noncore_dpll_enable(struct clk *clk)
* propagating?
*/
if (!r)
clk->rate = omap2_get_dpll_rate(clk);
clk->rate = (clk->recalc) ? clk->recalc(clk) :
omap2_get_dpll_rate(clk);
return r;
}
@ -424,6 +425,7 @@ void omap3_noncore_dpll_disable(struct clk *clk)
int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate)
{
struct clk *new_parent = NULL;
unsigned long hw_rate;
u16 freqsel = 0;
struct dpll_data *dd;
int ret;
@ -435,7 +437,8 @@ int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate)
if (!dd)
return -EINVAL;
if (rate == omap2_get_dpll_rate(clk))
hw_rate = (clk->recalc) ? clk->recalc(clk) : omap2_get_dpll_rate(clk);
if (rate == hw_rate)
return 0;
/*