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| author | Jon Hunter <jon-hunter@ti.com> | 2011-10-07 08:53:01 +0200 |
|---|---|---|
| committer | Paul Walmsley <paul@pwsan.com> | 2011-10-07 09:01:22 +0200 |
| commit | 49642ac816a714f3037b7cd6401a46c8fe46e795 (patch) | |
| tree | 1bfd6d38e653f257ef83a8dcba73d413620bf872 /arch/arm/mach-omap2 | |
| parent | ARM: OMAP3+: dpll: assign clk rate from rounded rate during rate set (diff) | |
| download | linux-49642ac816a714f3037b7cd6401a46c8fe46e795.tar.xz linux-49642ac816a714f3037b7cd6401a46c8fe46e795.zip | |
ARM: OMAP3+: dpll: use DPLLs recalc function instead of omap2_get_dpll_rate
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>
Diffstat (limited to 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/dpll3xxx.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c index 73a1595c5f21..fc56745676fa 100644 --- a/arch/arm/mach-omap2/dpll3xxx.c +++ b/arch/arm/mach-omap2/dpll3xxx.c @@ -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; /* |