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| author | Tero Kristo <t-kristo@ti.com> | 2014-07-02 11:47:41 +0300 |
|---|---|---|
| committer | Paul Walmsley <paul@pwsan.com> | 2014-07-15 14:09:03 -0600 |
| commit | 5f84aeb6a194ed127d1beb61738577c15a60172b (patch) | |
| tree | aef556fff13ee2b64c8f33727b2bf3f0c4a29763 /arch | |
| parent | a24886e263ec4b7062c88cfa84577080ea00da94 (diff) | |
| download | linux-5f84aeb6a194ed127d1beb61738577c15a60172b.tar.bz2 | |
ARM: OMAP2+: clock/dpll: add private API for checking if DPLL is in bypass
Currently, same functionality is copy pasted in two locations. Instead,
add a private API for this and get rid of some duplicated code.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-omap2/clkt_dpll.c | 60 |
1 files changed, 32 insertions, 28 deletions
diff --git a/arch/arm/mach-omap2/clkt_dpll.c b/arch/arm/mach-omap2/clkt_dpll.c index 05168c98b3d9..098e0893a6a6 100644 --- a/arch/arm/mach-omap2/clkt_dpll.c +++ b/arch/arm/mach-omap2/clkt_dpll.c @@ -175,6 +175,33 @@ static int _dpll_test_mult(int *m, int n, unsigned long *new_rate, return r; } +/** + * _omap2_dpll_is_in_bypass - check if DPLL is in bypass mode or not + * @v: bitfield value of the DPLL enable + * + * Checks given DPLL enable bitfield to see whether the DPLL is in bypass + * mode or not. Returns 1 if the DPLL is in bypass, 0 otherwise. + */ +static int _omap2_dpll_is_in_bypass(u32 v) +{ + if (cpu_is_omap24xx()) { + if (v == OMAP2XXX_EN_DPLL_LPBYPASS || + v == OMAP2XXX_EN_DPLL_FRBYPASS) + return 1; + } else if (cpu_is_omap34xx()) { + if (v == OMAP3XXX_EN_DPLL_LPBYPASS || + v == OMAP3XXX_EN_DPLL_FRBYPASS) + return 1; + } else if (soc_is_am33xx() || cpu_is_omap44xx() || soc_is_am43xx()) { + if (v == OMAP4XXX_EN_DPLL_LPBYPASS || + v == OMAP4XXX_EN_DPLL_FRBYPASS || + v == OMAP4XXX_EN_DPLL_MNBYPASS) + return 1; + } + + return 0; +} + /* Public functions */ u8 omap2_init_dpll_parent(struct clk_hw *hw) { @@ -191,20 +218,9 @@ u8 omap2_init_dpll_parent(struct clk_hw *hw) v >>= __ffs(dd->enable_mask); /* Reparent the struct clk in case the dpll is in bypass */ - if (cpu_is_omap24xx()) { - if (v == OMAP2XXX_EN_DPLL_LPBYPASS || - v == OMAP2XXX_EN_DPLL_FRBYPASS) - return 1; - } else if (cpu_is_omap34xx()) { - if (v == OMAP3XXX_EN_DPLL_LPBYPASS || - v == OMAP3XXX_EN_DPLL_FRBYPASS) - return 1; - } else if (soc_is_am33xx() || cpu_is_omap44xx() || soc_is_am43xx()) { - if (v == OMAP4XXX_EN_DPLL_LPBYPASS || - v == OMAP4XXX_EN_DPLL_FRBYPASS || - v == OMAP4XXX_EN_DPLL_MNBYPASS) - return 1; - } + if (_omap2_dpll_is_in_bypass(v)) + return 1; + return 0; } @@ -237,20 +253,8 @@ unsigned long omap2_get_dpll_rate(struct clk_hw_omap *clk) v &= dd->enable_mask; v >>= __ffs(dd->enable_mask); - if (cpu_is_omap24xx()) { - if (v == OMAP2XXX_EN_DPLL_LPBYPASS || - v == OMAP2XXX_EN_DPLL_FRBYPASS) - return __clk_get_rate(dd->clk_bypass); - } else if (cpu_is_omap34xx()) { - if (v == OMAP3XXX_EN_DPLL_LPBYPASS || - v == OMAP3XXX_EN_DPLL_FRBYPASS) - return __clk_get_rate(dd->clk_bypass); - } else if (soc_is_am33xx() || cpu_is_omap44xx() || soc_is_am43xx()) { - if (v == OMAP4XXX_EN_DPLL_LPBYPASS || - v == OMAP4XXX_EN_DPLL_FRBYPASS || - v == OMAP4XXX_EN_DPLL_MNBYPASS) - return __clk_get_rate(dd->clk_bypass); - } + if (_omap2_dpll_is_in_bypass(v)) + return __clk_get_rate(dd->clk_bypass); v = omap2_clk_readl(clk, dd->mult_div1_reg); dpll_mult = v & dd->mult_mask; |