diff options
| author | Tero Kristo <t-kristo@ti.com> | 2014-07-02 12:47:43 +0400 |
|---|---|---|
| committer | Paul Walmsley <paul@pwsan.com> | 2014-07-16 00:09:10 +0400 |
| commit | 2337c5b58b6e9fd2fb46ab64e7ccbc44dc0ba40a (patch) | |
| tree | 5bd127df70fb561597491ca34d68554633eb585b /arch/arm | |
| parent | 512d91cbd990c67df16d0a7b3ff5d35055ac6b39 (diff) | |
| download | linux-2337c5b58b6e9fd2fb46ab64e7ccbc44dc0ba40a.tar.xz | |
ARM: OMAP2+: clock/dpll: add jitter correction behind clk_features
Currently DPLL code uses runtime cpu_is_343x checks to see if the DPLL
has freqsel fields in its control register or not. Instead, add a new
flag to the clk_features.flags and use this during runtime. Allows
eventual move of the DPLL code under clock driver.
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/arm')
| -rw-r--r-- | arch/arm/mach-omap2/clock.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clock.h | 3 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/dpll3xxx.c | 4 |
3 files changed, 9 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index e4384377d9f8..23b5f050c8a9 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -784,4 +784,8 @@ void __init ti_clk_init_features(void) (1 << OMAP4XXX_EN_DPLL_FRBYPASS) | (1 << OMAP4XXX_EN_DPLL_MNBYPASS); } + + /* Jitter correction only available on OMAP343X */ + if (cpu_is_omap343x()) + ti_clk_features.flags |= TI_CLK_DPLL_HAS_FREQSEL; } diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h index 7b2b099c6a83..d3ef147b32a1 100644 --- a/arch/arm/mach-omap2/clock.h +++ b/arch/arm/mach-omap2/clock.h @@ -234,6 +234,9 @@ struct ti_clk_features { long fint_band2_min; u8 dpll_bypass_vals; }; + +#define TI_CLK_DPLL_HAS_FREQSEL (1 << 0) + extern struct ti_clk_features ti_clk_features; extern const struct clkops clkops_omap2_dflt_wait; diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c index 6d7ba37e2257..12ad0f5b15bf 100644 --- a/arch/arm/mach-omap2/dpll3xxx.c +++ b/arch/arm/mach-omap2/dpll3xxx.c @@ -310,7 +310,7 @@ static int omap3_noncore_dpll_program(struct clk_hw_omap *clk, u16 freqsel) * Set jitter correction. Jitter correction applicable for OMAP343X * only since freqsel field is no longer present on other devices. */ - if (cpu_is_omap343x()) { + if (ti_clk_features.flags & TI_CLK_DPLL_HAS_FREQSEL) { v = omap2_clk_readl(clk, dd->control_reg); v &= ~dd->freqsel_mask; v |= freqsel << __ffs(dd->freqsel_mask); @@ -512,7 +512,7 @@ int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate, return -EINVAL; /* Freqsel is available only on OMAP343X devices */ - if (cpu_is_omap343x()) { + if (ti_clk_features.flags & TI_CLK_DPLL_HAS_FREQSEL) { freqsel = _omap3_dpll_compute_freqsel(clk, dd->last_rounded_n); WARN_ON(!freqsel); |