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>

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index e438437..23b5f05 100644 (file)
--- 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 7b2b099..d3ef147 100644 (file)
--- 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 6d7ba37..12ad0f5 100644 (file)
--- 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);